Station Overview Station Location
Station Number AZ-PM-231 Latitude 32.489208
Station Name Catalina 2.5 ESE Longitude -110.884141
County Pima Elevation (ft) 3348



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 19 1.17 0.00 31 0.00 31 0.00 0 0 0 0 0.0 0 0
Nov 19 0.83 3.69 30 3.69 30 0.00 0 0 6 2 0.0 0 0
Dec 19 1.29 3.08 31 3.08 31 0.00 0 0 8 3 0.0 0 0
Jan 20 1.29 0.92 31 0.92 31 0.00 0 0 4 3 0.0 0 0
Feb 20 1.18 1.15 29 1.15 29 0.00 0 0 5 1 0.0 0 0
March 20 1.14 1.46 31 1.46 31 0.00 0 0 8 4 0.0 0 0
April 20 0.40 0.00 30 0.00 30 0.00 0 0 0 1 0.0 0 0
May 20 0.25 0.00 31 0.00 31 0.00 0 0 0 2 0.0 0 0
June 20 0.30 0.03 30 0.03 30 0.00 0 0 1 2 0.0 0 0
July 20 2.10 0.56 30 0.56 30 0.00 0 0 5 7 0.0 0 0
Aug 20 2.92 2.30 30 2.30 30 0.00 0 0 5 4 0.0 0 0
Sept 20 1.40 0.00 30 0.00 30 0.00 0 0 0 1 0.0 0 0
Water Year Totals: 14.27" 13.19" 364 days 13.19" 364 0.00" 0 days 0 42 days 30 days 0.0" 0 days 0 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
10/1/2019 0.00
10/2/2019 0.00
10/3/2019 0.00
10/4/2019 0.00
10/5/2019 0.00
10/6/2019 0.00
10/7/2019 0.00
10/8/2019 0.00
10/9/2019 0.00
10/10/2019 0.00
10/11/2019 0.00
10/12/2019 0.00
10/13/2019 0.00
10/14/2019 0.00
10/15/2019 0.00
10/16/2019 0.00
10/17/2019 0.00
10/18/2019 0.00
10/19/2019 0.00
10/20/2019 0.00
10/21/2019 0.00
10/22/2019 0.00
10/23/2019 0.00
10/24/2019 0.00
10/25/2019 0.00
10/26/2019 0.00
10/27/2019 0.00
10/28/2019 0.00
10/29/2019 0.00
10/30/2019 0.00
10/31/2019 0.00
11/1/2019 0.00
11/2/2019 0.00
11/3/2019 0.00
11/4/2019 0.00
11/5/2019 0.00
11/6/2019 T
11/7/2019 T
11/8/2019 0.00
11/9/2019 0.00
11/10/2019 0.00
11/11/2019 0.00
11/12/2019 0.00
11/13/2019 0.00
11/14/2019 0.00
11/15/2019 0.00
11/16/2019 0.00
11/17/2019 0.00
11/18/2019 0.00
11/19/2019 0.00
11/20/2019 0.52
11/21/2019 1.76
11/22/2019 0.19
11/23/2019 0.00
11/24/2019 0.00
11/25/2019 0.00
11/26/2019 0.00
11/27/2019 0.00
11/28/2019 0.04
11/29/2019 0.32
11/30/2019 0.86
12/1/2019 0.00
12/2/2019 0.00
12/3/2019 0.00
12/4/2019 T
12/5/2019 T
12/6/2019 0.00
12/7/2019 0.00
12/8/2019 0.02
12/9/2019 0.96
12/10/2019 0.21
12/11/2019 0.00
12/12/2019 0.00
12/13/2019 0.00
12/14/2019 0.00
12/15/2019 0.00
12/16/2019 0.00
12/17/2019 0.00
12/18/2019 0.00
12/19/2019 0.00
12/20/2019 0.00
12/21/2019 0.00
12/22/2019 0.00
12/23/2019 0.00
12/24/2019 T
12/25/2019 0.78
12/26/2019 0.04
12/27/2019 0.65
12/28/2019 0.38
12/29/2019 0.04
12/30/2019 0.00
12/31/2019 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2020 0.00
1/2/2020 T
1/3/2020 0.00
1/4/2020 0.00
1/5/2020 0.00
1/6/2020 0.00
1/7/2020 0.00
1/8/2020 0.00
1/9/2020 0.00
1/10/2020 0.15
1/11/2020 0.00
1/12/2020 0.00
1/13/2020 0.00
1/14/2020 0.00
1/15/2020 0.00
1/16/2020 0.00
1/17/2020 0.21
1/18/2020 0.00
1/19/2020 0.00
1/20/2020 0.00
1/21/2020 0.18
1/22/2020 0.38
1/23/2020 0.00
1/24/2020 0.00
1/25/2020 0.00
1/26/2020 0.00
1/27/2020 T
1/28/2020 T
1/29/2020 0.00
1/30/2020 0.00
1/31/2020 0.00
2/1/2020 0.00
2/2/2020 0.00
2/3/2020 0.00
2/4/2020 T
2/5/2020 0.00
2/6/2020 0.00
2/7/2020 0.00
2/8/2020 0.00
2/9/2020 0.00
2/10/2020 0.01
2/11/2020 0.52
2/12/2020 0.26
2/13/2020 0.00
2/14/2020 0.00
2/15/2020 0.00
2/16/2020 0.00
2/17/2020 0.00
2/18/2020 0.00
2/19/2020 0.00
2/20/2020 0.00
2/21/2020 0.00
2/22/2020 0.29
2/23/2020 0.07
2/24/2020 0.00
2/25/2020 0.00
2/26/2020 0.00
2/27/2020 0.00
2/28/2020 0.00
2/29/2020 0.00
3/1/2020 0.00
3/2/2020 0.00
3/3/2020 0.08
3/4/2020 0.00
3/5/2020 0.00
3/6/2020 0.00
3/7/2020 0.00
