Station Overview Station Location
Station Number IL-KN-4 Latitude 41.77622
Station Name Sugar Grove 0.7 NE Longitude -88.447768
County Kane Elevation (ft) 715



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 2.88 3.12 31 3.12 31 0.00 0 0 16 0 0.0 0 0
Nov 16 3.03 2.62 30 2.62 30 0.00 0 0 12 0 0.0 0 0
Dec 16 2.12 1.57 31 1.57 31 0.00 0 0 11 1 14.1 6 21
Jan 17 1.54 2.49 31 2.49 28 0.00 3 1 11 5 0.4 2 1
Feb 17 1.60 0.95 28 0.95 28 0.00 0 0 4 6 0.0 0 0
March 17 2.20 4.39 31 3.68 28 0.71 3 1 10 3 3.7 4 4
April 17 3.43 5.94 30 5.94 30 0.00 0 0 14 0 0.0 0 0
May 17 4.04 5.30 31 5.30 29 0.00 2 1 10 3 0.0 0 0
June 17 3.93 2.13 30 2.13 30 0.00 0 0 10 2 0.0 0 0
July 17 3.81 4.98 31 4.98 31 0.00 0 0 9 0 0.0 0 0
Aug 17 4.12 3.23 31 2.85 16 0.38 15 1 4 3 0.0 0 0
Sept 17 3.33 0.82 30 0.82 30 0.00 0 0 2 0 0.0 0 0
Water Year Totals: 36.03" 37.54" 365 days 36.45" 342 1.09" 23 days 4 113 days 23 days 18.2" 12 days 26 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 0.04
10/2/2016 0.54
10/3/2016 0.05
10/4/2016 0.00
10/5/2016 0.00
10/6/2016 0.24
10/7/2016 0.16
10/8/2016 0.02
10/9/2016 0.00
10/10/2016 0.00
10/11/2016 0.00
10/12/2016 0.03
10/13/2016 0.42
10/14/2016 0.00
10/15/2016 0.02
10/16/2016 0.31
10/17/2016 0.02
10/18/2016 0.00
10/19/2016 0.00
10/20/2016 0.04
10/21/2016 0.00
10/22/2016 0.00
10/23/2016 0.00
10/24/2016 0.00
10/25/2016 0.00
10/26/2016 0.21
10/27/2016 0.70
10/28/2016 0.02
10/29/2016 0.00
10/30/2016 0.30
10/31/2016 0.00
11/1/2016 0.00
11/2/2016 0.01
11/3/2016 0.20
11/4/2016 0.00
11/5/2016 0.00
11/6/2016 0.00
11/7/2016 0.00
11/8/2016 0.02
11/9/2016 0.02
11/10/2016 0.00
11/11/2016 0.00
11/12/2016 0.00
11/13/2016 0.00
11/14/2016 0.00
11/15/2016 0.00
11/16/2016 0.00
11/17/2016 0.00
11/18/2016 0.00
11/19/2016 0.03
11/20/2016 0.00
11/21/2016 0.00
11/22/2016 0.00
11/23/2016 0.44
11/24/2016 0.17
11/25/2016 0.02
11/26/2016 0.01
11/27/2016 0.00
11/28/2016 0.60
11/29/2016 1.09
11/30/2016 0.01
12/1/2016 0.01
12/2/2016 0.01
12/3/2016 0.00
12/4/2016 0.00
12/5/2016 0.56
12/6/2016 0.00
12/7/2016 0.00
12/8/2016 0.00
12/9/2016 0.00
12/10/2016 T
12/11/2016 0.12
12/12/2016 0.24
12/13/2016 0.01
12/14/2016 0.00
12/15/2016 0.02
12/16/2016 0.00
12/17/2016 0.04
12/18/2016 0.12
12/19/2016 0.00
12/20/2016 0.00
12/21/2016 0.00
12/22/2016 0.00
12/23/2016 0.00
12/24/2016 0.10
12/25/2016 0.00
12/26/2016 0.34
12/27/2016 0.00
12/28/2016 0.00
12/29/2016 0.00
12/30/2016 0.00
12/31/2016 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2017 0.00
1/2/2017 0.00
1/3/2017 0.03
1/4/2017 T
1/5/2017 0.00
1/6/2017 T
1/7/2017 T
1/8/2017 0.00
1/9/2017 0.00
1/10/2017 0.01
1/11/2017 0.18
1/12/2017 0.43
1/13/2017 T
1/14/2017 0.00
1/15/2017 0.00
1/16/2017 0.07
1/17/2017 1.28
1/18/2017 T
1/19/2017 0.00
1/20/2017 0.33
1/21/2017 0.03
1/22/2017 0.00
1/23/2017 0.00
1/24/2017 0.00
1/25/2017 0.08
1/26/2017 0.04
1/27/2017 0.01
1/28/2017 **
1/29/2017 **
1/30/2017 T
1/31/2017 0.00
2/1/2017 0.00
2/2/2017 0.00
2/3/2017 0.00
2/4/2017 0.00
2/5/2017 0.00
2/6/2017 0.00
2/7/2017 0.68
2/8/2017 T
2/9/2017 0.00
2/10/2017 0.00
2/11/2017 0.00
2/12/2017 0.00
2/13/2017 T
2/14/2017 0.00
2/15/2017 0.00
2/16/2017 0.00
2/17/2017 0.00
2/18/2017 0.00
2/19/2017 0.00
2/20/2017 0.00
2/21/2017 0.05
2/22/2017 T
2/23/2017 0.00
2/24/2017 0.19
2/25/2017 0.03
2/26/2017 T
2/27/2017 T
2/28/2017 T
