Station Overview Station Location
Station Number IL-LK-39 Latitude 42.172643
Station Name Riverwoods 0.4 ENE Longitude -87.888369
County Lake Elevation (ft) 692



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 2.96 1.28 31 1.05 11 0.23 20 1 4 0 0.0 0 0
Nov 10 3.01 1.46 30 1.35 27 0.11 3 1 6 4 0.1 1 1
Dec 10 2.23 2.26 31 1.71 29 0.55 2 1 8 7 17.3 8 25
Jan 11 1.80 0.96 30 0.96 30 0.00 0 0 10 7 12.6 10 22
Feb 11 1.72 2.46 28 2.46 18 0.00 10 0 6 2 25.9 7 18
March 11 2.34 4.95 31 2.20 26 2.75 5 1 7 3 0.8 2 0
April 11 3.49 5.18 30 5.18 28 0.00 2 0 15 4 1.0 1 0
May 11 4.07 5.91 31 5.89 28 0.02 3 1 16 2 0.0 0 0
June 11 3.93 2.29 29 2.29 27 0.00 2 1 12 1 0.0 0 0
July 11 3.72 6.81 30 6.81 30 0.00 0 0 9 0 0.0 0 0
Aug 11 4.35 5.75 30 5.75 30 0.00 0 0 10 1 0.0 0 0
Sept 11 3.37 4.36 30 4.36 28 0.00 2 1 12 2 0.0 0 0
Water Year Totals: 36.99" 43.67" 361 days 40.01" 312 3.66" 49 days 7 115 days 33 days 57.7" 29 days 66 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 **
10/2/2010 **
10/3/2010 **
10/4/2010 **
10/5/2010 **
10/6/2010 **
10/7/2010 **
10/8/2010 **
10/9/2010 **
10/10/2010 **
10/11/2010 **
10/12/2010 **
10/13/2010 **
10/14/2010 **
10/15/2010 **
10/16/2010 **
10/17/2010 **
10/18/2010 **
10/19/2010 **
10/20/2010 0.23
10/21/2010 0.00
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.46
10/25/2010 0.32
10/26/2010 0.22
10/27/2010 0.05
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 0.02
11/5/2010 0.16
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 0.13
11/13/2010 **
11/14/2010 **
11/15/2010 0.11
11/16/2010 0.00
11/17/2010 T
11/18/2010 T
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 T
11/22/2010 T
11/23/2010 0.52
11/24/2010 0.00
11/25/2010 0.12
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 0.00
11/30/2010 0.40
12/1/2010 T
12/2/2010 T
12/3/2010 0.00
12/4/2010 0.21
12/5/2010 0.15
12/6/2010 0.00
12/7/2010 T
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.06
12/11/2010 0.00
12/12/2010 M **
12/13/2010 0.55
12/14/2010 0.00
12/15/2010 0.00
12/16/2010 0.00
12/17/2010 T
12/18/2010 0.00
12/19/2010 0.00
12/20/2010 0.00
12/21/2010 0.14
12/22/2010 0.01
12/23/2010 T
12/24/2010 0.00
12/25/2010 0.22
12/26/2010 0.61
12/27/2010 T
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 T
12/31/2010 0.31
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.15
1/2/2011 0.00
1/3/2011 0.00
1/4/2011 0.00
1/5/2011 0.00
1/6/2011 T
1/7/2011
1/8/2011 0.01
1/9/2011 0.00
1/10/2011 0.00
1/11/2011 0.07
1/12/2011 0.30
1/13/2011 0.00
1/14/2011 T
1/15/2011 0.01
1/16/2011 0.00
1/17/2011 T
1/18/2011 0.32
1/19/2011 0.01
1/20/2011 0.00
1/21/2011 T
1/22/2011 0.01
1/23/2011 T
1/24/2011 0.04
1/25/2011 0.00
1/26/2011 0.00
1/27/2011 T
1/28/2011 0.04
1/29/2011 T
1/30/2011 0.00
1/31/2011 0.00
2/1/2011 0.21
2/2/2011 2.00
2/3/2011 0.02
2/4/2011 0.00
2/5/2011 0.00
2/6/2011 0.12
2/7/2011 0.02
2/8/2011 0.09
