Station Overview Station Location
Station Number IL-CK-81 Latitude 42.119192
Station Name Arlington Heights 1.8 NNW Longitude -87.99515
County Cook Elevation (ft) 725



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 14 2.96 3.88 30 3.88 30 0.00 0 0 12 0 0.0 0 0
Nov 14 2.99 2.76 29 0.96 27 1.80 2 1 7 2 1.5 2 0
Dec 14 2.23 0.75 31 0.75 31 0.00 0 0 4 2 0.0 0 0
Jan 15 1.73 1.12 12 0.50 9 0.62 3 1 3 0 7.2 3 0
Feb 15 1.70 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 15 2.32 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 15 3.44 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 15 4.09 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 15 4.00 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 15 3.80 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 15 4.46 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 15 3.38 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 37.10" 8.51" 102 days 6.09" 97 2.42" 5 days 2 26 days 4 days 8.7" 5 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
10/1/2014 0.00
10/2/2014 0.02
10/3/2014 1.22
10/4/2014 0.05
10/5/2014 0.05
10/6/2014 0.01
10/7/2014 0.02
10/8/2014 0.00
10/9/2014 0.00
10/10/2014 0.00
10/11/2014 0.00
10/12/2014 0.00
10/13/2014 0.09
10/14/2014 0.88
10/15/2014 1.48
10/16/2014 0.04
10/17/2014 0.00
10/18/2014 0.00
10/19/2014 0.00
10/20/2014 0.01
10/21/2014 0.00
10/22/2014 0.00
10/23/2014 0.00
10/24/2014 0.00
10/25/2014 0.00
10/26/2014
10/27/2014 0.00
10/28/2014 0.00
10/29/2014 0.00
10/30/2014 0.00
10/31/2014 0.01
11/1/2014
11/2/2014 0.00
11/3/2014 0.00
11/4/2014 0.01
11/5/2014 0.00
11/6/2014 0.00
11/7/2014 0.00
11/8/2014 0.02
11/9/2014 0.00
11/10/2014 0.00
11/11/2014 0.00
11/12/2014 0.01
11/13/2014 T
11/14/2014 0.00
11/15/2014 0.00
11/16/2014 **
11/17/2014 1.80
11/18/2014 0.02
11/19/2014 0.00
11/20/2014 0.00
11/21/2014 0.00
11/22/2014 0.11
11/23/2014 0.00
11/24/2014 0.52
11/25/2014 0.27
11/26/2014 0.00
11/27/2014 0.00
11/28/2014 T
11/29/2014 0.00
11/30/2014 0.00
12/1/2014 0.00
12/2/2014 0.00
12/3/2014 0.00
12/4/2014 0.00
12/5/2014 0.00
12/6/2014 0.00
12/7/2014 0.00
12/8/2014 0.03
12/9/2014 0.15
12/10/2014 0.00
12/11/2014 0.00
12/12/2014 0.00
12/13/2014 0.00
12/14/2014 0.00
12/15/2014 0.00
12/16/2014 0.10
12/17/2014 T
12/18/2014 0.00
12/19/2014 0.00
12/20/2014 0.00
12/21/2014 0.00
12/22/2014 0.00
12/23/2014 0.47
12/24/2014 T
12/25/2014 0.00
12/26/2014 0.00
12/27/2014 0.00
12/28/2014 0.00
12/29/2014 0.00
12/30/2014 0.00
12/31/2014 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2015 0.00
1/2/2015 0.00
1/3/2015 **
1/4/2015 **
1/5/2015 0.62
1/6/2015 0.13
1/7/2015 0.00
1/8/2015 0.00
1/9/2015 0.18
1/10/2015 0.00
1/11/2015 0.00
1/12/2015 0.19
1/13/2015
1/14/2015
1/15/2015
1/16/2015
1/17/2015
1/18/2015
1/19/2015
1/20/2015
1/21/2015
1/22/2015
1/23/2015
1/24/2015
1/25/2015
1/26/2015
1/27/2015
1/28/2015
1/29/2015
1/30/2015
1/31/2015
2/1/2015
2/2/2015
2/3/2015
2/4/2015
2/5/2015
2/6/2015
2/7/2015
2/8/2015
2/9/2015
2/10/2015
2/11/2015
2/12/2015
2/13/2015
2/14/2015
2/15/2015
2/16/2015
2/17/2015
2/18/2015
2/19/2015
2/20/2015
2/21/2015
2/22/2015
2/23/2015
2/24/2015
2/25/2015
2/26/2015
2/27/2015
2/28/2015
3/1/2015
3/2/2015
3/3/2015
3/4/2015
3/5/2015
3/6/2015
3/7/2015
3/8/2015
3/9/2015
3/10/2015
3/11/2015
3/12/2015
3/13/2015
3/14/2015
3/15/2015
3/16/2015
3/17/2015
3/18/2015
3/19/2015
3/20/2015
3/21/2015
3/22/2015
3/23/2015
3/24/2015
3/25/2015
3/26/2015
3/27/2015
3/28/2015
3/29/2015
3/30/2015
3/31/2015
Day of YearDaily PrcpMultiday Prcp
4/1/2015
4/2/2015
4/3/2015
4/4/2015
4/5/2015
4/6/2015
4/7/2015
4/8/2015
4/9/2015
4/10/2015
4/11/2015
4/12/2015
4/13/2015
4/14/2015
4/15/2015
4/16/2015
4/17/2015
4/18/2015
4/19/2015
4/20/2015
4/21/2015
4/22/2015
4/23/2015
4/24/2015
4/25/2015
4/26/2015
4/27/2015
4/28/2015
4/29/2015
4/30/2015
5/1/2015
5/2/2015
5/3/2015
5/4/2015
5/5/2015
5/6/2015
5/7/2015
5/8/2015
