Station Overview Station Location
Station Number IL-DP-42 Latitude 41.91301
Station Name Carol Stream 0.3 SSE Longitude -88.129388
County Du Page Elevation (ft) 758



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 12 2.98 3.72 30 3.72 30 0.00 0 0 13 0 0.0 0 0
Nov 12 3.06 1.14 30 1.14 30 0.00 0 0 6 1 0.2 1 0
Dec 12 2.17 2.52 31 2.41 29 0.11 2 1 10 1 1.3 2 1
Jan 13 1.70 3.98 31 3.98 31 0.00 0 0 9 1 1.4 4 2
Feb 13 1.65 3.23 21 3.06 19 0.17 2 1 10 2 12.1 7 3
March 13 2.25 2.14 27 1.11 25 1.03 2 1 8 5 8.3 8 3
April 13 3.45 9.35 29 9.35 29 0.00 0 0 15 0 0.0 0 0
May 13 4.06 4.24 30 4.24 30 0.00 0 0 11 1 0.0 0 0
June 13 4.03 2.61 29 2.61 29 0.00 0 0 14 0 0.0 0 0
July 13 3.81 2.95 31 2.95 31 0.00 0 0 13 2 0.0 0 0
Aug 13 4.40 2.87 31 2.87 31 0.00 0 0 7 2 0.0 0 0
Sept 13 3.34 3.41 23 3.41 23 0.00 0 0 8 2 0.0 0 0
Water Year Totals: 36.90" 42.16" 343 days 40.85" 337 1.31" 6 days 3 124 days 17 days 23.3" 22 days 9 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
10/1/2012 0.00
10/2/2012 0.00
10/3/2012 0.00
10/4/2012 0.17
10/5/2012 0.13
10/6/2012 0.00
10/7/2012 0.00
10/8/2012 0.00
10/9/2012 0.00
10/10/2012 0.25
10/11/2012 0.00
10/12/2012 0.05
10/13/2012 0.11
10/14/2012 0.66
10/15/2012 0.62
10/16/2012 0.00
10/17/2012 0.00
10/18/2012 0.78
10/19/2012 0.23
10/20/2012 0.10
10/21/2012 0.00
10/22/2012 0.00
10/23/2012 0.33
10/24/2012 0.07
10/25/2012 0.00
10/26/2012 0.22
10/27/2012 0.00
10/28/2012 0.00
10/29/2012 0.00
10/30/2012 0.00
10/31/2012
11/1/2012 0.00
11/2/2012 0.00
11/3/2012 0.00
11/4/2012 T
11/5/2012 0.00
11/6/2012 0.00
11/7/2012 0.21
11/8/2012 0.00
11/9/2012 0.00
11/10/2012 0.00
11/11/2012 0.26
11/12/2012 0.43
11/13/2012 0.02
11/14/2012 0.00
11/15/2012 0.00
11/16/2012 0.00
11/17/2012 0.00
11/18/2012 0.00
11/19/2012 0.00
11/20/2012 0.01
11/21/2012 0.00
11/22/2012 0.00
11/23/2012 0.21
11/24/2012 0.00
11/25/2012 0.00
11/26/2012 0.00
11/27/2012 0.00
11/28/2012 0.00
11/29/2012 0.00
11/30/2012 0.00
12/1/2012 0.00
12/2/2012 0.03
12/3/2012 0.00
12/4/2012 0.00
12/5/2012 0.00
12/6/2012 0.00
12/7/2012 0.10
12/8/2012 0.18
12/9/2012 0.11
12/10/2012 **
12/11/2012 0.11
12/12/2012 0.00
12/13/2012 0.00
12/14/2012 0.00
12/15/2012 0.21
12/16/2012 0.36
12/17/2012 0.00
12/18/2012 0.00
12/19/2012 0.04
12/20/2012 1.03
12/21/2012 0.31
12/22/2012 0.00
12/23/2012 0.00
12/24/2012 0.00
12/25/2012 0.00
12/26/2012 T
12/27/2012 0.00
12/28/2012 0.00
12/29/2012 0.04
12/30/2012 0.00
12/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
1/1/2013 0.00
1/2/2013 0.00
1/3/2013 0.00
1/4/2013 0.00
1/5/2013 0.00
1/6/2013 0.05
1/7/2013 0.00
1/8/2013 0.00
1/9/2013 0.00
1/10/2013 0.00
1/11/2013 0.90
1/12/2013 0.00
1/13/2013 0.20
1/14/2013 0.00
1/15/2013 0.00
1/16/2013 0.00
1/17/2013 0.00
1/18/2013 0.00
1/19/2013 0.00
1/20/2013 0.00
1/21/2013 T
1/22/2013 0.00
1/23/2013 0.00
1/24/2013 0.00
1/25/2013 0.08
1/26/2013 0.01
1/27/2013 0.00
1/28/2013 0.63
