Station Overview Station Location
Station Number IL-CK-148 Latitude 41.693577
Station Name Oak Lawn 1.9 SE Longitude -87.728993
County Cook Elevation (ft) 598



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 3.11 2.72 6 2.72 6 0.00 0 0 5 0 0.0 0 0
Nov 09 3.36 1.42 30 1.05 28 0.37 2 1 6 2 0.0 0 0
Dec 09 2.45 0.07 6 0.07 6 0.00 0 0 1 1 0.0 0 0
Jan 10 1.99 0.34 1 0.34 1 0.00 0 0 1 0 0.0 0 0
Feb 10 1.84 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 10 2.48 1.15 14 1.15 14 0.00 0 0 7 0 0.0 0 0
April 10 3.61 3.10 26 2.78 24 0.32 2 1 8 1 0.0 0 0
May 10 4.15 6.49 30 6.49 27 0.00 3 1 13 2 0.0 0 0
June 10 4.23 11.75 27 11.07 21 0.68 6 3 16 0 0.0 0 0
July 10 4.00 6.15 24 1.77 19 4.38 5 1 8 0 0.0 0 0
Aug 10 4.25 4.95 32 0.37 15 4.58 17 3 3 0 0.0 0 0
Sept 10 3.30 2.58 27 2.29 25 0.29 2 1 10 4 0.0 0 0
Water Year Totals: 38.77" 40.72" 223 days 30.10" 186 10.62" 37 days 11 78 days 10 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
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009
10/16/2009
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009 0.27
10/27/2009 0.10
10/28/2009 0.18
10/29/2009 0.00
10/30/2009 1.28
10/31/2009 0.89
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 T
11/16/2009 0.08
11/17/2009 0.00
11/18/2009 **
11/19/2009 0.37
11/20/2009 0.04
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.00
11/25/2009 0.67
11/26/2009 0.19
11/27/2009 0.03
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.04
12/1/2009 0.00
12/2/2009 0.00
12/3/2009 0.07
12/4/2009 T
12/5/2009 0.00
12/6/2009 0.00
12/7/2009
12/8/2009
12/9/2009
12/10/2009
12/11/2009
12/12/2009
12/13/2009
12/14/2009
12/15/2009
12/16/2009
12/17/2009
12/18/2009
12/19/2009
12/20/2009
12/21/2009
12/22/2009
12/23/2009
12/24/2009
12/25/2009
12/26/2009
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
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
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010
1/18/2010
1/19/2010
1/20/2010
1/21/2010
1/22/2010
1/23/2010
1/24/2010 0.34
1/25/2010
1/26/2010
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010
2/5/2010
2/6/2010
2/7/2010
2/8/2010
2/9/2010
2/10/2010
2/11/2010
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010
2/22/2010
2/23/2010
2/24/2010
2/25/2010
2/26/2010
2/27/2010
2/28/2010
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
3/8/2010 0.10
3/9/2010
3/10/2010 0.08
3/11/2010 0.03
3/12/2010 0.26
3/13/2010 0.49
3/14/2010 0.18
3/15/2010
3/16/2010 0.00
3/17/2010 0.00
3/18/2010
3/19/2010 0.00
3/20/2010
3/21/2010
3/22/2010 0.00
3/23/2010
3/24/2010 0.00
3/25/2010 0.01
3/26/2010
3/27/2010
3/28/2010
3/29/2010 0.00
3/30/2010 0.00
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010 0.00
4/3/2010 **
4/4/2010 0.32
4/5/2010 1.13
4/6/2010 0.00
4/7/2010 0.27
