Station Overview Station Location
Station Number IL-CK-69 Latitude 41.4928
Station Name Park Forest 0.8 NNE Longitude -87.681489
County Cook Elevation (ft) 722



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 19 3.24 3.50 9 3.50 9 0.00 0 0 8 0 0.0 0 0
Nov 19 3.46 1.23 8 1.09 5 0.14 3 1 5 0 1.1 1 0
Dec 19 2.48 0.15 9 0.15 3 0.00 6 0 2 1 0.0 0 0
Jan 20 1.95 5.02 31 3.73 27 1.29 4 2 8 3 4.0 6 2
Feb 20 1.77 0.99 9 0.99 9 0.00 0 0 4 0 7.3 4 1
March 20 2.45 3.04 15 2.51 10 0.53 5 1 8 1 4.2 1 0
April 20 3.66 4.98 15 4.98 15 0.00 0 0 14 0 2.3 2 0
May 20 4.36 6.68 30 6.68 30 0.00 0 0 12 0 0.0 0 0
June 20 4.38 5.46 23 5.46 23 0.00 0 0 11 2 0.0 0 0
July 20 4.27 4.42 29 3.63 23 0.79 6 1 8 0 0.0 0 0
Aug 20 3.94 1.42 26 1.42 26 0.00 0 0 5 1 0.0 0 0
Sept 20 3.21 2.63 29 2.63 29 0.00 0 0 9 0 0.0 0 0
Water Year Totals: 39.17" 39.52" 233 days 36.77" 209 2.75" 24 days 5 94 days 8 days 18.9" 14 days 3 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
10/1/2019
10/2/2019 0.03
10/3/2019
10/4/2019
10/5/2019
10/6/2019 0.29
10/7/2019
10/8/2019
10/9/2019
10/10/2019
10/11/2019 0.14
10/12/2019
10/13/2019
10/14/2019
10/15/2019
10/16/2019
10/17/2019
10/18/2019
10/19/2019
10/20/2019
10/21/2019 0.00
10/22/2019 0.14
10/23/2019
10/24/2019
10/25/2019
10/26/2019
10/27/2019 1.75
10/28/2019
10/29/2019 0.11
10/30/2019 0.47
10/31/2019 0.57
11/1/2019 0.12
11/2/2019
11/3/2019
11/4/2019
11/5/2019
11/6/2019
11/7/2019
11/8/2019
11/9/2019
11/10/2019 **
11/11/2019 **
11/12/2019 0.14
11/13/2019
11/14/2019
11/15/2019
11/16/2019
11/17/2019
11/18/2019
11/19/2019
11/20/2019 0.04
11/21/2019 0.61
11/22/2019 0.06
11/23/2019
11/24/2019
11/25/2019
11/26/2019
11/27/2019 0.26
11/28/2019
11/29/2019
11/30/2019
12/1/2019
12/2/2019
12/3/2019
12/4/2019
12/5/2019
12/6/2019
12/7/2019
12/8/2019
12/9/2019 0.11
12/10/2019 0.04
12/11/2019 T
12/12/2019
12/13/2019
12/14/2019
12/15/2019
12/16/2019
12/17/2019
12/18/2019
12/19/2019
12/20/2019
12/21/2019
12/22/2019
12/23/2019
12/24/2019
12/25/2019
12/26/2019 **
12/27/2019 **
12/28/2019 **
12/29/2019 **
12/30/2019 **
12/31/2019 **
Day of YearDaily PrcpMultiday Prcp
1/1/2020 **
1/2/2020 1.17
1/3/2020 0.00
1/4/2020 0.83
1/5/2020 T
1/6/2020 0.00
1/7/2020 0.00
1/8/2020 0.00
1/9/2020 0.00
1/10/2020 T
1/11/2020 1.55
1/12/2020 0.14
1/13/2020 T
1/14/2020 0.00
1/15/2020 0.00
