Station Overview Station Location
Station Number IL-CK-107 Latitude 42.066893
Station Name Evanston 1.4 N Longitude -87.689812
County Cook Elevation (ft) 627



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 3.06 1.46 31 1.46 31 0.00 0 0 7 3 0.0 0 0
Nov 10 3.06 3.22 30 1.08 27 2.14 3 1 7 1 0.0 0 0
Dec 10 2.29 2.04 31 0.02 22 2.02 9 4 1 5 0.4 1 18
Jan 11 1.89 1.53 31 0.76 30 0.77 1 1 6 9 5.5 4 14
Feb 11 1.72 2.33 28 2.33 28 0.00 0 0 5 1 23.6 4 7
March 11 2.37 1.73 31 1.73 31 0.00 0 0 8 2 0.0 0 0
April 11 3.49 5.44 30 5.44 30 0.00 0 0 19 1 0.0 0 0
May 11 4.00 6.70 31 5.85 29 0.85 2 1 14 4 0.0 0 0
June 11 3.90 2.59 30 2.59 25 0.00 5 0 12 1 0.0 0 0
July 11 3.67 7.14 31 6.66 28 0.48 3 1 8 2 0.0 0 0
Aug 11 4.44 4.60 31 2.69 23 1.91 8 1 6 1 0.0 0 0
Sept 11 3.38 4.05 30 4.05 30 0.00 0 0 15 1 0.0 0 0
Water Year Totals: 37.27" 42.83" 365 days 34.66" 334 8.17" 31 days 9 108 days 31 days 29.5" 9 days 39 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 0.10
10/3/2010 0.45
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 T
10/13/2010 0.00
10/14/2010 0.33
10/15/2010 T
10/16/2010 0.00
10/17/2010 0.00
10/18/2010 0.00
10/19/2010 0.00
10/20/2010 0.00
10/21/2010 T
10/22/2010 0.00
10/23/2010 0.00
10/24/2010 0.06
10/25/2010 0.06
10/26/2010 0.15
10/27/2010 0.31
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 0.04
11/5/2010 0.02
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 0.00
11/14/2010 0.07
11/15/2010 0.10
11/16/2010 0.00
11/17/2010 0.00
11/18/2010 T
11/19/2010 0.00
11/20/2010 0.00
11/21/2010 **
11/22/2010 **
11/23/2010 2.14
11/24/2010 0.00
11/25/2010 0.17
11/26/2010 0.00
11/27/2010 0.00
11/28/2010 0.00
11/29/2010 0.00
11/30/2010 0.55
12/1/2010 T
12/2/2010 T
12/3/2010 0.00
12/4/2010 **
12/5/2010 0.51
12/6/2010 0.00
12/7/2010 0.00
12/8/2010 0.00
12/9/2010 0.00
12/10/2010 0.02
12/11/2010 0.00
12/12/2010 **
12/13/2010 0.61
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 **
12/22/2010 0.19
12/23/2010 0.00
12/24/2010 0.00
12/25/2010 **
12/26/2010 0.71
12/27/2010 T
12/28/2010 0.00
12/29/2010 0.00
12/30/2010 T
12/31/2010 **
Day of YearDaily PrcpMultiday Prcp
1/1/2011 0.77
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 T
1/9/2011 0.00
1/10/2011 0.00
1/11/2011 0.02
1/12/2011 0.37
1/13/2011 T
1/14/2011 0.00
1/15/2011 T
1/16/2011 0.00
1/17/2011 T
1/18/2011 0.31
1/19/2011 0.02
1/20/2011 T
1/21/2011 0.00
1/22/2011 0.01
1/23/2011 0.00
1/24/2011 0.00
1/25/2011 0.00
1/26/2011 T
1/27/2011 T
1/28/2011 0.03
1/29/2011 0.00