3/1/2017 0.87
3/2/2017 0.05
3/3/2017 0.00
3/4/2017 0.04
3/5/2017 0.00
3/6/2017 0.00
3/7/2017 0.34
3/8/2017 0.00
3/9/2017 0.00
3/10/2017 0.00
3/11/2017 0.00
3/12/2017 0.00
3/13/2017 0.09
3/14/2017 0.04
3/15/2017 0.00
3/16/2017 0.00
3/17/2017 0.01
3/18/2017 T
3/19/2017 0.00
3/20/2017 0.31
3/21/2017 0.00
3/22/2017 0.00
3/23/2017 0.00
3/24/2017 T
3/25/2017 **
3/26/2017 **
3/27/2017 0.71
3/28/2017 T
3/29/2017 0.00
3/30/2017 0.98
3/31/2017 0.95
Day of YearDaily PrcpMultiday Prcp
4/1/2017 0.02
4/2/2017 0.00
4/3/2017 0.00
4/4/2017 0.57
4/5/2017 0.16
4/6/2017 0.84
4/7/2017 0.00
4/8/2017 0.00
4/9/2017 0.00
4/10/2017 0.01
4/11/2017 0.20
4/12/2017 0.00
4/13/2017 0.12
4/14/2017 0.04
4/15/2017 0.21
4/16/2017 0.66
4/17/2017 0.00
4/18/2017 0.00
4/19/2017 0.00
4/20/2017 0.05
4/21/2017 0.00
4/22/2017 0.00
4/23/2017 0.00
4/24/2017 0.00
4/25/2017 0.00
4/26/2017 0.00
4/27/2017 0.50
4/28/2017 0.01
4/29/2017 0.00
4/30/2017 2.55
5/1/2017 0.81
5/2/2017 0.18
5/3/2017 T
5/4/2017 0.00
5/5/2017 0.00
5/6/2017 0.38
5/7/2017 0.00
5/8/2017 0.00
5/9/2017 0.74
5/10/2017 T
5/11/2017 0.91
5/12/2017 0.00
5/13/2017 0.00
5/14/2017 0.00
5/15/2017 0.00
5/16/2017 0.00
5/17/2017 0.00
5/18/2017 0.39
5/19/2017 0.00
5/20/2017 0.30
5/21/2017 0.26
5/22/2017 0.00
5/23/2017 0.00
5/24/2017 0.76
5/25/2017 0.00
5/26/2017 0.00
5/27/2017 0.57
5/28/2017 **
5/29/2017 0.00
5/30/2017 0.00
5/31/2017 T
6/1/2017 0.00
6/2/2017 0.00
6/3/2017 0.00
6/4/2017 0.00
6/5/2017 0.00
6/6/2017 0.00
6/7/2017 0.00
6/8/2017 0.00
6/9/2017 0.03
6/10/2017 0.00
6/11/2017 0.00
6/12/2017 0.00
6/13/2017 0.00
6/14/2017 0.00
6/15/2017 0.18
6/16/2017 0.50
6/17/2017 0.05
6/18/2017 0.22
6/19/2017 T
6/20/2017 0.09
6/21/2017 0.30
6/22/2017 0.00
6/23/2017 0.40
6/24/2017 T
6/25/2017 0.00
6/26/2017 0.00
6/27/2017 0.00
6/28/2017 0.00
6/29/2017 0.24
6/30/2017 0.12
Day of YearDaily PrcpMultiday Prcp
7/1/2017 0.00
7/2/2017 0.00
7/3/2017 0.00
7/4/2017 0.00
7/5/2017 0.00
7/6/2017 0.00
7/7/2017 0.00
7/8/2017 0.00
7/9/2017 0.00
7/10/2017 0.38
7/11/2017 0.21
7/12/2017 0.00
7/13/2017 0.51
7/14/2017 0.00
7/15/2017 0.00
7/16/2017 0.00
7/17/2017 0.00
7/18/2017 0.00
7/19/2017 0.00
7/20/2017 0.78
7/21/2017 0.30
7/22/2017 1.70
7/23/2017 0.02
7/24/2017 0.50
7/25/2017 0.00
7/26/2017 0.00
7/27/2017 0.58
7/28/2017 0.00
7/29/2017 0.00
7/30/2017 0.00
7/31/2017 0.00
8/1/2017 0.00
8/2/2017 0.00
8/3/2017 0.00
8/4/2017 0.03
8/5/2017 T
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 0.38
8/21/2017 2.22
8/22/2017 0.13
8/23/2017 0.00
8/24/2017 0.00
8/25/2017 0.00
8/26/2017 0.00
8/27/2017 T
8/28/2017 T
8/29/2017 0.47
8/30/2017 0.00
8/31/2017 0.00
9/1/2017 0.00
9/2/2017 0.00
9/3/2017 0.08
9/4/2017 0.00
9/5/2017 0.00
9/6/2017 0.00
9/7/2017 0.00
9/8/2017 0.00
9/9/2017 0.00
9/10/2017 0.00
9/11/2017 0.00
9/12/2017 0.00
9/13/2017 0.00
9/14/2017 0.00
9/15/2017 0.00
9/16/2017 0.00
9/17/2017 0.00
9/18/2017 0.00
9/19/2017 0.74
9/20/2017 0.00
9/21/2017 0.00
9/22/2017 0.00
9/23/2017 0.00
9/24/2017 0.00
9/25/2017 0.00
9/26/2017 0.00
9/27/2017 0.00
9/28/2017 0.00
9/29/2017 0.00
9/30/2017 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2016 7:00 AM 0.04 M M M M
10/2/2016 7:00 AM 0.54 M M M M sunny skies to the west Sat. morning with a period of moderate rain that approached from the east during the midday. intermittent showers the remainder of the day.