1/16/2020 0.00
1/17/2020 0.00
1/18/2020 0.61
1/19/2020 0.00
1/20/2020 0.03
1/21/2020 0.00
1/22/2020 0.00
1/23/2020 0.14
1/24/2020 0.24
1/25/2020 0.19
1/26/2020 **
1/27/2020 0.12
1/28/2020 0.00
1/29/2020 0.00
1/30/2020 0.00
1/31/2020 0.00
2/1/2020 0.00
2/2/2020 0.00
2/3/2020 0.00
2/4/2020 0.00
2/5/2020 0.00
2/6/2020 0.33
2/7/2020 M
2/8/2020
2/9/2020
2/10/2020
2/11/2020
2/12/2020
2/13/2020 0.37
2/14/2020
2/15/2020
2/16/2020
2/17/2020
2/18/2020
2/19/2020
2/20/2020
2/21/2020
2/22/2020
2/23/2020
2/24/2020
2/25/2020 0.11
2/26/2020 0.18
2/27/2020
2/28/2020
2/29/2020
3/1/2020
3/2/2020
3/3/2020
3/4/2020 0.01
3/5/2020
3/6/2020
3/7/2020
3/8/2020
3/9/2020 0.03
3/10/2020 0.85
3/11/2020
3/12/2020
3/13/2020
3/14/2020 0.00
3/15/2020 **
3/16/2020 **
3/17/2020 **
3/18/2020 **
3/19/2020 0.53
3/20/2020 0.34
3/21/2020
3/22/2020 T
3/23/2020 0.41
3/24/2020
3/25/2020
3/26/2020
3/27/2020 0.06
3/28/2020 0.68
3/29/2020 0.13
3/30/2020
3/31/2020
Day of YearDaily PrcpMultiday Prcp
4/1/2020
4/2/2020
4/3/2020
4/4/2020 0.16
4/5/2020
4/6/2020
4/7/2020 0.44
4/8/2020 0.04
4/9/2020 0.02
4/10/2020
4/11/2020 0.00
4/12/2020 0.29
4/13/2020 0.12
4/14/2020 0.03
4/15/2020 0.06
4/16/2020
4/17/2020 0.24
4/18/2020
4/19/2020
4/20/2020
4/21/2020
4/22/2020
4/23/2020
4/24/2020
4/25/2020 0.35
4/26/2020 0.42
4/27/2020
4/28/2020 0.37
4/29/2020 0.98
4/30/2020 1.46
5/1/2020 0.03
5/2/2020 0.00
5/3/2020 0.00
5/4/2020 0.00
5/5/2020 0.19
5/6/2020 0.00
5/7/2020 0.00
5/8/2020 0.00
5/9/2020 0.00
5/10/2020 0.00
5/11/2020 0.51
5/12/2020
5/13/2020 0.00
5/14/2020 0.01
5/15/2020 1.52
5/16/2020 0.00
5/17/2020 0.59
5/18/2020 1.61
5/19/2020 0.07
5/20/2020 0.00
5/21/2020 0.00
5/22/2020 0.00
5/23/2020 0.00
5/24/2020 1.14
5/25/2020 0.00
5/26/2020 0.00
5/27/2020 0.11
5/28/2020 0.04
5/29/2020 0.86
5/30/2020 0.00
5/31/2020 0.00
6/1/2020 0.00
6/2/2020 T
6/3/2020 0.00
6/4/2020 0.08
6/5/2020 0.00
6/6/2020 0.02
6/7/2020 0.00
6/8/2020 0.00
6/9/2020 0.00
6/10/2020 0.71
6/11/2020 0.54
6/12/2020 0.00
6/13/2020 0.00
6/14/2020 0.00
6/15/2020 0.00
6/16/2020
6/17/2020
6/18/2020
6/19/2020
6/20/2020
6/21/2020 0.11
6/22/2020 0.72
6/23/2020 2.06
6/24/2020
6/25/2020 0.03
6/26/2020 T
6/27/2020 0.73
6/28/2020 0.02
6/29/2020
6/30/2020 0.44
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.53
7/2/2020 0.00
7/3/2020 0.00
7/4/2020 0.00
7/5/2020
