Station Overview Station Location
Station Number AZ-SC-1 Latitude 31.669837
Station Name Sonoita 1.3 SE Longitude -110.636537
County Santa Cruz Elevation (ft) 4834



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 09 1.28 0.33 31 0.33 31 0.00 0 0 3 2 0.0 0 0
Nov 09 0.69 0.13 30 0.13 30 0.00 0 0 2 0 0.0 0 0
Dec 09 1.30 0.84 31 0.84 31 0.00 0 0 3 3 2.0 1 1
Jan 10 1.19 4.32 28 4.32 28 0.00 0 0 6 2 8.0 2 2
Feb 10 1.04 1.99 28 1.99 28 0.00 0 0 7 1 1.0 1 0
March 10 0.97 0.32 31 0.32 31 0.00 0 0 5 0 0.5 1 0
April 10 0.48 0.90 30 0.90 30 0.00 0 0 3 3 2.5 1 0
May 10 0.22 0.00 31 0.00 31 0.00 0 0 0 1 0.0 0 0
June 10 0.60 0.00 30 0.00 30 0.00 0 0 0 4 0.0 0 0
July 10 3.78 4.74 31 4.74 31 0.00 0 0 15 6 0.0 0 0
Aug 10 3.93 2.69 31 2.69 31 0.00 0 0 9 3 0.0 0 0
Sept 10 1.60 1.97 30 1.97 30 0.00 0 0 5 2 0.0 0 0
Water Year Totals: 17.08" 18.23" 362 days 18.23" 362 0.00" 0 days 0 58 days 27 days 14.0" 6 days 3 days



Days in Water Year Cell Color Key
        Daily Observation with Prcp         Missing Day
        Multiday Observation         Daily/Multiday Observation Conflict

Day of Year Daily Prcp Multiday Prcp
10/1/2009 0.00
10/2/2009 0.00
10/3/2009 0.19
10/4/2009 0.02
10/5/2009 0.00
10/6/2009 0.00
10/7/2009 0.00
10/8/2009 0.00
10/9/2009 0.00
10/10/2009 0.00
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.00
10/14/2009 0.00
10/15/2009 0.00
10/16/2009 0.00
10/17/2009 0.00
10/18/2009 T
10/19/2009 0.00
10/20/2009 T
10/21/2009 0.00
10/22/2009 0.00
10/23/2009 0.00
10/24/2009 0.00
10/25/2009 0.00
10/26/2009 0.00
10/27/2009 0.00
10/28/2009 0.12
10/29/2009 0.00
10/30/2009 0.00
10/31/2009 0.00
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.05
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.00
11/25/2009 0.00
11/26/2009 0.00
11/27/2009 0.00
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.08
12/1/2009 0.00
12/2/2009 0.00
12/3/2009 0.00
12/4/2009 0.00
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.03
12/8/2009 0.34
12/9/2009 0.00
12/10/2009 0.00
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.00
12/14/2009 T
12/15/2009 0.00
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.00
12/20/2009 0.00
12/21/2009 0.00
12/22/2009 T
12/23/2009 0.47
12/24/2009 0.00
12/25/2009 0.00
12/26/2009 0.00
12/27/2009 0.00
12/28/2009 0.00
12/29/2009 T
12/30/2009 0.00
12/31/2009 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.00
1/2/2010 0.00
1/3/2010 0.00
1/4/2010 0.00
1/5/2010 0.00
1/6/2010 0.00
1/7/2010 0.00
1/8/2010 0.00
1/9/2010 0.00
1/10/2010 0.00
1/11/2010 0.00
1/12/2010 0.00
1/13/2010 0.00
1/14/2010 T
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.00
1/19/2010 0.06
1/20/2010 0.55
1/21/2010 0.74
1/22/2010 2.38
1/23/2010 0.39
1/24/2010 0.00
1/25/2010 0.00
1/26/2010 0.00
1/27/2010 0.20
1/28/2010 T
1/29/2010
1/30/2010
1/31/2010
2/1/2010 0.00
2/2/2010 T
2/3/2010 0.58
2/4/2010 0.00
2/5/2010 0.00
2/6/2010 0.00
2/7/2010 0.22
2/8/2010 0.00
2/9/2010 0.00
2/10/2010 0.21
2/11/2010 0.10
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.00
2/15/2010 0.00
2/16/2010 0.00
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.39
2/21/2010 0.00
2/22/2010 0.16
2/23/2010 0.00
2/24/2010 0.00
2/25/2010 0.00
2/26/2010 0.00
2/27/2010 0.00
2/28/2010 0.33
3/1/2010 0.00
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.00
3/6/2010 0.03
3/7/2010 0.00
3/8/2010 0.19
3/9/2010 0.04
3/10/2010 0.00
3/11/2010 0.02
3/12/2010 0.00
3/13/2010 0.00
3/14/2010 0.00
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.04
3/24/2010 0.00
3/25/2010 0.00
3/26/2010 0.00
3/27/2010 0.00
3/28/2010 0.00
3/29/2010 0.00
3/30/2010 0.00
3/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.06
4/2/2010 0.00
4/3/2010 0.00
4/4/2010 0.00