1/29/2013 0.13
1/30/2013 1.84
1/31/2013 0.14
2/1/2013 0.00
2/2/2013 **
2/3/2013 0.17
2/4/2013 0.23
2/5/2013 T
2/6/2013 0.05
2/7/2013 0.24
2/8/2013 0.92
2/9/2013 0.00
2/10/2013 0.10
2/11/2013 0.27
2/12/2013 0.00
2/13/2013 0.00
2/14/2013 0.00
2/15/2013 T
2/16/2013 0.00
2/17/2013
2/18/2013
2/19/2013 0.41
2/20/2013
2/21/2013
2/22/2013 0.32
2/23/2013
2/24/2013
2/25/2013
2/26/2013 0.00
2/27/2013 0.46
2/28/2013 0.06
3/1/2013 0.04
3/2/2013 0.00
3/3/2013 T
3/4/2013 0.00
3/5/2013 0.17
3/6/2013 0.52
3/7/2013 0.00
3/8/2013 0.00
3/9/2013 0.00
3/10/2013 **
3/11/2013 1.03
3/12/2013 0.10
3/13/2013 0.01
3/14/2013 0.00
3/15/2013 0.00
3/16/2013 0.18
3/17/2013 0.00
3/18/2013 0.07
3/19/2013 0.02
3/20/2013 0.00
3/21/2013 T
3/22/2013 0.00
3/23/2013 0.00
3/24/2013 0.00
3/25/2013 T
3/26/2013 T
3/27/2013 T
3/28/2013
3/29/2013
3/30/2013
3/31/2013
Day of YearDaily PrcpMultiday Prcp
4/1/2013 0.00
4/2/2013 0.00
4/3/2013 0.00
4/4/2013 0.00
4/5/2013 0.00
4/6/2013 0.00
4/7/2013 0.07
4/8/2013 0.45
4/9/2013 0.20
4/10/2013 0.05
4/11/2013 1.23
4/12/2013 0.13
4/13/2013 0.02
4/14/2013 0.00
4/15/2013 0.05
4/16/2013 0.40
4/17/2013 0.00
4/18/2013 5.03
4/19/2013 0.83
4/20/2013 0.00
4/21/2013 0.00
4/22/2013 0.00
4/23/2013 0.05
4/24/2013 0.72
4/25/2013 0.08
4/26/2013 0.00
4/27/2013 0.00
4/28/2013 0.04
4/29/2013 0.00
4/30/2013
5/1/2013 0.00
5/2/2013 0.00
5/3/2013 0.08
5/4/2013 0.09
5/5/2013 0.00
5/6/2013 0.00
5/7/2013 0.00
5/8/2013 0.00
5/9/2013 0.00
5/10/2013 0.57
5/11/2013 0.00
5/12/2013 0.00
5/13/2013 0.00
5/14/2013 T
5/15/2013 0.00
5/16/2013 0.00
5/17/2013 0.00
5/18/2013 0.02
5/19/2013 0.00
5/20/2013 0.00
5/21/2013 1.42
5/22/2013 0.48
5/23/2013 0.65
5/24/2013 0.00
5/25/2013 0.00
5/26/2013 0.00
5/27/2013 0.04
5/28/2013 0.19
5/29/2013 0.21
5/30/2013
5/31/2013 0.49
6/1/2013 0.09
6/2/2013 M
6/3/2013 0.00
6/4/2013 0.00
6/5/2013 0.00
6/6/2013 0.28
6/7/2013 0.06
6/8/2013 0.00
6/9/2013 0.00
6/10/2013 0.09
6/11/2013 0.00
6/12/2013 0.16
6/13/2013 0.38
6/14/2013 0.00
6/15/2013 0.07
6/16/2013 0.00
6/17/2013 0.00
6/18/2013 0.05
6/19/2013 0.00
6/20/2013 0.00
6/21/2013 0.00
6/22/2013 0.62
6/23/2013 0.00
6/24/2013 0.04
6/25/2013 0.27
6/26/2013 0.11
6/27/2013 0.21
6/28/2013 0.00
6/29/2013 0.18
6/30/2013 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2013 0.00
7/2/2013 0.00
7/3/2013 0.24
7/4/2013 0.02
7/5/2013 0.00
7/6/2013 0.00
7/7/2013 0.00
7/8/2013 0.05
7/9/2013 0.86
7/10/2013 0.01
7/11/2013 0.00
7/12/2013 0.00
7/13/2013 0.00
7/14/2013 0.00
7/15/2013 0.00
7/16/2013 0.05
7/17/2013 0.00
7/18/2013 0.00
7/19/2013 0.05
7/20/2013 0.56
7/21/2013 0.33
7/22/2013 T
7/23/2013 0.16
7/24/2013 0.00
7/25/2013 0.00
7/26/2013 0.03
7/27/2013 0.39
7/28/2013 0.00
7/29/2013 0.00
7/30/2013 T
7/31/2013 0.20
8/1/2013 0.91
8/2/2013 0.14
8/3/2013 0.00
8/4/2013 0.00
8/5/2013 T
8/6/2013 0.05
8/7/2013 0.01
8/8/2013 0.00
8/9/2013 0.00
8/10/2013 0.00
8/11/2013 0.00
8/12/2013 T