1/30/2011 0.00
1/31/2011 T
2/1/2011 0.22
2/2/2011 1.92
2/3/2011 0.00
2/4/2011 0.00
2/5/2011 0.00
2/6/2011 0.16
2/7/2011 0.01
2/8/2011 0.00
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 0.00
2/17/2011 0.00
2/18/2011 0.00
2/19/2011 0.00
2/20/2011 0.02
2/21/2011 0.00
2/22/2011 0.00
2/23/2011 0.00
2/24/2011 0.00
2/25/2011 0.00
2/26/2011 0.00
2/27/2011 0.00
2/28/2011 0.00
3/1/2011 0.00
3/2/2011 0.00
3/3/2011 0.00
3/4/2011 0.02
3/5/2011 0.00
3/6/2011 0.00
3/7/2011 0.00
3/8/2011 0.00
3/9/2011 0.34
3/10/2011 0.03
3/11/2011 0.00
3/12/2011 0.00
3/13/2011 0.00
3/14/2011 0.00
3/15/2011 T
3/16/2011 0.00
3/17/2011 0.00
3/18/2011 0.00
3/19/2011 0.00
3/20/2011 0.02
3/21/2011 0.41
3/22/2011 0.34
3/23/2011 0.54
3/24/2011 0.03
3/25/2011 0.00
3/26/2011 T
3/27/2011 0.00
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 0.16
4/3/2011 0.02
4/4/2011 0.23
4/5/2011 0.03
4/6/2011 T
4/7/2011 0.02
4/8/2011 0.70
4/9/2011 0.08
4/10/2011 0.00
4/11/2011 0.00
4/12/2011 0.00
4/13/2011 0.00
4/14/2011 0.00
4/15/2011 0.00
4/16/2011 0.38
4/17/2011 0.10
4/18/2011 0.51
4/19/2011 0.05
4/20/2011 0.89
4/21/2011 0.00
4/22/2011 0.33
4/23/2011 0.34
4/24/2011 0.00
4/25/2011 0.02
4/26/2011 1.13
4/27/2011 0.10
4/28/2011 0.27
4/29/2011 0.08
4/30/2011 0.00
5/1/2011 0.00
5/2/2011 0.00
5/3/2011 0.00
5/4/2011 T
5/5/2011 0.00
5/6/2011 0.04
5/7/2011 T
5/8/2011 0.02
5/9/2011 T
5/10/2011 0.00
5/11/2011 0.00
5/12/2011 0.47
5/13/2011 0.00
5/14/2011 **
5/15/2011 0.85
5/16/2011 0.10
5/17/2011 0.00
5/18/2011 0.05
5/19/2011 0.03
5/20/2011 0.00
5/21/2011 0.00
5/22/2011 0.03
5/23/2011 0.62
5/24/2011 T
5/25/2011 0.05
5/26/2011 2.41
5/27/2011 0.21
5/28/2011 0.04
5/29/2011 0.11
5/30/2011 1.67
5/31/2011 0.00
6/1/2011 0.13
6/2/2011 0.00
6/3/2011 0.00
6/4/2011 0.00
6/5/2011 0.02
6/6/2011 0.00
6/7/2011 0.00
6/8/2011 0.00
6/9/2011 0.46
6/10/2011 0.46
6/11/2011 0.07
6/12/2011 0.02
6/13/2011 0.00
6/14/2011 0.00
6/15/2011 0.29
6/16/2011 0.74
6/17/2011 0.00
6/18/2011 0.00
6/19/2011 0.00
6/20/2011 0.03
6/21/2011 0.19
6/22/2011 0.16
6/23/2011 0.02
6/24/2011 T
6/25/2011 0.00
6/26/2011 **
6/27/2011 **
6/28/2011 **
6/29/2011 **
6/30/2011 **
Day of YearDaily PrcpMultiday Prcp
7/1/2011 **
7/2/2011 **
7/3/2011 0.48
7/4/2011 0.00
7/5/2011 0.00
7/6/2011 T
7/7/2011 0.00
7/8/2011 0.00
7/9/2011 0.00
7/10/2011 0.00
7/11/2011 0.00
7/12/2011 0.43
7/13/2011 T
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 0.23
7/21/2011 0.00
7/22/2011 0.15
7/23/2011 3.85
7/24/2011 0.12
7/25/2011 0.12
7/26/2011 0.00