10/3/2016 7:00 AM 0.05 M M M M
10/4/2016 7:00 AM 0.00 0.0 M M M
10/5/2016 7:00 AM 0.00 0.0 M M M
10/6/2016 6:45 AM 0.24 M M M M thundershower during the predawn hours. a few sprinkles at ob time.
10/7/2016 7:00 AM 0.16 M M M M
10/8/2016 7:00 AM 0.02 0.0 M M M heavy dew this morning.
10/9/2016 7:00 AM 0.00 0.0 M M M
10/10/2016 7:00 AM 0.00 0.0 M M M
10/11/2016 7:00 AM 0.00 0.0 M M M
10/12/2016 6:45 AM 0.03 M M M M light rain at ob time. a few rumbles of thunder.
10/13/2016 7:00 AM 0.42 M M M M
10/14/2016 7:00 AM 0.00 0.0 M M M patchy light frost this morning.
10/15/2016 7:30 AM 0.02 M M M M overcast and misty at ob time.
10/16/2016 7:00 AM 0.31 M M M M thundershower around 4:30 a.m. this morning.
10/17/2016 7:00 AM 0.02 M M M M
10/18/2016 7:00 AM 0.00 0.0 M M M
10/19/2016 7:00 AM 0.00 0.0 M M M
10/20/2016 7:00 AM 0.04 M M M M
10/21/2016 7:00 AM 0.00 0.0 M M M
10/22/2016 7:00 AM 0.00 0.0 M M M
10/23/2016 7:00 AM 0.00 0.0 M M M Cubs win the national league pennant and the skies are clear and sunny both literally and figuratively at ob time.
10/24/2016 7:00 AM 0.00 0.0 M M M
10/25/2016 7:00 AM 0.00 0.0 M M M
10/26/2016 7:00 AM 0.21 M M M M overcast and breezy at ob time.
10/27/2016 7:00 AM 0.70 M M M M
10/28/2016 7:00 AM 0.02 M M M M
10/29/2016 7:00 AM 0.00 0.0 M M M
10/30/2016 7:00 AM 0.30 M M M M rain and a few rumbles of thunder around 4 a.m. this morning.
10/31/2016 7:00 AM 0.00 0.0 M M M
11/1/2016 7:00 AM 0.00 0.0 M M M
11/2/2016 7:00 AM 0.01 M M M M
11/3/2016 7:00 AM 0.20 M M M M Yesterday's rain can't dampen the enthusiasm for a Cubs World Series win.
11/4/2016 7:00 AM 0.00 0.0 M M M
11/5/2016 7:00 AM 0.00 0.0 M M M
11/6/2016 7:00 AM 0.00 0.0 M M M
11/7/2016 7:00 AM 0.00 0.0 M M M
11/8/2016 7:00 AM 0.02 M M M M
11/9/2016 7:00 AM 0.02 M M M M
11/10/2016 7:00 AM 0.00 0.0 M M M
11/11/2016 7:00 AM 0.00 0.0 M M M
11/12/2016 7:00 AM 0.00 0.0 M M M
11/13/2016 7:00 AM 0.00 0.0 M M M
11/14/2016 7:00 AM 0.00 0.0 M M M
11/15/2016 7:00 AM 0.00 0.0 M M M
11/16/2016 7:00 AM 0.00 0.0 M M M
11/17/2016 7:00 AM 0.00 0.0 M M M
11/18/2016 7:00 AM 0.00 0.0 M M M
11/19/2016 7:00 AM 0.03 M M M M overcast with gusty winds at ob time.