8/13/2013 0.00
8/14/2013 0.00
8/15/2013 0.00
8/16/2013 0.00
8/17/2013 0.00
8/18/2013 0.00
8/19/2013 0.00
8/20/2013 0.00
8/21/2013 0.00
8/22/2013 0.30
8/23/2013 0.83
8/24/2013 0.00
8/25/2013 0.00
8/26/2013 0.00
8/27/2013 0.00
8/28/2013 0.00
8/29/2013 0.00
8/30/2013 0.00
8/31/2013 0.63
9/1/2013 0.89
9/2/2013 0.95
9/3/2013 0.00
9/4/2013 0.00
9/5/2013 0.00
9/6/2013 0.00
9/7/2013 0.00
9/8/2013 T
9/9/2013 T
9/10/2013 0.00
9/11/2013 0.00
9/12/2013 0.02
9/13/2013 0.00
9/14/2013 0.00
9/15/2013 0.12
9/16/2013 0.55
9/17/2013 0.00
9/18/2013 0.00
9/19/2013 0.18
9/20/2013 0.24
9/21/2013 0.00
9/22/2013 0.00
9/23/2013
9/24/2013
9/25/2013
9/26/2013
9/27/2013
9/28/2013
9/29/2013 0.46
9/30/2013



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/1/2012 7:00 AM 0.00 0.0 M M M
10/2/2012 7:00 AM 0.00 0.0 M M M
10/3/2012 7:00 AM 0.00 0.0 M M M
10/4/2012 7:00 AM 0.17 M M M M Occasional showers.
10/5/2012 7:00 AM 0.13 M M M M
10/6/2012 7:00 AM 0.00 0.0 M M M
10/7/2012 7:00 AM 0.00 0.0 M M M
10/8/2012 7:00 AM 0.00 0.0 M M M
10/9/2012 7:00 AM 0.00 0.0 M M M
10/10/2012 7:00 AM 0.25 M M M M A cold, steady rain for a couple hours through the evening. Feels like this has been the most rain we've gotten for a couple months.
10/11/2012 7:00 AM 0.00 0.0 M M M
10/12/2012 7:00 AM 0.05 M M M M Some spotty light rain showers in the late evening.
10/13/2012 7:00 AM 0.11 M M M M It was raining at 4, but I don't know what happened beyond that.
10/14/2012 9:00 AM 0.66 M M M M I don't remember when it started raining or stopped, because it seemed like it was raining all day. Still, a nice, healthy amount of rain.
10/15/2012 7:00 AM 0.62 M M M M Heavy rain and very gusty winds especially around 2:30. Very dark skies. Some indications of slightly-above-severe winds in parts of Carol Stream.
10/16/2012 7:00 AM 0.00 0.0 M M M
10/17/2012 7:00 AM 0.00 0.0 M M M
10/18/2012 7:00 AM 0.78 M M M M Heavy rain. Another good soaker!
10/19/2012 8:00 AM 0.23 M M M M Ongoing light drizzle at the time of observation.
10/20/2012 7:00 AM 0.10 M M M M
10/21/2012 7:00 AM 0.00 0.0 M M M
10/22/2012 7:00 AM 0.00 0.0 M M M
10/23/2012 8:00 AM 0.33 M M M M Lots of fog. 0.23" before 2:30p, 0.10" after.
10/24/2012 7:00 AM 0.07 M M M M
10/25/2012 7:00 AM 0.00 0.0 M M M
10/26/2012 7:00 AM 0.22 M M M M Periodic heavy rain
10/27/2012 7:00 AM 0.00 0.0 M M M
10/28/2012 7:00 AM 0.00 0.0 M M M
10/29/2012 7:00 AM 0.00 0.0 M M M
10/30/2012 7:00 AM 0.00 0.0 M M M
11/1/2012 7:00 AM 0.00 0.0 M M M
11/2/2012 7:00 AM 0.00 0.0 M M M
11/3/2012 7:00 AM 0.00 0.0 M M M
11/4/2012 7:00 AM T M M M M
11/5/2012 7:00 AM 0.00 0.0 M M M
11/6/2012 7:00 AM 0.00 0.0 M M M
11/7/2012 7:00 AM 0.21 M M M M
11/8/2012 7:00 AM 0.00 0.0 M M M
11/9/2012 7:00 AM 0.00 0.0 M M M
11/10/2012 7:00 AM 0.00 0.0 M M M
11/11/2012 7:00 AM 0.26 M M M M Lots of lightning. Lots of thunder. Apparently not that much rain.