2/9/2011 0.00
2/10/2011 0.00
2/11/2011 0.00
2/12/2011 T
2/13/2011 0.00
2/14/2011 0.00
2/15/2011 0.00
2/16/2011 T
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 **
2/20/2011 **
2/21/2011 **
2/22/2011 **
2/23/2011 **
2/24/2011 **
2/25/2011 **
2/26/2011 **
2/27/2011 **
2/28/2011 **
3/1/2011 **
3/2/2011 **
3/3/2011 **
3/4/2011 **
3/5/2011 2.75
3/6/2011 0.05
3/7/2011 0.00
3/8/2011 0.00
3/9/2011 0.46
3/10/2011 0.04
3/11/2011 0.00
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 0.00
3/16/2011 T
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.00
3/21/2011 0.83
3/22/2011 0.34
3/23/2011 0.41
3/24/2011 0.07
3/25/2011 0.00
3/26/2011 T
3/27/2011 T
3/28/2011 0.00
3/29/2011 0.00
3/30/2011 0.00
3/31/2011 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2011 0.00
4/2/2011 0.14
4/3/2011 0.01
4/4/2011 0.18
4/5/2011 0.00
4/6/2011 0.00
4/7/2011 T
4/8/2011 0.80
4/9/2011 0.10
4/10/2011 0.00
4/11/2011 T
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 0.00
4/15/2011 0.00
4/16/2011 0.52
4/17/2011 0.16
4/18/2011 0.55
4/19/2011 0.05
4/20/2011 0.83
4/21/2011 T
4/22/2011 0.17
4/23/2011 0.51
4/24/2011 0.00
4/25/2011 T
4/26/2011 0.75
4/27/2011 0.12
4/28/2011 0.29
4/29/2011 **
4/30/2011 **
5/1/2011 **
5/2/2011 **
5/3/2011 0.02
5/4/2011 0.00
5/5/2011 0.00
5/6/2011 0.00
5/7/2011 T
5/8/2011 0.04
5/9/2011 0.00
5/10/2011 T
5/11/2011 0.00
5/12/2011 0.42
5/13/2011 0.00
5/14/2011 0.05
5/15/2011 0.76
5/16/2011 0.03
5/17/2011 0.00
5/18/2011 0.03
5/19/2011 0.02
5/20/2011 0.00
5/21/2011 0.00
5/22/2011 0.03
5/23/2011 0.61
5/24/2011 0.01
5/25/2011 0.03
5/26/2011 2.17
5/27/2011 0.14
5/28/2011 0.04
5/29/2011 0.01
5/30/2011 1.50
5/31/2011 0.00
6/1/2011 0.04
6/2/2011 0.00
6/3/2011
6/4/2011 0.00
6/5/2011 0.00
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.75
6/10/2011 0.63
6/11/2011 0.02
6/12/2011 0.01
6/13/2011 0.00
6/14/2011
6/15/2011 0.22
6/16/2011 0.28
6/17/2011 0.00
6/18/2011 0.00
6/19/2011 0.00
6/20/2011 T
6/21/2011 0.06
6/22/2011 0.20
6/23/2011 0.06
6/24/2011 0.01
6/25/2011 **
6/26/2011 0.00 0.00
6/27/2011 0.00
6/28/2011 0.01
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 0.00
7/5/2011 0.00
7/6/2011 0.00
7/7/2011 0.00
7/8/2011 0.00
7/9/2011 0.00
7/10/2011
7/11/2011 0.00
7/12/2011 0.28
7/13/2011 0.00
7/14/2011 0.00
7/15/2011 0.00
7/16/2011 0.00
7/17/2011 0.00
7/18/2011 0.01
7/19/2011 0.00
7/20/2011 0.17
7/21/2011 0.00
7/22/2011 0.08
7/23/2011 4.77
7/24/2011 0.09
7/25/2011 0.09
7/26/2011 0.00
7/27/2011 0.00
7/28/2011 0.96
7/29/2011 0.36
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011
8/3/2011 1.21
8/4/2011 0.00
8/5/2011 0.00
8/6/2011 0.03
8/7/2011 T
8/8/2011 1.57
8/9/2011 0.33
8/10/2011 0.00
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 0.01
8/14/2011 1.00
8/15/2011 0.00
8/16/2011 0.00
8/17/2011 0.00
8/18/2011 0.12
8/19/2011 0.00
8/20/2011 0.00
8/21/2011 0.89
8/22/2011 0.00
