Station Overview Station Location
Station Number IL-LK-18 Latitude 42.346386
Station Name Grayslake 0.7 WSW Longitude -88.050699
County Lake Elevation (ft) 804



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 2.92 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 19 2.83 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 19 2.18 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 20 1.72 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 20 1.71 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 20 2.32 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 20 3.52 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 20 4.04 2.28 13 2.28 13 0.00 0 0 7 1 0.0 0 0
June 20 3.91 3.32 29 3.32 29 0.00 0 0 9 1 0.0 0 0
July 20 3.65 3.30 30 3.30 30 0.00 0 0 9 1 0.0 0 0
Aug 20 3.91 3.65 31 2.94 29 0.71 2 1 5 0 0.0 0 0
Sept 20 3.34 4.57 29 4.57 29 0.00 0 0 10 3 0.0 0 0
Water Year Totals: 36.05" 17.12" 132 days 16.41" 130 0.71" 2 days 1 40 days 6 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
10/1/2019
10/2/2019
10/3/2019
10/4/2019
10/5/2019
10/6/2019
10/7/2019
10/8/2019
10/9/2019
10/10/2019
10/11/2019
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
10/22/2019
10/23/2019
10/24/2019
10/25/2019
10/26/2019
10/27/2019
10/28/2019
10/29/2019
10/30/2019
10/31/2019
11/1/2019
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
11/13/2019
11/14/2019
11/15/2019
11/16/2019
11/17/2019
11/18/2019
11/19/2019
11/20/2019
11/21/2019
11/22/2019
11/23/2019
11/24/2019
11/25/2019
11/26/2019
11/27/2019
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
12/10/2019
12/11/2019
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
1/3/2020
1/4/2020
1/5/2020
1/6/2020
1/7/2020
1/8/2020
1/9/2020
1/10/2020
1/11/2020
1/12/2020
1/13/2020
1/14/2020
1/15/2020
1/16/2020
1/17/2020
1/18/2020
1/19/2020
1/20/2020
1/21/2020
1/22/2020
1/23/2020
1/24/2020
1/25/2020
1/26/2020
1/27/2020
1/28/2020
1/29/2020
1/30/2020
1/31/2020
2/1/2020
2/2/2020
2/3/2020
2/4/2020
2/5/2020
2/6/2020
2/7/2020
2/8/2020
2/9/2020
2/10/2020
2/11/2020
2/12/2020
2/13/2020
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
2/26/2020
2/27/2020
2/28/2020
2/29/2020
3/1/2020
3/2/2020
3/3/2020
3/4/2020
3/5/2020
3/6/2020
3/7/2020
3/8/2020
3/9/2020
3/10/2020
3/11/2020
3/12/2020
3/13/2020
3/14/2020
3/15/2020
3/16/2020
3/17/2020
3/18/2020
3/19/2020
3/20/2020
3/21/2020
3/22/2020
3/23/2020
3/24/2020
3/25/2020
3/26/2020
3/27/2020
3/28/2020
3/29/2020
3/30/2020
3/31/2020
Day of YearDaily PrcpMultiday Prcp
4/1/2020
4/2/2020
4/3/2020
4/4/2020
