Station Overview Station Location
Station Number IL-WL-91 Latitude 41.72404
Station Name Naperville 2.8 SSW Longitude -88.173411
County Will Elevation (ft) 680



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 11 3.00 1.34 19 1.34 10 0.00 9 2 4 1 0.0 0 0
Nov 11 3.25 1.51 5 1.50 3 0.01 2 1 2 0 0.0 0 0
Dec 11 2.31 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 12 1.76 0.40 1 0.40 1 0.00 0 0 1 0 7.3 1 1
Feb 12 1.72 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 12 2.40 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 12 3.56 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 12 4.05 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 12 4.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 12 4.03 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 12 4.20 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 12 3.24 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 37.72" 3.25" 25 days 3.24" 14 0.01" 11 days 3 7 days 1 days 7.3" 1 days 1 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
10/1/2011
10/2/2011
10/3/2011
10/4/2011
10/5/2011
10/6/2011
10/7/2011
10/8/2011
10/9/2011
10/10/2011
10/11/2011
10/12/2011 0.00
10/13/2011 1.11
10/14/2011 0.00
10/15/2011 0.00
10/16/2011 0.11
10/17/2011
10/18/2011 **
10/19/2011 **
10/20/2011 **
10/21/2011 **
10/22/2011 **
10/23/2011 **
10/24/2011 0.00
10/25/2011 T
10/26/2011 0.00
10/27/2011 0.00
10/28/2011 **
10/29/2011 0.00
10/30/2011 0.05
10/31/2011 0.07
11/1/2011
11/2/2011 0.00
11/3/2011 M
11/4/2011 0.14
11/5/2011
11/6/2011 **
11/7/2011 0.01
11/8/2011 1.36
11/9/2011
11/10/2011
11/11/2011
11/12/2011
11/13/2011
11/14/2011
11/15/2011
11/16/2011
11/17/2011
11/18/2011
11/19/2011
11/20/2011
11/21/2011
11/22/2011
11/23/2011
11/24/2011
11/25/2011
11/26/2011
11/27/2011
11/28/2011
11/29/2011
11/30/2011
12/1/2011
12/2/2011
12/3/2011
12/4/2011
12/5/2011
12/6/2011
12/7/2011
12/8/2011
12/9/2011
12/10/2011
12/11/2011
12/12/2011
12/13/2011
12/14/2011
12/15/2011
12/16/2011
12/17/2011
12/18/2011
12/19/2011
12/20/2011
12/21/2011
12/22/2011
12/23/2011
12/24/2011
12/25/2011
12/26/2011
12/27/2011
12/28/2011
12/29/2011
12/30/2011
12/31/2011
Day of YearDaily PrcpMultiday Prcp
1/1/2012
1/2/2012
1/3/2012
1/4/2012
1/5/2012
1/6/2012
1/7/2012
1/8/2012
1/9/2012
1/10/2012
1/11/2012
1/12/2012
1/13/2012
1/14/2012
1/15/2012
1/16/2012
1/17/2012
1/18/2012
1/19/2012
1/20/2012 0.40
1/21/2012
1/22/2012
1/23/2012
1/24/2012
1/25/2012
1/26/2012
1/27/2012
1/28/2012
1/29/2012
1/30/2012
1/31/2012
2/1/2012
2/2/2012
2/3/2012
2/4/2012
2/5/2012
2/6/2012
2/7/2012
2/8/2012
2/9/2012
2/10/2012
2/11/2012
2/12/2012
2/13/2012
2/14/2012
2/15/2012
2/16/2012
2/17/2012
2/18/2012
2/19/2012
2/20/2012
2/21/2012
2/22/2012
2/23/2012
2/24/2012
2/25/2012
2/26/2012
2/27/2012
2/28/2012
2/29/2012
3/1/2012
3/2/2012
3/3/2012
3/4/2012
3/5/2012
3/6/2012
3/7/2012
3/8/2012
3/9/2012
3/10/2012
3/11/2012
3/12/2012
3/13/2012
3/14/2012
3/15/2012
3/16/2012
3/17/2012
3/18/2012
3/19/2012
3/20/2012
3/21/2012
3/22/2012
3/23/2012
3/24/2012
3/25/2012
3/26/2012
3/27/2012
3/28/2012
3/29/2012
3/30/2012
3/31/2012
Day of YearDaily PrcpMultiday Prcp
4/1/2012
4/2/2012
4/3/2012
4/4/2012
4/5/2012
4/6/2012
4/7/2012
4/8/2012
4/9/2012
4/10/2012
4/11/2012
4/12/2012
4/13/2012
4/14/2012
4/15/2012
4/16/2012
4/17/2012
4/18/2012
4/19/2012
4/20/2012
4/21/2012
4/22/2012
4/23/2012
4/24/2012
4/25/2012
4/26/2012
4/27/2012
4/28/2012
4/29/2012
4/30/2012
5/1/2012
5/2/2012
5/3/2012
5/4/2012
5/5/2012
5/6/2012
5/7/2012
5/8/2012
5/9/2012
5/10/2012
5/11/2012
5/12/2012
5/13/2012
5/14/2012
5/15/2012
5/16/2012
5/17/2012
5/18/2012
5/19/2012
5/20/2012
5/21/2012
5/22/2012
5/23/2012
5/24/2012
5/25/2012
5/26/2012
5/27/2012
5/28/2012
5/29/2012
5/30/2012
5/31/2012
6/1/2012
6/2/2012
6/3/2012
6/4/2012
6/5/2012
6/6/2012
6/7/2012
6/8/2012
6/9/2012
6/10/2012
6/11/2012
6/12/2012
6/13/2012
6/14/2012
6/15/2012
6/16/2012
6/17/2012
6/18/2012
6/19/2012
6/20/2012
6/21/2012
6/22/2012
6/23/2012
6/24/2012
6/25/2012
6/26/2012
6/27/2012
6/28/2012
6/29/2012
6/30/2012
Day of YearDaily PrcpMultiday Prcp
7/1/2012
7/2/2012
7/3/2012
7/4/2012
7/5/2012
7/6/2012
7/7/2012
7/8/2012
7/9/2012
7/10/2012
7/11/2012
7/12/2012
7/13/2012
7/14/2012
7/15/2012
7/16/2012
7/17/2012
7/18/2012
7/19/2012
7/20/2012
7/21/2012
7/22/2012
7/23/2012
7/24/2012
7/25/2012
7/26/2012
7/27/2012
7/28/2012
7/29/2012
7/30/2012
7/31/2012
8/1/2012
8/2/2012
8/3/2012
8/4/2012
8/5/2012
8/6/2012
8/7/2012
8/8/2012
8/9/2012
8/10/2012
8/11/2012
8/12/2012
8/13/2012
8/14/2012
8/15/2012
8/16/2012
8/17/2012
8/18/2012
8/19/2012
8/20/2012
8/21/2012
8/22/2012
8/23/2012
8/24/2012
8/25/2012
8/26/2012
8/27/2012
8/28/2012
8/29/2012
8/30/2012
8/31/2012
9/1/2012
9/2/2012
9/3/2012
9/4/2012
9/5/2012
9/6/2012
9/7/2012
9/8/2012
9/9/2012
9/10/2012
9/11/2012
9/12/2012
9/13/2012
9/14/2012
9/15/2012
9/16/2012
9/17/2012
9/18/2012
9/19/2012
9/20/2012
9/21/2012
9/22/2012
9/23/2012
9/24/2012
9/25/2012
9/26/2012
9/27/2012
9/28/2012
9/29/2012
9/30/2012