7/27/2011 0.00
7/28/2011 0.93
7/29/2011 0.83
7/30/2011 0.00
7/31/2011 0.00
8/1/2011 0.00
8/2/2011 0.00
8/3/2011 1.10
8/4/2011 0.00
8/5/2011 0.00
8/6/2011 0.30
8/7/2011 0.00
8/8/2011 0.48
8/9/2011 0.37
8/10/2011 0.00
8/11/2011 0.00
8/12/2011 0.00
8/13/2011 T
8/14/2011 **
8/15/2011 **
8/16/2011 **
8/17/2011 **
8/18/2011 **
8/19/2011 **
8/20/2011 **
8/21/2011 1.91
8/22/2011 0.00
8/23/2011 0.00
8/24/2011 0.38
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 0.06
9/1/2011 0.00
9/2/2011 0.03
9/3/2011 0.00
9/4/2011 0.30
9/5/2011 0.06
9/6/2011 0.00
9/7/2011 0.00
9/8/2011 0.00
9/9/2011 T
9/10/2011 0.23
9/11/2011 0.00
9/12/2011 0.00
9/13/2011 0.00
9/14/2011 0.00
9/15/2011 0.08
9/16/2011 0.00
9/17/2011 0.00
9/18/2011 0.00
9/19/2011 1.04
9/20/2011 0.00
9/21/2011 0.02
9/22/2011 0.00
9/23/2011 0.03
9/24/2011 0.05
9/25/2011 0.19
9/26/2011 0.99
9/27/2011 0.23
9/28/2011 0.20
9/29/2011 0.45
9/30/2011 0.15



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2010 7:00 AM 0.00 0.0 M M M
10/2/2010 7:00 AM 0.10 M M M M
10/3/2010 7:00 AM 0.45 M M M M All lake effect weather. During the afternoon, you could watch the wall of clouds drift in and out as the rain fell and stopped. Very light and steady rain.
10/4/2010 7:00 AM 0.00 0.0 M M M Overnight low temp on a Taylor HI/LOW mercury was 48 deg.
10/5/2010 7:00 AM 0.00 0.0 M M M
10/6/2010 7:00 AM 0.00 0.0 M M M
10/7/2010 7:00 AM 0.00 0.0 M M M Cool and crisp, just like it is supposed to be in the Fall.
10/8/2010 7:00 AM 0.00 0.0 M M M
10/9/2010 7:00 AM 0.00 0.0 M M M
10/10/2010 7:00 AM 0.00 0.0 M M M Beautiful morning for a marathon!
10/11/2010 7:00 AM 0.00 0.0 M M M
10/12/2010 7:00 AM T M M M M Lots of condensation this morning, moderate fog yesterday evening along the lakefront.
10/13/2010 7:00 AM 0.00 0.0 M M M
10/14/2010 7:00 AM 0.33 M M M M Heavy waves of rain only in the morning - 9:00 AM through 10:00 AM
10/15/2010 7:00 AM T M M M M Light drizzle around 7:20 PM last night. Just for a few minutes. Not enough to wet the windshield.
10/16/2010 7:00 AM 0.00 0.0 M M M
10/17/2010 7:00 AM 0.00 0.0 M M M
10/18/2010 7:00 AM 0.00 0.0 M M M
10/19/2010 7:00 AM 0.00 0.0 M M M
10/20/2010 7:00 AM 0.00 0.0 M M M
10/21/2010 7:00 AM T M M M M Just a sprinkle on the cars after 22:00
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 0.06 M M M M
10/25/2010 7:00 AM 0.06 M M M M
10/26/2010 7:00 AM 0.15 M M M M Rain began around 6:20 this morning, still raining now. Windy but not that bad yet. Time will tell.