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 0.00
4/8/2010 0.00
4/9/2010 0.00
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 0.00
4/14/2010 0.00
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.00
4/19/2010 T
4/20/2010 0.00
4/21/2010 T
4/22/2010 0.19
4/23/2010 0.65
4/24/2010 0.00
4/25/2010 0.00
4/26/2010 0.00
4/27/2010 0.00
4/28/2010 0.00
4/29/2010 0.00
4/30/2010 T
5/1/2010 0.00
5/2/2010 T
5/3/2010 0.00
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.00
5/8/2010 0.00
5/9/2010 0.00
5/10/2010 0.00
5/11/2010 0.00
5/12/2010 0.00
5/13/2010 0.00
5/14/2010 0.00
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 0.00
5/18/2010 0.00
5/19/2010 0.00
5/20/2010 0.00
5/21/2010 0.00
5/22/2010 0.00
5/23/2010 0.00
5/24/2010 0.00
5/25/2010 0.00
5/26/2010 0.00
5/27/2010 0.00
5/28/2010 0.00
5/29/2010 0.00
5/30/2010 0.00
5/31/2010 0.00
6/1/2010 0.00
6/2/2010 0.00
6/3/2010 0.00
6/4/2010 0.00
6/5/2010 0.00
6/6/2010 0.00
6/7/2010 0.00
6/8/2010 0.00
6/9/2010 0.00
6/10/2010 0.00
6/11/2010 0.00
6/12/2010 0.00
6/13/2010 0.00
6/14/2010 0.00
6/15/2010 0.00
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 0.00
6/22/2010 0.00
6/23/2010 0.00
6/24/2010 0.00
6/25/2010 T
6/26/2010 0.00
6/27/2010 0.00
6/28/2010 T
6/29/2010 T
6/30/2010 T
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.42
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 T
7/7/2010 0.00
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.16
7/11/2010 T
7/12/2010 0.00
7/13/2010 0.03
7/14/2010 0.10
7/15/2010 0.08
7/16/2010 T
7/17/2010 0.42
7/18/2010 T
7/19/2010 0.07
7/20/2010 0.00
7/21/2010 0.04
7/22/2010 0.11
7/23/2010 T
7/24/2010 0.00
7/25/2010 T
7/26/2010 0.12
7/27/2010 1.14
7/28/2010 0.12
7/29/2010 0.75
7/30/2010 1.13
7/31/2010 0.05
8/1/2010 0.00
8/2/2010 0.00
8/3/2010 0.00
8/4/2010 0.00
8/5/2010 0.00
8/6/2010 0.07
8/7/2010 0.04
8/8/2010 0.00
8/9/2010 0.00
8/10/2010 0.00
8/11/2010 0.28
8/12/2010 0.00
8/13/2010 0.00
8/14/2010 0.09
8/15/2010 0.52
8/16/2010 0.94
8/17/2010 0.00
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 T
8/22/2010 T
8/23/2010 0.00
8/24/2010 0.47
8/25/2010 T
8/26/2010 0.00
8/27/2010 0.22
8/28/2010 0.00
8/29/2010 0.06
8/30/2010 0.00
8/31/2010 0.00
9/1/2010 0.00
9/2/2010 0.00
9/3/2010 T
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 1.04
9/7/2010 0.01
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.00
9/12/2010 T
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.00
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 0.00
9/20/2010 0.01
9/21/2010 0.39
9/22/2010 0.52
9/23/2010 0.00
9/24/2010 0.00
9/25/2010 0.00
9/26/2010 0.00
9/27/2010 0.00
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.00 0.0 M M M
10/2/2009 7:00 AM 0.00 0.0 M M M
10/3/2009 12:00 PM 0.19 M M M M Midnight to midnight total. Unusual weather for October with rather chilly, overcast conditions with periods of light rain and occasional fog. Moisture was remnants of T.S. OLAF.
10/4/2009 12:00 PM 0.02 M M M M Midnight to midnight total. Periods of drizzle, light rain, and fog from the 3rd continued into the early morning hours on the 4th with light precip accumulation.
10/5/2009 7:00 AM 0.00 0.0 M M M
10/6/2009 7:00 AM 0.00 0.0 M M M
10/7/2009 7:00 AM 0.00 0.0 M M M
10/8/2009 7:00 AM 0.00 0.0 M M M
10/9/2009 7:00 AM 0.00 0.0 M M M
10/10/2009 7:00 AM 0.00 0.0 M M M
10/11/2009 7:00 AM 0.00 0.0 M M M
10/12/2009 7:00 AM 0.00 0.0 M M M
10/13/2009 7:00 AM 0.00 0.0 M M M
10/14/2009 7:00 AM 0.00 0.0 M M M
10/15/2009 7:00 AM 0.00 0.0 M M M
10/16/2009 7:00 AM 0.00 0.0 M M M
10/17/2009 7:00 AM 0.00 0.0 M M M
10/18/2009 12:00 PM T M M M M Midnight to midnight total. A few t-storms were in the area during the afternoon and evening but only a trace of rain fell on-station around 1805 hrs.