4/8/2010 0.61
4/9/2010 T
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.00
4/13/2010 0.00
4/14/2010 0.00
4/15/2010 0.00
4/16/2010
4/17/2010 0.05
4/18/2010
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.02
4/23/2010 0.00
4/24/2010 0.29
4/25/2010 0.23
4/26/2010 0.18
4/27/2010
4/28/2010 0.00
4/29/2010 0.00
4/30/2010 0.00
5/1/2010 0.39
5/2/2010 0.38
5/3/2010 T
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.00
5/7/2010 0.76
5/8/2010 0.09
5/9/2010 T
5/10/2010 0.00
5/11/2010 0.73
5/12/2010 0.07
5/13/2010 0.59
5/14/2010 0.10
5/15/2010 0.00
5/16/2010 0.00
5/17/2010 0.08
5/18/2010 0.17
5/19/2010
5/20/2010 0.00
5/21/2010 0.29
5/22/2010 1.02
5/23/2010 0.00
5/24/2010 **
5/25/2010 **
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 1.82
6/1/2010 1.27
6/2/2010 1.73
6/3/2010 **
6/4/2010 0.09
6/5/2010 **
6/6/2010 0.24
6/7/2010 0.19
6/8/2010 0.02
6/9/2010 0.46
6/10/2010 0.00
6/11/2010 0.19
6/12/2010 **
6/13/2010 0.35
6/14/2010 0.02
6/15/2010 0.01
6/16/2010 2.14
6/17/2010 0.00
6/18/2010 0.01
6/19/2010 0.72
6/20/2010
6/21/2010 0.40
6/22/2010 0.12
6/23/2010 0.00
6/24/2010 1.61
6/25/2010
6/26/2010 0.43
6/27/2010 0.00
6/28/2010 1.75
6/29/2010 0.00
6/30/2010
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.00
7/2/2010
7/3/2010 0.00
7/4/2010 0.00
7/5/2010 0.00
7/6/2010
7/7/2010 0.07
7/8/2010 0.18
7/9/2010 0.02
7/10/2010
7/11/2010 0.00
7/12/2010 0.74
7/13/2010 0.30
7/14/2010 0.00
7/15/2010 0.00
7/16/2010
7/17/2010
7/18/2010 0.00
7/19/2010 0.01
7/20/2010
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.27
7/24/2010 **
7/25/2010 4.38
7/26/2010
7/27/2010
7/28/2010 0.00
7/29/2010 0.18
7/30/2010 **
7/31/2010 **
8/1/2010 1.34
8/2/2010 **
8/3/2010 **
8/4/2010 **
8/5/2010 **
8/6/2010 **
8/7/2010 **
8/8/2010 **
8/9/2010 **
8/10/2010 **
8/11/2010 **
8/12/2010 **
8/13/2010 **
8/14/2010 **
8/15/2010 0.76
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.02
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.33
8/22/2010
8/23/2010 0.00
8/24/2010 0.00
8/25/2010 0.02
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 0.05
9/2/2010 0.15
9/3/2010 1.12
9/4/2010 0.02
9/5/2010 0.00
9/6/2010 T
9/7/2010
9/8/2010 0.00
9/9/2010 0.00
9/10/2010 0.00
9/11/2010 0.04
9/12/2010 0.15
9/13/2010 0.00
9/14/2010 0.00
9/15/2010
9/16/2010 0.20
9/17/2010 T
9/18/2010 0.00
9/19/2010 **
9/20/2010 0.29
9/21/2010
9/22/2010 0.36
9/23/2010 0.00
9/24/2010 0.12
9/25/2010 T
9/26/2010 0.08
9/27/2010 T
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/26/2009 6:45 AM 0.27 M M M M
10/27/2009 6:45 AM 0.10 M M M M
10/28/2009 6:45 AM 0.18 M M M M
10/29/2009 6:45 AM 0.00 0.0 M M M
10/30/2009 6:45 AM 1.28 M M M M
10/31/2009 6:45 AM 0.89 M M M M
11/1/2009 6:45 AM 0.00 0.0 M M M heavy frost
11/2/2009 6:45 AM T M M M M