10/27/2010 7:00 AM 0.31 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 Measured down to 34 deg F on the Taylor mercury high-low thermometer.
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 0.04 M M M M Overnight low was 36 deg F - Taylor high/low mercury thermometer
11/5/2010 7:00 AM 0.02 M M M M
11/6/2010 7:00 AM 0.00 0.0 M M M Low of 28 deg F. on Taylor hi-low mercury.
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
11/13/2010 7:00 AM 0.00 0.0 M M M
11/14/2010 7:00 AM 0.07 M M M M
11/15/2010 7:00 AM 0.10 M M M M Low temp of 35 deg F on Taylor Mercury High/Low. Frost on all the windows @ 5:15 AM, and lots of condensation.
11/16/2010 7:00 AM 0.00 0.0 M M M Overnight Low: 36 Deg F on the Taylor Mercury High-Low.
11/17/2010 7:00 AM 0.00 0.0 M M M
11/18/2010 7:00 AM T M M M M Misting last evening around 5:30 to 6:30 PM. Yesterday high of 54 deg F, this morning low of 33 deg F, on Taylor Mercury high low.
11/19/2010 7:00 AM 0.00 0.0 M M M Low of 31 deg F on Taylor Mercury High/LOW
11/20/2010 7:00 AM 0.00 0.0 M M M
11/24/2010 7:00 AM 0.00 0.0 M M M
11/25/2010 7:00 AM 0.17 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 0.55 M M M M
12/1/2010 7:00 AM T T T M M
12/2/2010 7:00 AM T T 0.01 M M
12/3/2010 7:00 AM 0.00 0.0 M M M
12/6/2010 7:00 AM 0.00 0.0 M M M Low of 10 deg F on Taylor mercury high/low
12/7/2010 7:00 AM 0.00 0.0 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 3.0 M
12/10/2010 7:00 AM 0.02 0.4 0.02 2.5 M
12/11/2010 7:00 AM 0.00 0.0 M 2.0 M
12/14/2010 7:00 AM 0.00 0.0 M 1.0 M +6 Deg F for the low this morning on Taylor Mercury High/Low
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 T T 1.0 M
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
12/23/2010 7:00 AM 0.00 0.0 M 2.0 M
12/24/2010 7:00 AM 0.00 0.0 M 2.0 M
12/27/2010 7:00 AM T M M 11.0 M
12/28/2010 7:00 AM 0.00 0.0 M 10.5 M
12/29/2010 7:00 AM 0.00 0.0 M 9.0 M
12/30/2010 7:00 AM T M M 6.5 M Little if any moisture in the gauge, but it was very misty all through the night.
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 T M
1/6/2011 7:00 AM 0.00 0.0 M M M
1/7/2011 7:00 AM T M M T M
1/8/2011 7:00 AM T T 0.01 T 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 0.02 0.4 M 0.5 M
1/12/2011 7:00 AM 0.37 4.2 M 4.5 M
1/13/2011 7:00 AM T T M 3.5 M
1/14/2011 7:00 AM 0.00 0.0 M M M
1/15/2011 7:00 AM T T M 2.5 M
1/16/2011 7:00 AM 0.00 0.0 M 2.5 M
1/17/2011 7:00 AM T T M 2.0 M
1/18/2011 7:00 AM 0.31 M M 1.0 M
1/19/2011 7:00 AM 0.02 T M 1.5 M
1/20/2011 7:00 AM T T M 1.5 M Sheet of ice everywhere, and now the temps are falling. BRRR!