3/8/2020 T
3/9/2020 T
3/10/2020 T
3/11/2020 0.07
3/12/2020 0.08
3/13/2020 0.31
3/14/2020 0.04
3/15/2020 0.00
3/16/2020 0.00
3/17/2020 0.00
3/18/2020 0.00
3/19/2020 0.83
3/20/2020 0.03
3/21/2020 0.00
3/22/2020 0.00
3/23/2020 0.00
3/24/2020 0.00
3/25/2020 0.00
3/26/2020 0.00
3/27/2020 T
3/28/2020 0.02
3/29/2020 0.00
3/30/2020 0.00
3/31/2020 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2020 0.00
4/2/2020 0.00
4/3/2020 0.00
4/4/2020 0.00
4/5/2020 0.00
4/6/2020 0.00
4/7/2020 0.00
4/8/2020 0.00
4/9/2020 0.00
4/10/2020 0.00
4/11/2020 0.00
4/12/2020 T
4/13/2020 0.00
4/14/2020 0.00
4/15/2020 0.00
4/16/2020 0.00
4/17/2020 0.00
4/18/2020 0.00
4/19/2020 0.00
4/20/2020 0.00
4/21/2020 0.00
4/22/2020 0.00
4/23/2020 0.00
4/24/2020 0.00
4/25/2020 0.00
4/26/2020 0.00
4/27/2020 0.00
4/28/2020 0.00
4/29/2020 0.00
4/30/2020 0.00
5/1/2020 0.00
5/2/2020 0.00
5/3/2020 0.00
5/4/2020 0.00
5/5/2020 0.00
5/6/2020 0.00
5/7/2020 0.00
5/8/2020 0.00
5/9/2020 0.00
5/10/2020 0.00
5/11/2020 T
5/12/2020 0.00
5/13/2020 0.00
5/14/2020 0.00
5/15/2020 0.00
5/16/2020 0.00
5/17/2020 0.00
5/18/2020 0.00
5/19/2020 0.00
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.00
5/24/2020 0.00
5/25/2020 0.00
5/26/2020 0.00
5/27/2020 0.00
5/28/2020 0.00
5/29/2020 0.00
5/30/2020 T
5/31/2020 0.00
6/1/2020 0.00
6/2/2020 T
6/3/2020 0.00
6/4/2020 0.00
6/5/2020 0.00
6/6/2020 0.03
6/7/2020 0.00
6/8/2020 0.00
6/9/2020 0.00
6/10/2020 0.00
6/11/2020 0.00
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.00
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 0.00
6/18/2020 0.00
6/19/2020 0.00
6/20/2020 0.00
6/21/2020 0.00
6/22/2020 0.00
6/23/2020 0.00
6/24/2020 0.00
6/25/2020 0.00
6/26/2020 0.00
6/27/2020 0.00
6/28/2020 T
6/29/2020 0.00
6/30/2020 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.00
7/2/2020 T
7/3/2020 T
7/4/2020 0.00
7/5/2020 0.00
7/6/2020 0.00
7/7/2020 0.00
7/8/2020 0.00
7/9/2020 0.00
7/10/2020 0.00
7/11/2020 0.00
7/12/2020 0.20
7/13/2020 0.01
7/14/2020 T
7/15/2020 0.00
7/16/2020
7/17/2020 T
7/18/2020 0.00
7/19/2020 0.00
7/20/2020 T
7/21/2020 0.00
7/22/2020 T
7/23/2020 0.04
7/24/2020 0.13
7/25/2020 0.00
7/26/2020 0.00
7/27/2020 0.00
7/28/2020 T
7/29/2020 0.18
7/30/2020 0.00
7/31/2020 0.00
8/1/2020 T
8/2/2020 0.00
8/3/2020 0.00
8/4/2020 0.03
8/5/2020 0.00
8/6/2020 0.00
8/7/2020 0.00
8/8/2020 0.00
8/9/2020 0.00
8/10/2020 0.00
8/11/2020 0.00
8/12/2020 T
8/13/2020 0.00
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 1.14
8/18/2020 0.00
8/19/2020 0.00
8/20/2020 0.00
8/21/2020 0.04
8/22/2020 0.00
8/23/2020 T
8/24/2020 0.00
8/25/2020
8/26/2020 T
8/27/2020 0.00
8/28/2020 0.00
8/29/2020 0.00
8/30/2020 1.02
8/31/2020 0.07
9/1/2020 0.00
9/2/2020 0.00
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.00
9/7/2020 0.00
9/8/2020 0.00
9/9/2020 T
9/10/2020 0.00
9/11/2020 0.00
9/12/2020 0.00
9/13/2020 0.00
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.00
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.00
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.00
9/27/2020 0.00
9/28/2020 0.00
9/29/2020 0.00
9/30/2020 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2019 7:00 AM 0.00 0.0 M M M
10/2/2019 7:00 AM 0.00 0.0 M M M
10/3/2019 7:00 AM 0.00 0.0 M M M
10/4/2019 7:00 AM 0.00 0.0 M M M
10/5/2019 7:00 AM 0.00 0.0 M M M
10/6/2019 7:00 AM 0.00 0.0 M M M
10/7/2019 7:00 AM 0.00 0.0 M M M
10/8/2019 7:00 AM 0.00 0.0 M M M
10/9/2019 7:00 AM 0.00 0.0 M M M
