Station Overview Station Location
Station Number IL-CK-97 Latitude 41.93012
Station Name Chicago 6.8 NNE Longitude -87.639295
County Cook Elevation (ft) 591



Month 30 Yr Avg by PRISM Total Prcp Sum Days Covered By All Observations Daily Prcp Sum Daily Observation Count Multiday Prcp Sum Days Covered by Multiday Observations Multiday Observation Count Days With Prcp Days With Trace Total Snowfall Days With Snowfall Days With Snow On Ground
Oct 09 3.22 5.19 31 5.19 31 0.00 0 0 20 2 0.0 0 0
Nov 09 3.03 1.25 30 1.25 30 0.00 0 0 8 3 0.0 0 0
Dec 09 2.31 2.54 31 2.54 31 0.00 0 0 18 3 0.0 0 0
Jan 10 1.87 0.73 31 0.43 22 0.30 9 1 3 7 0.0 0 0
Feb 10 1.79 1.76 28 1.76 28 0.00 0 0 12 3 0.0 0 0
March 10 2.36 1.31 31 1.31 31 0.00 0 0 8 2 0.0 0 0
April 10 3.52 2.12 30 2.12 30 0.00 0 0 10 2 0.0 0 0
May 10 3.89 3.40 31 3.40 31 0.00 0 0 13 1 0.0 0 0
June 10 4.12 5.64 30 5.64 30 0.00 0 0 19 2 0.0 0 0
July 10 3.89 6.36 31 6.36 31 0.00 0 0 9 1 0.0 0 0
Aug 10 4.17 1.33 31 1.33 31 0.00 0 0 7 0 0.0 0 0
Sept 10 3.22 1.28 29 1.28 29 0.00 0 0 11 1 0.0 0 0
Water Year Totals: 37.39" 32.91" 364 days 32.61" 355 0.30" 9 days 1 138 days 27 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
10/1/2009 0.00
10/2/2009 0.54
10/3/2009 0.05
10/4/2009 0.05
10/5/2009 0.00
10/6/2009 T
10/7/2009 0.02
10/8/2009 0.00
10/9/2009 0.35
10/10/2009 0.29
10/11/2009 0.00
10/12/2009 0.00
10/13/2009 0.01
10/14/2009 T
10/15/2009 0.22
10/16/2009 0.11
10/17/2009 0.05
10/18/2009 0.05
10/19/2009 0.00
10/20/2009 0.00
10/21/2009 0.00
10/22/2009 0.02
10/23/2009 1.58
10/24/2009 0.07
10/25/2009 0.01
10/26/2009 0.11
10/27/2009 0.06
10/28/2009 0.11
10/29/2009 0.00
10/30/2009 1.11
10/31/2009 0.38
11/1/2009 0.00
11/2/2009 T
11/3/2009 0.00
11/4/2009 0.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.00
11/15/2009 0.00
11/16/2009 T
11/17/2009 0.00
11/18/2009 0.30
11/19/2009 0.02
11/20/2009 0.05
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 T
11/25/2009 0.71
11/26/2009 0.08
11/27/2009 0.01
11/28/2009 0.00
11/29/2009 0.05
11/30/2009 0.03
12/1/2009 0.00
12/2/2009 0.00
12/3/2009 0.16
12/4/2009 T
12/5/2009 0.00
12/6/2009 0.00
12/7/2009 0.06
12/8/2009 0.12
12/9/2009 0.31
12/10/2009 0.02
12/11/2009 0.00
12/12/2009 0.00
12/13/2009 0.01
12/14/2009 0.01
12/15/2009 0.01
12/16/2009 0.00
12/17/2009 0.00
12/18/2009 T
12/19/2009 0.40
12/20/2009 0.06
12/21/2009 T
12/22/2009 0.20
12/23/2009 0.04
12/24/2009 0.23
12/25/2009 0.67
12/26/2009 0.15
12/27/2009 0.04
12/28/2009 0.03
12/29/2009 0.00
12/30/2009 0.00
12/31/2009 0.02
Day of YearDaily PrcpMultiday Prcp
1/1/2010 0.00
1/2/2010 0.00
1/3/2010 T
1/4/2010 **
1/5/2010 **
1/6/2010 **
1/7/2010 **
1/8/2010 **
1/9/2010 **
1/10/2010 **
1/11/2010 **
1/12/2010 0.30
1/13/2010 0.00
1/14/2010 0.00
1/15/2010 0.00
1/16/2010 0.00
1/17/2010 0.00
1/18/2010 0.00
1/19/2010 0.00
1/20/2010 0.00
1/21/2010 T
1/22/2010 0.11
1/23/2010 T
1/24/2010 0.31
1/25/2010 T
1/26/2010 T