10/19/2009 7:00 AM 0.00 0.0 M M M
10/20/2009 12:00 PM T M M M M Midnight to midnight total. The combination of a trugh passage and above average moisture level led to a severe t-storm watch for the local area during the afternoon hours. Although RW+ could be seen within a mile or so only a trace of rain fell on station around 1130 hrs.
10/21/2009 7:00 AM 0.00 0.0 M M M
10/22/2009 7:00 AM 0.00 0.0 M M M
10/23/2009 7:00 AM 0.00 0.0 M M M
10/24/2009 7:00 AM 0.00 0.0 M M M
10/25/2009 7:00 AM 0.00 0.0 M M M
10/26/2009 7:00 AM 0.00 0.0 M M M
10/27/2009 7:00 AM 0.00 0.0 M M M
10/28/2009 12:00 PM 0.12 M M M M Midnight to midnight total. The first major trough and frontal passage of the season was preceded by winds gusts of 51 mph on-station before midnight of the 27th followed by RW- before dawn on the 28th.
10/29/2009 7:00 AM 0.00 0.0 M M M
10/30/2009 7:00 AM 0.00 0.0 M M M
10/31/2009 7:00 AM 0.00 0.0 M M M
11/1/2009 7:00 AM 0.00 0.0 M M M
11/2/2009 7:00 AM 0.00 0.0 M M M
11/3/2009 7:00 AM 0.00 0.0 M M M
11/4/2009 7:00 AM 0.00 0.0 M M M
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM 0.00 0.0 M M M
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.00 0.0 M M M
11/12/2009 7:00 AM 0.00 0.0 M M M
11/13/2009 7:00 AM 0.00 0.0 M M M
11/14/2009 12:00 PM 0.05 M M M M The passage of an embedded vort max within a long-wave trough feature brought a period of RW- to the local area during the late afternoon & early evening hours.
11/15/2009 7:00 AM 0.00 0.0 M M M
11/16/2009 7:00 AM 0.00 0.0 M M M
11/17/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.00 0.0 M M M
11/20/2009 7:00 AM 0.00 0.0 M M M
11/21/2009 7:00 AM 0.00 0.0 M M M
11/22/2009 7:00 AM 0.00 0.0 M M M
11/23/2009 7:00 AM 0.00 0.0 M M M
11/24/2009 7:00 AM 0.00 0.0 M M M
11/25/2009 7:00 AM 0.00 0.0 M M M
11/26/2009 7:00 AM 0.00 0.0 M M M
11/27/2009 7:00 AM 0.00 0.0 M M M
11/28/2009 7:00 AM 0.00 0.0 M M M
11/29/2009 7:00 AM 0.00 0.0 M M M
11/30/2009 12:00 PM 0.08 M M M M The approach and passage of a cold upper level low and trough brought RW- to the area during the pre-dawn period with a few additional afternoon showers. Despite the issuance of a Winter Storm Warning no snow fell on station (5000' elev.)
12/1/2009 7:00 AM 0.00 0.0 M M M
12/2/2009 7:00 AM 0.00 0.0 M M M
12/3/2009 7:00 AM 0.00 0.0 M M M
12/4/2009 7:00 AM 0.00 0.0 M M M
12/5/2009 7:00 AM 0.00 0.0 M M M
12/6/2009 7:00 AM 0.00 0.0 M M M
12/7/2009 12:00 PM 0.03 M M M M The approach & arrival of an intense upper level trough brought RW- to the local area by the evening hours as well as wind gusts to 46 mph.
12/8/2009 12:00 PM 0.34 M M M M The approach & arrival of an intense upper level trough brought pre-dawn RW+ to the local area as well as wind gusts to 49 mph.
12/9/2009 12:00 PM 0.00 0.0 M M M
12/10/2009 7:00 AM 0.00 0.0 M M M
12/11/2009 7:00 AM 0.00 0.0 M M M
12/12/2009 7:00 AM 0.00 0.0 M M M
12/13/2009 7:00 AM 0.00 0.0 M M M
12/14/2009 12:00 PM T M M M M A weak trough passage brought a few RW- to the area during the a.m. period.