4/5/2020
4/6/2020
4/7/2020
4/8/2020
4/9/2020
4/10/2020
4/11/2020
4/12/2020
4/13/2020
4/14/2020
4/15/2020
4/16/2020
4/17/2020
4/18/2020
4/19/2020
4/20/2020
4/21/2020
4/22/2020
4/23/2020
4/24/2020
4/25/2020
4/26/2020
4/27/2020
4/28/2020
4/29/2020
4/30/2020
5/1/2020
5/2/2020
5/3/2020
5/4/2020
5/5/2020
5/6/2020
5/7/2020
5/8/2020
5/9/2020
5/10/2020
5/11/2020
5/12/2020
5/13/2020
5/14/2020
5/15/2020
5/16/2020
5/17/2020
5/18/2020
5/19/2020 0.11
5/20/2020 0.14
5/21/2020 0.00
5/22/2020 T
5/23/2020 0.00
5/24/2020 0.85
5/25/2020 0.02
5/26/2020 0.18
5/27/2020 0.00
5/28/2020 0.02
5/29/2020 0.96
5/30/2020 0.00
5/31/2020 0.00
6/1/2020 0.00
6/2/2020 0.00
6/3/2020 0.14
6/4/2020 0.00
6/5/2020
6/6/2020 0.00
6/7/2020 0.00
6/8/2020 0.00
6/9/2020 0.00
6/10/2020 0.22
6/11/2020 0.15
6/12/2020 0.00
6/13/2020 T
6/14/2020 0.00
6/15/2020 0.00
6/16/2020 0.00
6/17/2020 0.00
6/18/2020 0.00
6/19/2020 0.00
6/20/2020 0.00
6/21/2020 0.32
6/22/2020 0.00
6/23/2020 0.36
6/24/2020 0.04
6/25/2020 0.02
6/26/2020 0.00
6/27/2020 1.59
6/28/2020 0.00
6/29/2020 0.00
6/30/2020 0.48
Day of YearDaily PrcpMultiday Prcp
7/1/2020 0.00
7/2/2020 0.00
7/3/2020 0.00
7/4/2020 0.00
7/5/2020 0.00
7/6/2020 0.00
7/7/2020 0.00
7/8/2020 0.47
7/9/2020 0.50
7/10/2020 1.30
7/11/2020
7/12/2020 0.00
7/13/2020 0.00
7/14/2020 0.00
7/15/2020 0.02
7/16/2020 0.45
7/17/2020 0.00
7/18/2020 0.00
7/19/2020 0.06
7/20/2020 0.02
7/21/2020 0.00
7/22/2020 0.02
7/23/2020 0.00
7/24/2020 0.00
7/25/2020 0.00
7/26/2020 0.00
7/27/2020 0.46
7/28/2020 T
7/29/2020 0.00
7/30/2020 0.00
7/31/2020 0.00
8/1/2020 0.00
8/2/2020 0.00
8/3/2020 **
8/4/2020 0.71
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 0.70
8/11/2020 0.86
8/12/2020 0.00
8/13/2020 0.00
8/14/2020 0.00
8/15/2020 0.00
8/16/2020 0.00
8/17/2020 0.00
8/18/2020 0.00
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 1.20
8/25/2020 0.17
8/26/2020 0.01
8/27/2020 0.00
8/28/2020 0.00
8/29/2020 0.00
8/30/2020 0.00
8/31/2020 0.00
9/1/2020 T
9/2/2020 0.05
9/3/2020 0.00
9/4/2020 0.00
9/5/2020 0.00
9/6/2020 0.18
9/7/2020
9/8/2020 1.31
9/9/2020 1.64
9/10/2020 0.03
9/11/2020 0.34
9/12/2020 0.29
9/13/2020 0.29
9/14/2020 T
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 0.41
9/29/2020 0.03
9/30/2020 T



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
5/19/2020 6:00 AM 0.11 M M M M Trace of rain still falling.
5/20/2020 6:00 AM 0.14 M M M M
5/21/2020 6:00 AM 0.00 0.0 M M M
5/22/2020 6:00 AM T M M M M
5/23/2020 6:00 AM 0.00 0.0 M M M
5/24/2020 6:00 AM 0.85 M M M M
5/25/2020 7:00 AM 0.02 M M M M Raining during collection.