1/27/2010 0.00
1/28/2010 0.01
1/29/2010 T
1/30/2010 T
1/31/2010 0.00
2/1/2010 0.00
2/2/2010 0.12
2/3/2010 0.01
2/4/2010 T
2/5/2010 0.00
2/6/2010 0.05
2/7/2010 0.00
2/8/2010 0.00
2/9/2010 0.21
2/10/2010 0.58
2/11/2010 T
2/12/2010 0.00
2/13/2010 0.00
2/14/2010 0.00
2/15/2010 0.00
2/16/2010 0.01
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.04
2/21/2010 T
2/22/2010 0.64
2/23/2010 0.01
2/24/2010 0.03
2/25/2010 0.04
2/26/2010 0.00
2/27/2010 0.02
2/28/2010 0.00
3/1/2010 T
3/2/2010 0.00
3/3/2010 0.00
3/4/2010 0.00
3/5/2010 0.00
3/6/2010 0.00
3/7/2010 0.00
3/8/2010 0.01
3/9/2010 0.00
3/10/2010 0.07
3/11/2010 0.00
3/12/2010 0.19
3/13/2010 0.37
3/14/2010 0.09
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.00
3/19/2010 0.00
3/20/2010 0.22
3/21/2010 0.35
3/22/2010 0.00
3/23/2010 0.00
3/24/2010 0.00
3/25/2010 T
3/26/2010 0.00
3/27/2010 0.00
3/28/2010 0.01
3/29/2010 0.00
3/30/2010 0.00
3/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 0.00
4/3/2010 0.06
4/4/2010 0.07
4/5/2010 0.68
4/6/2010 0.31
4/7/2010 0.19
4/8/2010 0.37
4/9/2010 0.01
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 T
4/13/2010 0.00
4/14/2010 0.00
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 T
4/23/2010 0.00
4/24/2010 0.14
4/25/2010 0.13
4/26/2010 0.16
4/27/2010 0.00
4/28/2010 0.00
4/29/2010 0.00
4/30/2010 0.00
5/1/2010 0.24
5/2/2010 0.33
5/3/2010 0.00
5/4/2010 0.00
5/5/2010 T
5/6/2010 0.00
5/7/2010 0.73
5/8/2010 0.01
5/9/2010 0.01
5/10/2010 0.00
5/11/2010 0.46
5/12/2010 0.03
5/13/2010 1.14
5/14/2010 0.14
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 0.05
5/18/2010 0.00
5/19/2010 0.00
5/20/2010 0.00
5/21/2010 0.24
5/22/2010 0.01
5/23/2010 0.00
5/24/2010 0.00
5/25/2010 0.00
5/26/2010 0.00
5/27/2010 0.00
5/28/2010 0.00
5/29/2010 0.00
5/30/2010 0.00
5/31/2010 0.01
6/1/2010 0.40
6/2/2010 1.41
6/3/2010 0.12
6/4/2010 0.00
6/5/2010 0.07
6/6/2010 0.17
6/7/2010 0.17
6/8/2010 0.04
6/9/2010 0.42
6/10/2010 0.00
6/11/2010 0.34
6/12/2010 T
6/13/2010 0.14
6/14/2010 0.39
6/15/2010 0.02
6/16/2010 0.21
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.51
6/20/2010 0.00
6/21/2010 T
6/22/2010 0.09
6/23/2010 0.19
6/24/2010 0.51
6/25/2010 0.00
6/26/2010 0.33
6/27/2010 0.00
6/28/2010 0.11
6/29/2010 0.00
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 0.29
7/8/2010 0.29
7/9/2010 0.04
7/10/2010 0.00
7/11/2010 0.20
7/12/2010 0.15
7/13/2010 T
7/14/2010 0.00
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.05
7/20/2010 0.00
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.00
7/24/2010 4.19
7/25/2010 0.39
7/26/2010 0.00
7/27/2010 0.00
7/28/2010 0.00
7/29/2010 0.00
7/30/2010 0.00
7/31/2010 0.76
8/1/2010 0.00
8/2/2010 0.00
8/3/2010 0.22
8/4/2010 0.24
8/5/2010 0.09
8/6/2010 0.00
8/7/2010 0.00
8/8/2010 0.00
8/9/2010 0.02
8/10/2010 0.00
8/11/2010 0.00
8/12/2010 0.00
8/13/2010 0.00
8/14/2010 0.10
8/15/2010 0.00
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.08