1/21/2011 7:00 AM 0.00 0.0 M M M
1/22/2011 7:00 AM 0.01 0.2 M 1.5 M
1/23/2011 7:00 AM 0.00 0.0 M M M
1/24/2011 7:00 AM 0.00 0.0 M M M
1/25/2011 7:00 AM 0.00 0.0 M M M
1/26/2011 7:00 AM T T M 3.0 M
1/27/2011 7:00 AM T M M 3.0 M
1/28/2011 7:00 AM 0.03 0.7 M 3.5 M
1/29/2011 7:00 AM 0.00 0.0 M M M
1/30/2011 7:00 AM 0.00 0.0 M M M
1/31/2011 7:00 AM T M M 3.0 M
2/1/2011 7:00 AM 0.22 2.9 M 5.0 M
2/2/2011 7:00 AM 1.92 17.2 M 22.0 M Total new snowfall hard to measure. Too much drifting and variation. Highest drifts over 48 measured inches. Emptied rain guage two times to catch snowfall.
2/3/2011 7:00 AM 0.00 0.0 M M M
2/4/2011 7:00 AM 0.00 0.0 M M M
2/5/2011 7:00 AM 0.00 0.0 M M M
2/6/2011 8:30 AM 0.16 3.2 M 21.0 M
2/7/2011 7:00 AM 0.01 0.3 M 21.0 M After the snow in the morning subsided, we had a few flurries throughout the day and later in the evening it began to stick. Still pretty warm though, now cooling off and getting slick from the ice.
2/8/2011 7:00 AM 0.00 0.0 M M M
2/9/2011 7:00 AM 0.00 0.0 M M M
2/10/2011 7:00 AM 0.00 0.0 M M M
2/11/2011 7:00 AM 0.00 0.0 M M M
2/12/2011 7:00 AM T M M 10.0 M
2/13/2011 7:00 AM 0.00 0.0 M M M
2/14/2011 7:00 AM 0.00 0.0 M 8.5 2.57 Core sample taken at an average depth. Still a lot of variation due to the drifting and shoveling.
2/15/2011 7:00 AM 0.00 0.0 M 6.0 M
2/16/2011 7:00 AM 0.00 0.0 M M M
2/17/2011 7:00 AM 0.00 0.0 M M M
2/18/2011 7:00 AM 0.00 0.0 M M M
2/19/2011 7:00 AM 0.00 0.0 M M M
2/20/2011 7:00 AM 0.02 M M T M
2/21/2011 7:00 AM 0.00 0.0 M M M
2/22/2011 7:00 AM 0.00 0.0 M M M
2/23/2011 7:00 AM 0.00 0.0 M M M
2/24/2011 7:00 AM 0.00 0.0 M M M
2/25/2011 7:00 AM 0.00 0.0 M M M
2/26/2011 7:00 AM 0.00 0.0 M M M
2/27/2011 7:00 AM 0.00 0.0 M M M
2/28/2011 7:00 AM 0.00 0.0 M M M
3/1/2011 7:00 AM 0.00 0.0 M M M
3/2/2011 7:00 AM 0.00 0.0 M M M
3/3/2011 7:00 AM 0.00 0.0 M M M
3/4/2011 7:00 AM 0.02 M M T M
3/5/2011 7:00 AM 0.00 0.0 M M M
3/6/2011 7:00 AM 0.00 0.0 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 0.34 M M M M
3/10/2011 7:00 AM 0.03 M M M M Some snow frozen in top of cone.
3/11/2011 7:00 AM 0.00 0.0 M T 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 T M M M M
3/16/2011 7:00 AM 0.00 0.0 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 0.02 M M M M
3/21/2011 7:00 AM 0.41 M M M M
3/22/2011 7:00 AM 0.34 M M M M
3/23/2011 7:00 AM 0.54 M M M M
3/24/2011 7:00 AM 0.03 M M M M
3/25/2011 7:00 AM 0.00 0.0 M M M
3/26/2011 7:00 AM T M M M M Flurries last night. Just enough to see it in the headlights at night.
3/27/2011 7:00 AM 0.00 0.0 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 0.16 M M M M Rained during the afternoon and again later in the evening. 0.13 from the afternoon, and 0.03 from the evening rain.