11/20/2016 7:00 AM 0.00 0.0 M 0.0 M
11/21/2016 7:00 AM 0.00 0.0 M 0.0 M
11/22/2016 7:00 AM 0.00 0.0 M 0.0 M
11/23/2016 7:00 AM 0.44 0.0 M 0.0 M overcast and misty at ob time.
11/24/2016 7:00 AM 0.17 0.0 M 0.0 M
11/25/2016 7:00 AM 0.02 0.0 M 0.0 M
11/26/2016 7:00 AM 0.01 0.0 M 0.0 M
11/27/2016 7:00 AM 0.00 0.0 M 0.0 M light fog at ob time. visibility about 1/2 mile.
11/28/2016 7:00 AM 0.60 0.0 M 0.0 M
11/29/2016 7:00 AM 1.09 0.0 M 0.0 M
11/30/2016 7:00 AM 0.01 0.0 M M M
12/1/2016 7:00 AM 0.01 0.0 M 0.0 M
12/2/2016 7:00 AM 0.01 0.0 M 0.0 M
12/3/2016 7:00 AM 0.00 0.0 M 0.0 M
12/4/2016 7:00 AM 0.00 0.0 M 0.0 M no snow falling at ob time.
12/5/2016 7:00 AM 0.56 6.0 M 6.0 M probably some melting and compacting of snowpack but there was 6" of snow indicated on the board this morning. snow is very heavy and wet.
12/6/2016 7:00 AM 0.00 0.0 M 3.0 M significant melting and compacting of snowpack. fog with about 1/4 mile visibility at ob time.
12/7/2016 7:00 AM 0.00 0.0 M 1.5 M
12/8/2016 7:00 AM 0.00 0.0 M 1.0 M
12/9/2016 7:00 AM 0.00 0.0 M 0.5 M
12/10/2016 7:00 AM T T M 0.5 M
12/11/2016 7:00 AM 0.12 3.0 M 3.5 M overcast at ob time.
12/12/2016 7:00 AM 0.24 2.9 M 6.5 M
12/13/2016 7:00 AM 0.01 T M 6.5 M
12/14/2016 7:00 AM 0.00 0.0 M 6.0 M
12/15/2016 7:00 AM 0.02 0.3 M 6.0 M some of the snow measured on the board may have been the result of blowing and drifting.
12/16/2016 7:00 AM 0.00 0.0 M 4.5 M
12/17/2016 7:00 AM 0.04 0.4 M 5.0 M
12/18/2016 7:00 AM 0.12 1.5 M 6.0 M considerable blowing and drifting overnight. 1.5" indicated on snow board with 6" of overall snow depth averaged from several readings. clear and cold at ob time.
12/19/2016 7:00 AM 0.00 0.0 M 6.0 M
12/20/2016 7:00 AM 0.00 0.0 M 6.0 M
12/21/2016 7:00 AM 0.00 0.0 M 5.0 M
12/22/2016 7:00 AM 0.00 0.0 M 4.5 M
12/23/2016 7:00 AM 0.00 0.0 M 3.5 M
12/24/2016 7:00 AM 0.10 T M 3.0 M
12/25/2016 7:00 AM 0.00 0.0 M 2.5 M
12/26/2016 7:00 AM 0.34 0.0 M T M above freezing temps., wind and rain have pretty much eliminated the existing snowpack.
12/27/2016 7:00 AM 0.00 0.0 M T M
12/28/2016 7:00 AM 0.00 0.0 M T M
12/29/2016 7:00 AM 0.00 0.0 M T M
12/30/2016 7:00 AM 0.00 0.0 M T M if any flurries occurred at this location yesterday, they didn't leave even a trace.
12/31/2016 7:00 AM 0.00 0.0 M T M
1/1/2017 7:00 AM 0.00 0.0 M T M
1/2/2017 7:00 AM 0.00 0.0 M T M
1/3/2017 7:00 AM 0.03 0.0 M T M light fog at ob time. visibility about a 1/2 mile.
1/4/2017 7:00 AM T 0.0 M 0.0 M windy, clear, and cold at ob time. temp. 11° F
1/5/2017 7:00 AM 0.00 0.0 M 0.0 M
1/6/2017 7:00 AM T T M 0.0 M
1/7/2017 7:00 AM T T M 0.0 M
1/8/2017 7:00 AM 0.00 0.0 M 0.0 M
1/9/2017 7:00 AM 0.00 0.0 M 0.0 M
1/10/2017 6:30 AM 0.01 T M 0.0 M due to above freezing temps., there is no existing remnant of yesterday's brief period of light snow.
1/11/2017 7:00 AM 0.18 0.0 M 0.0 M
1/12/2017 6:30 AM 0.43 0.3 M 0.5 M rain with some thunder last evening. collection tube filled with a possible mixture of rain, snow, sleet, graupel and freezing rain. sleet/freezing rain at ob time.
1/13/2017 7:00 AM T T M T M
1/14/2017 7:00 AM 0.00 0.0 M T M
1/15/2017 7:00 AM 0.00 0.0 M T M
1/16/2017 6:45 AM 0.07 0.0 M T M light rain at ob time.
