Station Overview Station Location
Station Number MO-SL-23 Latitude 38.816427
Station Name Florissant 4.4 ENE Longitude -90.247009
County St. Louis Elevation (ft) 498



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 10 3.44 0.87 31 0.87 27 0.00 4 1 5 0 0.0 0 0
Nov 10 3.90 5.39 30 5.39 30 0.00 0 0 7 1 0.3 1 0
Dec 10 2.96 3.09 32 0.59 29 2.50 3 1 5 6 2.4 3 1
Jan 11 2.37 1.46 34 1.46 27 0.00 7 2 9 3 15.0 8 13
Feb 11 2.40 3.76 29 2.38 24 1.38 5 2 7 3 4.4 3 6
March 11 3.20 5.27 32 5.27 27 0.00 5 2 11 4 4.9 4 3
April 11 3.82 9.88 30 9.88 30 0.00 0 0 18 0 0.0 0 0
May 11 4.93 3.93 31 3.93 31 0.00 0 0 17 0 0.0 0 0
June 11 3.94 8.63 29 8.63 27 0.00 2 1 10 0 0.0 0 0
July 11 3.91 2.92 31 2.92 21 0.00 10 1 5 0 0.0 0 0
Aug 11 3.24 0.65 31 0.65 31 0.00 0 0 8 1 0.0 0 0
Sept 11 3.26 3.90 30 3.90 30 0.00 0 0 10 4 0.0 0 0
Water Year Totals: 41.37" 49.75" 370 days 45.87" 334 3.88" 36 days 10 112 days 22 days 27.0" 19 days 23 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
10/1/2010 0.00
10/2/2010 0.00
10/3/2010 0.06
10/4/2010 0.00
10/5/2010 0.00
10/6/2010 0.00
10/7/2010 0.00
10/8/2010 0.00
10/9/2010 0.00
10/10/2010 0.00
10/11/2010 0.00
10/12/2010 0.00
10/13/2010 0.08
10/14/2010 0.00
10/15/2010 **
10/16/2010 **
10/17/2010 **
10/18/2010 0.00
10/19/2010 0.00
10/20/2010 0.00
10/21/2010 0.00
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.02
10/25/2010 0.38
10/26/2010 0.33
10/27/2010 0.00
10/28/2010 0.00
10/29/2010 0.00
10/30/2010 0.00
10/31/2010 0.00
11/1/2010 0.00
11/2/2010 0.00
11/3/2010 0.00
11/4/2010 0.00
11/5/2010 T
11/6/2010 0.00
11/7/2010 0.00
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 0.00
11/13/2010 0.03
11/14/2010 0.00
11/15/2010 0.00
11/16/2010 0.00
11/17/2010 0.00
11/18/2010 0.27
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 0.00
11/22/2010 0.00
11/23/2010 0.54
11/24/2010 1.30
11/25/2010 2.48
11/26/2010 0.20
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 0.00
11/30/2010 0.57
12/1/2010 T
12/2/2010 0.00
12/3/2010 T
12/4/2010 0.00
12/5/2010 0.00
12/6/2010 T
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.00
12/11/2010 0.16
12/12/2010 0.28
12/13/2010 0.01
12/14/2010 0.00
12/15/2010 0.00
12/16/2010 0.04
12/17/2010 0.00
12/18/2010 0.00
12/19/2010 T
12/20/2010 0.00
12/21/2010 0.00
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 T **
12/25/2010 **
12/26/2010 2.50
12/27/2010 0.00
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 0.10
12/31/2010 T
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.40
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 0.00
1/7/2011 T
1/8/2011 0.02
1/9/2011 0.00
1/10/2011 0.00
1/11/2011 0.23
1/12/2011 0.03
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 0.00
1/18/2011 0.03
1/19/2011 0.03
1/20/2011 0.61
1/21/2011 0.04
1/22/2011 T
1/23/2011 T
1/24/2011 0.07
1/25/2011 0.00
