Station Overview Station Location
Station Number IL-LS-44 Latitude 41.347328
Station Name Ottawa 0.7 ESE Longitude -88.82692
County La Salle Elevation (ft) 483



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 2.89 1.46 30 1.46 30 0.00 0 0 8 2 0.0 0 0
Nov 11 3.20 4.75 30 4.75 30 0.00 0 0 11 3 0.0 0 0
Dec 11 2.23 2.29 26 2.29 26 0.00 0 0 10 1 0.7 1 2
Jan 12 1.63 1.12 30 1.12 30 0.00 0 0 9 5 9.9 4 1
Feb 12 1.57 1.35 29 1.35 29 0.00 0 0 10 2 1.5 2 2
March 12 2.61 1.66 30 1.34 27 0.32 3 1 9 2 0.0 0 0
April 12 3.30 1.33 28 1.33 28 0.00 0 0 7 4 0.0 0 0
May 12 4.20 4.11 14 4.11 14 0.00 0 0 9 0 0.0 0 0
June 12 3.96 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 3.85 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 12 3.32 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 36.79" 18.07" 217 days 17.75" 214 0.32" 3 days 1 73 days 19 days 12.1" 7 days 5 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 0.00
10/2/2011 0.00
10/3/2011 0.00
10/4/2011 0.00
10/5/2011 0.00
10/6/2011 0.00
10/7/2011 0.00
10/8/2011 0.00
10/9/2011 0.00
10/10/2011 0.00
10/11/2011 0.00
10/12/2011 0.00
10/13/2011 0.70
10/14/2011 0.08
10/15/2011 0.00
10/16/2011 T
10/17/2011 0.03
10/18/2011 0.00
10/19/2011 0.03
10/20/2011 0.21
10/21/2011 0.00
10/22/2011 0.00
10/23/2011 0.00
10/24/2011 0.07
10/25/2011 0.00
10/26/2011 0.24
10/27/2011
10/28/2011 T
10/29/2011 0.00
10/30/2011 0.00
10/31/2011 0.10
11/1/2011 0.00
11/2/2011 0.00
11/3/2011 0.26
11/4/2011 0.60
11/5/2011 0.00
11/6/2011 0.00
11/7/2011 0.05
11/8/2011 1.45
11/9/2011 0.91
11/10/2011 0.01
11/11/2011 T
11/12/2011 0.00
11/13/2011 0.00
11/14/2011 0.00
11/15/2011 0.05
11/16/2011 0.00
11/17/2011 0.00
11/18/2011 0.00
11/19/2011 0.00
11/20/2011 0.00
11/21/2011 0.05
11/22/2011 0.01
11/23/2011 0.19
11/24/2011 0.00
11/25/2011 0.00
11/26/2011 T
11/27/2011 1.17
11/28/2011 T
11/29/2011 0.00
11/30/2011 0.00
12/1/2011 0.00
12/2/2011 0.00
12/3/2011 0.03
12/4/2011 0.21
12/5/2011 0.00
12/6/2011 T
12/7/2011
12/8/2011 0.00
12/9/2011 0.03
12/10/2011 0.00
12/11/2011 0.00
12/12/2011 0.00
12/13/2011
12/14/2011 1.06
12/15/2011 0.61
12/16/2011 0.00
12/17/2011 0.03
12/18/2011 0.00
12/19/2011 0.00
12/20/2011 0.00
12/21/2011 0.06
12/22/2011 0.00
12/23/2011 0.04
12/24/2011 0.00
12/25/2011 0.00
12/26/2011
12/27/2011
12/28/2011
12/29/2011 0.00
12/30/2011 0.10
12/31/2011 0.12
Day of YearDaily PrcpMultiday Prcp
1/1/2012 0.07
1/2/2012 T
1/3/2012 0.00
1/4/2012 0.00
1/5/2012 0.00
1/6/2012 0.00