11/12/2012 7:00 AM 0.43 M M M M Water in the gauge had not frozen by the time I got to it, even though the temperature read 28.8°. Odd.
11/13/2012 7:00 AM 0.02 0.2 0.02 0.0 M Light to moderate snow at 11:00 or so. I don't remember the exact time so I won't put it down.
11/14/2012 7:00 AM 0.00 0.0 M M M
11/15/2012 7:00 AM 0.00 0.0 M M M
11/16/2012 7:00 AM 0.00 0.0 M M M
11/17/2012 7:00 AM 0.00 0.0 M M M
11/18/2012 7:00 AM 0.00 0.0 M M M
11/19/2012 7:00 AM 0.00 0.0 M M M
11/20/2012 7:00 AM 0.01 M M M M More than enough to wet the ground.
11/21/2012 7:00 AM 0.00 0.0 M M M
11/22/2012 7:00 AM 0.00 0.0 M M M
11/23/2012 7:00 AM 0.21 0.0 M M M Switched precip from 11/24 to 11/23. // NJB
11/24/2012 7:00 AM 0.00 0.0 M M M Day of observation switched to 11/23. // NJB
11/25/2012 7:00 AM 0.00 0.0 M M M
11/26/2012 7:00 AM 0.00 0.0 M M M
11/27/2012 7:00 AM 0.00 0.0 M M M
11/28/2012 7:00 AM 0.00 0.0 M M M
11/29/2012 7:00 AM 0.00 0.0 M M M
11/30/2012 7:00 AM 0.00 0.0 M M M
12/1/2012 7:00 AM 0.00 0.0 M M M
12/2/2012 7:00 AM 0.03 M M M M
12/3/2012 7:00 AM 0.00 0.0 M M M
12/4/2012 7:00 AM 0.00 0.0 M M M
12/5/2012 7:00 AM 0.00 0.0 M M M
12/6/2012 7:00 AM 0.00 0.0 M M M
12/7/2012 8:00 AM 0.10 M M M M Probably some light rain overnight. Still 41 degrees though, highly unusual for December.
12/8/2012 7:00 AM 0.18 M M M M Neither snow, nor a hint of snow.
12/9/2012 9:00 AM 0.11 M M M M Still no snow or frozen precipitation.
12/12/2012 7:00 AM 0.00 0.0 M M M
12/13/2012 7:00 AM 0.00 0.0 M M M
12/14/2012 7:00 AM 0.00 0.0 M M M
12/15/2012 10:15 AM 0.21 M M M M Still raining.
12/16/2012 8:30 AM 0.36 M M M M Some showers earlier (at about 5 this morning).
12/17/2012 7:00 AM 0.00 0.0 M M M
12/18/2012 7:00 AM 0.00 0.0 M M M
12/19/2012 7:00 AM 0.04 T M M M Prepping for the storm!
12/20/2012 7:50 AM 1.03 0.0 0.00 M M Some sleet last night. If only this had fallen as all snow!
12/21/2012 7:00 AM 0.31 0.3 M M M
12/22/2012 7:00 AM 0.00 0.0 M M M
12/23/2012 7:00 AM 0.00 0.0 M M M
12/24/2012 7:00 AM 0.00 0.0 M M M
12/25/2012 7:00 AM 0.00 0.0 M M M
12/26/2012 7:00 AM T T T M M
12/27/2012 7:00 AM 0.00 0.0 M M M
12/28/2012 7:00 AM 0.00 0.0 M M M
12/29/2012 9:00 AM 0.04 1.0 0.04 1.0 M Very light, very fluffy snow.
12/30/2012 7:00 AM 0.00 0.0 M M M
12/31/2012 7:00 AM 0.00 0.0 M M M
1/1/2013 7:00 AM 0.00 0.0 M M M
1/2/2013 7:00 AM 0.00 0.0 M M M
1/3/2013 7:00 AM 0.00 0.0 M M M
1/4/2013 7:00 AM 0.00 0.0 M M M
1/5/2013 7:00 AM 0.00 0.0 M M M
1/6/2013 7:00 AM 0.05 0.3 M 0.0 0.00 All of the snow melted before I got to measure it, so this is a plausible estimate
1/7/2013 7:00 AM 0.00 0.0 M M M
1/8/2013 7:00 AM 0.00 0.0 M M M
1/9/2013 7:00 AM 0.00 0.0 M M M
1/10/2013 7:00 AM 0.00 0.0 M M M
1/11/2013 8:00 AM 0.90 M M M M Lots of moderate rain. No thunderstorms though.