5/9/2015
5/10/2015
5/11/2015
5/12/2015
5/13/2015
5/14/2015
5/15/2015
5/16/2015
5/17/2015
5/18/2015
5/19/2015
5/20/2015
5/21/2015
5/22/2015
5/23/2015
5/24/2015
5/25/2015
5/26/2015
5/27/2015
5/28/2015
5/29/2015
5/30/2015
5/31/2015
6/1/2015
6/2/2015
6/3/2015
6/4/2015
6/5/2015
6/6/2015
6/7/2015
6/8/2015
6/9/2015
6/10/2015
6/11/2015
6/12/2015
6/13/2015
6/14/2015
6/15/2015
6/16/2015
6/17/2015
6/18/2015
6/19/2015
6/20/2015
6/21/2015
6/22/2015
6/23/2015
6/24/2015
6/25/2015
6/26/2015
6/27/2015
6/28/2015
6/29/2015
6/30/2015
Day of YearDaily PrcpMultiday Prcp
7/1/2015
7/2/2015
7/3/2015
7/4/2015
7/5/2015
7/6/2015
7/7/2015
7/8/2015
7/9/2015
7/10/2015
7/11/2015
7/12/2015
7/13/2015
7/14/2015
7/15/2015
7/16/2015
7/17/2015
7/18/2015
7/19/2015
7/20/2015
7/21/2015
7/22/2015
7/23/2015
7/24/2015
7/25/2015
7/26/2015
7/27/2015
7/28/2015
7/29/2015
7/30/2015
7/31/2015
8/1/2015
8/2/2015
8/3/2015
8/4/2015
8/5/2015
8/6/2015
8/7/2015
8/8/2015
8/9/2015
8/10/2015
8/11/2015
8/12/2015
8/13/2015
8/14/2015
8/15/2015
8/16/2015
8/17/2015
8/18/2015
8/19/2015
8/20/2015
8/21/2015
8/22/2015
8/23/2015
8/24/2015
8/25/2015
8/26/2015
8/27/2015
8/28/2015
8/29/2015
8/30/2015
8/31/2015
9/1/2015
9/2/2015
9/3/2015
9/4/2015
9/5/2015
9/6/2015
9/7/2015
9/8/2015
9/9/2015
9/10/2015
9/11/2015
9/12/2015
9/13/2015
9/14/2015
9/15/2015
9/16/2015
9/17/2015
9/18/2015
9/19/2015
9/20/2015
9/21/2015
9/22/2015
9/23/2015
9/24/2015
9/25/2015
9/26/2015
9/27/2015
9/28/2015
9/29/2015
9/30/2015



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2014 7:00 AM 0.00 0.0 M M M
10/2/2014 7:00 AM 0.02 M M M M Sent via CoCoRaHS Observer for iOS
10/3/2014 7:41 AM 1.22 M M M M Sent via CoCoRaHS Observer for iOS
10/4/2014 7:00 AM 0.05 M M M M Sent via CoCoRaHS Observer for iOS
10/5/2014 7:00 AM 0.05 M M M M Sent via CoCoRaHS Observer for iOS
10/6/2014 7:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
10/7/2014 7:00 AM 0.02 M M M M Sent via CoCoRaHS Observer for iOS
10/8/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/9/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/10/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/11/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/12/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/13/2014 7:00 AM 0.09 M M M M Sent via CoCoRaHS Observer for iOS
10/14/2014 7:00 AM 0.88 M M M M Sent via CoCoRaHS Observer for iOS
10/15/2014 7:00 AM 1.48 M M M M Sent via CoCoRaHS Observer for iOS
10/16/2014 7:00 AM 0.04 M M M M Sent via CoCoRaHS Observer for iOS
10/17/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/18/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/19/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/20/2014 7:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
10/21/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/22/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/23/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/24/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/25/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/27/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/28/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/29/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/30/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
10/31/2014 7:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
11/2/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/3/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/4/2014 7:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
11/5/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/6/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/7/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/8/2014 7:00 AM 0.02 M M M M Sent via CoCoRaHS Observer for iOS
11/9/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/10/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/11/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/12/2014 7:00 AM 0.01 M M M M Sent via CoCoRaHS Observer for iOS