7/6/2020 **
7/7/2020 **
7/8/2020 **
7/9/2020 **
7/10/2020 **
7/11/2020 0.79
7/12/2020 0.16
7/13/2020 0.21
7/14/2020 0.00
7/15/2020 0.00
7/16/2020 0.82
7/17/2020 0.00
7/18/2020 0.00
7/19/2020 0.21
7/20/2020 1.47
7/21/2020 0.00
7/22/2020 0.19
7/23/2020 0.00
7/24/2020 0.00
7/25/2020 0.00
7/26/2020 0.00
7/27/2020 0.04
7/28/2020 0.00
7/29/2020
7/30/2020 0.00
7/31/2020 0.00
8/1/2020 0.00
8/2/2020 0.49
8/3/2020 0.38
8/4/2020 0.00
8/5/2020 0.00
8/6/2020 0.00
8/7/2020 0.00
8/8/2020 0.00
8/9/2020 0.00
8/10/2020 0.03
8/11/2020 0.49
8/12/2020 0.00
8/13/2020 0.00
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 T
8/17/2020 0.03
8/18/2020
8/19/2020 0.00
8/20/2020 0.00
8/21/2020 0.00
8/22/2020 0.00
8/23/2020 0.00
8/24/2020 0.00
8/25/2020 0.00
8/26/2020 0.00
8/27/2020
8/28/2020
8/29/2020 0.00
8/30/2020
8/31/2020
9/1/2020 0.00
9/2/2020 0.87
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.13
9/7/2020 0.61
9/8/2020 0.16
9/9/2020 0.23
9/10/2020 0.00
9/11/2020 0.00
9/12/2020 0.02
9/13/2020 0.26
9/14/2020 0.00
9/15/2020 0.00
9/16/2020 0.00
9/17/2020 0.00
9/18/2020 0.00
9/19/2020 0.00
9/20/2020 0.00
9/21/2020 0.00
9/22/2020 0.00
9/23/2020 0.00
9/24/2020 0.00
9/25/2020 0.00
9/26/2020 0.00
9/27/2020 0.00
9/28/2020 0.29
9/29/2020 0.06
9/30/2020



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2019 7:15 AM 0.03 M M M M
10/6/2019 7:00 AM 0.29 M M M M
10/11/2019 7:00 AM 0.14 M M M M
10/21/2019 7:00 AM 0.00 M M M M
10/22/2019 7:00 AM 0.14 M M M M
10/27/2019 7:00 AM 1.75 M M M M
10/29/2019 7:00 AM 0.11 M M M M
10/30/2019 7:30 AM 0.47 M M M M to the best of my knowledge, all precip was rain.
10/31/2019 7:00 AM 0.57 M M M M
11/1/2019 9:00 AM 0.12 1.1 M M M
11/20/2019 7:00 AM 0.04 M M M M
11/21/2019 8:15 AM 0.61 M M M M
11/22/2019 7:00 AM 0.06 M M M M
11/27/2019 9:15 AM 0.26 M M M M
12/9/2019 7:00 AM 0.11 M M M M
12/10/2019 7:00 AM 0.04 M M M M
12/11/2019 7:00 AM T T M M M
1/3/2020 7:00 AM 0.00 0.0 M M M
1/4/2020 7:00 AM 0.83 1.1 M M M
1/5/2020 7:00 AM T M M M M
1/6/2020 7:00 AM 0.00 0.0 M M M
1/7/2020 7:00 AM 0.00 0.0 M M M
1/8/2020 7:00 AM 0.00 0.0 M M M
1/9/2020 7:00 AM 0.00 0.0 M M M
1/10/2020 7:45 AM T M M M M
1/11/2020 8:10 AM 1.55 M M M M
1/12/2020 8:00 AM 0.14 0.2 M M M
1/13/2020 7:00 AM T M M M M there is nothing in the gauge, but all the pavement is damp.
