Station Overview Station Location
Station Number IL-CK-202 Latitude 41.8818702697754
Station Name River Forest 0.9 SSE Longitude -87.8149948120117
County Cook Elevation (ft) 630



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 16 3.09 3.88 11 3.88 11 0.00 0 0 11 0 0.0 0 0
Nov 16 3.28 1.88 7 1.88 7 0.00 0 0 7 0 0.0 0 0
Dec 16 2.41 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 17 1.97 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 17 1.85 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 17 2.56 3.19 7 3.19 7 0.00 0 0 7 0 0.0 0 0
April 17 3.57 5.84 11 5.84 11 0.00 0 0 11 0 0.0 0 0
May 17 4.21 4.97 14 4.97 14 0.00 0 0 13 1 0.0 0 0
June 17 4.14 2.82 12 2.79 8 0.03 4 1 8 0 0.0 0 0
July 17 3.97 5.58 21 1.84 1 3.74 20 2 1 0 0.0 0 0
Aug 17 4.37 0.33 3 0.00 0 0.33 3 1 0 0 0.0 0 0
Sept 17 3.43 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 38.85" 28.49" 86 days 24.39" 59 4.10" 27 days 4 58 days 1 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
10/1/2016
10/2/2016 0.99
10/3/2016 0.01
10/4/2016
10/5/2016
10/6/2016 0.36
10/7/2016 0.27
10/8/2016
10/9/2016
10/10/2016
10/11/2016
10/12/2016 0.01
10/13/2016 0.44
10/14/2016
10/15/2016
10/16/2016 0.42
10/17/2016
10/18/2016
10/19/2016
10/20/2016 0.06
10/21/2016
10/22/2016
10/23/2016
10/24/2016
10/25/2016
10/26/2016 0.20
10/27/2016 0.89
10/28/2016
10/29/2016
10/30/2016 0.23
10/31/2016
11/1/2016
11/2/2016
11/3/2016 0.47
11/4/2016
11/5/2016
11/6/2016
11/7/2016
11/8/2016
11/9/2016 0.03
11/10/2016
11/11/2016 0.01
11/12/2016
11/13/2016
11/14/2016
11/15/2016
11/16/2016
11/17/2016
11/18/2016
11/19/2016 0.14
11/20/2016
11/21/2016
11/22/2016
11/23/2016 0.18
11/24/2016
11/25/2016
11/26/2016
11/27/2016
11/28/2016 0.31
11/29/2016 0.74
11/30/2016
12/1/2016
12/2/2016
12/3/2016
12/4/2016
12/5/2016
12/6/2016
12/7/2016
12/8/2016
12/9/2016
12/10/2016
12/11/2016
12/12/2016
12/13/2016
12/14/2016
12/15/2016
12/16/2016
12/17/2016
12/18/2016
12/19/2016
12/20/2016
12/21/2016
12/22/2016
12/23/2016
12/24/2016
12/25/2016
12/26/2016
12/27/2016
12/28/2016
12/29/2016
12/30/2016
12/31/2016
Day of YearDaily PrcpMultiday Prcp
1/1/2017
1/2/2017
1/3/2017
1/4/2017
1/5/2017
1/6/2017
1/7/2017
1/8/2017
1/9/2017
1/10/2017
1/11/2017
1/12/2017
1/13/2017
1/14/2017
1/15/2017
1/16/2017
1/17/2017
1/18/2017
1/19/2017
1/20/2017
1/21/2017
1/22/2017
1/23/2017
1/24/2017
1/25/2017
1/26/2017
1/27/2017
1/28/2017
1/29/2017
1/30/2017
1/31/2017
2/1/2017
2/2/2017
2/3/2017
2/4/2017
2/5/2017
2/6/2017
2/7/2017
2/8/2017
2/9/2017
2/10/2017