11/13/2014 7:00 AM T T M M M
11/14/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/15/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/18/2014 7:00 AM 0.02 0.5 M M M Sent via CoCoRaHS Observer for iOS
11/19/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/20/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/21/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/22/2014 7:00 AM 0.11 M M M M Sent via CoCoRaHS Observer for iOS
11/23/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/24/2014 7:00 AM 0.52 M M M M Sent via CoCoRaHS Observer for iOS
11/25/2014 7:00 AM 0.27 1.0 M M M Sent via CoCoRaHS Observer for iOS
11/26/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/27/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/28/2014 7:00 AM T T M M M
11/29/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
11/30/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/1/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/2/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/3/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/4/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/5/2014 6:50 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/6/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/7/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/8/2014 7:00 AM 0.03 M M M M Sent via CoCoRaHS Observer for iOS
12/9/2014 7:00 AM 0.15 M M M M Sent via CoCoRaHS Observer for iOS
12/10/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/11/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/12/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/13/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/14/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/15/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/16/2014 7:00 AM 0.10 M M M M Sent via CoCoRaHS Observer for iOS
12/17/2014 7:00 AM T M M M M Sent via CoCoRaHS Observer for iOS
12/18/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/19/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/20/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/21/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/22/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/23/2014 7:00 AM 0.47 M M M M Sent via CoCoRaHS Observer for iOS
12/24/2014 7:00 AM T M M M M Sent via CoCoRaHS Observer for iOS
12/25/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/26/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/27/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/28/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/29/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/30/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
12/31/2014 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/1/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/2/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/6/2015 7:00 AM 0.13 2.2 M M M Sent via CoCoRaHS Observer for iOS
1/7/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/8/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/9/2015 7:00 AM 0.18 2.5 M M M Sent via CoCoRaHS Observer for iOS
1/10/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/11/2015 7:00 AM 0.00 M M M M Sent via CoCoRaHS Observer for iOS
1/12/2015 7:00 AM 0.19 2.5 M M M Sent via CoCoRaHS Observer for iOS



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/16/2014 11/17/2014 7:00 AM 2 1.80 M M Water Equivalent .04in. The snowfall was dry fluffy snow.
1/3/2015 1/05/2015 11:30 AM 3 0.62 2.0 M .62 fell since Sat. Jan 3. What amount Of precipitation snow melted core vs. rain no clue. Snow fall was the 2.0 inch reported above was the amount that fell during the 1/3 to 1/5 period.



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