8/23/2011 0.00
8/24/2011 0.48
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 0.11
9/1/2011 0.00
9/2/2011 0.00
9/3/2011 T
9/4/2011 0.06
9/5/2011 0.00
9/6/2011 0.00
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 0.04
9/10/2011 0.02
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 T
9/16/2011 0.00
9/17/2011 0.00
9/18/2011 0.01
9/19/2011 0.79
9/20/2011 0.00
9/21/2011 0.00
9/22/2011 **
9/23/2011 0.00
9/24/2011 0.09
9/25/2011 0.69
9/26/2011 1.23
9/27/2011 0.37
9/28/2011 0.87
9/29/2011 0.05
9/30/2011 0.14



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/21/2010 7:00 AM 0.00 0.0 M M M
10/22/2010 7:00 AM 0.00 0.0 M M M
10/23/2010 7:00 AM 0.00 0.0 M M M
10/24/2010 7:00 AM 0.46 M M M M
10/25/2010 7:00 AM 0.32 M M M M
10/26/2010 7:00 AM 0.22 M M M M
10/27/2010 7:00 AM 0.05 M M M M
10/28/2010 7:00 AM 0.00 0.0 M M M
10/29/2010 7:00 AM 0.00 0.0 M M M
10/30/2010 7:00 AM 0.00 0.0 M M M
10/31/2010 7:00 AM 0.00 0.0 M M M
11/1/2010 7:00 AM 0.00 0.0 M M M
11/2/2010 7:00 AM 0.00 0.0 M M M
11/3/2010 7:00 AM 0.00 0.0 M M M
11/4/2010 7:00 AM 0.02 M M M M
11/5/2010 7:00 AM 0.16 0.1 M 0.3 M Ice pellets rather than snow fell for a short while in the afternoon. They disappeared after 1/2 hour due to the ground temperatures. First winter precipitation of the season!! A very light sprinkle of rain (0.01") fell later in the day.
11/6/2010 7:00 AM 0.00 0.0 M M M
11/7/2010 7:00 AM 0.00 0.0 M M M
11/8/2010 7:00 AM 0.00 0.0 M M M
11/9/2010 7:00 AM 0.00 0.0 M M M
11/10/2010 7:00 AM 0.00 0.0 M M M
11/11/2010 7:00 AM 0.00 0.0 M M M
11/12/2010 7:00 AM 0.13 M M M M
11/16/2010 7:00 AM 0.00 0.0 M M M
11/17/2010 7:00 AM T M M M M
11/18/2010 7:00 AM T M M M M
11/19/2010 7:00 AM 0.00 0.0 M M M
11/20/2010 7:00 AM 0.00 0.0 M M M
11/21/2010 7:00 AM T 0.0 M M M
11/22/2010 7:00 AM T M M M M
11/23/2010 7:00 AM 0.52 M M M M
11/24/2010 7:00 AM 0.00 0.0 M M M
11/25/2010 7:00 AM 0.12 M M M M
11/26/2010 7:00 AM 0.00 0.0 M M M
11/27/2010 7:00 AM 0.00 0.0 M M M
11/28/2010 7:00 AM 0.00 0.0 M M M
11/29/2010 7:00 AM 0.00 0.0 M M M
11/30/2010 7:00 AM 0.40 M M M M
12/1/2010 7:00 AM T T M T M The first snow flurries of the season fell last evening but hardly amounted to much.
12/2/2010 7:00 AM T T M T M
12/3/2010 7:00 AM 0.00 0.0 M M M
12/4/2010 8:00 AM 0.21 2.5 M 2.5 M Snow continues to fall here
12/5/2010 7:00 AM 0.15 2.2 0.15 4.0 M
12/6/2010 7:00 AM 0.00 0.0 M M M
12/7/2010 7:00 AM T M M 3.5 M
12/8/2010 7:00 AM 0.00 0.0 M 3.0 M
12/9/2010 7:00 AM 0.00 0.0 M 2.8 M
12/10/2010 7:00 AM 0.06 0.5 M 3.2 M
12/11/2010 7:00 AM 0.00 0.0 M 1.5 M
12/12/2010 8:00 AM M M M 1.5 M Light blowing snow with varying force winds continues here at the present time.
12/14/2010 7:00 AM 0.00 0.0 M 1.0 M
12/15/2010 7:00 AM 0.00 0.0 M 1.0 M
12/16/2010 7:00 AM 0.00 0.0 M 1.0 M
12/17/2010 7:00 AM T 0.2 T 1.2 M A very light ,fluffy snow fell last evening.