1/17/2017 7:00 AM 1.28 0.0 M 0.0 M heavy rain and thunder around 1am this morning.
1/18/2017 7:00 AM T 0.0 M 0.0 M trace measurement in tube may be the result of either drizzle or condensation.
1/19/2017 7:00 AM 0.00 0.0 M 0.0 M
1/20/2017 7:00 AM 0.33 0.0 M M 0.00
1/21/2017 7:00 AM 0.03 0.0 M 0.0 M light fog at ob time.
1/22/2017 7:00 AM 0.00 0.0 M 0.0 M fog at ob time. visibility about 1/2 mile.
1/23/2017 7:00 AM 0.00 0.0 M 0.0 M
1/24/2017 7:00 AM 0.00 0.0 M 0.0 M
1/25/2017 7:00 AM 0.08 0.0 M 0.0 M
1/26/2017 6:30 AM 0.04 0.1 M T M very light mixed precip. at ob time.
1/27/2017 7:00 AM 0.01 T M 0.0 M
1/31/2017 7:00 AM 0.00 0.0 M 0.0 M
2/1/2017 7:00 AM 0.00 0.0 M 0.0 M
2/2/2017 7:00 AM 0.00 0.0 M 0.0 M
2/3/2017 7:00 AM 0.00 0.0 M 0.0 M
2/4/2017 7:00 AM 0.00 0.0 M 0.0 M
2/5/2017 7:00 AM 0.00 0.0 M 0.0 M
2/6/2017 7:00 AM 0.00 0.0 M 0.0 M
2/7/2017 7:00 AM 0.68 0.0 M 0.0 M rain and intermittent thunder throughout the overnight hours. light mist at ob time.
2/8/2017 7:00 AM T T M T M very light dusting of snow overnight.
2/9/2017 7:00 AM 0.00 0.0 M 0.0 M
2/10/2017 7:00 AM 0.00 0.0 M 0.0 M
2/11/2017 7:00 AM 0.00 0.0 M 0.0 M
2/12/2017 7:00 AM 0.00 0.0 M 0.0 M
2/13/2017 7:00 AM T 0.0 M 0.0 M
2/14/2017 7:00 AM 0.00 0.0 M 0.0 M
2/15/2017 7:00 AM 0.00 0.0 M 0.0 M
2/16/2017 7:00 AM 0.00 0.0 M 0.0 M
2/17/2017 7:00 AM 0.00 0.0 M 0.0 M
2/18/2017 7:00 AM 0.00 0.0 M 0.0 M
2/19/2017 7:00 AM 0.00 0.0 M 0.0 M yesterday's high temp. briefly reached 68°F under virtually cloudless skies.
2/20/2017 7:00 AM 0.00 0.0 M 0.0 M
2/21/2017 7:00 AM 0.05 0.0 M 0.0 M
2/22/2017 7:00 AM T 0.0 M 0.0 M fog at ob time. visibility around an 1/8 mile. moisture in tube may be the result of condensation.
2/23/2017 7:00 AM 0.00 0.0 M 0.0 M
2/24/2017 7:00 AM 0.19 0.0 M 0.0 M a few rumbles of thunder overnight. overcast at ob time.
2/25/2017 7:00 AM 0.03 T M T M
2/26/2017 7:00 AM T T M 0.0 M
2/27/2017 7:00 AM T 0.0 M 0.0 M a few sprinkles Sunday evening.
2/28/2017 7:00 AM T 0.0 M 0.0 M
3/1/2017 7:00 AM 0.87 0.0 M 0.0 M rain, gusty winds, and active t-storms throughout the evening hours last night. no hail at this location. fog at ob time, visibility about 1/4 mile.
3/2/2017 7:00 AM 0.05 0.3 M 0.5 M dusting of light, fluffy snow overnight.
3/3/2017 7:00 AM 0.00 0.0 M 0.0 M
3/4/2017 7:00 AM 0.04 0.7 M 0.5 M
3/5/2017 7:00 AM 0.00 0.0 M 0.0 M
3/6/2017 7:00 AM 0.00 0.0 M 0.0 M
3/7/2017 7:00 AM 0.34 0.0 M 0.0 M severe thunderstorm warning issued about 12:45 a.m. associated storms did not reach severe limits at this location. a few wind gusts, occasional lightning, and brief, moderate rain were observed here.
3/8/2017 7:00 AM 0.00 0.0 M 0.0 M
3/9/2017 7:00 AM 0.00 0.0 M 0.0 M
3/10/2017 7:00 AM 0.00 0.0 M 0.0 M
3/11/2017 7:00 AM 0.00 0.0 M 0.0 M
3/12/2017 7:00 AM 0.00 0.0 M 0.0 M
3/13/2017 6:30 AM 0.09 1.4 M 1.5 M light snow at ob time.