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.58
8/22/2010 0.00
8/23/2010 0.00
8/24/2010 0.00
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010 0.00
8/30/2010 0.00
8/31/2010 0.00
9/1/2010 0.17
9/2/2010 0.32
9/3/2010 0.42
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 T
9/7/2010 0.00
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.01
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010 0.01
9/17/2010 0.06
9/18/2010 0.00
9/19/2010 0.13
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.04
9/23/2010 0.00
9/24/2010 0.04
9/25/2010 0.00
9/26/2010 0.06
9/27/2010 0.02
9/28/2010 0.00
9/29/2010 0.00
9/30/2010



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2009 7:00 AM 0.00 0.0 M M M
10/2/2009 10:00 AM 0.54 M M M M Some lightning and strong wind gusts.
10/3/2009 10:00 AM 0.05 M M M M Light showers.
10/4/2009 9:30 AM 0.05 M M M M Sporatic light showers.
10/5/2009 9:00 AM 0.00 0.0 M M M
10/6/2009 9:00 AM T M M M M
10/7/2009 9:00 AM 0.02 M M M M Strong wind gusts.
10/8/2009 9:00 AM 0.00 0.0 M M M
10/9/2009 10:00 AM 0.35 M M M M
10/10/2009 7:30 AM 0.29 M M M M
10/11/2009 8:30 AM 0.00 0.0 M M M First sub-freezing temperatures of the season.
10/12/2009 8:30 AM 0.00 0.0 M M M
10/13/2009 10:00 AM 0.01 M M M M
10/14/2009 10:00 AM T M M M M
10/15/2009 9:00 AM 0.22 M M M M Strong winds off Lake Michigan with high waves: Sporadic showers and heavy overcast.
10/16/2009 8:45 AM 0.11 M M M M
10/17/2009 8:30 AM 0.05 M M M M
10/18/2009 10:00 AM 0.05 M M M M Brief scattered showers.
10/19/2009 8:30 AM 0.00 0.0 M M M
10/20/2009 8:30 AM 0.00 0.0 M M M
10/21/2009 8:00 AM 0.00 0.0 M M M
10/22/2009 10:00 AM 0.02 M M M M Light showers with heavy overcast skies.
10/23/2009 8:30 AM 1.58 M M M M Wind and fog. High waves crashing on Lake Michigan.
10/24/2009 9:30 AM 0.07 M M M M Light showers, gusty winds and heavy overcast.
10/25/2009 8:30 AM 0.01 M M M M
10/26/2009 9:00 AM 0.11 M M M M Sporadic, light showers.
10/27/2009 10:00 AM 0.06 M M M M
10/28/2009 9:15 AM 0.11 M M M M Light showers, heavy overcast.
10/29/2009 8:30 AM 0.00 0.0 M M M
10/30/2009 10:00 AM 1.11 M M M M Strong wind gusts.
10/31/2009 10:00 AM 0.38 M M M M Still very windy, but the sun is shinning again.
11/1/2009 8:00 AM 0.00 0.0 M M M
11/2/2009 8:15 AM T M M M M Sprinkles
11/3/2009 7:30 AM 0.00 0.0 M M M
11/4/2009 8:30 AM 0.00 0.0 M M M
11/5/2009 7:30 AM 0.00 0.0 M M M
11/6/2009 10:00 AM 0.00 0.0 M M M
11/7/2009 10:00 AM 0.00 0.0 M M M
11/8/2009 10:00 AM 0.00 0.0 M M M
11/9/2009 9:00 AM 0.00 0.0 M M M
11/10/2009 8:30 AM 0.00 0.0 M M M
11/11/2009 10:00 AM 0.00 0.0 M M M
11/12/2009 10:00 AM 0.00 0.0 M M M
11/13/2009 8:30 AM 0.00 0.0 M M M
11/14/2009 10:00 AM 0.00 0.0 M M M
11/15/2009 7:00 AM 0.00 0.0 M M M
11/16/2009 10:00 AM T M M M M
11/17/2009 9:30 AM 0.00 0.0 M M M
11/18/2009 9:00 AM 0.30 M M M M Intermittant light showers.