1/26/2011 0.00 **
1/27/2011 **
1/28/2011 **
1/29/2011 **
1/30/2011 0.00
1/31/2011 0.00 **
2/1/2011 **
2/2/2011 1.38
2/3/2011 T
2/4/2011 0.00
2/5/2011 0.21
2/6/2011 T
2/7/2011 0.00
2/8/2011 0.00
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 0.00
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.00
2/20/2011 0.01
2/21/2011 0.21
2/22/2011 0.21
2/23/2011 0.12
2/24/2011 T
2/25/2011 0.95 **
2/26/2011 **
2/27/2011 T
2/28/2011 0.67
3/1/2011 0.00
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 T
3/5/2011 2.21
3/6/2011 0.01
3/7/2011 0.00
3/8/2011 0.00
3/9/2011 0.51
3/10/2011 T
3/11/2011 0.00
3/12/2011 **
3/13/2011 0.00
3/14/2011 1.06
3/15/2011 0.55
3/16/2011 0.00 **
3/17/2011 **
3/18/2011 0.00
3/19/2011 0.15
3/20/2011 0.31
3/21/2011 0.00
3/22/2011 0.00
3/23/2011 T
3/24/2011 T
3/25/2011 0.17
3/26/2011 0.07
3/27/2011 0.18
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.05
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.00
4/2/2011 0.00
4/3/2011 0.00
4/4/2011 0.82
4/5/2011 0.00
4/6/2011 0.00
4/7/2011 0.00
4/8/2011 0.03
4/9/2011 0.52
4/10/2011 0.00
4/11/2011 0.49
4/12/2011 0.03
4/13/2011 0.00
4/14/2011 0.00
4/15/2011 0.40
4/16/2011 0.80
4/17/2011 0.02
4/18/2011 0.00
4/19/2011 1.71
4/20/2011 1.19
4/21/2011 0.00
4/22/2011 0.14
4/23/2011 1.28
4/24/2011 0.72
4/25/2011 0.16
4/26/2011 0.79
4/27/2011 0.06
4/28/2011 0.67
4/29/2011 0.05
4/30/2011 0.00
5/1/2011 0.00
5/2/2011 0.37
5/3/2011 0.00
5/4/2011 0.00
5/5/2011 0.00
5/6/2011 0.06
5/7/2011 0.15
5/8/2011 0.00
5/9/2011 0.00
5/10/2011 0.00
5/11/2011 0.08
5/12/2011 0.00
5/13/2011 0.01
5/14/2011 0.29
5/15/2011 0.25
5/16/2011 0.24
5/17/2011 0.00
5/18/2011 0.00
5/19/2011 0.00
5/20/2011 0.02
5/21/2011 0.03
5/22/2011 0.00
5/23/2011 0.39
5/24/2011 0.31
5/25/2011 0.23
5/26/2011 1.35
5/27/2011 0.08
5/28/2011 0.04
5/29/2011 0.03
5/30/2011 0.00
5/31/2011 0.00
6/1/2011 0.00
6/2/2011 0.00
6/3/2011 0.00
6/4/2011
6/5/2011 **
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.00
6/10/2011 0.00
6/11/2011 0.95
6/12/2011 0.00
6/13/2011 0.00
6/14/2011 1.16
6/15/2011 0.44
6/16/2011 0.00
6/17/2011 0.00
6/18/2011 2.05
6/19/2011 0.38
6/20/2011 0.00
6/21/2011 0.08
6/22/2011 0.01
6/23/2011 0.00
6/24/2011 0.00
6/25/2011 0.00
6/26/2011 2.74
6/27/2011 0.50
6/28/2011 0.32
6/29/2011 0.00
6/30/2011 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2011 0.00
7/2/2011 0.00
7/3/2011 0.00
7/4/2011 1.42
7/5/2011 0.02
7/6/2011 0.00
7/7/2011 0.00
7/8/2011 0.58
7/9/2011 0.00
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.00
7/13/2011 0.81
7/14/2011 0.00
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.00
7/19/2011 0.00
7/20/2011 **
7/21/2011 **
7/22/2011 **
7/23/2011 **
7/24/2011 **
7/25/2011 **
7/26/2011 **
7/27/2011 **
7/28/2011 **
7/29/2011 0.00
7/30/2011 0.00
7/31/2011 0.09
8/1/2011 0.00
8/2/2011 0.00