1/14/2020 7:00 AM 0.00 M M M M
1/15/2020 7:00 AM 0.00 0.0 M M M
1/16/2020 7:00 AM 0.00 0.0 M M M
1/17/2020 7:00 AM 0.00 0.0 M M M
1/18/2020 8:00 AM 0.61 1.3 M M M the snow accumulation this morning was mostly slush
1/19/2020 7:00 AM 0.00 0.0 M M M
1/20/2020 7:00 AM 0.03 0.1 M M M
1/21/2020 7:00 AM 0.00 0.0 M M M
1/22/2020 7:00 AM 0.00 0.0 M M M
1/23/2020 7:00 AM 0.14 1.1 M M M
1/24/2020 7:00 AM 0.24 M M 0.5 M Most of the "snow on the ground is a combination of snow, slush and ice.
1/25/2020 7:00 AM 0.19 0.2 M 0.4 M
1/28/2020 7:00 AM 0.00 0.0 M M M
1/29/2020 7:00 AM 0.00 0.0 M M M
1/30/2020 7:00 AM 0.00 0.0 M M M
1/31/2020 7:00 AM 0.00 0.0 M M M
2/1/2020 7:00 AM 0.00 0.0 M M M
2/2/2020 7:00 AM 0.00 0.0 M M M
2/3/2020 7:00 AM 0.00 0.0 M M M
2/4/2020 7:00 AM 0.00 0.0 M M M
2/5/2020 7:00 AM 0.00 0.0 M M M
2/6/2020 7:00 AM 0.33 2.2 M M M
2/7/2020 7:00 AM M 0.9 M 3.1 M EDIT: 1.16" precip set to NA pending followup with observer. Probably a typo. OST 2/07/2020 7:54 AM -CCR Staff SDH-
2/13/2020 7:00 AM 0.37 3.1 M M M
2/25/2020 7:00 AM 0.11 M M M M
2/26/2020 7:45 AM 0.18 1.1 M M M snow measured w/o snowboard, which went MIA.
3/4/2020 7:00 AM 0.01 M M M M
3/9/2020 7:00 AM 0.03 M M M M
3/10/2020 7:00 AM 0.85 M M M M
3/14/2020 7:00 AM 0.00 M M M M
3/20/2020 8:00 AM 0.34 M M M M
3/22/2020 7:00 AM T M M M M
3/23/2020 7:00 AM 0.41 4.2 M M M
3/27/2020 7:00 AM 0.06 M M M M
3/28/2020 7:30 AM 0.68 M M M M still drizzling
3/29/2020 7:00 AM 0.13 M M M M
4/4/2020 8:30 AM 0.16 M M M M
4/7/2020 7:00 AM 0.44 M M M M
4/8/2020 7:00 AM 0.04 M M M M only rained for about 5 minutes
4/9/2020 7:00 AM 0.02 M M M M
4/11/2020 7:00 AM 0.00 M M M M
4/12/2020 7:00 AM 0.29 M M M M
4/13/2020 7:00 AM 0.12 M M M M
4/14/2020 7:00 AM 0.03 M M M M
4/15/2020 8:00 AM 0.06 0.4 M M M
4/17/2020 7:40 AM 0.24 1.9 M M M
4/25/2020 8:45 AM 0.35 M M M M
4/26/2020 7:00 AM 0.42 M M M M
4/28/2020 7:00 AM 0.37 M M M M
4/29/2020 7:00 AM 0.98 M M M M
4/30/2020 7:00 AM 1.46 M M M M
5/1/2020 7:00 AM 0.03 M M M M
5/2/2020 7:00 AM 0.00 M M M M
5/3/2020 7:00 AM 0.00 0.0 M M M
5/4/2020 7:00 AM 0.00 0.0 M M M
5/5/2020 8:30 AM 0.19 M M M M
5/6/2020 7:00 AM 0.00 0.0 M M M
5/7/2020 7:00 AM 0.00 0.0 M M M
5/8/2020 7:00 AM 0.00 0.0 M M M
5/9/2020 7:00 AM 0.00 0.0 M M M
5/10/2020 7:00 AM 0.00 0.0 M M M
5/11/2020 7:00 AM 0.51 M M M M
5/13/2020 7:00 AM 0.00 0.0 M M M
5/14/2020 7:00 AM 0.01 M M M M
5/15/2020 7:00 AM 1.52 M M M M 1.05 fell overnight, .47 from yesterday morning
5/16/2020 7:00 AM 0.00 0.0 M M M
5/17/2020 7:45 AM 0.59 M M M M
5/18/2020 7:00 AM 1.61 M M M M
5/19/2020 7:00 AM 0.07 M M M M
5/20/2020 7:00 AM 0.00 0.0 M M M
5/21/2020 7:00 AM 0.00 0.0 M M M
5/22/2020 7:00 AM 0.00 0.0 M M M
5/23/2020 7:00 AM 0.00 0.0 M M M
5/24/2020 6:30 AM 1.14 M M M M other than some momentarily heavy downpours and brief rice sized hail, there weren't any severe storm characteristics.