1/12/2013 7:00 AM 0.00 0.0 M M M
1/13/2013 7:00 AM 0.20 0.0 0.00 0.0 0.00 Moderate freezing rain, no snow accumulation. About 1/8" total ice accumulation.
1/14/2013 7:00 AM 0.00 0.0 M M M
1/15/2013 7:00 AM 0.00 0.0 M M M
1/16/2013 7:00 AM 0.00 0.0 M M M
1/17/2013 7:00 AM 0.00 0.0 M M M
1/18/2013 7:00 AM 0.00 0.0 M M M
1/19/2013 7:00 AM 0.00 0.0 M M M
1/20/2013 7:00 AM 0.00 0.0 M M M
1/21/2013 7:00 AM T 0.1 M M M Will provide better estimate shortly
1/22/2013 7:00 AM 0.00 0.0 M M M
1/23/2013 7:00 AM 0.00 0.0 M M M
1/24/2013 7:00 AM 0.00 0.0 M M M
1/25/2013 7:45 AM 0.08 0.8 0.08 1.0 M Still some moderate snow falling.
1/26/2013 7:00 AM 0.01 M M M M
1/27/2013 7:00 AM 0.00 0.0 M M M
1/28/2013 7:00 AM 0.63 M M M M Ice yesterday. Dense fog now.
1/29/2013 8:30 AM 0.13 M M M M No thunder.
1/30/2013 7:45 AM 1.84 0.0 0.00 0.0 0.00 Some mist at time of observation.
1/31/2013 8:00 AM 0.14 0.2 M 0.5 M Some minor flooding from past few days of rain near Armstrong Park.
2/1/2013 7:00 AM 0.00 0.0 M M M
2/4/2013 8:30 AM 0.23 2.9 M M M Will update later with snow cover.
2/5/2013 7:00 AM T T M M M
2/6/2013 7:00 AM 0.05 0.5 M M M Finding it very hard to take measurements with a toddler. Doing the best I can.
2/7/2013 8:00 AM 0.24 T T 3.0 M About 0.10" ice accumulation.
2/8/2013 7:00 AM 0.92 1.3 M M M Mostly, it rained.
2/9/2013 7:00 AM 0.00 0.0 M M M
2/10/2013 10:00 AM 0.10 M M M M
2/11/2013 7:00 AM 0.27 M M M M
2/12/2013 7:00 AM 0.00 0.0 M M M
2/13/2013 7:00 AM 0.00 0.0 M M M
2/14/2013 7:00 AM 0.00 0.0 M M M
2/15/2013 7:00 AM T M M M M
2/16/2013 7:00 AM 0.00 0.0 M M M
2/19/2013 7:00 AM 0.41 0.1 M M M
2/22/2013 8:00 AM 0.32 2.4 M 2.5 M
2/26/2013 7:00 AM 0.00 0.0 0.00 0.0 0.00
2/27/2013 7:00 AM 0.46 4.5 0.46 3.5 M And it is still snowing, though lightly. 1.1" overnight.
2/28/2013 7:00 AM 0.06 0.4 0.06 M M
3/1/2013 7:00 AM 0.04 0.1 M M M
3/2/2013 7:00 AM 0.00 0.0 M M M
3/3/2013 7:00 AM T T M M M
3/4/2013 7:00 AM 0.00 0.0 0.00 2.0 0.50
3/5/2013 9:00 AM 0.17 1.1 M 3.5 M Not sure how much of this fell as snow. Estimated 0.5" new snow in the last 20 minutes, but now snow is *really* falling very heavily, with visibilities nearing 1/4 mile.
3/6/2013 7:00 AM 0.52 6.5 M 10.0 M Moderate to heavy snow all day yesterday. Additional 1.1" after last SWR was submitted. Unfortunately I have no place to take a core of just the new snow. Storm total: 7.6".
3/7/2013 7:00 AM 0.00 0.0 M M M
3/8/2013 7:00 AM 0.00 0.0 M M M
3/9/2013 8:00 AM 0.00 0.0 M M M Light rain, 32.9 degrees.
3/12/2013 9:00 AM 0.10 0.2 M M M
3/13/2013 7:00 AM 0.01 0.1 M M M Estimate... will take actual reading when I get home.
3/14/2013 7:00 AM 0.00 0.0 M M M
3/15/2013 7:00 AM 0.00 0.0 M M M
3/16/2013 7:00 AM 0.18 M M M M I seem to remember this being all rain.
3/17/2013 7:00 AM 0.00 0.0 M M M
3/18/2013 8:25 AM 0.07 0.1 M 0.0 M Currently moderate freezing rain.