12/15/2009 7:00 AM 0.00 0.0 M M M
12/16/2009 7:00 AM 0.00 0.0 M M M
12/17/2009 7:00 AM 0.00 0.0 M M M
12/18/2009 7:00 AM 0.00 0.0 M M M
12/19/2009 7:00 AM 0.00 0.0 M M M
12/20/2009 7:00 AM 0.00 0.0 M M M
12/21/2009 7:00 AM 0.00 0.0 M M M
12/22/2009 12:00 PM T M M M M A large and cold winter storm was on the approach this day and a few RW- occurred around 2035 hrs.
12/23/2009 12:00 PM 0.47 2.0 0.22 2.0 M The arrival of a strong winter storm delivered RW on-station after midnight followed by 2" of snow that lasted until 0700 hrs. Liquid precip + water equivalent of snow = 0.47". Snow did not completely melt until 12/29.
12/24/2009 7:00 AM 0.00 0.0 M M M
12/25/2009 7:00 AM 0.00 0.0 M M M
12/26/2009 7:00 AM 0.00 0.0 M M M
12/27/2009 7:00 AM 0.00 0.0 M M M
12/28/2009 7:00 AM 0.00 0.0 M M M
12/29/2009 12:00 PM T M M M M Trough passage brought a few sprinkles to the guage around 1630 hrs.
12/30/2009 7:00 AM 0.00 0.0 M M M
12/31/2009 7:00 AM 0.00 0.0 M M M
1/1/2010 7:00 AM 0.00 0.0 M M M
1/2/2010 7:00 AM 0.00 0.0 M M M
1/3/2010 7:00 AM 0.00 0.0 M M M
1/4/2010 7:00 AM 0.00 0.0 M M M
1/5/2010 7:00 AM 0.00 0.0 M M M
1/6/2010 7:00 AM 0.00 0.0 M M M
1/7/2010 7:00 AM 0.00 0.0 M M M
1/8/2010 7:00 AM 0.00 0.0 M M M
1/9/2010 7:00 AM 0.00 0.0 M M M
1/10/2010 7:00 AM 0.00 0.0 M M M
1/11/2010 7:00 AM 0.00 0.0 M M M
1/12/2010 7:00 AM 0.00 0.0 M M M
1/13/2010 7:00 AM 0.00 0.0 M M M
1/14/2010 12:00 PM T M M M M A weak upper level low and trough passage brought a few RW- to the area by 1645 hrs.
1/15/2010 7:00 AM 0.00 0.0 M M M
1/16/2010 7:00 AM 0.00 0.0 M M M
1/17/2010 7:00 AM 0.00 0.0 M M M
1/18/2010 7:00 AM 0.00 0.0 M M M
1/19/2010 12:00 PM 0.06 M M M M A weak frontal passage brought RW to the area between 0940 and 1015 hrs.
1/20/2010 12:00 PM 0.55 M M M M A developing large scale trough over the western U.S. with embedded short waves resulted in pre-dawn (0200 hrs)RW+ followed by RW- during tthe afternoon hours.
1/21/2010 12:00 PM 0.74 M M M M A developing large scale trough over the western U.S. with embedded short waves resulted in late night RW+ as a front approached.
1/22/2010 12:00 PM 2.38 5.0 M 5.0 M An intense trough and frontal passage brought periods of heavy rain all day long accompanied by a few snow flakes during the late morning. As temperatures fell during the late evening the onset of snow began around 2200 hrs with 1/2" of accumulation by midnight.
1/23/2010 12:00 PM 0.39 3.0 0.39 3.5 M NWS WINTER STORM WARNING. Snow fell thru the pre-dawn period with ~3" of accumulation before the event ended. Liquid equivalent was 0.39".
1/24/2010 7:00 AM 0.00 0.0 M M M
1/25/2010 7:00 AM 0.00 0.0 M M M
1/26/2010 7:00 AM 0.00 0.0 M M M
1/27/2010 12:00 PM 0.20 M M M M The arrival of an upper level low and major short wave trough produced RW/RW- from 1830-2400 hrs.
1/28/2010 12:00 PM T M M M M A trough moving overhead brought a few sprinkles on station after the noon hour.
2/1/2010 7:00 AM 0.00 0.0 M M M
2/2/2010 12:00 PM T M M M M Increasing clouds associated with the approach of an upper level trough produced a few raindrops beginning at 1637 hrs.
2/3/2010 12:00 PM 0.58 M M M M Upper level trough passage produced a few RW- after midnight followed by a lengthy period of cold rain during the day that lasted until 1600 hrs.
2/4/2010 7:00 AM 0.00 0.0 M M M
2/5/2010 7:00 AM 0.00 0.0 M M M
2/6/2010 7:00 AM 0.00 0.0 M M M
2/7/2010 12:00 PM 0.22 M M M M Upper level trough and surface cold frontal passage brought periods of cold rain from 0610-1500 hrs.
2/8/2010 7:00 AM 0.00 0.0 M M M
2/9/2010 7:00 AM 0.00 0.0 M M M
2/10/2010 12:00 PM 0.21 0.0 0.00 0.0 0.00 Cold upper low and trough passage brought a mixture of rain and snow on-station; the former began at 1015 hrs and the latter began at 1440 hrs with no accumulation thru midnight.