11/3/2009 6:45 AM 0.00 0.0 M M M patchy frost
11/4/2009 6:45 AM 0.00 0.0 M M M
11/5/2009 6:45 AM 0.00 0.0 M M M
11/6/2009 6:45 AM 0.00 0.0 M M M
11/7/2009 6:45 AM 0.00 0.0 M M M
11/8/2009 6:45 AM 0.00 0.0 M M M
11/9/2009 6:45 AM 0.00 0.0 M M M Zero precipitation, one ladybug
11/10/2009 6:45 AM 0.00 0.0 M M M
11/11/2009 6:45 AM 0.00 0.0 M M M frost
11/12/2009 6:45 AM 0.00 0.0 M M M heavy frost
11/13/2009 6:45 AM 0.00 0.0 M M M
11/14/2009 6:45 AM 0.00 0.0 M M M
11/15/2009 6:45 AM T M M M M
11/16/2009 6:45 AM 0.08 M M M M
11/17/2009 6:45 AM 0.00 0.0 M M M
11/20/2009 6:45 AM 0.04 M M M M
11/21/2009 6:45 AM 0.00 0.0 M M M frost
11/22/2009 6:45 AM 0.00 0.0 M M M frost
11/23/2009 6:45 AM 0.00 0.0 M M M
11/24/2009 6:45 AM 0.00 0.0 M M M
11/25/2009 6:45 AM 0.67 M M M M light mist falling
11/26/2009 6:45 AM 0.19 M M M M light rain
11/27/2009 6:45 AM 0.03 M M M M
11/28/2009 6:45 AM 0.00 0.0 M M M frost
11/29/2009 6:45 AM 0.00 0.0 M M M patchy frost
11/30/2009 6:45 AM 0.04 M M M M frost
12/1/2009 6:45 AM 0.00 0.0 M M M frost
12/2/2009 6:45 AM 0.00 0.0 M M M
12/3/2009 6:45 AM 0.07 M M M M
12/4/2009 6:45 AM T M M M M
12/5/2009 6:45 AM 0.00 0.0 M M M
12/6/2009 6:45 AM 0.00 0.0 M M M
1/24/2010 6:45 AM 0.34 M M M M Light rain - mist
3/8/2010 6:45 AM 0.10 M M M M
3/10/2010 6:45 AM 0.08 M M M M Raining
3/11/2010 6:45 AM 0.03 M M M M
3/12/2010 6:45 AM 0.26 M M M M
3/13/2010 6:45 AM 0.49 M M M M
3/14/2010 6:45 AM 0.18 M M M M
3/16/2010 6:45 AM 0.00 0.0 M M M
3/17/2010 6:45 AM 0.00 0.0 M M M frost
3/19/2010 6:45 AM 0.00 0.0 M M M
3/22/2010 6:45 AM 0.00 0.0 M M M
3/24/2010 6:45 AM 0.00 0.0 M M M
3/25/2010 6:45 AM 0.01 M M M M
3/29/2010 6:45 AM 0.00 0.0 M M M
3/30/2010 6:45 AM 0.00 0.0 M M M Frost
4/2/2010 6:45 AM 0.00 0.0 M M M
4/5/2010 6:45 AM 1.13 M M M M
4/6/2010 6:45 AM 0.00 0.0 M M M
4/7/2010 6:45 AM 0.27 M M M M Raining at 6:45 A.M.
4/8/2010 6:45 AM 0.61 M M M M
4/9/2010 6:45 AM T M M M M frost
4/10/2010 6:45 AM 0.00 0.0 M M M
4/11/2010 6:45 AM 0.00 0.0 M M M
4/12/2010 6:45 AM 0.00 0.0 M M M
4/13/2010 6:45 AM 0.00 0.0 M M M
4/14/2010 6:45 AM 0.00 0.0 M M M
4/15/2010 6:45 AM 0.00 0.0 M M M
4/17/2010 6:45 AM 0.05 M M M M
4/19/2010 6:45 AM 0.00 0.0 M M M Patchy frost
4/20/2010 6:45 AM 0.00 0.0 M M M
4/21/2010 6:45 AM 0.00 0.0 M M M
4/22/2010 6:45 AM 0.02 M M M M
4/23/2010 6:45 AM 0.00 0.0 M M M
4/24/2010 6:45 AM 0.29 M M M M
4/25/2010 6:45 AM 0.23 M M M M
4/26/2010 6:45 AM 0.18 M M M M
4/28/2010 6:45 AM 0.00 0.0 M M M Frost
4/29/2010 6:45 AM 0.00 0.0 M M M
4/30/2010 6:45 AM 0.00 0.0 M M M
5/1/2010 6:45 AM 0.39 M M M M
5/2/2010 6:45 AM 0.38 M M M M
5/3/2010 6:45 AM T M M M M
5/4/2010 6:45 AM 0.00 0.0 M M M
5/5/2010 6:45 AM 0.00 0.0 M M M
5/6/2010 6:45 AM 0.00 0.0 M M M
5/7/2010 6:45 AM 0.76 M M M M A pause in the rain here.