4/3/2011 7:00 AM 0.02 M M M M
4/4/2011 7:00 AM 0.23 M M M M Heavy lightning and thunder late in the evening. Passed by very quickly.
4/5/2011 7:00 AM 0.03 M M M M
4/6/2011 7:00 AM T M M M M Minor drizzle from Gross Pt Road & Howard to Gross Pt Road & Central Street starting at 18:35 to 18:50 CDT. Rain gauge at home was dry.
4/7/2011 7:00 AM 0.02 M M M M
4/8/2011 7:00 AM 0.70 M M M M There are still piles of snow present in the Northwestern University stadium parking lot - at the north end about 12 to 14 inches high.
4/9/2011 7:00 AM 0.08 M M M M
4/10/2011 7:00 AM 0.00 0.0 M M M
4/11/2011 7:00 AM 0.00 0.0 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 7:00 AM 0.00 0.0 M M M
4/16/2011 7:00 AM 0.38 M M M M Still raining lightly
4/17/2011 7:00 AM 0.10 M M M M
4/18/2011 7:00 AM 0.51 M M M M
4/19/2011 7:00 AM 0.05 M M M M
4/20/2011 7:00 AM 0.89 M M M M At times moderate thunder and lighting. Periods of heavy rain as well.
4/21/2011 7:00 AM 0.00 0.0 M M M
4/22/2011 7:00 AM 0.33 M M M M still raining off and on.
4/23/2011 7:00 AM 0.34 M M M M
4/24/2011 7:00 AM 0.00 0.0 M M M
4/25/2011 7:00 AM 0.02 M M M M
4/26/2011 7:00 AM 1.13 M M M M
4/27/2011 7:00 AM 0.10 M M M M
4/28/2011 7:00 AM 0.27 M M M M
4/29/2011 7:00 AM 0.08 M M M M
4/30/2011 7:00 AM 0.00 0.0 M M M
5/1/2011 7:00 AM 0.00 0.0 M M M
5/2/2011 7:00 AM 0.00 0.0 M M M
5/3/2011 7:00 AM 0.00 0.0 M M M
5/4/2011 7:00 AM T M M M M Light misting last night around 7:30 PM, Just enough to see it on the windows of the car.
5/5/2011 7:00 AM 0.00 0.0 M M M
5/6/2011 7:00 AM 0.04 M M M M Brief moderate lightning and thunder.
5/7/2011 7:00 AM T M M M M
5/8/2011 7:00 AM 0.02 M M M M
5/9/2011 7:00 AM T M M M M
5/10/2011 7:00 AM 0.00 0.0 M M M
5/11/2011 7:00 AM 0.00 0.0 M M M
5/12/2011 7:00 AM 0.47 M M M M Early afternoon rain was 0.17. Remaining rainfall occurred after 00:45 AM.
5/13/2011 7:00 AM 0.00 0.0 M M M
5/16/2011 7:00 AM 0.10 M M M M
5/17/2011 7:00 AM 0.00 0.0 M M M
5/18/2011 7:00 AM 0.05 M M M M
5/19/2011 7:00 AM 0.03 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 0.62 M M M M Most of the rain fell late in the evening. Only 0.02" fell from the afternoon storms that rolled through.
5/24/2011 7:00 AM T M M M M
5/25/2011 7:00 AM 0.05 M M M M
5/26/2011 7:00 AM 2.41 M M M M light rain still falling
5/27/2011 7:00 AM 0.21 M M M M
5/28/2011 7:00 AM 0.04 M M M M
5/29/2011 7:00 AM 0.11 M M M M
5/30/2011 7:00 AM 1.67 M M M M
5/31/2011 7:00 AM 0.00 0.0 M M M Really warm yesterday - even in the morning @ 9 AM. Went for bike ride on Green Bay Trail. Lots of standing water from the rains, many yards flooded, as well as street drains still clogged.