12/18/2010 7:00 AM 0.00 0.0 M 1.0 M
12/19/2010 7:00 AM 0.00 0.0 M 1.0 M
12/20/2010 7:00 AM 0.00 0.0 M 1.0 M
12/21/2010 7:00 AM 0.14 2.7 0.21 3.7 M The overnight snow which fell is covered by a thin frozen crust this morning
12/22/2010 7:00 AM 0.01 0.2 M 3.0 M Precipitation last night fell as a drizzle which turned to ice on contact with the ground.
12/23/2010 7:00 AM T T M 3.0 M
12/24/2010 7:00 AM 0.00 0.0 M 2.4 M
12/25/2010 7:00 AM 0.22 2.0 M 4.5 M
12/26/2010 7:00 AM 0.61 7.0 M 10.5 M
12/27/2010 7:00 AM T T M 9.0 M
12/28/2010 7:00 AM 0.00 0.0 M 8.0 M
12/29/2010 7:00 AM 0.00 0.0 M 7.5 M
12/30/2010 7:00 AM T M M 3.2 M
12/31/2010 8:00 AM 0.31 M M T M The warm weather and rain has washed away virtually all of the snow except for that under some trees and where the remains of snow plowing still exist.
1/1/2011 7:00 AM 0.15 M M M M Snow's gone!!
1/2/2011 7:00 AM 0.00 0.0 M M M
1/3/2011 7:00 AM 0.00 0.0 M M M
1/4/2011 7:00 AM 0.00 0.0 M M M
1/5/2011 7:00 AM 0.00 0.0 M M M
1/6/2011 7:00 AM T T M M M A few very light, fine snowflurries are coming down at present.
1/8/2011 7:00 AM 0.01 0.3 M 0.3 M
1/9/2011 7:00 AM 0.00 0.0 M T M
1/10/2011 7:00 AM 0.00 0.0 M T M
1/11/2011 7:00 AM 0.07 1.5 M 1.5 M
1/12/2011 7:00 AM 0.30 5.3 M 5.5 M
1/13/2011 7:00 AM 0.00 0.0 M 4.5 M
1/14/2011 7:00 AM T T M 3.7 M
1/15/2011 7:00 AM 0.01 0.2 M 3.4 M
1/16/2011 7:00 AM 0.00 0.0 M 3.0 M
1/17/2011 6:00 AM T T M 2.7 M
1/18/2011 7:00 AM 0.32 1.4 M 4.0 M
1/19/2011 7:00 AM 0.01 0.2 M 3.9 M
1/20/2011 7:00 AM 0.00 0.0 M 3.5 M
1/21/2011 7:00 AM T T M 3.5 M
1/22/2011 7:00 AM 0.01 1.0 M 4.5 M The lighest, fluffiest snow fell overnight.
1/23/2011 7:00 AM T 0.5 M 4.0 M
1/24/2011 7:00 AM 0.04 1.4 M 4.5 M
1/25/2011 7:00 AM 0.00 0.0 M 4.0 M
1/26/2011 7:00 AM 0.00 0.0 M 3.9 M
1/27/2011 7:00 AM T T M 3.9 M
1/28/2011 7:00 AM 0.04 0.8 M 4.5 M
1/29/2011 7:00 AM T T M 4.3 M
1/30/2011 7:00 AM 0.00 0.0 M 3.7 M
1/31/2011 7:00 AM 0.00 0.0 M 3.7 M
2/1/2011 7:00 AM 0.21 1.2 M 4.2 M
2/2/2011 8:00 AM 2.00 18.0 M 21.0 M Somewhat in excess of 2" of precipitation has fallen as snow. I emptied my gauge 2x yesterday p.m. and it still overflowed the third time with fallen snow.
