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 17 3.24 7.67 17 7.67 11 0.00 6 0 11 0 0.0 0 0
Nov 17 3.46 0.74 5 0.38 2 0.36 3 1 2 0 0.0 0 0
Dec 17 2.48 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 18 1.95 0.11 2 0.11 2 0.00 0 0 1 1 0.1 1 1
Feb 18 1.77 4.22 5 4.22 5 0.00 0 0 5 0 0.1 1 0
March 18 2.45 1.08 12 1.08 10 0.00 2 1 7 2 1.0 3 3
April 18 3.66 1.43 16 1.11 8 0.32 8 1 8 0 1.2 1 1
May 18 4.36 2.08 17 1.72 10 0.36 7 1 9 0 0.0 0 0
June 18 4.38 7.91 28 7.91 28 0.00 0 0 15 2 0.0 0 0
July 18 4.27 4.96 31 4.96 31 0.00 0 0 8 1 0.0 0 0
Aug 18 3.94 4.29 31 4.29 26 0.00 5 1 10 1 0.0 0 0
Sept 18 3.21 3.74 11 3.74 11 0.00 0 0 9 0 0.0 0 0
Water Year Totals: 39.17" 38.23" 175 days 37.19" 144 1.04" 31 days 5 85 days 7 days 2.4" 6 days 5 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
10/1/2017
10/2/2017
10/3/2017
10/4/2017 0.03
10/5/2017 0.02
10/6/2017 0.51
10/7/2017 0.15
10/8/2017 0.58
10/9/2017
10/10/2017
10/11/2017 0.64
10/12/2017
10/13/2017
10/14/2017 0.11
10/15/2017 3.34
10/16/2017
10/17/2017
10/18/2017
10/19/2017
10/20/2017
10/21/2017
10/22/2017
10/23/2017 1.16
10/24/2017 0.61
10/25/2017 0.52
10/26/2017 **
10/27/2017 **
10/28/2017 **
10/29/2017 **
10/30/2017 **
10/31/2017 **
11/1/2017 **
11/2/2017 **
11/3/2017 0.36
11/4/2017 0.11
11/5/2017
11/6/2017
11/7/2017
11/8/2017
11/9/2017
11/10/2017
11/11/2017
11/12/2017
11/13/2017
11/14/2017
11/15/2017 0.27
11/16/2017
11/17/2017
11/18/2017
11/19/2017
11/20/2017
11/21/2017
11/22/2017
11/23/2017
11/24/2017
11/25/2017
11/26/2017
11/27/2017
11/28/2017
11/29/2017
11/30/2017
12/1/2017
12/2/2017
12/3/2017
12/4/2017
12/5/2017
12/6/2017
12/7/2017
12/8/2017
12/9/2017
12/10/2017
12/11/2017
12/12/2017
12/13/2017
12/14/2017
12/15/2017
12/16/2017
12/17/2017
12/18/2017
12/19/2017
12/20/2017
12/21/2017
12/22/2017
12/23/2017
12/24/2017
12/25/2017
12/26/2017
12/27/2017
12/28/2017
12/29/2017
12/30/2017
12/31/2017
Day of YearDaily PrcpMultiday Prcp
1/1/2018
1/2/2018
1/3/2018
1/4/2018
1/5/2018
1/6/2018
1/7/2018
1/8/2018
1/9/2018
1/10/2018
1/11/2018
1/12/2018
1/13/2018
1/14/2018
1/15/2018
1/16/2018
1/17/2018
1/18/2018
1/19/2018
1/20/2018
1/21/2018
1/22/2018
1/23/2018 0.11
1/24/2018
1/25/2018
1/26/2018
1/27/2018
1/28/2018
1/29/2018 T
1/30/2018
1/31/2018
2/1/2018
2/2/2018
2/3/2018
2/4/2018 M
2/5/2018
2/6/2018
2/7/2018
2/8/2018
2/9/2018 M
2/10/2018
2/11/2018
2/12/2018
2/13/2018
2/14/2018
2/15/2018
2/16/2018
2/17/2018
2/18/2018
2/19/2018 0.11
2/20/2018 2.37
2/21/2018 1.51
2/22/2018