11/19/2009 9:00 AM 0.02 M M M M
11/20/2009 9:00 AM 0.05 M M M M Scattered light showers.
11/21/2009 7:00 AM 0.00 0.0 M M M
11/22/2009 10:00 AM 0.00 0.0 M M M
11/23/2009 8:30 AM 0.00 0.0 M M M
11/24/2009 9:00 AM T M M M M Light drizzle.
11/25/2009 9:30 AM 0.71 M M M M Showers.
11/26/2009 7:45 AM 0.08 M M M M
11/27/2009 9:00 AM 0.01 M M M M
11/28/2009 10:00 AM 0.00 0.0 M M M
11/29/2009 12:00 PM 0.05 M M M M Light rain with some lightning and thunder.
11/30/2009 8:30 AM 0.03 M M M M
12/1/2009 8:00 AM 0.00 0.0 M M M
12/2/2009 8:00 AM 0.00 0.0 M M M
12/3/2009 9:15 AM 0.16 M M M M
12/4/2009 10:00 AM T M M M M Snow flurries.
12/5/2009 7:00 AM 0.00 0.0 M M M
12/6/2009 10:00 AM 0.00 0.0 M M M
12/7/2009 9:30 AM 0.06 M M M M Aprox 1" of snow.
12/8/2009 10:00 AM 0.12 M M M M Snow
12/9/2009 8:30 AM 0.31 M M M M Mostly rain mixed with some snow flurries
12/10/2009 9:00 AM 0.02 M M M M Precipitation fell as snow. Strong winds and below zero wind chills with clear skies.
12/11/2009 10:00 AM 0.00 0.0 M M M
12/12/2009 8:00 AM 0.00 0.0 M M M
12/13/2009 10:00 AM 0.01 M M M M Drizzle.
12/14/2009 8:30 AM 0.01 M M M M Fog and drizzle.
12/15/2009 9:00 AM 0.01 M M M M Light drizzle.
12/16/2009 9:00 AM 0.00 0.0 M M M
12/17/2009 9:00 AM 0.00 0.0 M M M
12/18/2009 10:00 AM T M M M M Snow flurries.
12/19/2009 10:00 AM 0.40 T M M M MIxed rain and snow.
12/20/2009 10:00 AM 0.06 T M M M Rain and snow mixture.
12/21/2009 8:30 AM T T M M M Snow flurries.
12/22/2009 10:00 AM 0.20 T M M M 0.20 water equivalent, exactly. There is approx. 3" of new snow cover.
12/23/2009 10:00 AM 0.04 T M M M Snow flurries
12/24/2009 9:45 AM 0.23 T M M M Sleet, snow and rain.
12/25/2009 9:30 AM 0.67 M M M M Mostly rain with some sleet early in the day.
12/26/2009 10:00 AM 0.15 T M M M Rain changing to snow.
12/27/2009 9:30 AM 0.04 T M M M Snow
12/28/2009 9:30 AM 0.03 T M M M Snow
12/29/2009 8:30 AM 0.00 0.0 M M M
12/30/2009 10:00 AM 0.00 0.0 M M M
12/31/2009 10:00 AM 0.02 T M M M Snow
1/1/2010 9:00 AM 0.00 0.0 M M M
1/2/2010 7:00 AM 0.00 0.0 M M M
1/3/2010 8:00 AM T M M M M A few snow flurries
1/13/2010 7:00 AM 0.00 0.0 M M M
1/14/2010 10:00 AM 0.00 0.0 M M M
1/15/2010 10:00 AM 0.00 0.0 M M M
1/16/2010 9:30 AM 0.00 0.0 M M M
1/17/2010 10:00 AM 0.00 0.0 M M M
1/18/2010 8:30 AM 0.00 0.0 M M M
1/19/2010 9:30 AM 0.00 0.0 M M M
1/20/2010 8:30 AM 0.00 0.0 M M M
1/21/2010 7:45 AM T M M M M Rain/sleet.