8/3/2011 0.00
8/4/2011 0.00
8/5/2011 0.14
8/6/2011 0.11
8/7/2011 T
8/8/2011 0.00
8/9/2011 0.00
8/10/2011 0.00
8/11/2011 0.08
8/12/2011 0.00
8/13/2011 0.07
8/14/2011 0.00
8/15/2011 0.00
8/16/2011 0.00
8/17/2011 0.01
8/18/2011 0.00
8/19/2011 0.09
8/20/2011 0.00
8/21/2011 0.06
8/22/2011 0.00
8/23/2011 0.09
8/24/2011 0.00
8/25/2011 0.00
8/26/2011 0.00
8/27/2011 0.00
8/28/2011 0.00
8/29/2011 0.00
8/30/2011 0.00
8/31/2011 0.00
9/1/2011 0.00
9/2/2011 0.00
9/3/2011 0.00
9/4/2011 0.54
9/5/2011 0.00
9/6/2011 0.00
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 0.07
9/10/2011 0.13
9/11/2011 T
9/12/2011 0.00
9/13/2011 0.00
9/14/2011 0.51
9/15/2011 1.16
9/16/2011 0.00
9/17/2011 0.02
9/18/2011 T
9/19/2011 1.39
9/20/2011 T
9/21/2011 0.00
9/22/2011 T
9/23/2011 0.02
9/24/2011 0.05
9/25/2011 0.00
9/26/2011 0.00
9/27/2011 0.01
9/28/2011 0.00
9/29/2011 0.00
9/30/2011 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 8:00 AM 0.00 0.0 M M M
10/2/2010 8:00 AM 0.00 0.0 M M M
10/3/2010 8:00 AM 0.06 M M M M
10/4/2010 8:00 AM 0.00 0.0 M M M
10/5/2010 8:00 AM 0.00 0.0 M M M
10/6/2010 8:00 AM 0.00 0.0 M M M
10/7/2010 8:00 AM 0.00 0.0 M M M
10/8/2010 8:00 AM 0.00 0.0 M M M
10/9/2010 8:00 AM 0.00 0.0 M M M
10/10/2010 8:00 AM 0.00 0.0 M M M
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 8:00 AM 0.00 0.0 M M M
10/13/2010 8:00 AM 0.08 M M M M
10/14/2010 8:00 AM 0.00 0.0 M M M
10/19/2010 8:00 AM 0.00 0.0 M M M
10/20/2010 8:00 AM 0.00 0.0 M M M
10/21/2010 8:00 AM 0.00 0.0 M M M
10/22/2010 8:00 AM 0.00 0.0 M M M
10/23/2010 8:00 AM 0.00 0.0 M M M
10/24/2010 9:00 AM 0.02 M M M M
10/25/2010 8:00 AM 0.38 M M M M
10/26/2010 8:00 AM 0.33 M M M M
10/27/2010 8:00 AM 0.00 0.0 M M M
10/28/2010 8:00 AM 0.00 0.0 M M M
10/29/2010 8:00 AM 0.00 0.0 M M M
10/30/2010 8:00 AM 0.00 0.0 M M M
10/31/2010 8:00 AM 0.00 0.0 M M M
11/1/2010 8:00 AM 0.00 0.0 M M M
11/2/2010 8:00 AM 0.00 0.0 M M M
11/3/2010 8:00 AM 0.00 0.0 M M M
11/4/2010 8:00 AM 0.00 0.0 M M M
11/5/2010 8:00 AM T M M M M
11/6/2010 8:00 AM 0.00 0.0 M M M
11/7/2010 8:00 AM 0.00 0.0 M M M
11/8/2010 8:00 AM 0.00 0.0 M M M
11/9/2010 8:00 AM 0.00 0.0 M M M
11/10/2010 8:00 AM 0.00 0.0 M M M
11/11/2010 8:00 AM 0.00 0.0 M M M
11/12/2010 8:00 AM 0.00 0.0 M M M
11/13/2010 8:00 AM 0.03 M M M M
11/14/2010 8:00 AM 0.00 0.0 M M M
11/15/2010 7:00 AM 0.00 0.0 M M M
11/16/2010 8:00 AM 0.00 0.0 M M M
11/17/2010 8:00 AM 0.00 0.0 M M M
11/18/2010 8:00 AM 0.27 M M M M
11/19/2010 8:00 AM 0.00 0.0 M M M
11/20/2010 8:00 AM 0.00 0.0 M M M
11/21/2010 8:00 AM 0.00 0.0 M M M
11/22/2010 8:00 AM 0.00 0.0 M M M
11/23/2010 8:00 AM 0.54 M M M M
11/24/2010 8:00 AM 1.30 M M M M
11/25/2010 8:00 AM 2.48 M M M M
11/26/2010 8:00 AM 0.20 0.3 0.02 T M Thanksgiving Day: Light spitting rain until 1:00 pm. Changed to snow flurries until 2:15 pm. First snow for this area.