2/23/2018 0.11
2/24/2018
2/25/2018 0.12
2/26/2018
2/27/2018
2/28/2018
3/1/2018 **
3/2/2018 M
3/3/2018
3/4/2018
3/5/2018
3/6/2018 0.17
3/7/2018 0.11
3/8/2018
3/9/2018
3/10/2018
3/11/2018
3/12/2018 T
3/13/2018
3/14/2018 0.04
3/15/2018
3/16/2018
3/17/2018 0.41
3/18/2018
3/19/2018
3/20/2018
3/21/2018
3/22/2018
3/23/2018
3/24/2018 0.00
3/25/2018
3/26/2018
3/27/2018 0.28
3/28/2018 0.02
3/29/2018 0.05
3/30/2018
3/31/2018 T
Day of YearDaily PrcpMultiday Prcp
4/1/2018 0.01
4/2/2018
4/3/2018 0.02
4/4/2018 0.06
4/5/2018
4/6/2018 0.05
4/7/2018
4/8/2018
4/9/2018 0.06
4/10/2018
4/11/2018
4/12/2018
4/13/2018
4/14/2018 0.36
4/15/2018 0.51
4/16/2018 **
4/17/2018 **
4/18/2018 **
4/19/2018 **
4/20/2018 **
4/21/2018 **
4/22/2018 **
4/23/2018 0.32
4/24/2018 0.04
4/25/2018
4/26/2018
4/27/2018
4/28/2018
4/29/2018
4/30/2018
5/1/2018
5/2/2018
5/3/2018 0.45
5/4/2018 0.03
5/5/2018
5/6/2018
5/7/2018
5/8/2018
5/9/2018 0.00
5/10/2018 0.09
5/11/2018
5/12/2018 0.15
5/13/2018 0.48
5/14/2018 0.10
5/15/2018 0.28
5/16/2018
5/17/2018 **
5/18/2018 **
5/19/2018 **
5/20/2018 **
5/21/2018 **
5/22/2018 **
5/23/2018 0.36
5/24/2018
5/25/2018
5/26/2018 0.03
5/27/2018
5/28/2018
5/29/2018
5/30/2018
5/31/2018 0.11
6/1/2018 1.99
6/2/2018 0.00
6/3/2018 0.10
6/4/2018
6/5/2018
6/6/2018 T
6/7/2018 0.00
6/8/2018 0.00
6/9/2018 0.00
6/10/2018 0.41
6/11/2018 0.11
6/12/2018 0.07
6/13/2018 T
6/14/2018 0.00
6/15/2018 0.00
6/16/2018 0.31
6/17/2018 0.12
6/18/2018 0.00
6/19/2018 0.19
6/20/2018 0.19
6/21/2018 1.31
6/22/2018 2.83
6/23/2018 0.08
6/24/2018 0.02
6/25/2018 0.00
6/26/2018 0.05
6/27/2018 0.13
6/28/2018 0.00
6/29/2018 0.00
6/30/2018 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2018 0.00
7/2/2018 T
7/3/2018 0.00
7/4/2018 0.00
7/5/2018 0.90
7/6/2018 1.94
7/7/2018 0.00
7/8/2018 0.00
7/9/2018 0.00
7/10/2018 0.00
7/11/2018 0.00
7/12/2018 0.00
7/13/2018 0.00
7/14/2018 0.02
7/15/2018 0.24
7/16/2018 0.00
7/17/2018 0.42
7/18/2018 0.00
7/19/2018 0.00
7/20/2018 0.00
7/21/2018 0.82
7/22/2018 0.55
7/23/2018 0.07
7/24/2018 0.00
7/25/2018 0.00
7/26/2018 0.00
7/27/2018 0.00
7/28/2018 0.00
7/29/2018 0.00
7/30/2018 0.00
7/31/2018 0.00
8/1/2018 0.00
8/2/2018 0.00
8/3/2018 0.00
8/4/2018 0.00
8/5/2018 0.00
8/6/2018 0.00
8/7/2018 0.04
8/8/2018 0.04
8/9/2018 0.02
8/10/2018 T
8/11/2018 0.00
8/12/2018 0.00
8/13/2018 0.00
8/14/2018 0.00
8/15/2018 0.00
8/16/2018 0.00
8/17/2018 0.35
8/18/2018 0.19
8/19/2018 0.00
8/20/2018 0.00
8/21/2018 1.82
8/22/2018 0.28
8/23/2018 **
8/24/2018 **
8/25/2018 **