10/10/2019 7:00 AM 0.00 0.0 M M M
10/11/2019 7:00 AM 0.00 0.0 M M M
10/12/2019 7:00 AM 0.00 0.0 M M M
10/13/2019 7:00 AM 0.00 0.0 M M M
10/14/2019 7:00 AM 0.00 0.0 M M M
10/15/2019 7:00 AM 0.00 0.0 M M M
10/16/2019 7:00 AM 0.00 0.0 M M M
10/17/2019 7:00 AM 0.00 0.0 M M M
10/18/2019 7:00 AM 0.00 0.0 M M M
10/19/2019 7:00 AM 0.00 0.0 M M M
10/20/2019 7:00 AM 0.00 0.0 M M M
10/21/2019 7:00 AM 0.00 0.0 M M M
10/22/2019 7:00 AM 0.00 0.0 M M M
10/23/2019 7:00 AM 0.00 0.0 M M M
10/24/2019 7:00 AM 0.00 0.0 M M M
10/25/2019 7:00 AM 0.00 0.0 M M M
10/26/2019 7:00 AM 0.00 0.0 M M M
10/27/2019 7:00 AM 0.00 0.0 M M M
10/28/2019 7:00 AM 0.00 0.0 M M M
10/29/2019 7:00 AM 0.00 0.0 M M M
10/30/2019 7:00 AM 0.00 0.0 M M M
10/31/2019 7:00 AM 0.00 0.0 M M M
11/1/2019 7:00 AM 0.00 0.0 M M M
11/2/2019 7:00 AM 0.00 0.0 M M M
11/3/2019 7:00 AM 0.00 0.0 M M M
11/4/2019 7:00 AM 0.00 0.0 M M M
11/5/2019 7:00 AM 0.00 0.0 M M M
11/6/2019 7:00 AM T M M M M TSTMS began after about 6:10 AM. Cores passed to E and W of station.
11/7/2019 7:00 AM T M M M M Close LTG strike 1010 AM. High-based TSTM cores missed, passed E and W of site.
11/8/2019 7:00 AM 0.00 0.0 M M M
11/9/2019 7:00 AM 0.00 0.0 M M M
11/10/2019 7:00 AM 0.00 0.0 M M M
11/11/2019 7:00 AM 0.00 0.0 M M M
11/12/2019 7:00 AM 0.00 0.0 M M M
11/13/2019 7:00 AM 0.00 0.0 M M M
11/14/2019 7:00 AM 0.00 0.0 M M M
11/15/2019 7:00 AM 0.00 0.0 M M M
11/16/2019 7:00 AM 0.00 0.0 M M M
11/17/2019 7:00 AM 0.00 0.0 M M M
11/18/2019 7:00 AM 0.00 0.0 M M M
11/19/2019 7:00 AM 0.00 0.0 M M M
11/20/2019 7:00 AM 0.52 M M M M Early afternoon TSTMS left 0.31 inches in NWS-style gauge. Evening rain band added the rest. 0.48 in NWS style gauge, 0.48 also indicated in Davis TB. 0.52 in CoCo gauge.
11/21/2019 7:00 AM 1.76 M M M M CoCo gauge. All but a few hundredths of the rain fell after 8:30 PM and continued most of night. OCNL TSTM. 1.63 in 8-inch NWS style gauge, likely less due to wind loss. Davis TB malfunctioned.
11/22/2019 7:00 AM 0.19 M M M M 0.17 in NWS tube 8-inch gauge, 0.12 inches indicated by Davis TB. Most of this total fell after dark.
11/23/2019 7:00 AM 0.00 0.0 M M M
11/24/2019 7:00 AM 0.00 0.0 M M M
11/25/2019 7:00 AM 0.00 0.0 M M M
11/26/2019 7:00 AM 0.00 0.0 M M M
11/27/2019 7:00 AM 0.00 0.0 M M M
11/28/2019 7:00 AM 0.04 M M M M 0.04 in NWS gauge, 0.03 inches indicated by Davis TB. Fell late, but before midnight.
11/29/2019 7:00 AM 0.32 M M M M Total from NWS 8-inch gauge; coco gauge was slanted due to wind and only had 0.29 inches. Davis TB indicated 0.30 inches. R at time of ob. Power flash greenish blue glow on ground SSW about 3-5 miles. Lasted a few seconds. No TSTM here so far.
11/30/2019 7:00 AM 0.86 M M M M Overnight: 0.07 inches in NWS 8-inch gauge, 0.07 indicated by Davis TB. Fell between 2 AM and 6 AM in brief RW- briefly RW. TUS sounding indicates cloud tops (at least over there at the U of AZ) were only -6° to -7°C, rather extraordinary.This was added to the 0.78 inches that fell during the day after the 7 AM ob yesterday.
12/1/2019 7:00 AM 0.00 0.0 M M M
12/2/2019 7:00 AM 0.00 0.0 M M M
12/3/2019 7:00 AM 0.00 0.0 M M M
12/4/2019 7:00 AM T M M M M A few drops around 5 AM.
12/5/2019 7:00 AM T M M M M A few drops between about 4:30 AM and 5 AM.
12/6/2019 7:00 AM 0.00 0.0 M M M
12/7/2019 7:00 AM 0.00 0.0 M M M
12/8/2019 7:00 AM 0.02 M M M M T in NWS replica 8-inch gauge, no measurable indicated by Davis TB. RW-- at time of ob.