11/27/2010 8:00 AM 0.00 0.0 M M M
11/28/2010 8:00 AM 0.00 0.0 M M M
11/29/2010 8:00 AM 0.00 0.0 M M M
11/30/2010 8:00 AM 0.57 M M M M
12/1/2010 8:00 AM T M M M M Trace of snow flakes in the inner tube. There was a small amount of snow flurries observed yesterday afternoon.
12/2/2010 8:00 AM 0.00 0.0 M M M
12/3/2010 8:00 AM T T T M M Snow flurries occurred early morning of 12/2/10. There was a partial dusting of snow on the ground. No further precipation occurred.
12/4/2010 8:00 AM 0.00 0.0 M M M
12/5/2010 8:00 AM 0.00 0.0 M M M
12/6/2010 8:00 AM T M M M M A brief, small amount of snow flurries.
12/7/2010 8:00 AM 0.00 0.0 M M M
12/8/2010 8:00 AM 0.00 0.0 M M M
12/9/2010 8:00 AM 0.00 0.0 M M M
12/10/2010 8:00 AM 0.00 0.0 M M M
12/11/2010 8:00 AM 0.16 M M M M
12/12/2010 8:00 AM 0.28 1.8 0.10 2.0 0.10 Light rain during daytime period. Snow flurries in the evening. Snow began some time after 1:30am and a blanket of snow covered the streets and yards.
12/13/2010 8:00 AM 0.01 M M M M Trace flurries throught yesterday. Very windy, but it does not appear to be any measureable new snow.
12/14/2010 8:00 AM 0.00 0.0 M M M
12/15/2010 8:00 AM 0.00 0.0 M M M
12/16/2010 8:00 AM 0.04 M M M M Ice accummulation in the outer tube (0.04"). 1/32" ice on tree branch.
12/17/2010 8:00 AM 0.00 0.0 M M M
12/18/2010 8:00 AM 0.00 0.0 M M M
12/19/2010 8:00 AM T 0.3 0.01 M M
12/20/2010 8:00 AM 0.00 0.0 M M M
12/21/2010 8:00 AM 0.00 0.0 M M M
12/22/2010 8:00 AM 0.00 0.0 M M M
12/23/2010 8:00 AM 0.00 0.0 M M M
12/24/2010 8:00 AM T 0.3 0.01 M M The snow started to fall at approximately 8:30am. Snow is accummulating on all of the yards and streets.
12/27/2010 8:00 AM 0.00 0.0 M M M
12/28/2010 8:00 AM 0.00 0.0 M M M
12/29/2010 8:00 AM 0.00 0.0 M M M
12/30/2010 8:00 AM 0.10 M M M M Warm temperature and rain has melted all of the snow.
12/31/2010 8:00 AM T M M M M
1/1/2011 8:00 AM 0.40 M M M M Daytime Dec. 31, 2010: Severe storms hit the St. Louis area. Rain, straight line winds, tornado touch downs occurred in the Fenton and Sunset Hills areas. Damage to buildings and homes, electric power poles and loss of power occurred in these areas. The north St. Louis county where this rain gauge is located did not see the wind damage to buildings, etc. The rain started around 11:00am and stopped around 1:15am. The rain gauge was emptied at that time (0.38")and was found with an additional 0.02" prior to reporting the precipatation this morning for a total of 0.40" of rain.
1/2/2011 8:00 AM 0.00 0.0 M M M
1/3/2011 7:00 AM 0.00 0.0 M M M
1/4/2011 8:00 AM 0.00 0.0 M M M
1/5/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 8:00 AM 0.00 0.0 M M M
1/7/2011 8:00 AM T 0.1 T M M Scattered & partial snow dusting on the lawns and streets.
1/8/2011 8:00 AM 0.02 T M M M Snow flurries throughout the day with some rain precipation, leaving only a trace of snow on the lawn. Melted residue in the 4" dia tube was 0.02".