1/7/2012 0.00
1/8/2012 0.00
1/9/2012 0.00
1/10/2012 0.00
1/11/2012 0.00
1/12/2012 T
1/13/2012 0.32
1/14/2012 0.01
1/15/2012 0.00
1/16/2012 0.00
1/17/2012 0.13
1/18/2012 0.02
1/19/2012 0.02
1/20/2012 0.00
1/21/2012 0.34
1/22/2012 0.00
1/23/2012 0.11
1/24/2012 T
1/25/2012 0.00
1/26/2012 0.00
1/27/2012 T
1/28/2012 0.10
1/29/2012 T
1/30/2012
1/31/2012 0.00
2/1/2012 T
2/2/2012 0.00
2/3/2012 0.00
2/4/2012 0.21
2/5/2012 0.01
2/6/2012 0.00
2/7/2012 0.00
2/8/2012 T
2/9/2012 0.00
2/10/2012 0.00
2/11/2012 0.02
2/12/2012 0.00
2/13/2012 0.00
2/14/2012 0.05
2/15/2012 0.00
2/16/2012 0.40
2/17/2012 0.00
2/18/2012 0.00
2/19/2012 0.00
2/20/2012 0.00
2/21/2012 0.13
2/22/2012 0.03
2/23/2012 0.04
2/24/2012 0.21
2/25/2012 0.00
2/26/2012 0.00
2/27/2012 0.00
2/28/2012 0.00
2/29/2012 0.25
3/1/2012 0.00
3/2/2012 0.00
3/3/2012 0.35
3/4/2012 0.01
3/5/2012 0.00
3/6/2012 0.00
3/7/2012 0.00
3/8/2012 0.17
3/9/2012 0.00
3/10/2012 0.00
3/11/2012 0.00
3/12/2012 0.25
3/13/2012 0.00
3/14/2012 0.00
3/15/2012 0.00
3/16/2012 T
3/17/2012 0.00
3/18/2012 0.17
3/19/2012 0.00
3/20/2012 0.31
3/21/2012 0.00
3/22/2012
3/23/2012 **
3/24/2012 **
3/25/2012 0.32
3/26/2012 T
3/27/2012 0.04
3/28/2012 0.02
3/29/2012 0.00
3/30/2012 0.02
3/31/2012 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2012 0.15
4/2/2012 0.00
4/3/2012 0.00
4/4/2012 0.00
4/5/2012 0.00
4/6/2012 0.00
4/7/2012 0.00
4/8/2012 T
4/9/2012 0.00
4/10/2012 0.00
4/11/2012 0.00
4/12/2012 0.00
4/13/2012 0.00
4/14/2012 T
4/15/2012 0.00
4/16/2012 0.31
4/17/2012 0.02
4/18/2012 0.00
4/19/2012 0.00
4/20/2012 0.02
4/21/2012
4/22/2012 0.00
4/23/2012 0.00
4/24/2012 T
4/25/2012
4/26/2012 T
4/27/2012 0.00
4/28/2012 0.49
4/29/2012 0.02
4/30/2012 0.32
5/1/2012 0.16
5/2/2012 0.70
5/3/2012 0.03
5/4/2012 1.15
5/5/2012 0.00
5/6/2012 0.00
5/7/2012 1.88
5/8/2012 0.13
5/9/2012 0.00
5/10/2012
5/11/2012
5/12/2012 0.03
5/13/2012 0.02
5/14/2012
5/15/2012
5/16/2012 0.01
5/17/2012 0.00
5/18/2012 0.00
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
10/1/2011 9:00 AM 0.00 0.0 M M M
10/2/2011 9:00 AM 0.00 0.0 M M M
10/3/2011 9:00 AM 0.00 0.0 M M M
10/4/2011 9:00 AM 0.00 0.0 M M M
10/5/2011 9:00 AM 0.00 0.0 M M M
10/6/2011 9:00 AM 0.00 0.0 M M M
10/7/2011 9:00 AM 0.00 0.0 M M M
10/8/2011 9:00 AM 0.00 0.0 M M M
10/9/2011 9:00 AM 0.00 0.0 M M M
10/10/2011 9:00 AM 0.00 0.0 M M M
10/11/2011 9:00 AM 0.00 0.0 M M M
10/12/2011 9:00 AM 0.00 0.0 M M M
10/13/2011 9:00 AM 0.70 M M M M
10/14/2011 9:00 AM 0.08 M M M M