12/9/2019 7:00 AM 0.96 M M M M Three periods of TSTMS beginning just after 11 PM AST; last 5:30 to 6 AM. Core of last chapter, missed us. 0.96 inches in CoCo gauge, 0.89 in NWS-replica 8 inch gauge, 0.97 inches indicated by Davis TB, though one spike in rain looked like an artifact.
12/10/2019 7:00 AM 0.21 M M M M 0.21 in CoCo gauge, 0.21 in NWS 8-inch gauge, 0.19 inches indicated by Davis TB. Rain fell between 9 am and 2 PM as mostly R- here.
12/11/2019 7:00 AM 0.00 0.0 M M M
12/12/2019 7:00 AM 0.00 0.0 M M M
12/13/2019 7:00 AM 0.00 0.0 M M M
12/14/2019 7:00 AM 0.00 0.0 M M M
12/15/2019 7:00 AM 0.00 0.0 M M M
12/16/2019 7:00 AM 0.00 0.0 M M M
12/17/2019 7:00 AM 0.00 0.0 M M M
12/18/2019 7:00 AM 0.00 0.0 M M M
12/19/2019 7:00 AM 0.00 0.0 M M M
12/20/2019 7:00 AM 0.00 0.0 M M M
12/21/2019 7:00 AM 0.00 0.0 M M M
12/22/2019 7:00 AM 0.00 0.0 M M M
12/23/2019 7:00 AM 0.00 0.0 M M M
12/24/2019 7:00 AM T M M M M A few drops before ob time.
12/25/2019 7:00 AM 0.78 M M M M 0.71 in NWS gauge, 0.68 indicated by Davis TB. Several periods of rain, 1st rainband was in morning, dumped 0.46 in CoCo gauge, overnight periods of R- added another 0.32 inches. RB just after ob time today.
12/26/2019 7:00 AM 0.04 M M M M 0.03 inches in NWS 8-inch gauge, 0.01 inches indicated by Davis TB. Intermittent brief RW- - and RW-. TSTM W-NW 12:50 PM, MVD NE.
12/27/2019 7:00 AM 0.65 M M M M Turned briefly to snow melting on contact as temperature dropped to 35/34°F around 3 AM. 0.65 in CoCo gauge, 0.64 inches in NWS 8-inch gauge. Davis TB had intermittent spurious spikes, precip uncertain.
12/28/2019 7:00 AM 0.38 M M M M 0.35 inches in NWS-style 8-inch gauge, 0.27 inches indicated by Davis TB (which is now about ten years old!) Fell in intermittent RW- over most of 24 h period. That's its falling from relatively shallow, warm-topped clouds during the nighttime hours makes it an interesting situation.
12/29/2019 7:00 AM 0.04 M M M M Came in AM RW- ; graupel observed. Davis TB 0.03 inches, rain in NWS gauge frozen, no reading until later in day.
12/30/2019 7:00 AM 0.00 0.0 M M M
12/31/2019 7:00 AM 0.00 0.0 M M M
1/1/2020 7:00 AM 0.00 0.0 M M M
1/2/2020 7:00 AM T 0.0 M M M A few liquid drops were found on several objects after original zero entry. Supported by radar.
1/3/2020 7:00 AM 0.00 0.0 M M M
1/4/2020 7:00 AM 0.00 0.0 M M M
1/5/2020 7:00 AM 0.00 0.0 M M M
1/6/2020 7:00 AM 0.00 0.0 M M M
1/7/2020 7:00 AM 0.00 0.0 M M M
1/8/2020 7:00 AM 0.00 0.0 M M M
1/9/2020 7:00 AM 0.00 0.0 M M M
1/10/2020 7:00 AM 0.15 M M M M Fell between 11 PM and 2 AM. 0.15 inches in CoCo gauge, 0.13 inches in NWS 8-inch gauge, and 0.11 indicated by Davis Vantage Pro tipping bucket (TB)
1/11/2020 7:00 AM 0.00 0.0 M M M
1/12/2020 7:00 AM 0.00 0.0 M M M
1/13/2020 7:00 AM 0.00 0.0 M M M
1/14/2020 7:00 AM 0.00 0.0 M M M
1/15/2020 7:00 AM 0.00 0.0 M M M
1/16/2020 7:00 AM 0.00 0.0 M M M
1/17/2020 7:00 AM 0.21 M M M M 0.21 in CoCo gauge, 0.19 inches in 8-inch NWS style gauge, 0.14 inches indicated by Davis TB. R--- to briefly R- from mid-level Nimbostratus without underlying clouds. Duration from about mid-day to 6 PM. Cement walkways not darkened in much of the early R---
1/18/2020 7:00 AM 0.00 0.0 M M M
1/19/2020 7:00 AM 0.00 0.0 M M M
1/20/2020 7:00 AM 0.00 0.0 M M M
1/21/2020 7:00 AM 0.18 M M M M All in the past two hours. R- at time of ob. Estimated 0.17 inches in NWS gauge, 0.14 indicated by Davis Vantage Pro TB.
1/22/2020 7:00 AM 0.38 M M M M R- during morning hours, drizzle to R-- episodes began during evening and overnight. 0.36 inches in NWS 8-inch gauge, 0.27 inches indicated by Davis TB.
1/23/2020 7:00 AM 0.00 0.0 M M M
1/24/2020 7:00 AM 0.00 0.0 M M M
1/25/2020 7:00 AM 0.00 0.0 M M M
1/26/2020 7:00 AM 0.00 0.0 M M M
1/27/2020 7:00 AM T M M M M SPKLS AT OB TIME AND JUST before.