2/11/2010 10:00 AM 0.10 1.0 0.10 T M After midnight on the 10th but before dawn on the 11th an inch of powdery snow fell on-station; its liquid equivalent was 0.10" and it melted rapidly by mid-morning.
2/12/2010 7:00 AM 0.00 0.0 M M M
2/13/2010 7:00 AM 0.00 0.0 M M M
2/14/2010 7:00 AM 0.00 0.0 M M M
2/15/2010 7:00 AM 0.00 0.0 M M M
2/16/2010 7:00 AM 0.00 0.0 M M M
2/17/2010 7:00 AM 0.00 0.0 M M M
2/18/2010 7:00 AM 0.00 0.0 M M M
2/19/2010 7:00 AM 0.00 0.0 M M M
2/20/2010 12:00 PM 0.39 M M M M A fast-moving trough and frontal passage brought widespread precip to the area this date; the onset of a cold rain began at 1057 hrs on-station as well as a few ice pellets at 1308 hrs.
2/21/2010 7:00 AM 0.00 0.0 M M M
2/22/2010 12:00 PM 0.16 M M M M Yet another cold trough and frontal passage brought occasional showers to the area that began around 0900 hrs and lasted until about 1900 hrs. A few flakes of snow were seen at 1810 hrs.
2/23/2010 7:00 AM 0.00 0.0 M M M
2/24/2010 7:00 AM 0.00 0.0 M M M
2/25/2010 7:00 AM 0.00 0.0 M M M
2/26/2010 7:00 AM 0.00 0.0 M M M
2/27/2010 7:00 AM 0.00 0.0 M M M
2/28/2010 12:00 PM 0.33 T M 0.0 M Another cold trough and frontal passage brought RW, thunder, and then snow to the station all before 0400 hrs. Periods of rain continued until 1900 hrs along with light snow/flurries at times during the a.m. period.
3/1/2010 7:00 AM 0.00 0.0 M M M
3/2/2010 7:00 AM 0.00 0.0 M M M
3/3/2010 7:00 AM 0.00 0.0 M M M
3/4/2010 7:00 AM 0.00 0.0 M M M
3/5/2010 7:00 AM 0.00 0.0 M M M
3/6/2010 12:00 PM 0.03 M M M M Moist and unstable air on southerly flow aloft ahead of an approaching trough resulted in occasional RW- on station that began after the noon hour and lasted until before midnight.
3/7/2010 7:00 AM 0.00 0.0 M M M
3/8/2010 12:00 PM 0.19 M M M M Another in a seemingly unending series of trough passages that occurred during the pre-dawn hours brought several hours of steady rain followed by occasional showers most of the day. A few snow flakes were also seen during the late afternoon.
3/9/2010 12:00 PM 0.04 M M M M And another trough and frontal passage during the early evening hours brought a brief period of RW-that began around 1810 hrs.
3/10/2010 7:00 AM 0.00 0.0 M M M
3/11/2010 12:00 PM 0.02 0.5 0.02 M M A cold trough passage brought a period of snow on-station during the pre-dawn hours that left 1/2" on the ground; its liquid equivalent was only 0.02".
3/12/2010 7:00 AM 0.00 0.0 M M M
3/13/2010 7:00 AM 0.00 0.0 M M M
3/14/2010 7:00 AM 0.00 0.0 M M M
3/15/2010 7:00 AM 0.00 0.0 M M M
3/16/2010 7:00 AM 0.00 0.0 M M M
3/17/2010 7:00 AM 0.00 0.0 M M M
3/18/2010 7:00 AM 0.00 0.0 M M M
3/19/2010 7:00 AM 0.00 0.0 M M M
3/20/2010 7:00 AM 0.00 0.0 M M M
3/21/2010 7:00 AM 0.00 0.0 M M M
3/22/2010 7:00 AM 0.00 0.0 M M M
3/23/2010 12:00 PM 0.04 M M M M Yet another trough passage produced occasional RW- both a.m. & p.m. along with a T-storm at 1800 hrs.
3/24/2010 7:00 AM 0.00 0.0 M M M
3/25/2010 7:00 AM 0.00 0.0 M M M
3/26/2010 7:00 AM 0.00 0.0 M M M
3/27/2010 7:00 AM 0.00 0.0 M M M
3/28/2010 7:00 AM 0.00 0.0 M M M
3/29/2010 7:00 AM 0.00 0.0 M M M
3/30/2010 7:00 AM 0.00 0.0 M M M
3/31/2010 7:00 AM 0.00 0.0 M M M
4/1/2010 12:00 PM 0.06 M M M M A trough and frontal passage brought occasional RW- between 1610 and 2000 hrs.