8/26/2018 **
8/27/2018 M
8/28/2018 0.04
8/29/2018 1.43
8/30/2018 0.08
8/31/2018 0.00
9/1/2018 0.66
9/2/2018 0.02
9/3/2018 0.00
9/4/2018 1.19
9/5/2018 0.00
9/6/2018 0.11
9/7/2018 0.41
9/8/2018 0.09
9/9/2018
9/10/2018
9/11/2018
9/12/2018
9/13/2018
9/14/2018
9/15/2018
9/16/2018
9/17/2018
9/18/2018
9/19/2018
9/20/2018
9/21/2018 0.16
9/22/2018
9/23/2018
9/24/2018
9/25/2018 0.59
9/26/2018 0.51
9/27/2018
9/28/2018
9/29/2018
9/30/2018



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/4/2017 7:00 AM 0.03 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/5/2017 6:00 AM 0.02 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/6/2017 7:30 AM 0.51 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/7/2017 7:00 AM 0.15 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/8/2017 7:00 AM 0.58 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/11/2017 7:00 AM 0.64 M M M M still drizzling
10/14/2017 8:00 AM 0.11 M M M M not raining now
10/15/2017 7:00 AM 3.34 M M M M 1.34 fell from 12:30 thru 6:00, .93 fell from 8:30 to 9:30, and 1.07fell overnight. it is not currently raining
10/23/2017 7:00 AM 1.16 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
10/24/2017 7:00 AM 0.61 M M M M .41 fell during the day yesterday, .2 fell overnight. raining now.
10/25/2017 7:00 AM 0.52 M M M M Submitted via CoCoRaHS Observer for Android version 2.1.0 (build 21001)
11/4/2017 8:30 AM 0.11 M M M M still raining
11/15/2017 8:15 AM 0.27 M M M M finally replaced my stolen rain gauge
1/23/2018 8:00 AM 0.11 0.1 M 0.1 M
1/29/2018 7:30 AM T T M M M
2/4/2018 8:00 AM M 0.1 M M M my cylinder was knocked over, no melted snow measurement today
2/9/2018 7:00 AM M M M M M sorry, bracket broken and snow board missing. once all replaced will start reporting again {EDIT: Observer reported 0.00 for new precip but indicate in the notes that they did not have the equipment to measure precip. Changed report of 0.00 to NA to be more representative until observer can be contacted to verify. Submission Time Before EDIT: 2/09/2018 8:53 AM CoCoSTAFF DNT}
2/19/2018 7:00 AM 0.11 M M M M
2/20/2018 6:30 AM 2.37 M M M M
2/21/2018 7:00 AM 1.51 M M M M
2/23/2018 8:00 AM 0.11 M M M M
2/25/2018 7:00 AM 0.12 M M M M
3/6/2018 7:00 AM 0.17 M M M M there are small patches of snow on the ground but this was mostly a rain event
3/7/2018 7:00 AM 0.11 0.1 M 0.1 M snow on grassy areas only
3/12/2018 7:00 AM T M M M M the precipitation was small snow pellets. started just before 7.