5/26/2020 6:00 AM 0.18 M M M M
5/27/2020 6:00 AM 0.00 0.0 M M M
5/28/2020 6:00 AM 0.02 M M M M
5/29/2020 6:00 AM 0.96 M M M M
5/30/2020 6:00 AM 0.00 0.0 M M M
5/31/2020 6:00 AM 0.00 0.0 M M M
6/1/2020 6:00 AM 0.00 0.0 M M M
6/2/2020 6:00 AM 0.00 0.0 M M M
6/3/2020 6:00 AM 0.14 M M M M
6/4/2020 6:00 AM 0.00 0.0 M M M
6/6/2020 6:00 AM 0.00 0.0 M M M
6/7/2020 6:00 AM 0.00 0.0 M M M
6/8/2020 6:00 AM 0.00 0.0 M M M
6/9/2020 6:00 AM 0.00 0.0 M M M
6/10/2020 6:00 AM 0.22 M M M M Heavy winds.
6/11/2020 6:00 AM 0.15 M M M M
6/12/2020 6:00 AM 0.00 0.0 M M M
6/13/2020 6:00 AM T M M M M
6/14/2020 6:00 AM 0.00 0.0 M M M
6/15/2020 6:00 AM 0.00 0.0 M M M
6/16/2020 6:00 AM 0.00 0.0 M M M
6/17/2020 6:00 AM 0.00 0.0 M M M
6/18/2020 6:00 AM 0.00 0.0 M M M
6/19/2020 6:00 AM 0.00 0.0 M M M
6/20/2020 6:00 AM 0.00 0.0 M M M
6/21/2020 6:00 AM 0.32 M M M M 0.18 inches fell around noon and the rest in the evening.
6/22/2020 6:00 AM 0.00 0.0 M M M
6/23/2020 6:00 AM 0.36 M M M M 0.22 inches fell before 4 pm and 0.14 inches fell after 4 pm.
6/24/2020 6:00 AM 0.04 M M M M Passing shower lasted briefly around 7 pm.
6/25/2020 6:00 AM 0.02 M M M M
6/26/2020 6:00 AM 0.00 0.0 M M M
6/27/2020 6:00 AM 1.59 M M M M Rain on and off all day long yesterday followed by a windy gully washer last evening. Despite the surprising rain quantity, little flooding or standing water. The ground was pretty dry. Some large weak limbs and small weak trees down in spots.
6/28/2020 6:00 AM 0.00 0.0 M M M
6/29/2020 6:00 AM 0.00 0.0 M M M
6/30/2020 6:00 AM 0.48 M M M M
7/1/2020 6:00 AM 0.00 0.0 M M M
7/2/2020 6:00 AM 0.00 0.0 M M M
7/3/2020 6:00 AM 0.00 0.0 M M M
7/4/2020 6:00 AM 0.00 0.0 M M M
7/5/2020 6:00 AM 0.00 0.0 M M M
7/6/2020 6:00 AM 0.00 0.0 M M M
7/7/2020 6:00 AM 0.00 M M M M
7/8/2020 6:10 AM 0.47 M M M M 0.35 inches of the total fell before 7 pm last night
7/9/2020 6:00 AM 0.50 M M M M
7/10/2020 6:30 AM 1.30 M M M M Strong winds last night knocked clusters of oak leaves from the trees. Rain was falling this morning while reading the guage. all rain fell began after 7 pm last night.
7/12/2020 6:00 AM 0.00 0.0 M M M
7/13/2020 6:00 AM 0.00 0.0 M M M
7/14/2020 6:00 AM 0.00 M M M M
7/15/2020 6:00 AM 0.02 M M M M
7/16/2020 6:00 AM 0.45 M M M M
7/17/2020 6:00 AM 0.00 M M M M
7/18/2020 6:00 AM 0.00 M M M M
7/19/2020 6:00 AM 0.06 M M M M
7/20/2020 6:00 AM 0.02 M M M M
7/21/2020 6:00 AM 0.00 M M M M
7/22/2020 6:00 AM 0.02 M M M M
7/23/2020 6:00 AM 0.00 M M M M
7/24/2020 6:00 AM 0.00 M M M M
7/25/2020 6:00 AM 0.00 M M M M
7/26/2020 6:00 AM 0.00 M M M M
7/27/2020 6:00 AM 0.46 M M M M
7/28/2020 6:00 AM T M M M M
7/29/2020 6:00 AM 0.00 M M M M
7/30/2020 6:00 AM 0.00 M M M M
7/31/2020 6:00 AM 0.00 M M M M
8/1/2020 6:00 AM 0.00 M M M M
8/2/2020 6:00 AM 0.00 M M M M
8/5/2020 6:00 AM 0.00 M M M M
8/6/2020 6:00 AM 0.00 M M M M
8/7/2020 6:00 AM 0.00 M M M M
8/8/2020 6:00 AM 0.00 M M M M
8/9/2020 6:00 AM 0.00 M M M M
8/10/2020 6:00 AM 0.70 M M M M
8/11/2020 6:00 AM 0.86 M M M M Severe Storm, High Wind and Tornado warnings last night from about 4-5 p.m. Minor tree branches down. Most if not all of the rain fell over this short event.