4/2/2010 7:00 AM 0.00 0.0 M M M
4/3/2010 7:00 AM 0.00 0.0 M M M
4/4/2010 7:00 AM 0.00 0.0 M M M
4/5/2010 7:00 AM 0.00 0.0 M M M
4/6/2010 7:00 AM 0.00 0.0 M M M
4/7/2010 7:00 AM 0.00 0.0 M M M
4/8/2010 7:00 AM 0.00 0.0 M M M
4/9/2010 7:00 AM 0.00 0.0 M M M
4/10/2010 7:00 AM 0.00 0.0 M M M
4/11/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 7:00 AM 0.00 0.0 M M M
4/13/2010 7:00 AM 0.00 0.0 M M M
4/14/2010 7:00 AM 0.00 0.0 M M M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:00 AM 0.00 0.0 M M M
4/17/2010 7:00 AM 0.00 0.0 M M M
4/18/2010 7:00 AM 0.00 0.0 M M M
4/19/2010 12:00 PM T M M M M A weak trough passage was accompanied by a few RW- that began at 0915 hrs.
4/20/2010 7:00 AM 0.00 0.0 M M M
4/21/2010 12:00 PM T M M M M The approach of yet another trough brought occasional RW- during the p.m. period.
4/22/2010 12:00 PM 0.19 0.0 T 0.0 M The approach of a very large and cold cyclone produced local RW by 1335 hrs and a trace of snow at 1405 hrs.
4/23/2010 12:00 PM 0.65 2.5 0.45 0.0 M A strong and very cold cyclone for April produced RW- by 0200 hrs followed by snow that was heavy at times from 0300 to 1000 hrs. Total snow drop was 2 1/2" that had all melted by noon after the sun came out.
4/24/2010 7:00 AM 0.00 0.0 M M M
4/25/2010 7:00 AM 0.00 0.0 M M M
4/26/2010 7:00 AM 0.00 0.0 M M M
4/27/2010 7:00 AM 0.00 0.0 M M M
4/28/2010 7:00 AM 0.00 0.0 M M M
4/29/2010 7:00 AM 0.00 0.0 M M M
4/30/2010 12:00 PM T M M M M A weak trough passage produced a few RW- during the afternoon hours.
5/1/2010 7:00 AM 0.00 0.0 M M M
5/2/2010 12:00 PM T M M M M Another in a freak series of late season trough passages produced a few RW- on station during the afternoon hours.
5/3/2010 7:00 AM 0.00 0.0 M M M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM 0.00 0.0 M M M
5/6/2010 7:00 AM 0.00 0.0 M M M
5/7/2010 7:00 AM 0.00 0.0 M M M
5/8/2010 7:00 AM 0.00 0.0 M M M
5/9/2010 7:00 AM 0.00 0.0 M M M
5/10/2010 7:00 AM 0.00 0.0 M M M
5/11/2010 7:00 AM 0.00 0.0 M M M
5/12/2010 7:00 AM 0.00 0.0 M M M
5/13/2010 7:00 AM 0.00 0.0 M M M
5/14/2010 7:00 AM 0.00 0.0 M M M
5/15/2010 7:00 AM 0.00 0.0 M M M
5/16/2010 7:00 AM 0.00 0.0 M M M
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM 0.00 0.0 M M M
5/19/2010 7:00 AM 0.00 0.0 M M M
5/20/2010 7:00 AM 0.00 0.0 M M M
5/21/2010 7:00 AM 0.00 0.0 M M M
5/22/2010 7:00 AM 0.00 0.0 M M M
5/23/2010 7:00 AM 0.00 0.0 M M M
5/24/2010 7:00 AM 0.00 0.0 M M M
5/25/2010 7:00 AM 0.00 0.0 M M M
5/26/2010 7:00 AM 0.00 0.0 M M M
5/27/2010 7:00 AM 0.00 0.0 M M M
5/28/2010 7:00 AM 0.00 0.0 M M M
5/29/2010 7:00 AM 0.00 0.0 M M M
5/30/2010 7:00 AM 0.00 0.0 M M M
5/31/2010 7:00 AM 0.00 0.0 M M M
6/1/2010 7:00 AM 0.00 0.0 M M M
6/2/2010 7:00 AM 0.00 0.0 M M M
6/3/2010 7:00 AM 0.00 0.0 M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM 0.00 0.0 M M M
6/6/2010 7:00 AM 0.00 0.0 M M M
6/7/2010 7:00 AM 0.00 0.0 M M M
6/8/2010 7:00 AM 0.00 0.0 M M M
6/9/2010 7:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.00 0.0 M M M
6/11/2010 7:00 AM 0.00 0.0 M M M
6/12/2010 7:00 AM 0.00 0.0 M M M
6/13/2010 7:00 AM 0.00 0.0 M M M
6/14/2010 7:00 AM 0.00 0.0 M M M
6/15/2010 7:00 AM 0.00 0.0 M M M
6/16/2010 7:00 AM 0.00 0.0 M M M
6/17/2010 7:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 7:00 AM 0.00 0.0 M M M
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 7:00 AM 0.00 0.0 M M M
6/22/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 0.00 0.0 M M M
6/24/2010 7:00 AM 0.00 0.0 M M M
6/25/2010 12:00 PM T M M M M Weak summer monsoon conditions brought a few RW- to the area during the afternoon hours.