1/9/2011 8:00 AM 0.00 0.0 M M M
1/10/2011 8:00 AM 0.00 0.0 M M M
1/11/2011 8:00 AM 0.23 3.3 0.22 3.3 M
1/12/2011 8:00 AM 0.03 0.3 0.04 2.5 0.17
1/13/2011 8:00 AM 0.00 0.0 M 2.0 0.16
1/14/2011 8:00 AM 0.00 0.0 M 1.5 0.13
1/15/2011 11:00 AM 0.00 0.0 M 1.0 0.13
1/16/2011 9:00 AM 0.00 0.0 M M M Snow has been melting for the last couple of days and only patches of snow are left on the lawns
1/17/2011 8:00 AM 0.00 0.0 M M M
1/18/2011 8:00 AM 0.03 M M M M
1/19/2011 8:00 AM 0.03 0.1 0.01 M M Rain precipation was 0.03" during the morning with scattered snow flurries in late morning(no accummulation). Overnight there was a dusting of snow(.1" t.) that slightly covered the lawns and sidewalks(0.01" melted).
1/20/2011 8:00 AM 0.61 10.0 0.60 9.5 0.60
1/21/2011 8:00 AM 0.04 0.5 0.04 8.0 0.62
1/22/2011 8:00 AM T M M 7.0 0.56
1/23/2011 8:00 AM T 0.1 0.01 5.5 0.65
1/24/2011 8:00 AM 0.07 0.6 0.09 5.5 0.68
1/25/2011 8:00 AM 0.00 0.0 M 4.5 0.62
1/26/2011 8:00 AM 0.00 0.0 M 4.0 0.65
1/31/2011 8:00 AM 0.00 0.0 M 1.5 0.36 Snow has melted considerably over the past week. The lawn has many exposed grassy areas. Took measurement in the same area as the previous measurements in the past week.
2/3/2011 8:00 AM T M M M M Very light snow flurries were observed throughout the day.
2/4/2011 8:00 AM 0.00 0.0 M 2.0 M
2/5/2011 8:00 AM 0.21 2.8 0.21 5.0 0.81
2/6/2011 8:00 AM T M M M M
2/7/2011 8:00 AM 0.00 0.0 M M M
2/8/2011 8:00 AM 0.00 0.0 M M M
2/9/2011 8:00 AM 0.00 0.0 M M M
2/10/2011 8:00 AM 0.00 0.0 M 2.5 M
2/11/2011 8:00 AM 0.00 0.0 M M M
2/12/2011 8:00 AM 0.00 0.0 M 2.0 M Ground continues to be covered with ice and frozen snow. The warming period should begin the melting and elimation of the snow/ice throughout the North County area in the next couple of days.
2/13/2011 9:00 AM 0.00 0.0 M 1.5 M
2/14/2011 8:00 AM 0.00 0.0 M 0.5 M
2/15/2011 7:00 AM 0.00 0.0 M M M The snow/ice is all gone except for some patches where the heaviest snow accummulated.
2/16/2011 8:00 AM 0.00 0.0 M M M
2/17/2011 8:00 AM 0.00 0.0 M M M
2/18/2011 8:00 AM 0.00 0.0 M M M
2/19/2011 8:00 AM 0.00 0.0 M M M
2/20/2011 8:00 AM 0.01 0.0 M M M
2/21/2011 7:00 AM 0.21 M M M M
2/22/2011 8:00 AM 0.21 M M M M
2/23/2011 7:00 AM 0.12 0.1 M M M Some freezing rain and sleet. Sleet was approximately 3/16" size and the ice accummulation was approximately 1/16" thick.
2/24/2011 8:00 AM T M M M M
2/25/2011 8:00 AM 0.95 1.5 1.04 M M It was a rainy day that turned into brief period of sleet for approx. 30 mins.. A dusting of snow accummulated at approx. 10:00pm that continued over night(1.5" thick).
2/28/2011 7:00 AM 0.67 M M M M
3/1/2011 8:00 AM 0.00 0.0 M M M
3/2/2011 7:00 AM 0.00 0.0 M M M
3/3/2011 10:00 AM 0.00 0.0 M M M
3/4/2011 8:00 AM T M M M M
3/5/2011 8:00 AM 2.21 M M M M
3/6/2011 8:00 AM 0.01 M M M M
3/7/2011 8:00 AM 0.00 0.0 M M M
3/8/2011 8:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.51 M M M M
3/10/2011 8:00 AM T M M M M
3/11/2011 8:00 AM 0.00 0.0 M M M
3/14/2011 7:20 AM 1.06 0.5 0.94 0.5 0.26
3/15/2011 8:00 AM 0.55 1.5 0.37 0.5 M Snow accummulation ended approx. 3:30pm on March 14. It was approx. 1-1/2" thick with a melted value of 0.37" and then the rest of the accummulation of precipation was rain (0.18"). Almost all of the snow has melted overnight leaving approx 3/8" of snow on the lawns.