5/25/2020 7:00 AM 0.00 0.0 M M M
5/26/2020 7:00 AM 0.00 0.0 M M M
5/27/2020 7:00 AM 0.11 M M M M
5/28/2020 7:00 AM 0.04 M M M M
5/29/2020 7:00 AM 0.86 M M M M
5/30/2020 7:00 AM 0.00 0.0 M M M
5/31/2020 7:00 AM 0.00 0.0 M M M
6/1/2020 7:00 AM 0.00 0.0 M M M
6/2/2020 7:00 AM T M M M M
6/3/2020 7:00 AM 0.00 M M M M
6/4/2020 7:00 AM 0.08 M M M M
6/5/2020 7:00 AM 0.00 0.0 M M M
6/6/2020 7:00 AM 0.02 M M M M
6/7/2020 7:00 AM 0.00 0.0 M M M
6/8/2020 7:00 AM 0.00 0.0 M M M
6/9/2020 7:00 AM 0.00 0.0 M M M
6/10/2020 7:00 AM 0.71 M M M M
6/11/2020 7:00 AM 0.54 M M M M
6/12/2020 7:00 AM 0.00 0.0 M M M
6/13/2020 7:00 AM 0.00 0.0 M M M
6/14/2020 7:00 AM 0.00 0.0 M M M
6/15/2020 7:00 AM 0.00 0.0 M M M
6/21/2020 7:00 AM 0.11 M M M M
6/22/2020 7:00 AM 0.72 M M M M some thunder and lightning, but no high winds or other severe characteristics
6/23/2020 7:00 AM 2.06 M M M M
6/25/2020 7:00 AM 0.03 M M M M
6/26/2020 7:00 AM T M M M M
6/27/2020 7:00 AM 0.73 M M M M
6/28/2020 7:00 AM 0.02 M M M M
6/30/2020 7:00 AM 0.44 M M M M
7/1/2020 7:00 AM 0.53 M M M M
7/2/2020 7:00 AM 0.00 0.0 M M M
7/3/2020 7:00 AM 0.00 0.0 M M M
7/4/2020 7:00 AM 0.00 0.0 M M M
7/12/2020 7:30 AM 0.16 M M M M still drizzling after tstorm
7/13/2020 7:00 AM 0.21 M M M M
7/14/2020 7:00 AM 0.00 0.0 M M M
7/15/2020 7:00 AM 0.00 0.0 M M M
7/16/2020 7:00 AM 0.82 M M M M
7/17/2020 7:00 AM 0.00 0.0 M M M
7/18/2020 7:00 AM 0.00 0.0 M M M
7/19/2020 8:30 AM 0.21 M M M M still raining
7/20/2020 7:00 AM 1.47 M M M M
7/21/2020 7:00 AM 0.00 0.0 M M M
7/22/2020 7:00 AM 0.19 M M M M
7/23/2020 7:00 AM 0.00 0.0 M M M
7/24/2020 7:00 AM 0.00 0.0 M M M
7/25/2020 7:00 AM 0.00 0.0 M M M
7/26/2020 7:00 AM 0.00 0.0 M M M
7/27/2020 7:00 AM 0.04 M M M M
7/28/2020 7:00 AM 0.00 0.0 M M M
7/30/2020 7:00 AM 0.00 0.0 M M M
7/31/2020 7:00 AM 0.00 0.0 M M M
8/1/2020 7:00 AM 0.00 0.0 M M M
8/2/2020 7:00 AM 0.49 M M M M
8/3/2020 7:00 AM 0.38 M M M M
8/4/2020 7:00 AM 0.00 0.0 M M M
8/5/2020 7:00 AM 0.00 0.0 M M M
8/6/2020 7:00 AM 0.00 0.0 M M M