3/14/2017 7:00 AM 0.04 1.3 M 1.5 M
3/15/2017 7:00 AM 0.00 0.0 M T M
3/16/2017 7:00 AM 0.00 0.0 M T M
3/17/2017 7:00 AM 0.01 0.0 M 0.0 M a very light mist at ob time.
3/18/2017 8:00 AM T 0.0 M 0.0 M
3/19/2017 7:00 AM 0.00 0.0 M 0.0 M
3/20/2017 7:00 AM 0.31 0.0 M 0.0 M periodic thunderstorms during the overnight hours. storm around 2a.m. produced some hail.
3/21/2017 7:00 AM 0.00 0.0 M 0.0 M
3/22/2017 7:00 AM 0.00 0.0 M 0.0 M
3/23/2017 7:00 AM 0.00 0.0 M 0.0 M
3/24/2017 7:00 AM T 0.0 M 0.0 M some thunder around 7 p.m. last night, but nothing in the way of rain.
3/28/2017 7:00 AM T 0.0 M 0.0 M
3/29/2017 7:00 AM 0.00 0.0 M 0.0 M
3/30/2017 6:45 AM 0.98 0.0 M 0.0 M steady rain overnight with few rumbles of thunder. overcast at ob time.
3/31/2017 7:00 AM 0.95 0.0 M 0.0 M very light mist at ob time.
4/1/2017 7:00 AM 0.02 0.0 M 0.0 M
4/2/2017 7:00 AM 0.00 0.0 M 0.0 M
4/3/2017 7:00 AM 0.00 0.0 M 0.0 M
4/4/2017 7:00 AM 0.57 0.0 M 0.0 M
4/5/2017 6:30 AM 0.16 0.0 M 0.0 M rain falling at ob time.
4/6/2017 7:00 AM 0.84 0.0 M 0.0 M if there was any transition to snow during the overnight hours it was not observed at this location.
4/7/2017 7:00 AM 0.00 0.0 M 0.0 M
4/8/2017 7:00 AM 0.00 0.0 M 0.0 M
4/9/2017 7:00 AM 0.00 0.0 M 0.0 M
4/10/2017 7:00 AM 0.01 0.0 M 0.0 M Light rain at ob time.
4/11/2017 7:00 AM 0.20 0.0 M 0.0 M
4/12/2017 7:00 AM 0.00 0.0 M 0.0 M
4/13/2017 7:00 AM 0.12 0.0 M 0.0 M rain falling at ob time.
4/14/2017 7:00 AM 0.04 0.0 M 0.0 M
4/15/2017 7:00 AM 0.21 0.0 M 0.0 M
4/16/2017 7:00 AM 0.66 0.0 M 0.0 M Steady rain during the overnight hours. A few rumbles of thunder.
4/17/2017 7:00 AM 0.00 0.0 M 0.0 M
4/18/2017 7:00 AM 0.00 0.0 M 0.0 M
4/19/2017 7:00 AM 0.00 0.0 M 0.0 M
4/20/2017 7:00 AM 0.05 0.0 M 0.0 M
4/21/2017 7:00 AM 0.00 0.0 M 0.0 M
4/22/2017 7:00 AM 0.00 0.0 M 0.0 M
4/23/2017 7:00 AM 0.00 0.0 M 0.0 M
4/24/2017 7:00 AM 0.00 0.0 M 0.0 M
4/25/2017 7:00 AM 0.00 0.0 M 0.0 M
4/26/2017 7:00 AM 0.00 0.0 M 0.0 M
4/27/2017 7:00 AM 0.50 0.0 M 0.0 M
4/28/2017 7:00 AM 0.01 0.0 M 0.0 M
4/29/2017 7:00 AM 0.00 0.0 M 0.0 M
4/30/2017 7:00 AM 2.55 0.0 M 0.0 M frequent moderate to heavy wind-driven rain throughout the afternoon into the late evening hours Sat. There were a few rumbles of thunder during the event. Very light rain falling at ob time.
5/1/2017 7:00 AM 0.81 0.0 M 0.0 M rain and some thunder yesterday afternoon and evening.
5/2/2017 7:00 AM 0.18 0.0 M 0.0 M
5/3/2017 7:00 AM T 0.0 M 0.0 M light frost overnight.
5/4/2017 7:00 AM 0.00 0.0 M 0.0 M
5/5/2017 7:00 AM 0.00 0.0 M 0.0 M
5/6/2017 7:00 AM 0.38 0.0 M 0.0 M
5/7/2017 7:00 AM 0.00 0.0 M 0.0 M frost and a hard freeze overnight. ice in the birdbath this morning.
5/8/2017 7:00 AM 0.00 0.0 M 0.0 M
5/9/2017 6:30 AM 0.74 0.0 M 0.0 M very light rain at ob time.
5/10/2017 7:00 AM T 0.0 M 0.0 M
5/11/2017 7:00 AM 0.91 0.0 M 0.0 M rain, sometimes heavy, with some thunder Wed. afternoon and evening. overcast at ob time.