3/16/2011 7:00 AM 0.00 0.0 M M M
3/19/2011 8:00 AM 0.15 M M M M
3/20/2011 8:00 AM 0.31 M M M M
3/21/2011 8:00 AM 0.00 0.0 M M M
3/22/2011 8:00 AM 0.00 0.0 M M M
3/23/2011 8:00 AM T M M M M
3/24/2011 8:00 AM T M M M M
3/25/2011 8:00 AM 0.17 0.7 0.17 M M Light snow continues to fall in the north county area.
3/26/2011 8:00 AM 0.07 0.0 M 0.0 M All of the snow accummulation on Friday has melted.
3/27/2011 8:00 AM 0.18 2.2 0.21 4.0 M
3/28/2011 7:00 AM 0.00 0.0 0.00 0.0 0.00 The snow has completely melted on Sunday.
3/29/2011 9:00 AM 0.00 0.0 M M M
3/30/2011 7:00 AM 0.05 M M M M
3/31/2011 9:00 AM 0.00 0.0 M M M
4/1/2011 8:00 AM 0.00 0.0 M M M
4/2/2011 9:00 AM 0.00 0.0 M M M
4/3/2011 8:00 AM 0.00 0.0 M M M
4/4/2011 7:00 AM 0.82 M M M M Rain and hail occurred on early Monday morning. A short period of pea sized hail occurred approximately 6:15am
4/5/2011 8:00 AM 0.00 0.0 M M M
4/6/2011 8:00 AM 0.00 0.0 M M M
4/7/2011 8:00 AM 0.00 0.0 M M M
4/8/2011 7:00 AM 0.03 M M M M
4/9/2011 8:00 AM 0.52 M M M M
4/10/2011 8:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM 0.49 M M M M
4/12/2011 7:00 AM 0.03 M M M M
4/13/2011 8:00 AM 0.00 0.0 M M M
4/14/2011 8:00 AM 0.00 0.0 M M M
4/15/2011 8:00 AM 0.40 M M M M
4/16/2011 8:00 AM 0.80 M M M M On Friday afternoon, pea sized hail started to fall at approximately 4:40pm for 10 minutes. The hail was mixed in with the rain.
4/17/2011 8:00 AM 0.02 M M M M
4/18/2011 8:00 AM 0.00 0.0 M M M
4/19/2011 8:00 AM 1.71 M M M M
4/20/2011 7:00 AM 1.19 M M M M Pea sized hail occurred a couple of times during the evening while it was raining.
4/21/2011 8:00 AM 0.00 0.0 M M M
4/22/2011 8:00 AM 0.14 M M M M
4/23/2011 8:00 AM 1.28 M M M M Rain, hail, winds, and tornados hit the St. Louis County area on Good Friday evening.
4/24/2011 8:00 AM 0.72 M M M M
4/25/2011 7:00 AM 0.16 M M M M
4/26/2011 7:00 AM 0.79 M M M M
4/27/2011 8:00 AM 0.06 M M M M
4/28/2011 7:00 AM 0.67 M M M M
4/29/2011 7:00 AM 0.05 M M M M
4/30/2011 8:00 AM 0.00 0.0 M M M
5/1/2011 8:00 AM 0.00 0.0 M M M
5/2/2011 7:00 AM 0.37 M M M M
5/3/2011 8:00 AM 0.00 0.0 M M M
5/4/2011 7:00 AM 0.00 0.0 M M M
5/5/2011 7:00 AM 0.00 0.0 M M M
5/6/2011 8:00 AM 0.06 M M M M
5/7/2011 8:00 AM 0.15 M M M M
5/8/2011 7:00 AM 0.00 0.0 M M M
5/9/2011 8:00 AM 0.00 0.0 M M M
5/10/2011 8:00 AM 0.00 0.0 M M M
5/11/2011 7:00 AM 0.08 M M M M
5/12/2011 8:00 AM 0.00 0.0 M M M
5/13/2011 8:00 AM 0.01 M M M M
5/14/2011 9:00 AM 0.29 M M M M
5/15/2011 8:00 AM 0.25 M M M M
5/16/2011 7:00 AM 0.24 M M M M