3/14/2018 7:00 AM 0.04 0.8 M 0.8 M
3/17/2018 7:00 AM 0.41 0.1 M 0.1 M
3/24/2018 7:00 AM 0.00 M M M M
3/27/2018 7:00 AM 0.28 M M M M
3/28/2018 7:00 AM 0.02 M M M M
3/29/2018 8:00 AM 0.05 M M M M
3/31/2018 7:00 AM T M M M M
4/1/2018 7:00 AM 0.01 M M M M
4/3/2018 7:00 AM 0.02 M M M M
4/4/2018 7:00 AM 0.06 M M M M no white stuff on the ground
4/6/2018 7:00 AM 0.05 M M M M
4/9/2018 7:00 AM 0.06 1.2 M 1.2 M sigh.....
4/14/2018 8:30 AM 0.36 M M M M
4/15/2018 9:00 AM 0.51 M M M M
4/24/2018 7:00 AM 0.04 M M M M
5/3/2018 7:00 AM 0.45 M M M M
5/4/2018 7:45 AM 0.03 M M M M drizzling now
5/9/2018 7:00 AM 0.00 M M M M
5/10/2018 6:28 AM 0.09 M M M M
5/12/2018 7:30 AM 0.15 M M M M light rain falling now
5/13/2018 7:00 AM 0.48 M M M M
5/14/2018 7:30 AM 0.10 M M M M only a trace fell yesterday during the day. was not raining when i checked the guage
5/15/2018 7:00 AM 0.28 M M M M
5/26/2018 7:00 AM 0.03 M M M M
5/31/2018 6:25 AM 0.11 M M M M
6/1/2018 7:00 AM 1.99 M M M M 1.15 fell during the evening. .74 fell overnight.
6/2/2018 7:00 AM 0.00 M M M M
6/3/2018 7:00 AM 0.10 M M M M
6/6/2018 7:00 AM T M M M M nothing in gaige, but had brief rain/ thunder mid afternoon when front rumbled in
6/7/2018 7:00 AM 0.00 M M M M
6/8/2018 7:00 AM 0.00 M M M M
6/9/2018 7:30 AM 0.00 M M M M just started raining as ibwalked back to house.
6/10/2018 8:00 AM 0.41 M M M M still raining lightly now
6/11/2018 7:00 AM 0.11 M M M M
6/12/2018 7:00 AM 0.07 M M M M
6/13/2018 7:00 AM T M M M M
6/14/2018 7:00 AM 0.00 M M M M
6/15/2018 7:00 AM 0.00 M M M M
6/16/2018 7:00 AM 0.31 M M M M
6/17/2018 7:00 AM 0.12 M M M M
6/18/2018 6:30 AM 0.00 M M M M
6/19/2018 7:00 AM 0.19 M M M M
6/20/2018 7:00 AM 0.19 M M M M
6/21/2018 7:00 AM 1.31 M M M M currently raining lightly
6/22/2018 7:30 AM 2.83 M M M M yikes
6/23/2018 7:00 AM 0.08 M M M M
6/24/2018 7:00 AM 0.02 M M M M
6/25/2018 7:00 AM 0.00 M M M M
6/26/2018 8:00 AM 0.05 M M M M
6/27/2018 7:00 AM 0.13 M M M M everything seemed to keep missing us tothe north.