2/11/2017
2/12/2017
2/13/2017
2/14/2017
2/15/2017
2/16/2017
2/17/2017
2/18/2017
2/19/2017
2/20/2017
2/21/2017
2/22/2017
2/23/2017
2/24/2017
2/25/2017
2/26/2017
2/27/2017
2/28/2017
3/1/2017
3/2/2017
3/3/2017
3/4/2017
3/5/2017
3/6/2017
3/7/2017 0.21
3/8/2017
3/9/2017
3/10/2017
3/11/2017
3/12/2017
3/13/2017
3/14/2017
3/15/2017
3/16/2017
3/17/2017
3/18/2017
3/19/2017
3/20/2017
3/21/2017
3/22/2017
3/23/2017
3/24/2017 0.03
3/25/2017 0.31
3/26/2017 0.51
3/27/2017 0.12
3/28/2017
3/29/2017
3/30/2017 1.30
3/31/2017 0.71
Day of YearDaily PrcpMultiday Prcp
4/1/2017
4/2/2017
4/3/2017 0.02
4/4/2017
4/5/2017 0.61
4/6/2017 1.31
4/7/2017
4/8/2017
4/9/2017
4/10/2017 0.02
4/11/2017 0.34
4/12/2017
4/13/2017 0.23
4/14/2017
4/15/2017 0.11
4/16/2017 0.59
4/17/2017
4/18/2017
4/19/2017
4/20/2017 0.12
4/21/2017
4/22/2017
4/23/2017
4/24/2017
4/25/2017
4/26/2017
4/27/2017 0.28
4/28/2017
4/29/2017
4/30/2017 2.21
5/1/2017 0.78
5/2/2017 0.22
5/3/2017 0.01
5/4/2017
5/5/2017
5/6/2017 0.09
5/7/2017
5/8/2017
5/9/2017 0.21
5/10/2017
5/11/2017 1.61
5/12/2017
5/13/2017
5/14/2017
5/15/2017
5/16/2017
5/17/2017
5/18/2017 0.17
5/19/2017
5/20/2017 0.26
5/21/2017 0.46
5/22/2017
5/23/2017 0.05
5/24/2017 0.60
5/25/2017
5/26/2017
5/27/2017 0.50
5/28/2017
5/29/2017 0.01
5/30/2017
5/31/2017 T
6/1/2017
6/2/2017
6/3/2017
6/4/2017
6/5/2017
6/6/2017
6/7/2017
6/8/2017
6/9/2017 0.05
6/10/2017
6/11/2017
6/12/2017
6/13/2017
6/14/2017
6/15/2017 1.23
6/16/2017 0.04
6/17/2017 0.03
6/18/2017 0.11
6/19/2017 **
6/20/2017 **
6/21/2017 **
6/22/2017 0.03
6/23/2017 0.67
6/24/2017
6/25/2017
6/26/2017
6/27/2017
6/28/2017
6/29/2017 0.44
6/30/2017 0.22
Day of YearDaily PrcpMultiday Prcp
7/1/2017
7/2/2017
7/3/2017 **
7/4/2017 **
7/5/2017 **
7/6/2017 **
7/7/2017 **
7/8/2017 **
7/9/2017 **
7/10/2017 **
7/11/2017 **
7/12/2017 **
7/13/2017 2.70
7/14/2017
7/15/2017
7/16/2017
7/17/2017
7/18/2017
7/19/2017
7/20/2017 1.84
7/21/2017
7/22/2017
7/23/2017 **
7/24/2017 **
7/25/2017 **
7/26/2017 **
7/27/2017 **
7/28/2017 **
7/29/2017 **
7/30/2017 **
7/31/2017 1.04
8/1/2017 **
8/2/2017 **
8/3/2017 0.33
8/4/2017
8/5/2017
8/6/2017
8/7/2017
8/8/2017
8/9/2017
8/10/2017
8/11/2017
8/12/2017
8/13/2017
8/14/2017
8/15/2017
8/16/2017
8/17/2017
8/18/2017
8/19/2017
8/20/2017
8/21/2017
8/22/2017
8/23/2017
8/24/2017
8/25/2017
8/26/2017
8/27/2017
8/28/2017
8/29/2017
8/30/2017
8/31/2017
9/1/2017
9/2/2017
9/3/2017
9/4/2017
9/5/2017
9/6/2017
9/7/2017
9/8/2017
9/9/2017
9/10/2017
9/11/2017
9/12/2017
9/13/2017
9/14/2017
9/15/2017
9/16/2017