1/28/2020 7:00 AM T M M M M Rained just the first couple of minutes after ob time yesterday.
1/29/2020 7:00 AM 0.00 0.0 M M M
1/30/2020 7:00 AM 0.00 0.0 M M M
1/31/2020 7:00 AM 0.00 0.0 M M M
2/1/2020 7:00 AM 0.00 0.0 M M M
2/2/2020 7:00 AM 0.00 0.0 M M M
2/3/2020 7:00 AM 0.00 0.0 M M M
2/4/2020 7:00 AM T M M M M A very few snowflakes observed falling after 3 AM. Supported by echo overhead. Had to use high beam flashlight pointed up to see'em.
2/5/2020 7:00 AM 0.00 0.0 M M M
2/6/2020 7:00 AM 0.00 0.0 M M M
2/7/2020 7:00 AM 0.00 0.0 M M M
2/8/2020 7:00 AM 0.00 0.0 M M M
2/9/2020 7:00 AM 0.00 0.0 M M M
2/10/2020 7:00 AM 0.01 M M M M Fell after 1 AM with winds gusting to 42 mph, measured by Davis Vantage Pro anemometer. No tip in bucket. 0.01 inches measured in both the CoCo gauge and in an 8-inch NWS style gauge.
2/11/2020 7:00 AM 0.52 M M M M 0,52 in CoCo gauge; 0.47 inches in NWS gauge, 0.44 indicated by Davis TB. Most of rain fell between 7 PM and 10 PM; only 0.08 indicated by TB before then.
2/12/2020 7:00 AM 0.26 M M M M 0.26 inches in CoCo gauge, 0.25 inches in NWS-8-inch gauge, 0.20 inches indicated by Davis TB. Mainly Stratocumulus clouds filled in by late morning and began to rain lightly, but rain gradually increased. Not really showery, more R- OCNLY R before it ended in late afternoon.
2/13/2020 7:00 AM 0.00 0.0 M M M
2/14/2020 7:00 AM 0.00 0.0 M M M
2/15/2020 7:00 AM 0.00 0.0 M M M
2/16/2020 7:00 AM 0.00 0.0 M M M
2/17/2020 7:00 AM 0.00 0.0 M M M
2/18/2020 7:00 AM 0.00 0.0 M M M
2/19/2020 7:00 AM 0.00 0.0 M M M
2/20/2020 7:00 AM 0.00 0.0 M M M
2/21/2020 7:00 AM 0.00 0.0 M M M
2/22/2020 7:00 AM 0.29 M M M M 0.36 storm total apportioned as fell according to nearby neighborhood gauge with 0.35 inches. 0.36 inches in NWS gauge and in CoCo gauge.
2/23/2020 7:00 AM 0.07 0.0 M M M 0.36 storm total apportioned as fell according to nearby neighborhood gauge with 0.35 inches. 0.36 inches in NWS gauge and in CoCo gauge.
2/24/2020 7:00 AM 0.00 0.0 M M M
2/25/2020 7:00 AM 0.00 0.0 M M M
2/26/2020 7:00 AM 0.00 0.0 M M M
2/27/2020 7:00 AM 0.00 0.0 M M M
2/28/2020 7:00 AM 0.00 0.0 M M M
2/29/2020 7:00 AM 0.00 0.0 M M M
3/1/2020 7:00 AM 0.00 0.0 M M M
3/2/2020 7:00 AM 0.00 0.0 M M M
3/3/2020 7:00 AM 0.08 M M M M 0.08 in both CoCo and NWS replica gauge. 0.06 inches indicated by Davis TB. Rain fell in the 2h before ob time. Tracing at ob time.
3/4/2020 7:00 AM 0.00 0.0 M M M
3/5/2020 7:00 AM 0.00 0.0 M M M
3/6/2020 7:00 AM 0.00 0.0 M M M
3/7/2020 7:00 AM 0.00 0.0 M M M
3/8/2020 7:00 AM T M M M M Three small drops on top of recycle bin lid after virga passed over.
3/9/2020 7:00 AM T M M M M Off and on SPKLS through 2 PM.
3/10/2020 7:00 AM T M M M M A few sparse drops at 6:50 AM.
3/11/2020 7:00 AM 0.07 M M M M late evening fall. 0.07 inches in CoCo gauge, 0.06 inches in NWS-8 inch gauge, 0nly 0.03 inches in Davis Vantage Pro TB.
3/12/2020 7:00 AM 0.08 M M M M 0.08 in both CoCo and NWS 8-inch gauge; 0.06 inches indicated by Davis TB. Very brief hard shower at about 3:15 AM responsible for these totals.
3/13/2020 7:00 AM 0.31 M M M M 0.31 in CoCo gauge, 0.29 inches in NWS- 8-inch gauge, 0.25 inches indicated by Davis TB. Fell between 2 AM and 4 AM AST.
3/14/2020 7:00 AM 0.04 M M M M 0.04 in CoCo gauge, 0.03 in NWS-8-inch gauge, 0.02 inches indicated by Davis TB. SVRL SPKLS during the day before an AFTN CB rolled over head dropping said amounts about 3:45 PM AST.
3/15/2020 7:00 AM 0.00 0.0 M M M
3/16/2020 7:00 AM 0.00 0.0 M M M
3/17/2020 7:00 AM 0.00 0.0 M M M
3/18/2020 7:00 AM 0.00 0.0 M M M
3/19/2020 7:00 AM 0.83 M M M M 0.83 in CoCo gauge, 0.81 inches in NWS style gauge, 0.65 indicated by Davis TB. Rain fell after 3 PM in two main bands. 0.01 inches after 4 AM.