5/12/2017 7:00 AM 0.00 0.0 M 0.0 M
5/13/2017 7:00 AM 0.00 0.0 M 0.0 M
5/14/2017 7:00 AM 0.00 0.0 M 0.0 M
5/15/2017 7:00 AM 0.00 0.0 M 0.0 M
5/16/2017 7:00 AM 0.00 0.0 M 0.0 M
5/17/2017 7:00 AM 0.00 0.0 M 0.0 M
5/18/2017 7:00 AM 0.39 0.0 M 0.0 M briefly heavy, wind-driven rain with frequent lightning beginning around 11 p.m. Wed. night. no hail or observed damage at this location.
5/19/2017 7:00 AM 0.00 0.0 M 0.0 M
5/20/2017 6:00 AM 0.30 0.0 M 0.0 M
5/21/2017 7:00 AM 0.26 0.0 M 0.0 M
5/22/2017 7:00 AM 0.00 0.0 M 0.0 M
5/23/2017 7:00 AM 0.00 0.0 M 0.0 M
5/24/2017 7:00 AM 0.76 0.0 M 0.0 M
5/25/2017 7:00 AM 0.00 0.0 M 0.0 M
5/26/2017 7:00 AM 0.00 0.0 M 0.0 M
5/27/2017 7:00 AM 0.57 0.0 M 0.0 M
5/30/2017 7:00 AM 0.00 0.0 M 0.0 M
5/31/2017 7:00 AM T 0.0 M 0.0 M
6/1/2017 7:00 AM 0.00 0.0 M M M
6/2/2017 7:00 AM 0.00 0.0 M M M
6/3/2017 7:00 AM 0.00 0.0 M M M
6/4/2017 7:00 AM 0.00 0.0 M M M
6/5/2017 7:00 AM 0.00 0.0 M M M
6/6/2017 7:00 AM 0.00 0.0 M M M
6/7/2017 7:00 AM 0.00 0.0 M M M
6/8/2017 7:00 AM 0.00 0.0 M M M
6/9/2017 7:00 AM 0.03 M M M M
6/10/2017 7:00 AM 0.00 0.0 M M M
6/11/2017 7:00 AM 0.00 0.0 M M M
6/12/2017 7:00 AM 0.00 0.0 M M M
6/13/2017 7:00 AM 0.00 0.0 M M M
6/14/2017 7:00 AM 0.00 0.0 M M M
6/15/2017 7:00 AM 0.18 M M M M
6/16/2017 6:45 AM 0.50 M M M M Rain ended just before or time.
6/17/2017 7:00 AM 0.05 M M M M
6/18/2017 7:00 AM 0.22 M M M M light thundershower around 2:45 Sat. afternoon followed by a light thundershower in the evening. no severe weather at this location.
6/19/2017 7:00 AM T M M M M
6/20/2017 7:00 AM 0.09 M M M M
6/21/2017 7:00 AM 0.30 M M M M
6/22/2017 7:00 AM 0.00 0.0 M M M
6/23/2017 7:00 AM 0.40 M M M M Light rain at ob. time.
6/24/2017 7:00 AM T M M M M
6/25/2017 7:00 AM 0.00 0.0 M M M
6/26/2017 7:00 AM 0.00 0.0 M M M
6/27/2017 7:00 AM 0.00 0.0 M M M
6/28/2017 7:00 AM 0.00 0.0 M M M
6/29/2017 7:00 AM 0.24 M M M M last night's heavy weather stayed north of this location. a bit of light rain around 10 p.m.
6/30/2017 7:00 AM 0.12 M M M M
7/1/2017 7:00 AM 0.00 0.0 M M M
7/2/2017 7:00 AM 0.00 0.0 M M M
7/3/2017 7:00 AM 0.00 0.0 M M M
7/4/2017 7:00 AM 0.00 0.0 M M M
7/5/2017 7:00 AM 0.00 0.0 M M M
7/6/2017 7:00 AM 0.00 0.0 M M M encountered heavy rain yesterday afternoon around 6 p.m. on I-88 between Rt. 59 and Rt. 31.
7/7/2017 7:00 AM 0.00 0.0 M M M some thunder in the pre-dawn hours but no rain here.
7/8/2017 7:00 AM 0.00 0.0 M M M
7/9/2017 7:00 AM 0.00 0.0 M M M
7/10/2017 6:45 AM 0.38 M M M M rain and some thunder at ob time.
7/11/2017 7:00 AM 0.21 M M M M
7/12/2017 7:00 AM 0.00 0.0 M M M all of last night's storms passed to the north of this location.
7/13/2017 7:00 AM 0.51 M M M M
7/14/2017 7:00 AM 0.00 0.0 M M M
7/15/2017 7:00 AM 0.00 0.0 M M M
7/16/2017 7:00 AM 0.00 0.0 M M M
7/17/2017 7:00 AM 0.00 0.0 M M M
7/18/2017 7:00 AM 0.00 0.0 M M M
7/19/2017 7:00 AM 0.00 0.0 M M M
7/20/2017 7:00 AM 0.78 M M M M heavy, wind-driven rain began about 9 p.m. last night and lasted about 15 minutes. the rain continued for about a half hour more, gradually diminishing in intensity. curiously, even though persistent lightning accompanied the storm, very little thunder could be heard. it is presently raining at ob time with some thunder.