5/8/2010 6:45 AM 0.09 M M M M
5/9/2010 6:45 AM T M M M M
5/10/2010 6:45 AM 0.00 0.0 M M M
5/11/2010 6:45 AM 0.73 M M M M Light rain
5/12/2010 6:45 AM 0.07 M M M M
5/13/2010 6:45 AM 0.59 M M M M Light rain
5/14/2010 6:45 AM 0.10 M M M M
5/15/2010 6:45 AM 0.00 0.0 M M M
5/16/2010 6:45 AM 0.00 0.0 M M M
5/17/2010 6:45 AM 0.08 M M M M
5/18/2010 6:45 AM 0.17 M M M M
5/20/2010 6:45 AM 0.00 0.0 M M M
5/21/2010 6:45 AM 0.29 M M M M
5/22/2010 6:45 AM 1.02 M M M M
5/23/2010 6:45 AM 0.00 0.0 M M M
5/27/2010 6:45 AM 0.00 0.0 M M M
5/28/2010 6:45 AM 0.00 0.0 M M M
5/29/2010 6:45 AM 0.00 0.0 M M M
5/30/2010 6:45 AM 0.00 0.0 M M M
5/31/2010 6:45 AM 1.82 M M M M
6/1/2010 6:45 AM 1.27 M M M M Fog
6/2/2010 6:45 AM 1.73 M M M M
6/7/2010 6:45 AM 0.19 M M M M
6/8/2010 6:45 AM 0.02 M M M M Light rain just started.
6/9/2010 6:45 AM 0.46 M M M M
6/10/2010 6:45 AM 0.00 0.0 M M M
6/11/2010 6:45 AM 0.19 M M M M
6/14/2010 6:45 AM 0.02 M M M M
6/15/2010 6:45 AM 0.01 M M M M
6/16/2010 6:45 AM 2.14 M M M M
6/17/2010 6:45 AM 0.00 0.0 M M M
6/18/2010 6:45 AM 0.01 M M M M
6/19/2010 6:45 AM 0.72 M M M M
6/21/2010 6:45 AM 0.40 M M M M
6/22/2010 6:45 AM 0.12 M M M M
6/23/2010 6:45 AM 0.00 0.0 M M M
6/24/2010 6:45 AM 1.61 M M M M .58" fell in the A.M. storms. 1.03" fell in the late afternoon/early evening storms
6/26/2010 6:45 AM 0.43 M M M M
6/27/2010 6:45 AM 0.00 0.0 M M M
6/28/2010 6:45 AM 1.75 M M M M
6/29/2010 6:45 AM 0.00 0.0 M M M
7/1/2010 6:45 AM 0.00 0.0 M M M
7/3/2010 6:45 AM 0.00 0.0 M M M
7/4/2010 6:45 AM 0.00 0.0 M M M
7/5/2010 6:45 AM 0.00 0.0 M M M
7/7/2010 6:45 AM 0.07 M M M M
7/8/2010 6:45 AM 0.18 M M M M
7/9/2010 6:45 AM 0.02 M M M M
7/11/2010 6:45 AM 0.00 0.0 M M M
7/12/2010 6:45 AM 0.74 M M M M
7/13/2010 6:45 AM 0.30 M M M M
7/14/2010 6:45 AM 0.00 0.0 M M M
7/15/2010 6:45 AM 0.00 0.0 M M M
7/18/2010 6:45 AM 0.00 0.0 M M M
7/19/2010 6:45 AM 0.01 M M M M
7/21/2010 6:45 AM 0.00 0.0 M M M
7/22/2010 6:45 AM 0.00 0.0 M M M
7/23/2010 6:45 AM 0.27 M M M M