3/20/2020 7:00 AM 0.03 M M M M Fell as light showers right after ob time. 0.03 inches in CoCo gauge, 0.02 inches in NWS 8-inch gauge, 0.01 inches indicated by Davis TB.
3/21/2020 7:00 AM 0.00 0.0 M M M
3/22/2020 7:00 AM 0.00 0.0 M M M
3/23/2020 7:00 AM 0.00 0.0 M M M
3/24/2020 7:00 AM 0.00 0.0 M M M
3/25/2020 7:00 AM 0.00 0.0 M M M
3/26/2020 7:00 AM 0.00 0.0 M M M
3/27/2020 7:00 AM T M M M M Isolated small drops between 11AM and 11:15 AM as heavy virga line in Altostratus passed to the E.
3/28/2020 7:00 AM 0.02 M M M M 0.02 in CoCo gauge, 0.01 in NWS-style gauge, 0.01 indicated by Davis TB. Fell as very light showers as two weak rainbands passed in the morning hours, and then as very brief RW- - from well-glaciated moderate Cu in AFTN hours.
3/29/2020 7:00 AM 0.00 0.0 M M M
3/30/2020 7:00 AM 0.00 0.0 M M M
3/31/2020 7:00 AM 0.00 0.0 M M M
4/1/2020 7:00 AM 0.00 0.0 M M M
4/2/2020 7:00 AM 0.00 0.0 M M M
4/3/2020 7:00 AM 0.00 0.0 M M M
4/4/2020 7:00 AM 0.00 0.0 M M M
4/5/2020 7:00 AM 0.00 0.0 M M M
4/6/2020 7:00 AM 0.00 0.0 M M M
4/7/2020 7:00 AM 0.00 0.0 M M M
4/8/2020 7:00 AM 0.00 0.0 M M M
4/9/2020 7:00 AM 0.00 0.0 M M M
4/10/2020 7:00 AM 0.00 0.0 M M M
4/11/2020 7:00 AM 0.00 0.0 M M M
4/12/2020 7:00 AM T M M M M Heavier pcpn all quads it seemed.
4/13/2020 7:00 AM 0.00 0.0 M M M
4/14/2020 7:00 AM 0.00 0.0 M M M
4/15/2020 7:00 AM 0.00 0.0 M M M
4/16/2020 7:00 AM 0.00 0.0 M M M
4/17/2020 7:00 AM 0.00 0.0 M M M
4/18/2020 7:00 AM 0.00 0.0 M M M
4/19/2020 7:00 AM 0.00 0.0 M M M
4/20/2020 7:00 AM 0.00 0.0 M M M
4/21/2020 7:00 AM 0.00 0.0 M M M
4/22/2020 7:00 AM 0.00 0.0 M M M
4/23/2020 7:00 AM 0.00 0.0 M M M
4/24/2020 7:00 AM 0.00 0.0 M M M
4/25/2020 7:00 AM 0.00 0.0 M M M
4/26/2020 7:00 AM 0.00 0.0 M M M
4/27/2020 7:00 AM 0.00 0.0 M M M
4/28/2020 7:00 AM 0.00 0.0 M M M
4/29/2020 7:00 AM 0.00 0.0 M M M
4/30/2020 7:00 AM 0.00 0.0 M M M
5/1/2020 7:00 AM 0.00 0.0 M M M
5/2/2020 7:00 AM 0.00 0.0 M M M
5/3/2020 7:00 AM 0.00 0.0 M M M
5/4/2020 7:00 AM 0.00 0.0 M M M
5/5/2020 7:00 AM 0.00 0.0 M M M
5/6/2020 7:00 AM 0.00 0.0 M M M
5/7/2020 7:00 AM 0.00 0.0 M M M
5/8/2020 7:00 AM 0.00 0.0 M M M
5/9/2020 7:00 AM 0.00 0.0 M M M
5/10/2020 7:00 AM 0.00 0.0 M M M
5/11/2020 7:00 AM T 0.0 M M M Two SPKLS during day, first late morning, TSTM in VCNTY, and another in the mid-afternoon from an heavy As anvil overhang.
5/12/2020 7:00 AM 0.00 0.0 M M M
5/13/2020 7:00 AM 0.00 0.0 M M M
5/14/2020 7:00 AM 0.00 0.0 M M M
5/15/2020 7:00 AM 0.00 0.0 M M M
5/16/2020 7:00 AM 0.00 0.0 M M M
5/17/2020 7:00 AM 0.00 0.0 M M M
5/18/2020 7:00 AM 0.00 0.0 M M M
5/19/2020 7:00 AM 0.00 0.0 M M M
5/20/2020 7:00 AM 0.00 0.0 M M M
5/21/2020 7:00 AM 0.00 0.0 M M M
5/22/2020 7:00 AM 0.00 0.0 M M M
5/23/2020 7:00 AM 0.00 0.0 M M M
5/24/2020 7:00 AM 0.00 0.0 M M M
5/25/2020 7:00 AM 0.00 0.0 M M M
5/26/2020 7:00 AM 0.00 0.0 M M M
5/27/2020 7:00 AM 0.00 0.0 M M M
5/28/2020 7:00 AM 0.00 0.0 M M M
5/29/2020 7:00 AM 0.00 0.0 M M M
5/30/2020 7:00 AM T M M M M A few AFTN SPKLS amid surrounding weak, hi-based TSTMs.
5/31/2020 7:00 AM 0.00 0.0 M M M
6/1/2020 7:00 AM 0.00 0.0 M M M
6/2/2020 7:00 AM T M M M M literally about one minute of drops at 2:54 PM. Cbs alqds but here.