6/1/2011 7:00 AM 0.13 M M M M
6/2/2011 7:00 AM 0.00 0.0 M M M
6/3/2011 7:00 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 0.02 M M M M
6/6/2011 7:00 AM 0.00 0.0 M M M Beautiful day yesterday.
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 HOT, HOT, HOT, Too hot for this time of year. Our bodies have not had a chance to adjust.
6/9/2011 7:00 AM 0.46 M M M M Rain began @ 11:24 PM. Hail began @ 11:26 PM
6/10/2011 7:00 AM 0.46 M M M M
6/11/2011 7:00 AM 0.07 M M M M
6/12/2011 7:00 AM 0.02 M M M M
6/13/2011 7:00 AM 0.00 0.0 M M M Cool yet very nice day.
6/14/2011 7:00 AM 0.00 0.0 M M M Perfect weather day!
6/15/2011 7:00 AM 0.29 M M M M still raining for now
6/16/2011 7:00 AM 0.74 M M M M
6/17/2011 7:00 AM 0.00 0.0 M M M Beautiful day yesterday. Another one starting this morning, but this is Chicago, just wait it will never last.
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 0.03 M M M M Morning shower, very brief
6/21/2011 7:00 AM 0.19 M M M M
6/22/2011 7:00 AM 0.16 M M M M Power went out @ 20:56. Still out all over the neighborhood.
6/23/2011 7:00 AM 0.02 M M M M
6/24/2011 7:00 AM T M M M M
6/25/2011 7:00 AM 0.00 0.0 M M M
7/4/2011 7:00 AM 0.00 0.0 M M M Beautiful day. Got cooler by the lake during the Wilmette fireworks, but a great evening show either way.
7/5/2011 7:00 AM 0.00 0.0 M M M
7/6/2011 7:00 AM T 0.0 M M M Minor sprinkles around 10 PM.
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
7/10/2011 7:00 AM 0.00 0.0 M M M
7/11/2011 7:00 AM 0.00 0.0 M M M HOT and HUMID!
7/12/2011 7:00 AM 0.43 M M M M
7/13/2011 7:00 AM T M M M M
7/14/2011 7:00 AM 0.00 0.0 M M M Beautiful evening. Nice breeze, low humidity, and great temperatures! Too bad we live in Chicago - It won't last long!!!!
7/15/2011 7:00 AM 0.00 0.0 M M M Still have a neighbor without power. ComED not in a big hurry to hook him back up now that an electrician has helped them fix the wires from the house. Tree damage took down their service.
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 0.00 0.0 M M M Chicago summer at it worst. Hot, sticky, and no wind. Wind power would be so effective right about now! :(
7/19/2011 7:00 AM 0.00 0.0 M M M
7/20/2011 7:00 AM 0.23 M M M M Really loud but fast moving storm. Lots of lightning and thunder.
7/21/2011 7:00 AM 0.00 0.0 M M M HOTTTTT! & HUMID!!!
7/22/2011 7:00 AM 0.15 M M M M thunder began @ 12:00 AM, rain began @ 12:25 AM. Fell asleep so don't know when it ended.
7/23/2011 7:00 AM 3.85 M M M M Earlier rain in the morning accounted for 0.87". Later rains began around 00:15 AM this morning. Amazing lightning and thunder display. Have not seen or heard such light or noise in many years. Lasted for hours! Not much wind, but had we been able to save that electricity, we could have powered Chicago for a few months! Simply amazing!
7/24/2011 7:00 AM 0.12 M M M M
7/25/2011 7:00 AM 0.12 M M M M
7/26/2011 7:00 AM 0.00 0.0 M M M Beautiful evening, went for bike ride along the lakefront in Evanston. People out, the weather perfect!
7/27/2011 7:00 AM 0.00 0.0 M M M Another really nice evening along the lakefront.
7/28/2011 7:00 AM 0.93 M M M M Morning rain total was 0.15", balance of rain fell after 12:00 AM. Some lightning and thunder but not nearly like last Saturday.