1/22/2010 10:00 AM 0.11 M M M M Light rain and drizzle.
1/23/2010 10:00 AM T M M M M Sprinkles and fog.
1/24/2010 10:00 AM 0.31 M M M M Rain
1/25/2010 9:00 AM T T M M M Snow flurries.
1/26/2010 10:00 AM T M M M M Flurries
1/27/2010 9:00 AM 0.00 0.0 M M M
1/28/2010 10:00 AM 0.01 T M M M Light snow.
1/29/2010 10:00 AM T T M M M Light snow
1/30/2010 10:00 AM T T M M M Flurries
1/31/2010 10:00 AM 0.00 0.0 M M M
2/1/2010 7:00 AM 0.00 0.0 M M M
2/2/2010 9:30 AM 0.12 T M M M Snow
2/3/2010 10:00 AM 0.01 T M M M Snow
2/4/2010 10:00 AM T M M M M A few flurries.
2/5/2010 10:00 AM 0.00 0.0 M M M
2/6/2010 10:00 AM 0.05 T M M M Approx. 1/2 inch of snow.
2/7/2010 9:30 AM 0.00 0.0 M M M
2/8/2010 7:30 AM 0.00 0.0 M M M
2/9/2010 10:00 AM 0.21 T M M M Approx. 2" snowfall so far.
2/10/2010 9:00 AM 0.58 T M M M Approx 9" additional snow
2/11/2010 9:30 AM T M M M M A few flurries
2/12/2010 10:00 AM 0.00 0.0 M M M
2/13/2010 10:00 AM 0.00 0.0 M M M
2/14/2010 8:00 AM 0.00 0.0 M M M
2/15/2010 8:30 AM 0.00 0.0 M M M
2/16/2010 9:00 AM 0.01 T M M M Litght snow.
2/17/2010 10:00 AM 0.00 0.0 M M M Observed brief snow showers that evaporated before hitting the ground.
2/18/2010 8:30 AM 0.00 0.0 M M M
2/19/2010 8:00 AM 0.00 0.0 M M M
2/20/2010 10:00 AM 0.04 T M M M Approx. 1/4 inch of new snow.
2/21/2010 9:00 AM T M M M M Some snow flurries
2/22/2010 9:30 AM 0.64 T M M M Wind-driven, heavy wet snow coated interior surface of tube, so reading may be off. Acutal snow depth of 4-6 inches, but difficult to determine.
2/23/2010 9:00 AM 0.01 T M M M Snow flurries.
2/24/2010 10:00 AM 0.03 T M M M Light snow
2/25/2010 10:00 AM 0.04 M M M M Approx 3" lake-effect snow.
2/26/2010 7:00 AM 0.00 0.0 M M M
2/27/2010 10:00 AM 0.02 T M M M Snow.
2/28/2010 9:45 AM 0.00 0.0 M M M
3/1/2010 9:00 AM T M M M M Snow flurries and some drizzle.
3/2/2010 9:30 AM 0.00 0.0 M M M
3/3/2010 9:30 AM 0.00 0.0 M M M
3/4/2010 10:00 AM 0.00 0.0 M M M
3/5/2010 7:00 AM 0.00 0.0 M M M
3/6/2010 10:00 AM 0.00 0.0 M M M
3/7/2010 9:00 AM 0.00 0.0 M M M
3/8/2010 10:00 AM 0.01 M M M M
3/9/2010 9:30 AM 0.00 0.0 M M M
3/10/2010 9:00 AM 0.07 M M M M
3/11/2010 8:30 AM 0.00 0.0 M M M
3/12/2010 8:30 AM 0.19 M M M M Rain with some thunder.
3/13/2010 9:30 AM 0.37 M M M M Rain with strong winds and dense fog.
3/14/2010 10:00 AM 0.09 M M M M
3/15/2010 8:00 AM 0.00 0.0 M M M There were light sprinkles in NW suburbs where I was visiting, but I can not say if they occured at registered location.