10/15/2011 9:00 AM 0.00 0.0 M M M
10/16/2011 9:00 AM T M M M M
10/17/2011 9:00 AM 0.03 M M M M
10/18/2011 9:00 AM 0.00 0.0 M M M
10/19/2011 9:00 AM 0.03 M M M M
10/20/2011 9:00 AM 0.21 M M M M
10/21/2011 9:00 AM 0.00 0.0 M M M
10/22/2011 9:00 AM 0.00 0.0 M M M
10/23/2011 9:00 AM 0.00 0.0 M M M
10/24/2011 9:00 AM 0.07 M M M M
10/25/2011 9:00 AM 0.00 0.0 M M M
10/26/2011 9:00 AM 0.24 M M M M
10/28/2011 9:00 AM T M M M M
10/29/2011 9:00 AM 0.00 0.0 M M M
10/30/2011 9:00 AM 0.00 0.0 M M M
10/31/2011 9:00 AM 0.10 M M M M
11/1/2011 9:00 AM 0.00 0.0 M M M
11/2/2011 9:00 AM 0.00 0.0 M M M
11/3/2011 9:00 AM 0.26 M M M M
11/4/2011 9:00 AM 0.60 M M M M
11/5/2011 9:00 AM 0.00 0.0 M M M
11/6/2011 9:00 AM 0.00 0.0 M M M
11/7/2011 9:00 AM 0.05 M M M M
11/8/2011 9:00 AM 1.45 M M M M
11/9/2011 9:00 AM 0.91 M M M M
11/10/2011 9:00 AM 0.01 M M M M
11/11/2011 9:00 AM T M M M M
11/12/2011 9:00 AM 0.00 0.0 M M M
11/13/2011 9:00 AM 0.00 0.0 M M M
11/14/2011 9:00 AM 0.00 0.0 M M M
11/15/2011 9:00 AM 0.05 M M M M
11/16/2011 9:00 AM 0.00 0.0 M M M
11/17/2011 9:00 AM 0.00 0.0 M M M
11/18/2011 9:00 AM 0.00 0.0 M M M
11/19/2011 9:00 AM 0.00 0.0 M M M
11/20/2011 9:00 AM 0.00 0.0 M M M
11/21/2011 9:00 AM 0.05 M M M M
11/22/2011 9:00 AM 0.01 M M M M
11/23/2011 9:00 AM 0.19 M M M M
11/24/2011 9:00 AM 0.00 0.0 M M M
11/25/2011 9:00 AM 0.00 0.0 M M M
11/26/2011 9:00 AM T M M M M
11/27/2011 9:00 AM 1.17 M M M M
11/28/2011 9:00 AM T M M M M
11/29/2011 9:00 AM 0.00 0.0 M M M
11/30/2011 9:00 AM 0.00 0.0 M M M
12/1/2011 9:00 AM 0.00 0.0 M M M
12/2/2011 9:00 AM 0.00 0.0 M M M
12/3/2011 9:00 AM 0.03 M M M M
12/4/2011 9:00 AM 0.21 M M M M
12/5/2011 9:00 AM 0.00 0.0 M M M
12/6/2011 9:00 AM T M M M M
12/8/2011 9:00 AM 0.00 0.0 M M M
12/9/2011 9:00 AM 0.03 M M 0.2 0.03
12/10/2011 9:00 AM 0.00 0.0 M M M
12/11/2011 9:00 AM 0.00 0.0 M T M
12/12/2011 9:00 AM 0.00 0.0 M M M
12/14/2011 9:00 AM 1.06 M M M M
12/15/2011 9:00 AM 0.61 M M M M
12/16/2011 9:00 AM 0.00 0.0 M M M
12/17/2011 9:00 AM 0.03 0.7 0.03 0.7 M
12/18/2011 9:00 AM 0.00 0.0 M M M Frosty morning.
12/19/2011 9:00 AM 0.00 0.0 M M M
12/20/2011 9:00 AM 0.00 0.0 M M M
12/21/2011 9:00 AM 0.06 M M M M
12/22/2011 9:00 AM 0.00 0.0 M M M Heavy Fog arpund 7Am.
12/23/2011 9:00 AM 0.04 M M M M Very light snow that melted upon arrival at mother earth
12/24/2011 9:00 AM 0.00 0.0 M M M
12/25/2011 9:00 AM 0.00 0.0 M M M Santa has another sled full of toys to deliver.No reports for 3 days.