6/26/2010 7:00 AM 0.00 0.0 M M M
6/27/2010 7:00 AM 0.00 0.0 M M M
6/28/2010 12:00 PM T M M M M Weak summer monsoon conditions brought a few RW- to the area during the afternoon hours.
6/29/2010 12:00 PM T M M M M Weak summer monsoon conditions brought a few TRW- to the area during the afternoon hours.
6/30/2010 12:00 PM T M M M M Weak summer monsoon conditions brought a few TRW- to the area during the afternoon hours.
7/1/2010 12:00 PM 0.42 M M M M Ramp-up in summer monsoon moisture resulted in TRW+ on station that began at 1430 hrs and lasted 30 minutes.
7/2/2010 7:00 AM 0.00 0.0 M M M
7/3/2010 7:00 AM 0.00 0.0 M M M
7/4/2010 7:00 AM 0.00 0.0 M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1712 hrs.
7/7/2010 7:00 AM 0.00 0.0 M M M
7/8/2010 7:00 AM 0.00 0.0 M M M
7/9/2010 7:00 AM 0.00 0.0 M M M
7/10/2010 12:00 PM 0.16 M M M M Monsoon thunderstorms accompanied RW that began at 1405 hrs.
7/11/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1354 hrs.
7/12/2010 7:00 AM 0.00 0.0 M M M
7/13/2010 12:00 PM 0.03 M M M M Monsoon thunderstorms accompanied RW- that began at 1452 hrs.
7/14/2010 12:00 PM 0.10 M M M M Monsoon thunderstorms accompanied RW that began at 1300 hrs.
7/15/2010 12:00 PM 0.08 M M M M Monsoon thunderstorms accompanied RW that began at 1530 hrs.
7/16/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1955 hrs.
7/17/2010 12:00 PM 0.42 M M M M Monsoon thunderstorms accompanied RW+ that began at 1505 hrs.
7/18/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1525 hrs.
7/19/2010 12:00 PM 0.07 M M M M Monsoon thunderstorms accompanied RW that began at 2040 hrs.
7/20/2010 7:00 AM 0.00 0.0 M M M
7/21/2010 12:00 PM 0.04 M M M M Monsoon thunderstorms accompanied RW- that began at 1445 hrs.
7/22/2010 12:00 PM 0.11 M M M M Monsoon thunderstorms that were in the vicinity but not on-station accompanied RW- that began at 1445 hrs.
7/23/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1525 hrs.
7/24/2010 7:00 AM 0.00 0.0 M M M
7/25/2010 12:00 PM T M M M M Monsoon thunderstorms accompanied RW- that began at 1855 hrs.
7/26/2010 12:00 PM 0.12 M M M M RW- that began at 0530 hrs was augmented by RW during the p.m. that was accompanied by thunderstorms.
7/27/2010 12:00 PM 1.14 M M M M A large outbreak of monsoon thunderstorms and very heavy rain occurred this day with on-station precip beginning at 1220 hrs. 0.89" fell between 1240 and 1310 hrs and a Funnel Cloud NE of Sonoita was videotaped by a local resident between 1230 and 1300 hrs.
7/28/2010 12:00 PM 0.12 M M M M RW that accompanied monsoon thunderstorm activity began at 1030 hrs.
7/29/2010 12:00 PM 0.75 M M M M RW- during the morning hours was followed by RW+ during the nightime hours beginning at 2030 hrs. Monsoon thunderstorms also occurred during the day.
7/30/2010 12:00 PM 1.13 M M M M Occasional RW+ along with monsoon thunderstorms occurred this day with heaviest precip beginning at 1630 hrs.
7/31/2010 12:00 PM 0.05 M M M M RW- along with a few monsoon thunderstorms began at 1100 hrs.
8/1/2010 7:00 AM 0.00 0.0 M M M
8/2/2010 7:00 AM 0.00 0.0 M M M
8/3/2010 7:00 AM 0.00 0.0 M M M
8/4/2010 7:00 AM 0.00 0.0 M M M
8/5/2010 7:00 AM 0.00 0.0 M M M
8/6/2010 12:00 PM 0.07 M M M M RW- were accompanied by monsoon thunderstorm activity this day.
8/7/2010 12:00 PM 0.04 M M M M RW- were accompanied by monsoon thunderstorm activity this day.