3/16/2010 8:30 AM 0.00 0.0 M M M
3/17/2010 10:00 AM 0.00 0.0 M M M
3/18/2010 10:00 AM 0.00 0.0 M M M
3/19/2010 10:00 AM 0.00 0.0 M M M
3/20/2010 10:00 AM 0.22 T M M M About 2" heavy wet snow accumulating on unpaved areas. Heavy snow still falling.
3/21/2010 10:00 AM 0.35 T M M M Precipitation fell as wet snow. Accumulations on unpaved areas only.
3/22/2010 10:00 AM 0.00 0.0 M M M
3/23/2010 10:00 AM 0.00 0.0 M M M
3/24/2010 8:30 AM 0.00 0.0 M M M
3/25/2010 10:00 AM T M M M M
3/26/2010 7:00 AM 0.00 0.0 M M M
3/27/2010 7:00 AM 0.00 0.0 M M M
3/28/2010 8:30 AM 0.01 M M M M
3/29/2010 9:30 AM 0.00 0.0 M M M
3/30/2010 7:00 AM 0.00 0.0 M M M
3/31/2010 10:00 AM 0.00 0.0 M M M
4/1/2010 10:00 AM 0.00 0.0 M M M
4/2/2010 10:00 AM 0.00 0.0 M M M
4/3/2010 10:00 AM 0.06 M M M M
4/4/2010 10:00 AM 0.07 M M M M
4/5/2010 9:00 AM 0.68 M M M M Some lightning and thunder with a steady moderate rain.
4/6/2010 9:00 AM 0.31 M M M M Thunderstorms
4/7/2010 9:30 AM 0.19 M M M M
4/8/2010 10:00 AM 0.37 M M M M
4/9/2010 10:00 AM 0.01 M M M M
4/10/2010 7:00 AM 0.00 0.0 M M M
4/11/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 10:00 AM T 0.0 M M M
4/13/2010 10:00 AM 0.00 0.0 M M M
4/14/2010 9:00 AM 0.00 0.0 M M M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 10:00 AM 0.00 0.0 M M M
4/17/2010 10:00 AM 0.00 0.0 M M M
4/18/2010 7:00 AM 0.00 0.0 M M M
4/19/2010 7:00 AM 0.00 0.0 M M M
4/20/2010 7:00 AM 0.00 0.0 M M M
4/21/2010 10:00 AM 0.00 0.0 M M M
4/22/2010 10:00 AM T M M M M
4/23/2010 7:00 AM 0.00 0.0 M M M
4/24/2010 9:00 AM 0.14 M M M M Heavy fog rolling off Lake Michigan
4/25/2010 10:00 AM 0.13 M M M M Strong winds and fog off Lake Michigan
4/26/2010 10:00 AM 0.16 M M M M
4/27/2010 9:00 AM 0.00 0.0 M M M
4/28/2010 9:00 AM 0.00 0.0 M M M
4/29/2010 10:00 AM 0.00 0.0 M M M
4/30/2010 7:00 AM 0.00 0.0 M M M
5/1/2010 10:00 AM 0.24 M M M M Thunderstorms
5/2/2010 9:30 AM 0.33 M M M M
5/3/2010 10:00 AM 0.00 0.0 M M M
5/4/2010 10:00 AM 0.00 0.0 M M M
5/5/2010 10:00 AM T M M M M
5/6/2010 7:00 AM 0.00 0.0 M M M
5/7/2010 10:00 AM 0.73 M M M M THunderstorms
5/8/2010 10:00 AM 0.01 M M M M
5/9/2010 10:00 AM 0.01 M M M M
5/10/2010 7:00 AM 0.00 0.0 M M M
5/11/2010 10:00 AM 0.46 M M M M
5/12/2010 10:00 AM 0.03 M M M M
5/13/2010 9:00 AM 1.14 M M M M Thunderstorms, heavy downpours and gusty winds.