7/28/2010 6:45 AM 0.00 0.0 M M M
7/29/2010 6:45 AM 0.18 M M M M
8/16/2010 6:45 AM 0.00 0.0 M M M
8/17/2010 6:45 AM 0.00 0.0 M M M
8/18/2010 6:45 AM 0.02 M M M M
8/19/2010 6:45 AM 0.00 0.0 M M M
8/20/2010 6:45 AM 0.00 0.0 M M M
8/21/2010 6:45 AM 0.33 M M M M
8/23/2010 6:45 AM 0.00 0.0 M M M
8/24/2010 6:45 AM 0.00 0.0 M M M
8/25/2010 6:45 AM 0.02 M M M M
8/26/2010 6:45 AM 0.00 0.0 M M M
8/27/2010 6:45 AM 0.00 0.0 M M M
8/28/2010 6:45 AM 0.00 0.0 M M M
8/29/2010 6:45 AM 0.00 0.0 M M M
8/30/2010 6:45 AM 0.00 0.0 M M M
8/31/2010 6:45 AM 0.00 0.0 M M M
9/1/2010 6:45 AM 0.05 M M M M Not raining when measurement was taken (6:45 A.M.)
9/2/2010 6:45 AM 0.15 M M M M Light rain
9/3/2010 6:45 AM 1.12 M M M M
9/4/2010 6:45 AM 0.02 M M M M
9/5/2010 6:45 AM 0.00 0.0 M M M
9/6/2010 6:45 AM T M M M M
9/8/2010 6:45 AM 0.00 0.0 M M M
9/9/2010 6:45 AM 0.00 0.0 M M M
9/10/2010 6:45 AM 0.00 0.0 M M M
9/11/2010 6:45 AM 0.04 M M M M Light rain
9/12/2010 6:45 AM 0.15 M M M M
9/13/2010 6:45 AM 0.00 0.0 M M M
9/14/2010 6:45 AM 0.00 0.0 M M M
9/16/2010 6:45 AM 0.20 M M M M
9/17/2010 6:45 AM T M M M M
9/18/2010 6:45 AM 0.00 0.0 M M M
9/22/2010 6:45 AM 0.36 M M M M
9/23/2010 6:45 AM 0.00 0.0 M M M
9/24/2010 6:45 AM 0.12 M M M M
9/25/2010 6:45 AM T M M M M
9/26/2010 6:45 AM 0.08 M M M M
9/27/2010 6:45 AM T M M M M
9/28/2010 6:45 AM 0.00 0.0 M M M
9/29/2010 6:45 AM 0.00 0.0 M M M
9/30/2010 6:45 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/18/2009 11/19/2009 12:00 AM 2 0.37 M M light sprinkles at 6:45
4/3/2010 4/04/2010 6:45 AM 2 0.32 M M
5/24/2010 5/26/2010 6:45 AM 3 0.00 M M
6/3/2010 6/04/2010 6:45 AM 2 0.09 M M
6/5/2010 6/06/2010 6:45 AM 2 0.24 M M
6/12/2010 6/13/2010 6:45 AM 2 0.35 M M
7/24/2010 7/25/2010 6:45 AM 2 4.38 M M
7/30/2010 8/06/2010 6:45 AM 8 2.48 M M
7/31/2010 8/01/2010 6:45 AM 2 1.34 M M
8/6/2010 8/15/2010 6:45 AM 10 0.76 M M
9/19/2010 9/20/2010 6:45 AM 2 0.29 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