7/29/2011 7:00 AM 0.83 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 Really humid day yesterday. Worked outside and you would have thought someone had hosed me down, but it was just perspiration.
8/2/2011 7:00 AM 0.00 0.0 M M M Really sticky, YUCK!
8/3/2011 7:00 AM 1.10 M M M M Early wave of rain dropped only 0.05". Later storms provided the rest. Impressive lightning display, storm passage lasted only a few mnutes
8/4/2011 7:00 AM 0.00 0.0 M M M Really nice day finally. Started out massively humid, then dried out.
8/5/2011 7:00 AM 0.00 0.0 M M M
8/6/2011 7:00 AM 0.30 M M M M
8/7/2011 7:00 AM 0.00 0.0 M M M
8/8/2011 7:00 AM 0.48 M M M M three distinct periods of rain. Morning 0.15, Afternoon=early evening 0.28, late evening 0.05
8/9/2011 7:00 AM 0.37 M M M M
8/10/2011 7:00 AM 0.00 0.0 M M M Really nice evening once the humidity dropped.
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 T 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 0.38 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 0.06 M M M M Light drizzle to rain fell starting around 8:30 PM
9/1/2011 7:00 AM 0.00 0.0 M M M
9/2/2011 7:00 AM 0.03 M M M M
9/3/2011 7:00 AM 0.00 0.0 M M M
9/4/2011 7:00 AM 0.30 M M M M
9/5/2011 7:00 AM 0.06 M 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 T M M M M
9/10/2011 7:00 AM 0.23 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 Great weekend of weather. Sunny, not too windy, great soccer games. Need to remember days like this in January!
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 0.08 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 7:00 AM 0.00 0.0 M M M
9/19/2011 7:00 AM 1.04 M M M M
9/20/2011 7:00 AM 0.00 0.0 M M M
9/21/2011 7:00 AM 0.02 M M M M
9/22/2011 7:00 AM 0.00 0.0 M M M
9/23/2011 7:00 AM 0.03 M M M M
9/24/2011 7:00 AM 0.05 M M M M
9/25/2011 7:00 AM 0.19 M M M M
9/26/2011 7:00 AM 0.99 M M M M Still drizzeling
9/27/2011 7:00 AM 0.23 M M M M
9/28/2011 7:00 AM 0.20 M M M M
9/29/2011 7:00 AM 0.45 M M M M
9/30/2011 7:00 AM 0.15 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/21/2010 11/23/2010 7:00 AM 3 2.14 M M Returned back just after the rains last night. Drove through most of it from Ann Arbor back to Chicago. Pretty heavy at times along I-94.
12/4/2010 12/05/2010 7:00 AM 2 0.51 4.5 M
12/12/2010 12/13/2010 7:00 AM 2 0.61 1.5 M Started as rain and ended as snow
12/21/2010 12/22/2010 7:00 AM 2 0.19 2.5 M
12/25/2010 12/26/2010 10:00 AM 2 0.71 11.0 M Two (2) inches of snow on the first day, seven (7) inches of lake effect from 02:00 26 Dec until I emptied the gage and measured the snow @ 10:00.
12/31/2010 1/01/2011 8:50 AM 2 0.77 T M Up to 54 Deg F yesterday, now only 24 Deg F on Taylor mercury high/low.
5/14/2011 5/15/2011 10:30 AM 2 0.85 M M
6/26/2011 7/03/2011 8:00 AM 8 0.48 M M
8/14/2011 8/21/2011 9:00 AM 8 1.91 0.0 0.00 Great vacation up in Petoskey, MI. Weather was perfect, beautiful countryside.



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
6/8/2011 11:26 PM Rain began about a minute before hail. Hail was brief and intermittent, then rain was heavy and it all melted immediately. 1/2" Grape 3/8" Rice Hard|Clear Ice|White Ice 4 2min minor leaf damage Intermittent True After rain After smaller hail 10-20 0