5/14/2010 10:00 AM 0.14 M M M M
5/15/2010 8:30 AM 0.00 0.0 M M M
5/16/2010 7:00 AM 0.00 0.0 M M M
5/17/2010 10:00 AM 0.05 M M M M
5/18/2010 9:30 AM 0.00 0.0 M M M
5/19/2010 7:00 AM 0.00 0.0 M M M
5/20/2010 9:30 AM 0.00 0.0 M M M
5/21/2010 9:30 AM 0.24 M M M M
5/22/2010 9:00 AM 0.01 M M M M
5/23/2010 7:00 AM 0.00 0.0 M M M
5/24/2010 10:00 AM 0.00 0.0 M M M
5/25/2010 10:00 AM 0.00 0.0 M M M
5/26/2010 8:30 AM 0.00 0.0 M M M
5/27/2010 10:00 AM 0.00 0.0 M M M
5/28/2010 9:00 AM 0.00 0.0 M M M
5/29/2010 7:00 AM 0.00 0.0 M M M
5/30/2010 7:00 AM 0.00 0.0 M M M
5/31/2010 10:00 AM 0.01 M M M M Some lightning and thunder, but very little rain.
6/1/2010 8:30 AM 0.40 M M M M Thunderstorms.
6/2/2010 9:00 AM 1.41 M M M M Thunderstorms with heavy downpours.
6/3/2010 10:00 AM 0.12 M M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 10:00 AM 0.07 M M M M
6/6/2010 10:00 AM 0.17 M M M M
6/7/2010 9:30 AM 0.17 M M M M Showers
6/8/2010 9:30 AM 0.04 M M M M
6/9/2010 9:15 AM 0.42 M M M M
6/10/2010 9:00 AM 0.00 0.0 M M M
6/11/2010 9:00 AM 0.34 M M M M Thunderstorms.
6/12/2010 10:00 AM T M M M M light fog
6/13/2010 10:00 AM 0.14 M M M M
6/14/2010 8:30 AM 0.39 M M M M
6/15/2010 9:00 AM 0.02 M M M M
6/16/2010 10:00 AM 0.21 M M M M
6/17/2010 10:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 10:00 AM 0.51 M M M M Reading may not be accurate. Gauge is located on top of 44 story building and winds of 60mph+ were deflected upward over gauge. Two intense thunderstorm systems passed through within 5 hours.
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 9:00 AM T M M M M Thunderstorms beginning to approach.
6/22/2010 8:45 AM 0.09 M M M M Thunderstorms with very intense lightning.
6/23/2010 10:00 AM 0.19 M M M M Light continuous rain, some lightning and thunder.
6/24/2010 9:15 AM 0.51 M M M M Severe thunderstorms with high winds and intense lightning. Some flooding of viaducts and low areas in city and suburbs.
6/25/2010 9:30 AM 0.00 0.0 M M M
6/26/2010 9:00 AM 0.33 M M M M Early morning thunderstorms with intense lightning.
6/27/2010 9:00 AM 0.00 0.0 M M M Thunderstorms approaching from the Northwest.
6/28/2010 8:00 AM 0.11 M M M M Thunderstorms.
6/29/2010 7:00 AM 0.00 0.0 M M M
6/30/2010 10:00 AM 0.00 0.0 M M M
7/1/2010 7:00 AM 0.00 0.0 M M M
7/2/2010 7:00 AM 0.00 0.0 M M M
7/3/2010 10:00 AM 0.00 0.0 M M M
7/4/2010 10:00 AM 0.00 0.0 M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 7:00 AM 0.00 0.0 M M M
7/7/2010 9:00 AM 0.29 M M M M Brief thunderstorm with heavy downpours.
7/8/2010 8:50 AM 0.29 M M M M
7/9/2010 10:00 AM 0.04 M M M M
7/10/2010 10:00 AM 0.00 0.0 M M M
7/11/2010 10:00 AM 0.20 M M M M Thunderstorm
7/12/2010 9:50 AM 0.15 M M M M Thunderstorms
7/13/2010 10:00 AM T M M M M
7/14/2010 10:00 AM 0.00 0.0 M M M
7/15/2010 9:45 AM 0.00 0.0 M M M
7/16/2010 7:00 AM 0.00 0.0 M M M
7/17/2010 9:00 AM 0.00 0.0 M M M
7/18/2010 10:00 AM 0.00 0.0 M M M
7/19/2010 8:30 AM 0.05 M M M M Thunderstorm
7/20/2010 9:30 AM 0.00 0.0 M M M
7/21/2010 9:00 AM 0.00 0.0 M M M
7/22/2010 9:00 AM 0.00 0.0 M M M
7/23/2010 7:00 AM 0.00 0.0 M M M
7/24/2010 9:00 AM 4.19 M M M M Thunderstorms during approximately 12 hour period. No observable flooding.