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/12/2011 7:45 PM 0.00 0.0 M M M
10/13/2011 9:20 PM 1.11 M M M M 25 1/2 hour total; however rainfall stopped before within 24 hour reporting period.
10/14/2011 9:20 PM 0.00 0.0 M M M
10/15/2011 8:00 PM 0.00 0.0 M M M
10/16/2011 10:00 PM 0.11 M M M M
10/25/2011 3:30 PM T M M M M
10/26/2011 3:30 PM 0.00 0.0 M M M
10/27/2011 3:30 PM 0.00 0.0 M M M
10/30/2011 3:30 PM 0.05 M M M M
10/31/2011 3:30 PM 0.07 M M M M
11/2/2011 3:30 PM 0.00 0.0 M M M
11/3/2011 7:45 AM M M M M M *** Due to the high winds and fall foliage, my rain gauge became clogged with leaves, no report will be available today. ***
11/4/2011 3:30 PM 0.14 M M M M
11/8/2011 3:30 PM 1.36 M M M M
1/20/2012 10:00 PM 0.40 7.3 M 7.5 M *** melted snow data is an estimate only based on NWS ratio of snow:liquid precip estimates and hourly liquid precip. from nws.gov/chicago*** Snowfall rate was slightly over 1"/hr around 5:45pm. Snow blowing took me 30 mins (exactly), and an additional (averaged) 0.50-0.60" had fallen. (some obs of 0.40 and some of .60... average .50-.60")



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
10/18/2011 10/24/2011 2:30 PM 7 0.00 M M *** AMOUNT IS INCORRECT *** Rain guage was emptied improperly by the people who were watching my house while out of town. No data between 10/18 and 10/24 available. Normal data will resume 10/25.
10/28/2011 10/29/2011 3:30 PM 2 0.00 M M There was a "Trace", however due to the lack of cloud cover with the satellite loop of the area, and seeing the frost in the AM; I realized it was due to melted frost. Thus a 0.0.
11/6/2011 11/07/2011 3:30 PM 2 0.01 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