5/17/2011 8:00 AM 0.00 0.0 M M M
5/18/2011 8:00 AM 0.00 0.0 M M M
5/19/2011 8:00 AM 0.00 0.0 M M M
5/20/2011 12:00 PM 0.02 M M M M
5/21/2011 8:00 AM 0.03 M M M M
5/22/2011 8:00 AM 0.00 0.0 M M M
5/23/2011 6:00 AM 0.39 M M M M
5/24/2011 8:00 AM 0.31 M M M M
5/25/2011 8:00 AM 0.23 M M M M
5/26/2011 8:00 AM 1.35 M M M M
5/27/2011 7:00 AM 0.08 M M M M
5/28/2011 8:00 AM 0.04 M M M M
5/29/2011 8:39 AM 0.03 M M M M
5/30/2011 8:00 AM 0.00 0.0 M M M
5/31/2011 9:00 AM 0.00 0.0 M M M
6/1/2011 6:20 AM 0.00 0.0 M M M
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 8:00 AM 0.00 0.0 M M M
6/7/2011 9:16 AM 0.00 0.0 M M M
6/8/2011 7:15 AM 0.00 0.0 M M M
6/9/2011 8:00 AM 0.00 0.0 M M M
6/10/2011 7:22 AM 0.00 0.0 M M M
6/11/2011 9:07 AM 0.95 M M M M
6/12/2011 7:46 AM 0.00 0.0 M M M
6/13/2011 6:27 AM 0.00 0.0 M M M
6/14/2011 8:00 AM 1.16 M M M M
6/15/2011 6:40 AM 0.44 M M M M
6/16/2011 8:17 AM 0.00 0.0 M M M
6/17/2011 8:27 AM 0.00 0.0 M M M
6/18/2011 8:02 AM 2.05 M M M M
6/19/2011 8:20 AM 0.38 M M M M
6/20/2011 7:30 AM 0.00 0.0 M M M
6/21/2011 8:36 AM 0.08 M M M M
6/22/2011 7:01 AM 0.01 M M M M
6/23/2011 7:26 AM 0.00 0.0 M M M
6/24/2011 7:43 AM 0.00 0.0 M M M
6/25/2011 8:20 AM 0.00 0.0 M M M
6/26/2011 8:02 AM 2.74 M M M M
6/27/2011 7:28 AM 0.50 M M M M
6/28/2011 7:22 AM 0.32 M M M M
6/29/2011 7:09 AM 0.00 0.0 M M M
6/30/2011 8:03 AM 0.00 0.0 M M M
7/1/2011 7:31 AM 0.00 0.0 M M M
7/2/2011 8:06 AM 0.00 0.0 M M M
7/3/2011 7:07 AM 0.00 0.0 M M M
7/4/2011 7:55 AM 1.42 M M M M
7/5/2011 8:36 AM 0.02 M M M M
7/6/2011 8:42 AM 0.00 0.0 M M M
7/7/2011 7:55 AM 0.00 0.0 M M M
7/8/2011 7:17 AM 0.58 M M M M
7/9/2011 8:10 AM 0.00 0.0 M M M
7/10/2011 7:11 AM 0.00 0.0 M M M
7/11/2011 7:18 AM 0.00 0.0 M M M
7/12/2011 8:07 AM 0.00 0.0 M M M
7/13/2011 7:09 AM 0.81 M M M M
7/14/2011 7:58 AM 0.00 0.0 M M M
7/15/2011 6:43 AM 0.00 0.0 M M M
7/16/2011 7:23 AM 0.00 0.0 M M M
7/17/2011 8:52 AM 0.00 0.0 M M M
7/18/2011 6:40 AM 0.00 0.0 M M M
7/19/2011 6:16 AM 0.00 0.0 M M M
7/30/2011 8:14 AM 0.00 0.0 M M M
7/31/2011 8:31 AM 0.09 M M M M
8/1/2011 7:32 AM 0.00 0.0 M M M
8/2/2011 8:15 AM 0.00 0.0 M M M
8/3/2011 7:23 AM 0.00 0.0 M M M
8/4/2011 8:02 AM 0.00 0.0 M M M
8/5/2011 7:10 AM 0.14 M M M M
8/6/2011 8:02 AM 0.11 M M M M
8/7/2011 7:52 AM T 0.0 M M M
8/8/2011 7:03 AM 0.00 0.0 M M M
8/9/2011 8:03 AM 0.00 0.0 M M M
8/10/2011 7:16 AM 0.00 0.0 M M M
8/11/2011 7:18 AM 0.08 M M M M
8/12/2011 7:42 AM 0.00 0.0 M M M
8/13/2011 8:03 AM 0.07 M M M M
8/14/2011 8:42 AM 0.00 0.0 M M M
8/15/2011 6:59 AM 0.00 0.0 M M M