6/28/2018 7:00 AM 0.00 M M M M
6/29/2018 7:00 AM 0.00 M M M M
6/30/2018 7:00 AM 0.00 M M M M
7/1/2018 7:00 AM 0.00 M M M M
7/2/2018 7:00 AM T M M M M everything missed us
7/3/2018 7:00 AM 0.00 M M M M
7/4/2018 7:00 AM 0.00 M M M M
7/5/2018 7:00 AM 0.90 M M M M
7/6/2018 7:00 AM 1.94 M M M M
7/7/2018 7:00 AM 0.00 M M M M
7/8/2018 7:00 AM 0.00 M M M M
7/9/2018 7:00 AM 0.00 M M M M
7/10/2018 7:00 AM 0.00 0.0 M M M
7/11/2018 7:00 AM 0.00 0.0 M M M
7/12/2018 7:00 AM 0.00 0.0 M M M
7/13/2018 7:00 AM 0.00 0.0 M M M
7/14/2018 8:00 AM 0.02 M M M M
7/15/2018 7:00 AM 0.24 M M M M
7/16/2018 7:00 AM 0.00 M M M M
7/17/2018 7:00 AM 0.42 M M M M
7/18/2018 7:00 AM 0.00 M M M M
7/19/2018 7:00 AM 0.00 M M M M
7/20/2018 7:00 AM 0.00 M M M M
7/21/2018 7:00 AM 0.82 M M M M .71 fell in short bursts during the day yesterday, the other .11 fell overnight
7/22/2018 8:45 AM 0.55 M M M M raining hard now
7/23/2018 7:00 AM 0.07 M M M M
7/24/2018 7:00 AM 0.00 0.0 M M M
7/25/2018 7:00 AM 0.00 0.0 M M M
7/26/2018 7:00 AM 0.00 0.0 M M M
7/27/2018 7:00 AM 0.00 0.0 M M M
7/28/2018 7:00 AM 0.00 0.0 M M M
7/29/2018 7:00 AM 0.00 0.0 M M M
7/30/2018 7:00 AM 0.00 0.0 M M M
7/31/2018 7:00 AM 0.00 0.0 M M M
8/1/2018 7:00 AM 0.00 0.0 M M M
8/2/2018 7:00 AM 0.00 0.0 M M M
8/3/2018 7:00 AM 0.00 0.0 M M M
8/4/2018 7:00 AM 0.00 0.0 M M M
8/5/2018 7:00 AM 0.00 0.0 M M M
8/6/2018 7:00 AM 0.00 0.0 M M M
8/7/2018 7:00 AM 0.04 M M M M
8/8/2018 8:15 AM 0.04 M M M M drizzling now
8/9/2018 7:00 AM 0.02 M M M M
8/10/2018 7:00 AM T M M M M
8/11/2018 7:00 AM 0.00 M M M M
8/12/2018 7:00 AM 0.00 M M M M
8/13/2018 7:00 AM 0.00 M M M M
8/14/2018 7:00 AM 0.00 M M M M
8/15/2018 7:00 AM 0.00 M M M M
8/16/2018 7:00 AM 0.00 M M M M
8/17/2018 7:00 AM 0.35 M M M M still drizzling
8/18/2018 7:00 AM 0.19 M M M M
8/19/2018 7:00 AM 0.00 M M M M
8/20/2018 7:00 AM 0.00 M M M M
8/21/2018 7:00 AM 1.82 M M M M 1.43 fell before 9:00 last night, .39 fell overnight.
8/22/2018 7:00 AM 0.28 M M M M
8/28/2018 8:00 AM 0.04 M M M M not raining right now, but thunder in the area
8/29/2018 7:00 AM 1.43 M M M M
8/30/2018 6:30 AM 0.08 M M M M
8/31/2018 7:00 AM 0.00 M M M M
9/1/2018 7:00 AM 0.66 M M M M not raining now
9/2/2018 7:00 AM 0.02 M M M M
9/3/2018 7:00 AM 0.00 M M M M
9/4/2018 7:00 AM 1.19 M M M M
9/5/2018 7:00 AM 0.00 M M M M
9/6/2018 7:00 AM 0.11 M M M M still raining.
9/7/2018 7:00 AM 0.41 M M M M
9/8/2018 7:00 AM 0.09 M M M M
9/21/2018 7:00 AM 0.16 M M M M
9/25/2018 8:30 AM 0.59 M M M M
9/26/2018 7:00 AM 0.51 M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/26/2017 11/03/2017 12:00 PM 9 0.36 M M
3/1/2018 3/02/2018 7:00 AM 2 M M M
4/16/2018 4/23/2018 3:00 PM 8 0.32 M M
5/17/2018 5/23/2018 7:00 AM 7 0.36 M M
8/23/2018 8/27/2018 6:30 PM 5 M 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