2/3/2011 7:00 AM 0.02 0.8 M 17.0 M
2/4/2011 7:00 AM 0.00 0.0 M 15.0 M
2/5/2011 7:00 AM 0.00 0.0 M 14.0 M
2/6/2011 8:00 AM 0.12 2.0 M 15.5 M
2/7/2011 7:00 AM 0.02 0.9 M 14.5 M
2/8/2011 7:00 AM 0.09 2.8 M 17.0 M
2/9/2011 7:00 AM 0.00 0.0 M 14.5 M
2/10/2011 7:00 AM 0.00 0.0 M 14.0 M
2/11/2011 6:00 AM 0.00 0.0 M 14.0 M
2/12/2011 7:00 AM T 0.2 M 13.5 M
2/13/2011 7:00 AM 0.00 0.0 M 13.0 M
2/14/2011 7:00 AM 0.00 0.0 M 10.0 M
2/15/2011 7:00 AM 0.00 0.0 M 9.0 M
2/16/2011 7:00 AM T 0.0 M 8.5 M
2/17/2011 7:00 AM 0.00 0.0 M 5.0 M
2/18/2011 7:00 AM 0.00 0.0 M 1.0 M
3/6/2011 7:00 AM 0.05 0.4 M M M
3/7/2011 7:00 AM 0.00 0.0 M M M
3/8/2011 7:00 AM 0.00 0.0 M M M
3/9/2011 7:00 AM 0.46 M M M M
3/10/2011 7:00 AM 0.04 T M M M
3/11/2011 7:00 AM 0.00 0.0 M M M
3/12/2011 7:00 AM 0.00 0.0 M M M
3/13/2011 7:00 AM 0.00 0.0 M M M
3/14/2011 7:00 AM 0.00 0.0 M M M
3/15/2011 7:00 AM 0.00 0.0 M M M
3/16/2011 7:00 AM T M M M M
3/17/2011 7:00 AM 0.00 0.0 M M M
3/18/2011 7:00 AM 0.00 0.0 M M M
3/19/2011 7:00 AM 0.00 0.0 M M M
3/20/2011 7:00 AM 0.00 0.0 M M M
3/21/2011 7:00 AM 0.83 M M M M 0.80" of this total rainfall yesterday fell between 10 a.m. and 5 p.m. The remaining 0.03" fell around 10 p.m. A small amount of pea sized hail fell late in the afternoon.
3/22/2011 7:00 AM 0.34 M M M M
3/23/2011 7:00 AM 0.41 M M M M
3/24/2011 7:00 AM 0.07 0.4 M M M Little of the snow is sticking to the ground...it's mostly on grass, cars, etc.
3/25/2011 7:00 AM 0.00 0.0 M M M
3/26/2011 7:00 AM T M M M M
3/27/2011 7:00 AM T T M M M
3/28/2011 7:00 AM 0.00 0.0 M M M
3/29/2011 7:00 AM 0.00 0.0 M M M
3/30/2011 7:00 AM 0.00 0.0 M M M
3/31/2011 7:00 AM 0.00 0.0 M M M
4/1/2011 7:00 AM 0.00 0.0 M M M
4/2/2011 7:00 AM 0.14 M M M M
4/3/2011 7:00 AM 0.01 M M M M
4/4/2011 7:00 AM 0.18 M M M M
4/5/2011 5:00 AM 0.00 0.0 M M M
4/6/2011 7:00 AM 0.00 0.0 M M M
4/7/2011 7:00 AM T M M M M
4/8/2011 7:00 AM 0.80 M M M M
4/9/2011 7:00 AM 0.10 M M M M
4/10/2011 7:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM T M M M M
4/12/2011 7:00 AM 0.00 0.0 M M M
4/13/2011 7:00 AM 0.00 0.0 M M M
4/14/2011 7:00 AM 0.00 0.0 M M M
4/15/2011 6:00 AM 0.00 0.0 M M M
4/16/2011 7:00 AM 0.52 M M M M
4/17/2011 7:00 AM 0.16 M M M M
4/18/2011 6:00 AM 0.55 1.0 M M M
4/19/2011 7:00 AM 0.05 M M M M
4/20/2011 7:00 AM 0.83 M M M M A mist continues to fall at this hour.
4/21/2011 7:00 AM T M M M M
4/22/2011 7:00 AM 0.17 M M M M
4/23/2011 7:00 AM 0.51 M M M M
4/24/2011 7:00 AM 0.00 0.0 M M M
4/25/2011 5:30 AM T M M M M It has just started to rain a bit here this last hour.
4/26/2011 7:00 AM 0.75 M M M M A mist continues at this time.
4/27/2011 7:00 AM 0.12 M M M M
4/28/2011 4:00 AM 0.29 M 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 7:00 AM 0.00 0.0 M M M
5/7/2011 7:00 AM T M M M M
5/8/2011 7:00 AM 0.04 M M M M
5/9/2011 7:00 AM 0.00 0.0 M M M
5/10/2011 7:00 AM T M M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 6:00 AM 0.42 M M M M
5/13/2011 7:00 AM 0.00 0.0 M M M
5/14/2011 7:00 AM 0.05 M M M M
5/15/2011 7:00 AM 0.76 M M M M
5/16/2011 7:00 AM 0.03 M M M M
5/17/2011 7:00 AM 0.00 0.0 M M M
5/18/2011 7:00 AM 0.03 M M M M It is drizzling here at the present.