9/17/2017
9/18/2017
9/19/2017
9/20/2017
9/21/2017
9/22/2017
9/23/2017
9/24/2017
9/25/2017
9/26/2017
9/27/2017
9/28/2017
9/29/2017
9/30/2017



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2016 4:30 AM 0.99 M M M M
10/3/2016 8:45 AM 0.01 M M M M
10/6/2016 8:30 AM 0.36 M M M M
10/7/2016 9:00 AM 0.27 M M M M
10/12/2016 7:30 AM 0.01 M M M M
10/13/2016 9:00 AM 0.44 M M M M
10/16/2016 8:00 AM 0.42 M M M M
10/20/2016 7:00 AM 0.06 M M M M
10/26/2016 9:00 AM 0.20 M M M M
10/27/2016 8:30 AM 0.89 M M M M
10/30/2016 8:00 AM 0.23 M M M M
11/3/2016 9:00 AM 0.47 M M M M
11/9/2016 9:00 AM 0.03 M M M M
11/11/2016 10:15 AM 0.01 M M M M
11/19/2016 9:00 AM 0.14 M M M M
11/23/2016 7:45 AM 0.18 M M M M
11/28/2016 9:00 AM 0.31 M M M M
11/29/2016 9:00 AM 0.74 M M M M
3/7/2017 9:00 AM 0.21 M M M M
3/24/2017 9:00 AM 0.03 M M M M
3/25/2017 10:30 AM 0.31 M M M M
3/26/2017 10:00 AM 0.51 M M M M
3/27/2017 10:00 AM 0.12 M M M M
3/30/2017 9:15 AM 1.30 M M M M
3/31/2017 10:00 AM 0.71 M M M M
4/3/2017 9:00 AM 0.02 M M M M
4/5/2017 9:00 AM 0.61 M M M M
4/6/2017 7:00 AM 1.31 M M M M
4/10/2017 9:00 AM 0.02 M M M M
4/11/2017 9:00 AM 0.34 M M M M
4/13/2017 10:00 AM 0.23 M M M M
4/15/2017 8:30 AM 0.11 M M M M
4/16/2017 9:00 AM 0.59 M M M M
4/20/2017 11:00 AM 0.12 M M M M
4/27/2017 9:00 AM 0.28 M M M M
4/30/2017 8:30 AM 2.21 M M M M
5/1/2017 9:30 AM 0.78 M M M M
5/2/2017 8:00 AM 0.22 M M M M
5/3/2017 9:00 AM 0.01 M M M M
5/6/2017 9:00 AM 0.09 M M M M
5/9/2017 10:00 AM 0.21 M M M M
5/11/2017 10:30 AM 1.61 M M M M
5/18/2017 9:00 AM 0.17 M M M M
5/20/2017 9:30 AM 0.26 M M M M
5/21/2017 9:00 AM 0.46 M M M M
5/23/2017 9:00 AM 0.05 M M M M
5/24/2017 9:00 AM 0.60 M M M M
5/27/2017 8:00 AM 0.50 M M M M
5/29/2017 9:00 AM 0.01 M M M M
5/31/2017 9:00 AM T M M M M
6/9/2017 7:00 AM 0.05 M M M M
6/15/2017 7:45 AM 1.23 M M M M
6/16/2017 9:00 AM 0.04 M M M M
6/17/2017 8:00 AM 0.03 M M M M
6/18/2017 7:00 AM 0.11 M M M M
6/23/2017 8:00 AM 0.67 M M M M
6/29/2017 7:30 AM 0.44 M M M M
6/30/2017 8:30 AM 0.22 M M M M
7/20/2017 9:00 AM 1.84 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
6/19/2017 6/22/2017 9:00 AM 4 0.03 M M
7/3/2017 7/13/2017 9:00 AM 11 2.70 M M J. Morrill - Edited on 2017-08-02: Made observation for 7/13 "NA" and moved 0.04" of precipitation to this multi-day report. Extended multi-day report to reflect the observation time in the observation for 7/13.
7/23/2017 7/31/2017 9:00 AM 9 1.04 M M
8/1/2017 8/03/2017 8:00 AM 3 0.33 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