3/19/2013 7:00 AM 0.02 T M M M
3/20/2013 7:00 AM 0.00 0.0 M M M
3/21/2013 7:00 AM T 0.1 M M M
3/22/2013 7:00 AM 0.00 0.0 M M M
3/23/2013 7:00 AM 0.00 0.0 M M M
3/24/2013 7:00 AM 0.00 0.0 M M M
3/25/2013 7:00 AM T 0.1 M M M
3/26/2013 7:00 AM T T M M M
3/27/2013 7:00 AM T T M M M Some snow flurries throughout the day.
4/1/2013 7:00 AM 0.00 0.0 M M M
4/2/2013 7:00 AM 0.00 0.0 M M M
4/3/2013 7:00 AM 0.00 0.0 M M M
4/4/2013 7:00 AM 0.00 0.0 M M M
4/5/2013 7:00 AM 0.00 0.0 M M M
4/6/2013 7:00 AM 0.00 0.0 M M M
4/7/2013 7:00 AM 0.07 M M M M
4/8/2013 8:00 AM 0.45 M M M M Thunder at 5:30 AM, followed by moderate to heavy rain.
4/9/2013 8:00 AM 0.20 M M M M Thunder at 2:30 AM.
4/10/2013 7:00 AM 0.05 M M M M Pre-thunderstorm.
4/11/2013 8:00 AM 1.23 M M M M
4/12/2013 7:00 AM 0.13 M M M M
4/13/2013 7:00 AM 0.02 M M M M
4/14/2013 7:00 AM 0.00 0.0 M M M
4/15/2013 7:00 AM 0.05 M M M M A trace at the start of the period, then 0.05 overnight.
4/16/2013 7:00 AM 0.40 M M M M
4/17/2013 7:00 AM 0.00 0.0 M M M
4/18/2013 6:55 AM 5.03 M M M M Severe flooding in the lower portions of Carol Stream. Houses are already beginning to be flooded across from Armstrong Park. Klein Creek way out of its banks. 3.28" in the last 8 hours.
4/19/2013 8:45 AM 0.83 M M M M Some graupel this morning. The streets are still flooded - nearly-to-over a foot in the cul-de-sac, but down 2-4" from last night. EDIT: forgot to add previous readings. See spreadsheet: https://docs.google.com/spreadsheet/ccc?key=0AhhuIZ5xS9ZjdFNnZ194RnVPRUNSa1Zab09saEF1NUE#gid=0
4/20/2013 7:00 AM 0.00 0.0 M M M
4/21/2013 7:00 AM 0.00 0.0 M M M
4/22/2013 7:00 AM 0.00 0.0 M M M
4/23/2013 7:00 AM 0.05 M M M M
4/24/2013 7:00 AM 0.72 M M M M
4/25/2013 7:00 AM 0.08 M M M M
4/26/2013 7:00 AM 0.00 0.0 M M M
4/27/2013 7:00 AM 0.00 0.0 M M M
4/28/2013 7:00 AM 0.04 M M M M
4/29/2013 7:00 AM 0.00 0.0 M M M
5/1/2013 7:00 AM 0.00 0.0 M M M
5/2/2013 7:00 AM 0.00 0.0 M M M
5/3/2013 7:00 AM 0.08 M M M M Still some light sprinkles around.
5/4/2013 7:00 AM 0.09 M M M M
5/5/2013 7:00 AM 0.00 0.0 M M M
5/6/2013 7:00 AM 0.00 0.0 M M M
5/7/2013 7:00 AM 0.00 0.0 M M M
5/8/2013 7:00 AM 0.00 0.0 M M M
5/9/2013 7:00 AM 0.00 0.0 M M M
5/10/2013 8:20 AM 0.57 M M M M No thunder.
5/11/2013 7:00 AM 0.00 0.0 M M M
5/12/2013 7:00 AM 0.00 0.0 M M M
5/13/2013 7:00 AM 0.00 0.0 M M M
5/14/2013 7:00 AM T M M M M
5/15/2013 7:00 AM 0.00 0.0 M M M
5/16/2013 7:00 AM 0.00 0.0 M M M
5/17/2013 7:00 AM 0.00 0.0 M M M
5/18/2013 7:00 AM 0.02 M M M M
5/19/2013 7:00 AM 0.00 0.0 M M M
5/20/2013 7:00 AM 0.00 0.0 M M M
5/21/2013 8:50 AM 1.42 M M M M Lots of lightning and loud thunder, and strong (50 mph) downdrafts to boot.
5/22/2013 8:45 AM 0.48 M M M M Light rain, power outage at around 4am.
5/23/2013 9:00 AM 0.65 M M M M
5/24/2013 7:00 AM 0.00 0.0 M M M
5/25/2013 7:00 AM 0.00 0.0 M M M
5/26/2013 7:00 AM 0.00 0.0 M M M
5/27/2013 7:00 AM 0.04 M M M M
5/28/2013 7:00 AM 0.19 M M M M Some thunder.