7/25/2010 10:00 AM 0.39 M M M M
7/26/2010 9:00 AM 0.00 0.0 M M M
7/27/2010 9:00 AM 0.00 0.0 M M M
7/28/2010 10:00 AM 0.00 0.0 M M M
7/29/2010 9:00 AM 0.00 0.0 M M M
7/30/2010 10:00 AM 0.00 0.0 M M M
7/31/2010 9:30 AM 0.76 M M M M Thunderstorms
8/1/2010 10:00 AM 0.00 0.0 M M M
8/2/2010 7:00 AM 0.00 0.0 M M M
8/3/2010 9:00 AM 0.22 M M M M
8/4/2010 9:00 AM 0.24 M M M M Thunderstorms
8/5/2010 10:00 AM 0.09 M M M M
8/6/2010 7:00 AM 0.00 0.0 M M M
8/7/2010 9:00 AM 0.00 0.0 M M M
8/8/2010 9:00 AM 0.00 0.0 M M M
8/9/2010 9:00 AM 0.02 M M M M
8/10/2010 9:00 AM 0.00 0.0 M M M
8/11/2010 9:00 AM 0.00 0.0 M M M
8/12/2010 9:00 AM 0.00 0.0 M M M
8/13/2010 10:00 AM 0.00 0.0 M M M
8/14/2010 9:00 AM 0.10 M M M M Thunderstorm
8/15/2010 10:00 AM 0.00 0.0 M M M
8/16/2010 8:00 AM 0.00 0.0 M M M
8/17/2010 7:00 AM 0.00 0.0 M M M
8/18/2010 9:00 AM 0.08 M M M M
8/19/2010 8:30 AM 0.00 0.0 M M M
8/20/2010 9:00 AM 0.00 0.0 M M M
8/21/2010 9:00 AM 0.58 M M M M Steady rain early this morning.
8/22/2010 8:30 AM 0.00 0.0 M M M
8/23/2010 8:00 AM 0.00 0.0 M M M
8/24/2010 8:00 AM 0.00 0.0 M M M
8/25/2010 9:00 AM 0.00 0.0 M M M
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 10:00 AM 0.00 0.0 M M M
8/28/2010 7:00 AM 0.00 0.0 M M M
8/29/2010 8:00 AM 0.00 0.0 M M M
8/30/2010 7:00 AM 0.00 0.0 M M M
8/31/2010 7:00 AM 0.00 0.0 M M M
9/1/2010 10:00 AM 0.17 M M M M
9/2/2010 10:00 AM 0.32 M M M M light to moderate rain showers.
9/3/2010 10:00 AM 0.42 M M M M Thunderstorms.
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 8:00 AM 0.00 0.0 M M M
9/6/2010 10:00 AM T 0.0 M M M
9/7/2010 7:00 AM 0.00 0.0 M M M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 9:00 AM 0.00 0.0 M M M
9/10/2010 7:00 AM 0.00 0.0 M M M
9/11/2010 10:00 AM 0.01 M M M M This is an approximation. Gauge was obviously tampered with and showed .65 inches.
9/12/2010 8:00 AM 0.00 0.0 M M M
9/13/2010 10:00 AM 0.00 0.0 M M M
9/14/2010 9:00 AM 0.00 0.0 M M M
9/15/2010 8:00 AM 0.00 0.0 M M M
9/16/2010 8:00 AM 0.01 M M M M
9/17/2010 10:00 AM 0.06 M M M M
9/18/2010 9:00 AM 0.00 0.0 M M M
9/19/2010 9:00 AM 0.13 M M M M
9/20/2010 10:00 AM 0.00 0.0 M M M
9/21/2010 10:00 AM 0.00 0.0 M M M
9/22/2010 10:00 AM 0.04 M M M M Strong winds and some thunder and lightning.
9/23/2010 9:00 AM 0.00 0.0 M M M
9/24/2010 10:00 AM 0.04 M M M M
9/25/2010 9:00 AM 0.00 0.0 M M M
9/26/2010 9:00 AM 0.06 M M M M
9/27/2010 8:30 AM 0.02 M M M M
9/28/2010 7:00 AM 0.00 0.0 M M M
9/29/2010 9:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
1/4/2010 1/12/2010 10:00 AM 9 0.30 M M Snow



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