12/29/2011 9:00 AM 0.00 0.0 M M M
12/30/2011 9:00 AM 0.10 M M M M
12/31/2011 9:00 AM 0.12 M M M M
1/1/2012 9:00 AM 0.07 M M M M
1/2/2012 9:00 AM T T T M M
1/3/2012 9:00 AM 0.00 0.0 M M M
1/4/2012 9:00 AM 0.00 0.0 M M M
1/5/2012 9:00 AM 0.00 0.0 M M M
1/6/2012 9:00 AM 0.00 0.0 M M M
1/7/2012 9:00 AM 0.00 0.0 M M M
1/8/2012 9:00 AM 0.00 0.0 M M M
1/9/2012 9:00 AM 0.00 0.0 M M M
1/10/2012 9:00 AM 0.00 0.0 M M M
1/11/2012 9:00 AM 0.00 0.0 M M M
1/12/2012 9:00 AM T T T M M Just getting started here.
1/13/2012 9:00 AM 0.32 4.0 0.32 4.0 0.32 Very windy making it impossible to get a correct reading.
1/14/2012 9:00 AM 0.01 T M M M
1/15/2012 9:00 AM 0.00 0.0 M M M
1/16/2012 9:00 AM 0.00 0.0 M M M
1/17/2012 9:00 AM 0.13 M M M M
1/18/2012 9:00 AM 0.02 T 0.02 M M
1/19/2012 9:00 AM 0.02 0.5 0.02 M M
1/20/2012 9:00 AM 0.00 0.0 M M M
1/21/2012 9:00 AM 0.34 5.0 M M M
1/22/2012 9:00 AM 0.00 0.0 M M M
1/23/2012 9:00 AM 0.11 M M M M
1/24/2012 9:00 AM T M M M M
1/25/2012 9:00 AM 0.00 0.0 M M M
1/26/2012 9:00 AM 0.00 0.0 M M M
1/27/2012 9:00 AM T M M M M
1/28/2012 9:00 AM 0.10 0.4 0.10 M M Hard to measure new snow as it melted upon contact.Later it froze to aa glaze.
1/29/2012 9:00 AM T T M M M
1/31/2012 9:00 AM 0.00 0.0 M M M
2/1/2012 9:00 AM T M M M M
2/2/2012 9:00 AM 0.00 0.0 M M M
2/3/2012 9:00 AM 0.00 0.0 M M M
2/4/2012 9:00 AM 0.21 M M M M
2/5/2012 9:00 AM 0.01 M M M M
2/6/2012 9:00 AM 0.00 0.0 M M M
2/7/2012 9:00 AM 0.00 0.0 M M M
2/8/2012 9:00 AM T T M T M
2/9/2012 9:00 AM 0.00 0.0 M M M
2/10/2012 9:00 AM 0.00 0.0 M M M
2/11/2012 9:00 AM 0.02 T 0.02 T 0.02 Snow mostly melted as it came down.
2/12/2012 9:00 AM 0.00 0.0 M M M
2/13/2012 9:00 AM 0.00 0.0 M M M
2/14/2012 9:00 AM 0.05 0.6 0.05 0.5 0.05
2/15/2012 9:00 AM 0.00 0.0 M M M
2/16/2012 9:00 AM 0.40 M M M M
2/17/2012 8:56 AM 0.00 0.0 M M M
2/18/2012 8:50 AM 0.00 0.0 M M M
2/19/2012 8:45 AM 0.00 0.0 M M M
2/20/2012 8:55 AM 0.00 0.0 M M M
2/21/2012 8:49 AM 0.13 T M T M
2/22/2012 8:57 AM 0.03 M M M M
2/23/2012 8:54 AM 0.04 M M M M
2/24/2012 8:55 AM 0.21 0.9 0.21 0.9 0.21 Very hard to measure snow as most melted as it fell or because of time of ob.