7/21/2017 7:00 AM 0.30 M M M M it was raining at ob time yesterday morning with dark skies to the northwest. moderate to heavy rain was encountered along I-88 from Aurora to Downers Grove from about 7:15 to 7:45 a.m.
7/22/2017 7:00 AM 1.70 M M M M Successive rounds of thunderstorms moved through the area last night, the most vigorous ones occurring between 8:00 p.m. and midnight. No severe weather at this location but there were several periods of heavy rain with frequent lightning. Rain was falling at ob time, ( 7:00 a.m.)
7/23/2017 7:00 AM 0.02 M M M M
7/24/2017 7:00 AM 0.50 M M M M exactly half an inch of rain from yesterday afternoon's storms.
7/25/2017 7:00 AM 0.00 0.0 M M M
7/26/2017 7:00 AM 0.00 0.0 M M M
7/27/2017 7:00 AM 0.58 M M M M rain and some thunder overnight.
7/28/2017 7:00 AM 0.00 0.0 M M M
7/29/2017 7:00 AM 0.00 0.0 M M M
7/30/2017 7:00 AM 0.00 0.0 M M M
7/31/2017 7:00 AM 0.00 0.0 M M M
8/1/2017 7:00 AM 0.00 0.0 M M M
8/2/2017 7:00 AM 0.00 0.0 M M M A little light fog at ob time.
8/3/2017 7:00 AM 0.00 0.0 M M M
8/4/2017 7:00 AM 0.03 M M M M rainfall close to this location yesterday but virtually none fell here.
8/5/2017 7:00 AM T M M M M
8/21/2017 7:00 AM 2.22 M M M M thunderstorm began shortly before 10 p.m. last night and built in intensity over the period of about an hour and a half. frequent cg lightning, moderate to heavy rain, gusty winds, and a brief period of very small hail.
8/22/2017 7:00 AM 0.13 M M M M
8/23/2017 7:00 AM 0.00 0.0 M M M
8/24/2017 7:00 AM 0.00 0.0 M M M
8/25/2017 7:00 AM 0.00 0.0 M M M
8/26/2017 7:00 AM 0.00 0.0 M M M
8/27/2017 7:00 AM T M M M M
8/28/2017 7:00 AM T M M M M
8/29/2017 7:00 AM 0.47 M M M M
8/30/2017 7:00 AM 0.00 0.0 M M M
8/31/2017 7:00 AM 0.00 0.0 M M M
9/1/2017 7:00 AM 0.00 0.0 M M M
9/2/2017 7:00 AM 0.00 0.0 M M M
9/3/2017 7:00 AM 0.08 M M M M
9/4/2017 7:00 AM 0.00 0.0 M M M
9/5/2017 7:00 AM 0.00 0.0 M M M
9/6/2017 7:00 AM 0.00 0.0 M M M
9/7/2017 7:00 AM 0.00 0.0 M M M
9/8/2017 7:00 AM 0.00 0.0 M M M
9/9/2017 7:00 AM 0.00 0.0 M M M
9/10/2017 7:00 AM 0.00 0.0 M M M
9/11/2017 7:00 AM 0.00 0.0 M M M
9/12/2017 7:00 AM 0.00 0.0 M M M
9/13/2017 7:00 AM 0.00 0.0 M M M
9/14/2017 7:00 AM 0.00 0.0 M M M Fog at ob time. Visibility about 1/8 mile.
9/15/2017 7:00 AM 0.00 0.0 M M M
9/16/2017 7:00 AM 0.00 0.0 M M M
9/17/2017 7:00 AM 0.00 0.0 M M M
9/18/2017 7:00 AM 0.00 0.0 M M M
9/19/2017 7:00 AM 0.74 M M M M Overnight rains were responsible for all the precipitation. Overcast at ob time.
9/20/2017 7:00 AM 0.00 0.0 M M M
9/21/2017 7:00 AM 0.00 0.0 M M M
9/22/2017 7:00 AM 0.00 0.0 M M M
9/23/2017 7:00 AM 0.00 0.0 M M M
9/24/2017 7:00 AM 0.00 0.0 M M M
9/25/2017 7:00 AM 0.00 0.0 M M M
9/26/2017 7:00 AM 0.00 0.0 M M M
9/27/2017 7:00 AM 0.00 0.0 M M M
9/28/2017 7:00 AM 0.00 0.0 M M M
9/29/2017 7:00 AM 0.00 0.0 M M M
9/30/2017 7:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
1/28/2017 1/30/2017 7:00 AM 3 T T M
3/25/2017 3/27/2017 7:00 AM 3 0.71 0.0 M
5/28/2017 5/29/2017 7:00 AM 2 0.00 0.0 M
8/6/2017 8/20/2017 7:00 AM 15 0.38 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