8/16/2011 8:00 AM 0.00 0.0 M M M
8/17/2011 6:57 AM 0.01 M M M M
8/18/2011 8:00 AM 0.00 0.0 M M M
8/19/2011 7:32 AM 0.09 M M M M
8/20/2011 7:39 AM 0.00 0.0 M M M
8/21/2011 8:13 AM 0.06 M M M M
8/22/2011 8:05 AM 0.00 0.0 M M M
8/23/2011 8:27 AM 0.09 M M M M
8/24/2011 7:15 AM 0.00 0.0 M M M
8/25/2011 6:57 AM 0.00 0.0 M M M
8/26/2011 8:39 AM 0.00 0.0 M M M
8/27/2011 8:24 AM 0.00 0.0 M M M
8/28/2011 8:14 AM 0.00 0.0 M M M
8/29/2011 7:56 AM 0.00 0.0 M M M
8/30/2011 7:20 AM 0.00 0.0 M M M
8/31/2011 8:41 AM 0.00 0.0 M M M
9/1/2011 8:02 AM 0.00 0.0 M M M
9/2/2011 7:26 AM 0.00 0.0 M M M
9/3/2011 7:49 AM 0.00 0.0 M M M
9/4/2011 8:05 AM 0.54 M M M M Finally!! North County received some rain.
9/5/2011 9:46 AM 0.00 0.0 M M M
9/6/2011 9:32 AM 0.00 0.0 M M M
9/7/2011 7:32 AM 0.00 0.0 M M M
9/8/2011 8:01 AM 0.00 0.0 M M M
9/9/2011 8:04 AM 0.07 M M M M
9/10/2011 8:03 AM 0.13 M M M M
9/11/2011 8:03 AM T M M M M
9/12/2011 6:48 AM 0.00 0.0 M M M
9/13/2011 7:21 AM 0.00 0.0 M M M
9/14/2011 7:21 AM 0.51 M M M M
9/15/2011 7:11 AM 1.16 M M M M
9/16/2011 7:13 AM 0.00 0.0 M M M
9/17/2011 7:13 AM 0.02 M M M M
9/18/2011 7:28 AM T M M M M
9/19/2011 7:02 AM 1.39 M M M M
9/20/2011 7:23 AM T M M M M
9/21/2011 7:55 AM 0.00 0.0 M M M
9/22/2011 7:14 AM T M M M M
9/23/2011 7:08 AM 0.02 M M M M
9/24/2011 8:13 AM 0.05 M M M M
9/25/2011 7:47 AM 0.00 0.0 M M M
9/26/2011 6:25 AM 0.00 0.0 M M M
9/27/2011 8:00 AM 0.01 M M M M
9/28/2011 7:28 AM 0.00 0.0 M M M
9/29/2011 6:58 AM 0.00 0.0 M M M
9/30/2011 7:13 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/15/2010 10/18/2010 12:00 AM 4 0.00 M M
12/24/2010 12/26/2010 8:00 AM 3 2.50 3.0 0.27 Snow accummulated over the 2 days in the 4" tube and it was 2.25" T. (0.27" melted). Inverted the 4" tube and took a snow sample and melted it. It also came out to be 0.27"
1/26/2011 1/28/2011 12:00 AM 3 0.00 3.0 0.51
1/28/2011 1/30/2011 12:00 AM 3 0.00 2.0 0.57
1/31/2011 2/02/2011 1:00 PM 3 1.38 2.3 0.68 Jan. 31 day & evening: There was rain, freezing rain, sleet. Feb. 1, There was rain, freezing rain, sleet, and snow. Mostly sleet in our area. There was not a large accummulation in the North County Area.
2/25/2011 2/27/2011 12:00 AM 3 T M M All of the snow that accummulated on the ground has melted away. There was a slight mist throughout the day.
3/12/2011 3/13/2011 12:00 AM 2 0.00 0.0 0.00
3/16/2011 3/18/2011 12:00 AM 3 0.00 0.0 0.00
6/5/2011 6/06/2011 12:00 AM 2 0.00 M M
7/20/2011 7/29/2011 12:00 AM 10 0.00 M M



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