2/25/2012 8:44 AM 0.00 0.0 M M M
2/26/2012 9:00 AM 0.00 0.0 M M M
2/27/2012 9:00 AM 0.00 0.0 M M M
2/28/2012 9:00 AM 0.00 0.0 M M M
2/29/2012 8:45 AM 0.25 M M M M
3/1/2012 9:00 AM 0.00 0.0 M M M
3/2/2012 8:54 AM 0.00 0.0 M M M
3/3/2012 8:50 AM 0.35 T M T M
3/4/2012 8:54 AM 0.01 T M T M
3/5/2012 8:54 AM 0.00 0.0 M M M
3/6/2012 9:00 AM 0.00 0.0 M M M
3/7/2012 9:00 AM 0.00 0.0 M M M
3/8/2012 8:41 AM 0.17 M M M M
3/9/2012 9:00 AM 0.00 0.0 M M M
3/10/2012 9:30 AM 0.00 0.0 M M M
3/11/2012 8:48 AM 0.00 0.0 M M M
3/12/2012 8:45 AM 0.25 M M M M
3/13/2012 9:29 AM 0.00 0.0 M M M
3/14/2012 8:55 AM 0.00 0.0 M M M
3/15/2012 9:00 AM 0.00 0.0 M M M
3/16/2012 8:48 AM T M M M M
3/17/2012 8:50 AM 0.00 0.0 M M M
3/18/2012 8:51 AM 0.17 M M M M
3/19/2012 8:31 AM 0.00 0.0 M M M
3/20/2012 8:53 AM 0.31 M M M M
3/21/2012 8:47 AM 0.00 0.0 M M M I'll be out-of-town over the weekend,so no reports.
3/26/2012 9:00 AM T M M M M
3/27/2012 8:45 AM 0.04 M M M M
3/28/2012 8:45 AM 0.02 M M M M
3/29/2012 8:47 AM 0.00 0.0 M M M
3/30/2012 8:42 AM 0.02 M M M M
3/31/2012 9:50 AM 0.00 0.0 M M M
4/1/2012 8:50 AM 0.15 M M M M
4/2/2012 9:00 AM 0.00 0.0 M M M
4/3/2012 8:52 AM 0.00 0.0 M M M
4/4/2012 9:25 AM 0.00 0.0 M M M
4/5/2012 9:00 AM 0.00 0.0 M M M
4/6/2012 8:45 AM 0.00 0.0 M M M
4/7/2012 8:50 AM 0.00 0.0 M M M
4/8/2012 8:45 AM T M M M M
4/9/2012 9:10 AM 0.00 0.0 M M M
4/10/2012 8:40 AM 0.00 0.0 M M M
4/11/2012 8:50 AM 0.00 0.0 M M M
4/12/2012 8:50 AM 0.00 0.0 M M M
4/13/2012 9:00 AM 0.00 0.0 M M M
4/14/2012 8:50 AM T M M M M
4/15/2012 9:02 AM 0.00 0.0 M M M
4/16/2012 9:00 AM 0.31 M M M M
4/17/2012 8:45 AM 0.02 M M M M
4/18/2012 9:00 AM 0.00 0.0 M M M
4/19/2012 8:52 AM 0.00 0.0 M M M
4/20/2012 8:40 AM 0.02 M M M M
4/22/2012 9:00 AM 0.00 0.0 M M M
4/23/2012 9:00 AM 0.00 0.0 M M M
4/24/2012 8:50 AM T M M M M
4/26/2012 8:50 AM T M M M M
4/27/2012 8:40 AM 0.00 0.0 M M M
4/28/2012 8:40 AM 0.49 M M M M
4/29/2012 8:40 AM 0.02 M M M M
4/30/2012 8:35 AM 0.32 M M M M
5/1/2012 8:35 AM 0.16 M M M M
5/2/2012 9:00 AM 0.70 M M M M
5/3/2012 8:55 AM 0.03 M M M M
5/4/2012 8:45 AM 1.15 M M M M
5/5/2012 8:45 AM 0.00 0.0 M M M
5/6/2012 8:40 AM 0.00 0.0 M M M
5/7/2012 8:45 AM 1.88 M M M M
5/8/2012 8:45 AM 0.13 M M M M
5/9/2012 8:55 AM 0.00 0.0 M M M
5/12/2012 8:50 AM 0.03 M M M M
5/13/2012 8:50 AM 0.02 M M M M
5/16/2012 8:30 AM 0.01 M M M M
5/17/2012 8:50 AM 0.00 0.0 M M M
5/18/2012 9:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
3/23/2012 3/25/2012 12:00 AM 3 0.32 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