5/19/2011 7:00 AM 0.02 M M M M
5/20/2011 7:00 AM 0.00 0.0 M M M
5/21/2011 7:00 AM 0.00 0.0 M M M
5/22/2011 7:00 AM 0.03 M M M M
5/23/2011 7:00 AM 0.61 M M M M
5/24/2011 7:00 AM 0.01 M M M M
5/25/2011 7:00 AM 0.03 M M M M
5/26/2011 7:00 AM 2.17 M M M M
5/27/2011 7:00 AM 0.14 M M M M
5/28/2011 7:00 AM 0.04 M M M M
5/29/2011 7:00 AM 0.01 M M M M
5/30/2011 7:00 AM 1.50 M M M M
5/31/2011 7:00 AM 0.00 0.0 M M M
6/1/2011 7:00 AM 0.04 M M M M
6/2/2011 6:00 AM 0.00 0.0 M M M
6/4/2011 7:00 AM 0.00 0.0 M M M
6/5/2011 7:00 AM 0.00 0.0 M M M
6/6/2011 7:00 AM 0.00 0.0 M M M
6/7/2011 7:00 AM 0.00 0.0 M M M
6/8/2011 7:00 AM 0.00 0.0 M M M
6/9/2011 7:00 AM 0.75 M M M M
6/10/2011 7:00 AM 0.63 M M M M
6/11/2011 7:00 AM 0.02 M M M M
6/12/2011 7:00 AM 0.01 M M M M
6/13/2011 7:00 AM 0.00 0.0 M M M
6/15/2011 7:00 AM 0.22 M M M M
6/16/2011 7:00 AM 0.28 M M M M
6/17/2011 7:00 AM 0.00 0.0 M M M
6/18/2011 7:00 AM 0.00 0.0 M M M
6/19/2011 7:00 AM 0.00 0.0 M M M
6/20/2011 7:00 AM T M M M M
6/21/2011 7:00 AM 0.06 M M M M
6/22/2011 7:00 AM 0.20 M M M M Severe wind damage to trees. For example a 12 dia. healthy ash tree was snapped in two, 15 ft. above the ground, crashing into my yard from my neighbor's. Several other trees sustained significant damage.
6/23/2011 7:00 AM 0.06 M M M M
6/24/2011 7:00 AM 0.01 M M M M
6/26/2011 7:00 AM 0.00 0.0 M M M
6/27/2011 7:00 AM 0.00 0.0 M M M
6/28/2011 7:00 AM 0.01 M M M M
6/29/2011 7:00 AM 0.00 0.0 M M M
6/30/2011 7:00 AM 0.00 0.0 M M M
7/1/2011 7:00 AM 0.00 0.0 M M M
7/2/2011 7:00 AM 0.00 0.0 M M M
7/3/2011 7:00 AM 0.00 0.0 M M M
7/4/2011 7:00 AM 0.00 0.0 M M M
7/5/2011 7:00 AM 0.00 0.0 M M M
7/6/2011 7:00 AM 0.00 0.0 M M M
7/7/2011 7:00 AM 0.00 0.0 M M M
7/8/2011 7:00 AM 0.00 0.0 M M M
7/9/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M
7/12/2011 7:00 AM 0.28 M M M M We experienced severe wind gusts during the rain which resulted in some minor damage to trees, but not as bad as we had here last month.