6/3/2020 7:00 AM 0.00 0.0 M M M
6/4/2020 7:00 AM 0.00 0.0 M M M
6/5/2020 7:00 AM 0.00 0.0 M M M
6/6/2020 7:00 AM 0.03 M M M M CoCo gauge blew over, amount is from 8-inch diameter NWS style gauge. Davis Vantage Pro TB, 0.01 inches. OCNL TSTMS 8-11 PM, measurable rain occurred in burst at 11 PM. LRG started fires on Pusch Ridge and in the Tortolita mountains.
6/7/2020 7:00 AM 0.00 0.0 M M M
6/8/2020 7:00 AM 0.00 0.0 M M M
6/9/2020 7:00 AM 0.00 0.0 M M M
6/10/2020 7:00 AM 0.00 0.0 M M M
6/11/2020 7:00 AM 0.00 0.0 M M M
6/12/2020 7:00 AM 0.00 0.0 M M M
6/13/2020 7:00 AM 0.00 0.0 M M M
6/14/2020 7:00 AM 0.00 0.0 M M M
6/15/2020 7:00 AM 0.00 0.0 M M M
6/16/2020 7:00 AM 0.00 0.0 M M M
6/17/2020 7:00 AM 0.00 0.0 M M M
6/18/2020 7:00 AM 0.00 0.0 M M M
6/19/2020 7:00 AM 0.00 0.0 M M M
6/20/2020 7:00 AM 0.00 0.0 M M M
6/21/2020 7:00 AM 0.00 0.0 M M M
6/22/2020 7:00 AM 0.00 0.0 M M M
6/23/2020 7:00 AM 0.00 0.0 M M M
6/24/2020 7:00 AM 0.00 0.0 M M M
6/25/2020 7:00 AM 0.00 0.0 M M M
6/26/2020 7:00 AM 0.00 0.0 M M M
6/27/2020 7:00 AM 0.00 0.0 M M M
6/28/2020 7:00 AM T M M M M Just seconds of drops at 2:30 PM AST as high-based TSTM passed overhead E. If not outside, would NEVER have observed them.
6/29/2020 7:00 AM 0.00 0.0 M M M
6/30/2020 7:00 AM 0.00 0.0 M M M
7/1/2020 7:00 AM 0.00 0.0 M M M
7/2/2020 7:00 AM T M M M M Exactly TWO drops were observed at 6:22 PM. One landed on my glasses!
7/3/2020 7:00 AM T M M M M Isolated drops from debris clouds.
7/4/2020 7:00 AM 0.00 0.0 M M M
7/5/2020 7:00 AM 0.00 0.0 M M M
7/6/2020 7:00 AM 0.00 0.0 M M M
7/7/2020 7:00 AM 0.00 0.0 M M M
7/8/2020 7:00 AM 0.00 0.0 M M M
7/9/2020 7:00 AM 0.00 0.0 M M M
7/10/2020 7:00 AM 0.00 0.0 M M M
7/11/2020 7:00 AM 0.00 0.0 M M M
7/12/2020 7:00 AM 0.20 M M M M 0.18 inches in CoCo gauge due to shadowing by a bush in strong north to northeast winds. 0.20 inches was measured in better protected NWS 8-inch gauge. O.16 inches indicated by Davis Vantage Pro TB. Rain fell as violent outflow winds, gusts to 50 mph (43 mph measured) hit full of ash from the Big Horn fire around 8 PM AST. Rain fell between 8:30 and 9:30 PM. FQT LTG, mostly in cloud with very few CG strikes.
7/13/2020 7:00 AM 0.01 M M M M 0.01 in COCo gauge and NWS style 8-inch gauge. Davis TB did not tip. Rain fell between 3 and 4 AM in weak TSTM, cores elsewhere. Bases high, above 10,000 kft AGL.
7/14/2020 7:00 AM T M M M M A mid-morning drops from ACCAS with virga, micro-CBs
7/15/2020 7:00 AM 0.00 0.0 M M M
7/17/2020 7:00 AM T M M M M A smattering of drops at 5:47 PM on the S backside of a Cu cong. Cb complex N-E toward the town of Oracle.
7/18/2020 7:00 AM 0.00 0.0 M M M
7/19/2020 7:00 AM 0.00 0.0 M M M
7/20/2020 7:00 AM T M M M M Two episodes of RW-- from thick Ac layer with virga, 8:58 and 10:18 AM plus or minus a couple of minutes.
7/21/2020 7:00 AM 0.00 0.0 M M M SPKLS IN AREA from morning mid-level OVC, may have missed a drop
7/22/2020 7:00 AM T M M M M Isolated drops felt when exercising at 3:15 am.
7/23/2020 7:00 AM 0.04 M M M M 0.04 CoCo gauge, 0.03 inches in NWS-style 9-inch gauge, 0.01 inches indicated by Davis TB. Fell between 10:30 and 11:30 PM.
7/24/2020 7:00 AM 0.13 M M M M 0.13 in Coco and NWS gauges, 0.11 indicated by Davis TB
7/25/2020 7:00 AM 0.00 0.0 M M M
7/26/2020 7:00 AM 0.00 0.0 M M M
7/27/2020 7:00 AM 0.00 0.0 M M M
7/28/2020 7:00 AM T M M M M Two periods of drops from Cumulonimbus debris trailing off the Catalinas.
7/29/2020 7:00 AM 0.18 M M M M 0.18 CoCo gauge, 0.18 NWS 8-inch gauge, 0.15 indicated by Davis TB.Fell as TRW between 2 and 3 pm. Heavier shafts abounded.