5/29/2013 8:15 AM 0.21 M M M M Some showers at time of observation.
5/31/2013 8:45 AM 0.49 M M M M Thunder and heavy rain, but no flooding.
6/1/2013 7:00 AM 0.09 M M M M
6/2/2013 7:00 AM M 0.0 M M M //0.0 edited to NA pending confirmation w/ observer. -SDH-
6/3/2013 7:00 AM 0.00 0.0 M M M
6/4/2013 7:00 AM 0.00 0.0 M M M
6/5/2013 7:00 AM 0.00 0.0 M M M
6/6/2013 9:30 AM 0.28 M M M M Just light rain.
6/7/2013 7:00 AM 0.06 M M M M
6/8/2013 7:00 AM 0.00 0.0 M M M
6/9/2013 7:00 AM 0.00 0.0 M M M
6/10/2013 7:00 AM 0.09 M M M M
6/11/2013 7:00 AM 0.00 0.0 M M M
6/12/2013 7:00 AM 0.16 M M M M
6/13/2013 7:00 AM 0.38 M M M M Lots of thunder but no severe.
6/14/2013 7:00 AM 0.00 0.0 M M M
6/15/2013 9:30 AM 0.07 M M M M
6/16/2013 7:00 AM 0.00 0.0 M M M
6/17/2013 7:00 AM 0.00 0.0 M M M
6/18/2013 7:00 AM 0.05 M M M M
6/19/2013 7:00 AM 0.00 0.0 M M M
6/20/2013 7:00 AM 0.00 0.0 M M M
6/21/2013 7:00 AM 0.00 0.0 M M M
6/22/2013 8:25 AM 0.62 M M M M Moderate rain continues. 0.49" fell yesterday morning into the afternoon, 0.13" overnight.
6/23/2013 7:00 AM 0.00 0.0 M M M
6/24/2013 8:00 AM 0.04 M M M M
6/25/2013 8:30 AM 0.27 M M M M 50-55 mph wind gusts at this location. Other parts of town exceeded 60-65 mph (medium-sized branches, live, down). Power is still out.
6/26/2013 7:00 AM 0.11 M M M M Lots of thunder between 4 and 7 AM, no actual accumulation.
6/27/2013 7:00 AM 0.21 M M M M Will double check in 4 hrs.
6/28/2013 7:00 AM 0.00 0.0 M M M
6/29/2013 7:00 AM 0.18 M M M M
6/30/2013 7:00 AM 0.00 0.0 M M M
7/1/2013 7:00 AM 0.00 0.0 M M M
7/2/2013 7:00 AM 0.00 0.0 M M M
7/3/2013 8:00 AM 0.24 M M M M Some pretty heavy showers for a time.
7/4/2013 7:00 AM 0.02 M M M M
7/5/2013 7:00 AM 0.00 0.0 M M M
7/6/2013 7:00 AM 0.00 0.0 M M M
7/7/2013 7:00 AM 0.00 0.0 M M M
7/8/2013 8:40 AM 0.05 M M M M But I can hear thunder with rain approaching...
7/9/2013 7:00 AM 0.86 M M M M
7/10/2013 7:00 AM 0.01 M M M M
7/11/2013 7:00 AM 0.00 0.0 M M M
7/12/2013 7:00 AM 0.00 0.0 M M M
7/13/2013 7:00 AM 0.00 0.0 M M M
7/14/2013 7:00 AM 0.00 0.0 M M M
7/15/2013 7:00 AM 0.00 0.0 M M M
7/16/2013 7:00 AM 0.05 M M M M
7/17/2013 7:00 AM 0.00 0.0 M M M
7/18/2013 7:00 AM 0.00 0.0 M M M
7/19/2013 7:00 AM 0.05 M M M M Seems to be a popular number this week.
7/20/2013 7:00 AM 0.56 M M M M Fell in roughly two 30-minute increments.
7/21/2013 7:00 AM 0.33 M M M M Some thunder with moderate rain. Not too windy.
7/22/2013 7:00 AM T M M M M
7/23/2013 7:00 AM 0.16 M M M M
7/24/2013 7:00 AM 0.00 0.0 M M M
7/25/2013 7:00 AM 0.00 0.0 M M M
7/26/2013 8:00 AM 0.03 M M M M
7/27/2013 7:00 AM 0.39 M M M M Occasional moderate rain with some heavy rain.
7/28/2013 7:00 AM 0.00 0.0 M M M
7/29/2013 7:00 AM 0.00 0.0 M M M
7/30/2013 7:00 AM T M M M M
7/31/2013 7:00 AM 0.20 M M M M
8/1/2013 7:00 AM 0.91 M M M M See significant weather report.