7/13/2011 7:00 AM 0.00 0.0 M M M
7/14/2011 7:00 AM 0.00 0.0 M M M
7/15/2011 7:00 AM 0.00 0.0 M M M
7/16/2011 7:00 AM 0.00 0.0 M M M
7/17/2011 7:00 AM 0.00 0.0 M M M
7/18/2011 7:00 AM 0.01 M M M M
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.17 M M M M
7/21/2011 7:00 AM 0.00 0.0 M M M
7/22/2011 7:00 AM 0.08 M M M M
7/23/2011 7:00 AM 4.77 M M M M
7/24/2011 7:00 AM 0.09 M M M M
7/25/2011 7:00 AM 0.09 M M M M
7/26/2011 7:00 AM 0.00 0.0 M M M
7/27/2011 7:00 AM 0.00 0.0 M M M
7/28/2011 7:00 AM 0.96 M M M M
7/29/2011 7:00 AM 0.36 M M M M
7/30/2011 7:00 AM 0.00 0.0 M M M
7/31/2011 7:00 AM 0.00 0.0 M M M
8/1/2011 7:00 AM 0.00 0.0 M M M
8/3/2011 7:00 AM 1.21 M M M M
8/4/2011 7:00 AM 0.00 0.0 M M M
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.03 M M M M
8/7/2011 7:00 AM T M M M M
8/8/2011 7:00 AM 1.57 M M M M
8/9/2011 7:00 AM 0.33 M M M M
8/10/2011 7:00 AM 0.00 0.0 M M M
8/11/2011 7:00 AM 0.00 0.0 M M M
8/12/2011 7:00 AM 0.00 0.0 M M M
8/13/2011 7:00 AM 0.01 M M M M
8/14/2011 7:00 AM 1.00 M M M M
8/15/2011 7:00 AM 0.00 0.0 M M M
8/16/2011 7:00 AM 0.00 0.0 M M M
8/17/2011 7:00 AM 0.00 0.0 M M M
8/18/2011 7:00 AM 0.12 M M M M
8/19/2011 7:00 AM 0.00 0.0 M M M
8/20/2011 7:00 AM 0.00 0.0 M M M
8/21/2011 7:00 AM 0.89 M M M M
8/22/2011 7:00 AM 0.00 0.0 M M M
8/23/2011 7:00 AM 0.00 0.0 M M M
8/24/2011 7:00 AM 0.48 M M M M
8/25/2011 7:00 AM 0.00 0.0 M M M
8/26/2011 7:00 AM 0.00 0.0 M M M
8/27/2011 7:00 AM 0.00 0.0 M M M
8/28/2011 7:00 AM 0.00 0.0 M M M
8/29/2011 7:00 AM 0.00 0.0 M M M
8/30/2011 7:00 AM 0.00 0.0 M M M
8/31/2011 7:00 AM 0.11 M M M M
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.00 0.0 M M M
9/3/2011 7:00 AM T M M M M
9/4/2011 7:00 AM 0.06 M M M M
9/5/2011 7:00 AM 0.00 0.0 M M M
9/6/2011 7:00 AM 0.00 0.0 M M M
9/7/2011 7:00 AM 0.00 0.0 M M M
9/8/2011 7:00 AM 0.00 0.0 M M M
9/9/2011 7:00 AM 0.04 M M M M
9/10/2011 7:00 AM 0.02 M M M M
9/11/2011 7:00 AM 0.00 0.0 M M M
9/12/2011 7:00 AM 0.00 0.0 M M M
9/13/2011 7:00 AM 0.00 0.0 M M M
9/14/2011 7:00 AM 0.00 0.0 M M M
9/15/2011 7:00 AM T M M M M
9/16/2011 7:00 AM 0.00 0.0 M M M
9/17/2011 7:00 AM 0.00 0.0 M M M
9/18/2011 8:00 AM 0.01 M M M M
9/19/2011 7:00 AM 0.79 M M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.00 0.0 M M M
9/24/2011 7:00 AM 0.09 M M M M
9/25/2011 7:00 AM 0.69 M M M M
9/26/2011 7:00 AM 1.23 M M M M
9/27/2011 7:00 AM 0.37 M M M M
9/28/2011 7:00 AM 0.87 M M M M
9/29/2011 7:00 AM 0.05 M M M M
9/30/2011 7:00 AM 0.14 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/1/2010 10/20/2010 7:00 AM 20 0.23 M M
11/13/2010 11/15/2010 7:00 AM 3 0.11 M M
12/12/2010 12/13/2010 7:00 AM 2 0.55 1.8 M
2/19/2011 3/05/2011 7:00 AM 15 2.75 M M
4/29/2011 5/03/2011 7:00 AM 5 0.02 M M
6/25/2011 6/26/2011 12:00 AM 2 0.00 M M
9/22/2011 9/23/2011 7:00 AM 2 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
5/22/2011 3:20 PM The hail fell towards the end of a 15 min rainstorm during which time 0.09" of precipitation was measured at this site. Some brief thunder was also heard at this time. 3/8" 1/4" Pea Size NA Mixed|Clear Ice|White Ice 2 1min no damage Continuous True Same time as rain After smaller hail