8/8/2010 7:00 AM 0.00 0.0 M M M
8/9/2010 7:00 AM 0.00 0.0 M M M
8/10/2010 7:00 AM 0.00 0.0 M M M
8/11/2010 12:00 PM 0.28 M M M M Monsoon thunderstorms brought RW+ during the afternoon hours.
8/12/2010 7:00 AM 0.00 0.0 M M M
8/13/2010 7:00 AM 0.00 0.0 M M M
8/14/2010 12:00 PM 0.09 M M M M Monsoon thunderstorms brought RW- during the late evening hours.
8/15/2010 12:00 PM 0.52 M M M M Large outbreak of monsoon thunderstorms eventually resulted in the development of an MCS over this part of AZ during the evening and nighttime hours. Heavy downpours were accompanied by continuous cloud to ground lightning and wind gusts as high as 36 mph.
8/16/2010 12:00 PM 0.94 M M M M Large outbreak of monsoon thunderstorms resulted in the development of an MCS over this part of AZ after midnight and thru the pre-dawn hours. Heavy downpours were accompanied by continuous cloud to ground lightning. TRW+ then resumed by late afternoon and into the evening hours.
8/17/2010 7:00 AM 0.00 0.0 M M M
8/18/2010 7:00 AM 0.00 0.0 M M M
8/19/2010 7:00 AM 0.00 0.0 M M M
8/20/2010 7:00 AM 0.00 0.0 M M M
8/21/2010 12:00 PM T M M M M RW- were accompanied by monsoon thunderstorms during the afternoon hours.
8/22/2010 12:00 PM T M M M M RW- were accompanied by monsoon thunderstorms during the early evening hours.
8/23/2010 7:00 AM 0.00 0.0 M M M
8/24/2010 12:00 PM 0.47 M M M M RW+ were accompanied by monsoon thunderstorms during the late afternoon hours.
8/25/2010 12:00 PM T M M M M RW- were accompanied by monsoon thunderstorms during early nighttime hours.
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 12:00 PM 0.22 M M M M RW were accompanied by monsoon thunderstorms during the a.m. and p.m. periods.
8/28/2010 7:00 AM 0.00 0.0 M M M
8/29/2010 12:00 PM 0.06 M M M M RW- were accompanied by monsoon thunderstorms during the early afternoon hours.
8/30/2010 7:00 AM 0.00 0.0 M M M
8/31/2010 7:00 AM 0.00 0.0 M M M
9/1/2010 7:00 AM 0.00 0.0 M M M
9/2/2010 7:00 AM 0.00 0.0 M M M
9/3/2010 12:00 PM T M M M M RW- that began during the late afternoon was accompanied by monsoon thunderstorms.
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 12:00 PM 1.04 M M M M Labor Day was blessed by an intense thunderstorm with very heavy rain that began at 1205 hrs. 1.04" of rain fell in only 35 minutes and was accompanied by winds that gusted to 47 mph.
9/7/2010 12:00 PM 0.01 0.0 M M M RW- that began during the early evening hours was preceded by afternoon monsoon thunderstorms with very heavy rain nearby but not on station.
9/8/2010 12:00 PM 0.00 0.0 M M M
9/9/2010 7:00 AM 0.00 0.0 M M M
9/10/2010 7:00 AM 0.00 0.0 M M M
9/11/2010 7:00 AM 0.00 0.0 M M M
9/12/2010 12:00 PM T M M M M RW- occurred at times beginning during the mid-afternoon.
9/13/2010 7:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 7:00 AM 0.00 0.0 M M M
9/16/2010 7:00 AM 0.00 0.0 M M M
9/17/2010 7:00 AM 0.00 0.0 M M M
9/18/2010 7:00 AM 0.00 0.0 M M M
9/19/2010 7:00 AM 0.00 0.0 M M M
9/20/2010 12:00 PM 0.01 M M M M RW- were accompanied by monsoon T-storms during the afternoon hours.
9/21/2010 12:00 PM 0.39 M M M M Showers that were heavy at times were accompanied by T-storms as tropical moisture increased ahead of an approaching trough.
9/22/2010 12:00 PM 0.52 M M M M Occasional showers -- heavy at times -- occurred all day with a trough passage.
9/23/2010 7:00 AM 0.00 0.0 M M M
9/24/2010 7:00 AM 0.00 0.0 M M M
9/25/2010 7:00 AM 0.00 0.0 M M M
9/26/2010 7:00 AM 0.00 0.0 M M M
9/27/2010 7:00 AM 0.00 0.0 M M M
9/28/2010 7:00 AM 0.00 0.0 M M M
9/29/2010 7:00 AM 0.00 0.0 M M M
9/30/2010 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes



Observation Date Observation Time Notes Largest Stone Size Average Stone Size Smallest Stone Size Stone Consistency Duration Minutes Durration Accuracy Damage Timing More Rain than Hail Hail Started Largest Hail Started Angle of Impact Number of Stones on Pad Distance Between Stones on Pad Depth of Stones on Ground