8/2/2013 8:15 AM 0.14 M M M M
8/3/2013 7:00 AM 0.00 0.0 M M M
8/4/2013 7:00 AM 0.00 0.0 M M M
8/5/2013 7:00 AM T M M M M
8/6/2013 7:00 AM 0.05 M M M M
8/7/2013 7:00 AM 0.01 M M M M
8/8/2013 7:00 AM 0.00 0.0 M M M
8/9/2013 7:00 AM 0.00 0.0 M M M
8/10/2013 7:00 AM 0.00 0.0 M M M
8/11/2013 7:00 AM 0.00 0.0 M M M
8/12/2013 7:00 AM T M M M M
8/13/2013 7:00 AM 0.00 0.0 M M M
8/14/2013 7:00 AM 0.00 0.0 M M M
8/15/2013 7:00 AM 0.00 0.0 M M M
8/16/2013 7:00 AM 0.00 0.0 M M M
8/17/2013 7:00 AM 0.00 0.0 M M M
8/18/2013 7:00 AM 0.00 0.0 M M M
8/19/2013 7:00 AM 0.00 0.0 M M M
8/20/2013 7:00 AM 0.00 0.0 M M M
8/21/2013 7:00 AM 0.00 0.0 M M M
8/22/2013 8:45 AM 0.30 M M M M Finally, some accumulating rain! All fell overnight.
8/23/2013 7:00 AM 0.83 M M M M Good, healthy rain. Storm total 1.13".
8/24/2013 7:00 AM 0.00 0.0 M M M
8/25/2013 7:00 AM 0.00 0.0 M M M
8/26/2013 7:00 AM 0.00 0.0 M M M
8/27/2013 7:00 AM 0.00 0.0 M M M
8/28/2013 7:00 AM 0.00 0.0 M M M
8/29/2013 7:00 AM 0.00 0.0 M M M
8/30/2013 7:00 AM 0.00 0.0 M M M
8/31/2013 7:00 AM 0.63 M M M M Moderate rain and thunderstorms.
9/1/2013 7:00 AM 0.89 M M M M Heavy rain / t-storms. 71.8° F now.
9/2/2013 7:00 AM 0.95 M M M M See significant weather report. Torrential rain, continuous lightning, gusty downdrafts.
9/3/2013 7:00 AM 0.00 0.0 M M M
9/4/2013 7:00 AM 0.00 0.0 M M M
9/5/2013 7:00 AM 0.00 0.0 M M M
9/6/2013 7:00 AM 0.00 0.0 M M M
9/7/2013 7:00 AM 0.00 0.0 M M M
9/8/2013 7:00 AM T M M M M
9/9/2013 7:00 AM T M M M M
9/10/2013 7:00 AM 0.00 0.0 M M M
9/11/2013 7:00 AM 0.00 0.0 M M M
9/12/2013 7:00 AM 0.02 M M M M
9/13/2013 7:00 AM 0.00 0.0 M M M
9/14/2013 7:00 AM 0.00 0.0 M M M
9/15/2013 9:00 AM 0.12 M M M M Some heavy showers.
9/16/2013 7:00 AM 0.55 M M M M Light to moderate rain showers all day.
9/17/2013 7:00 AM 0.00 0.0 M M M
9/18/2013 7:00 AM 0.00 0.0 M M M
9/19/2013 8:15 AM 0.18 M M M M Updated because heavy rain just started.
9/20/2013 8:45 AM 0.24 M M M M What happened to the rain?
9/21/2013 7:00 AM 0.00 0.0 M M M
9/22/2013 7:00 AM 0.00 0.0 M M M
9/29/2013 8:50 AM 0.46 M M M M No thunder, just moderate to heavy rain.



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
12/10/2012 12/11/2012 10:00 PM 2 0.11 M M And traces of snow.
2/2/2013 2/03/2013 12:00 AM 2 0.17 2.5 M
3/10/2013 3/11/2013 8:00 AM 2 1.03 0.0 M Light rain at time of observation. Some backyard flooding.



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
4/10/2013 7:30 AM 1/4" Pea Size 1/4" Pea Size Rice Hard|White Ice 3 1min no damage Continuous True Same time as rain Same time as smaller hail
4/17/2013 10:54 AM The largest was roughly marble-sized. Bigger than a pea. 3/8" 1/4" Pea Size 1/4" Pea Size Hard|Clear Ice 2 no damage Continuous True Before rain Before smaller hail
4/17/2013 12:03 PM Gonna be a long day. 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Hard|White Ice 2 no damage Continuous True After rain Same time as smaller hail
8/30/2013 6:05 PM 1/4" Pea Size 1/4" Pea Size 1/4" Pea Size Hard|White Ice 1 1min no damage Continuous True After rain Same time as smaller hail