7/30/2020 7:00 AM 0.00 0.0 M M M
7/31/2020 7:00 AM 0.00 0.0 M M M
8/1/2020 7:00 AM T M M M M Isolated drops from Ac opacus shedding virga after 5 AM.
8/2/2020 7:00 AM 0.00 0.0 M M M
8/3/2020 7:00 AM 0.00 0.0 M M M
8/4/2020 7:00 AM 0.03 M M M M 0.03 in 8-inch NWS gauge, 0.02 inches indicated by Davis TB. Mysteriously, CoCo gauge dry! Rain fell from small nearly overhead Cbs, rainshafts from them were transparent.
8/5/2020 7:00 AM 0.00 0.0 M M M
8/6/2020 7:00 AM 0.00 0.0 M M M
8/7/2020 7:00 AM 0.00 0.0 M M M
8/8/2020 7:00 AM 0.00 0.0 M M M
8/9/2020 7:00 AM 0.00 0.0 M M M
8/10/2020 7:00 AM 0.00 0.0 M M M
8/11/2020 7:00 AM 0.00 0.0 M M M
8/12/2020 7:00 AM T M M M M Drop images in dusty surfaces supported by evening radar imagery.
8/13/2020 7:00 AM 0.00 0.0 M M M
8/14/2020 7:00 AM 0.00 0.0 M M M
8/15/2020 7:00 AM 0.00 0.0 M M M
8/16/2020 7:00 AM 0.00 0.0 M M M
8/17/2020 7:00 AM 1.14 M M M M 1.14 inches in both the CoCo ground mounted gauge and NWS 8-inch gauge. Pea and a few marble sized hailstones, but the real story was the wind, estimated at over 70-75 mph in TRW++, VSBY down to 10s of meters, Davis measured 68 mph. Davis Vantage Pro failed in measuring rain, probably clogged with something. Also, went dead after power outage. Power outage lasted several hours.
8/18/2020 7:00 AM 0.00 0.0 M M M
8/19/2020 7:00 AM 0.00 0.0 M M M
8/20/2020 7:00 AM 0.00 0.0 M M M
8/21/2020 7:00 AM 0.04 0.0 M M M 0.04 inches in CoCo gauge, 0.04 inches indicated by Davis TB. NWS gauge was not emptied after last storm so was unusable for this event. TRW- in evening.
8/22/2020 7:00 AM 0.00 0.0 M M M
8/23/2020 7:00 AM T M M M M Overhang from Cb anchored near Mt. Lemmon produced a few drops twice, first at 1:30 PM.
8/24/2020 7:00 AM 0.00 0.0 M M M
8/26/2020 7:00 AM T M M M M Minimal and questionable trace. Felt ONE drop from a small patch of shower just to the NW. Earlier, rad had a weak cell overhead, but felt no drops during a lesser intensity of that cell overhead.
8/27/2020 7:00 AM 0.00 0.0 M M M
8/28/2020 7:00 AM 0.00 0.0 M M M
8/29/2020 7:00 AM 0.00 0.0 M M M
8/30/2020 7:00 AM 1.02 M M M M 1.02 inches in CoCo gauge, 1.00 in NWS style gauge, 0.98 inches indicated by Davis TB. RW+ TSTM hit at 5:40 PM. Brief RW++ VSBY down to 100-200 yards, gusts to between 50 and 60 mph from NW; switched to NE after heaviest rain; measured by Davis, 46 mph. OCNL LTG only.
8/31/2020 7:00 AM 0.07 M M M M RW- began 8:15 PM. 0.07 inches in CoCo, 0.07 inches in NWS style gauge, 0.05 inches indicated by Davis tipping bucket (TB).
9/1/2020 7:00 AM 0.00 0.0 M M M
9/2/2020 7:00 AM 0.00 0.0 M M M
9/3/2020 7:00 AM 0.00 0.0 M M M
9/4/2020 7:00 AM 0.00 0.0 M M M
9/5/2020 7:00 AM 0.00 0.0 M M M
9/6/2020 7:00 AM 0.00 0.0 M M M
9/7/2020 7:00 AM 0.00 0.0 M M M
9/8/2020 7:00 AM 0.00 0.0 M M M
9/9/2020 7:00 AM T M M M M Several drops from last gasp RW-, 5-6 PM.
9/10/2020 7:00 AM 0.00 0.0 M M M
9/11/2020 7:00 AM 0.00 0.0 M M M
9/12/2020 7:00 AM 0.00 0.0 M M M
9/13/2020 7:00 AM 0.00 0.0 M M M
9/14/2020 7:00 AM 0.00 0.0 M M M
9/15/2020 7:00 AM 0.00 0.0 M M M
9/16/2020 7:00 AM 0.00 0.0 M M M
9/17/2020 7:00 AM 0.00 0.0 M M M
9/18/2020 7:00 AM 0.00 0.0 M M M
9/19/2020 7:00 AM 0.00 0.0 M M M
9/20/2020 7:00 AM 0.00 0.0 M M M
9/21/2020 7:00 AM 0.00 0.0 M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.00 0.0 M M M
9/24/2020 7:00 AM 0.00 0.0 M M M
9/25/2020 7:00 AM 0.00 0.0 M M M
9/26/2020 7:00 AM 0.00 0.0 M M M
9/27/2020 7:00 AM 0.00 0.0 M M M
9/28/2020 7:00 AM 0.00 0.0 M M M
9/29/2020 7:00 AM 0.00 0.0 M M M
9/30/2020 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