8/12/2020 6:00 AM 0.00 M M M M
8/13/2020 6:00 AM 0.00 M M M M
8/14/2020 6:00 AM 0.00 M M M M
8/15/2020 6:00 AM 0.00 M M M M
8/16/2020 6:00 AM 0.00 M M M M
8/17/2020 6:00 AM 0.00 M M M M
8/18/2020 6:00 AM 0.00 M M M M
8/19/2020 6:00 AM 0.00 M M M M
8/20/2020 6:00 AM 0.00 M M M M
8/21/2020 6:00 AM 0.00 M M M M
8/22/2020 6:00 AM 0.00 M M M M
8/23/2020 6:00 AM 0.00 M M M M
8/24/2020 6:00 AM 1.20 M M M M
8/25/2020 6:00 AM 0.17 M M M M
8/26/2020 6:00 AM 0.01 M M M M
8/27/2020 6:00 AM 0.00 0.0 M M M
8/28/2020 6:00 AM 0.00 M M M M
8/29/2020 6:00 AM 0.00 M M M M
8/30/2020 6:00 AM 0.00 M M M M
8/31/2020 6:00 AM 0.00 M M M M
9/1/2020 6:00 AM T M M M M
9/2/2020 6:00 AM 0.05 M M M M
9/3/2020 6:00 AM 0.00 M M M M
9/4/2020 6:00 AM 0.00 M M M M
9/5/2020 6:00 AM 0.00 M M M M
9/6/2020 6:55 AM 0.18 M M M M Raining during observation.
9/8/2020 6:55 AM 1.31 M M M M Rained most of the night but ground is so dry there is no ponding yet.
9/9/2020 6:55 AM 1.64 M M M M
9/10/2020 6:55 AM 0.03 M M M M
9/11/2020 7:31 AM 0.34 M M M M
9/12/2020 7:10 AM 0.29 M M M M Raining during reading
9/13/2020 6:00 AM 0.29 M M M M
9/14/2020 6:00 AM T M M M M
9/15/2020 6:00 AM 0.00 0.0 M M M
9/16/2020 6:00 AM 0.00 0.0 M M M
9/17/2020 6:00 AM 0.00 0.0 M M M
9/18/2020 6:00 AM 0.00 0.0 M M M
9/19/2020 6:00 AM 0.00 0.0 M M M
9/20/2020 6:00 AM 0.00 0.0 M M M
9/21/2020 6:00 AM 0.00 0.0 M M M
9/22/2020 6:00 AM 0.00 0.0 M M M
9/23/2020 6:00 AM 0.00 0.0 M M M
9/24/2020 6:00 AM 0.00 0.0 M M M
9/25/2020 6:00 AM 0.00 M M M M
9/26/2020 6:00 AM 0.00 M M M M
9/27/2020 6:00 AM 0.00 M M M M
9/28/2020 6:10 AM 0.41 M M M M Rain started last evening.
9/29/2020 6:00 AM 0.03 M M M M
9/30/2020 6:00 AM T M M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
8/3/2020 8/04/2020 6:00 AM 2 0.71 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