8/7/2020 7:00 AM 0.00 0.0 M M M
8/8/2020 7:00 AM 0.00 0.0 M M M
8/9/2020 7:00 AM 0.00 0.0 M M M
8/10/2020 7:00 AM 0.03 M M M M
8/11/2020 7:00 AM 0.49 M M M M no significant wind damage, just a few smaller branches
8/12/2020 7:00 AM 0.00 0.0 M M M
8/13/2020 7:00 AM 0.00 0.0 M M M
8/14/2020 7:00 AM 0.00 0.0 M M M
8/15/2020 7:00 AM 0.00 0.0 M M M
8/16/2020 7:00 AM T M M M M
8/17/2020 7:00 AM 0.03 M M M M
8/19/2020 7:00 AM 0.00 0.0 M M M
8/20/2020 7:00 AM 0.00 0.0 M M M
8/21/2020 7:00 AM 0.00 0.0 M M M
8/22/2020 7:00 AM 0.00 0.0 M M M
8/23/2020 7:00 AM 0.00 0.0 M M M
8/24/2020 7:00 AM 0.00 0.0 M M M
8/25/2020 7:00 AM 0.00 0.0 M M M
8/26/2020 7:00 AM 0.00 0.0 M M M
8/29/2020 7:00 AM 0.00 M M M M
9/1/2020 7:00 AM 0.00 0.0 M M M
9/2/2020 7:00 AM 0.87 M M M M
9/3/2020 7:00 AM 0.00 0.0 M M M
9/4/2020 7:00 AM 0.00 0.0 M M M
9/5/2020 7:00 AM 0.00 0.0 M M M
9/6/2020 7:30 AM 0.13 M M M M still raining
9/7/2020 7:00 AM 0.61 M M M M only.03 fell overnight
9/8/2020 6:30 AM 0.16 M M M M currently not raining
9/9/2020 7:00 AM 0.23 M M M M
9/10/2020 7:00 AM 0.00 0.0 M M M
9/11/2020 7:00 AM 0.00 0.0 M M M
9/12/2020 7:00 AM 0.02 M M M M
9/13/2020 7:00 AM 0.26 M M M M
9/14/2020 7:00 AM 0.00 0.0 M M M
9/15/2020 7:00 AM 0.00 0.0 M M M
9/16/2020 7:00 AM 0.00 0.0 M M M
9/17/2020 7:00 AM 0.00 0.0 M M M
9/18/2020 7:00 AM 0.00 0.0 M M M
9/19/2020 7:00 AM 0.00 0.0 M M M
9/20/2020 7:00 AM 0.00 0.0 M M M
9/21/2020 7:00 AM 0.00 0.0 M M M
9/22/2020 7:00 AM 0.00 0.0 M M M
9/23/2020 7:00 AM 0.00 0.0 M M M
9/24/2020 7:00 AM 0.00 0.0 M M M
9/25/2020 7:00 AM 0.00 0.0 M M M
9/26/2020 7:00 AM 0.00 0.0 M M M
9/27/2020 7:00 AM 0.00 0.0 M M M
9/28/2020 7:00 AM 0.29 M M M M
9/29/2020 7:00 AM 0.06 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/10/2019 11/12/2019 7:00 AM 3 0.14 1.9 M
12/26/2019 1/02/2020 9:45 AM 8 1.17 0.2 M
1/26/2020 1/27/2020 4:00 PM 2 0.12 M M
3/15/2020 3/19/2020 8:00 AM 5 0.53 M M
7/6/2020 7/11/2020 6:30 PM 6 0.79 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