Station Overview Station Location
Station Number IL-LS-41 Latitude 41.328152
Station Name Ottawa 1.6 SSE Longitude -88.829964
County La Salle Elevation (ft) 594



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 10 2.89 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 10 3.20 2.21 14 1.76 12 0.45 2 1 5 2 0.0 0 0
Dec 10 2.22 0.45 7 0.45 7 0.00 0 0 2 2 4.5 2 2
Jan 11 1.63 0.40 14 0.40 14 0.00 0 0 3 4 3.8 3 10
Feb 11 1.56 0.23 2 0.23 2 0.00 0 0 2 0 1.0 1 1
March 11 2.61 0.00 1 0.00 1 0.00 0 0 0 0 0.0 0 0
April 11 3.29 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
May 11 4.19 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
June 11 3.94 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
July 11 4.01 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Aug 11 3.84 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Sept 11 3.31 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Water Year Totals: 36.69" 3.29" 38 days 2.84" 36 0.45" 2 days 1 12 days 8 days 9.3" 6 days 13 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
10/1/2010
10/2/2010
10/3/2010
10/4/2010
10/5/2010
10/6/2010
10/7/2010
10/8/2010
10/9/2010
10/10/2010
10/11/2010
10/12/2010
10/13/2010
10/14/2010
10/15/2010
10/16/2010
10/17/2010
10/18/2010
10/19/2010
10/20/2010
10/21/2010
10/22/2010
10/23/2010
10/24/2010
10/25/2010
10/26/2010
10/27/2010
10/28/2010
10/29/2010
10/30/2010
10/31/2010
11/1/2010
11/2/2010
11/3/2010
11/4/2010
11/5/2010
11/6/2010
11/7/2010
11/8/2010 0.00
11/9/2010 0.00
11/10/2010 0.00
11/11/2010 0.00
11/12/2010 T
11/13/2010 T
11/14/2010 0.00
11/15/2010 0.01
11/16/2010
11/17/2010
11/18/2010
11/19/2010
11/20/2010
11/21/2010
11/22/2010 0.10 **
11/23/2010 0.35 0.45
11/24/2010
11/25/2010 0.45
11/26/2010
11/27/2010
11/28/2010
11/29/2010
11/30/2010 0.85
12/1/2010 T
12/2/2010
12/3/2010
12/4/2010
12/5/2010
12/6/2010 0.00
12/7/2010 T
12/8/2010
12/9/2010
12/10/2010
12/11/2010
12/12/2010
12/13/2010
12/14/2010
12/15/2010
12/16/2010
12/17/2010
12/18/2010
12/19/2010
12/20/2010
12/21/2010 0.30
12/22/2010 0.00
12/23/2010 0.00
12/24/2010 0.15
12/25/2010
12/26/2010
12/27/2010
12/28/2010
12/29/2010
12/30/2010
12/31/2010
Day of YearDaily PrcpMultiday Prcp
1/1/2011
1/2/2011
1/3/2011
1/4/2011
1/5/2011
1/6/2011
1/7/2011 0.00
1/8/2011 T
1/9/2011 0.00
1/10/2011 0.00
1/11/2011 0.13
1/12/2011 0.07
1/13/2011 0.00
1/14/2011 0.00
1/15/2011 0.00
1/16/2011 0.00
1/17/2011 T
1/18/2011
1/19/2011
1/20/2011
1/21/2011
1/22/2011
1/23/2011
1/24/2011
1/25/2011
1/26/2011
1/27/2011
1/28/2011 0.20
1/29/2011
1/30/2011 T
1/31/2011 T
2/1/2011 0.20
2/2/2011
2/3/2011
2/4/2011
2/5/2011
2/6/2011
2/7/2011
2/8/2011
2/9/2011
2/10/2011
2/11/2011
2/12/2011
2/13/2011
2/14/2011
2/15/2011
2/16/2011
2/17/2011
2/18/2011
2/19/2011
2/20/2011
2/21/2011
2/22/2011
2/23/2011
2/24/2011 0.03
2/25/2011
2/26/2011
2/27/2011
2/28/2011
3/1/2011
3/2/2011
3/3/2011 0.00
3/4/2011
3/5/2011
3/6/2011
3/7/2011
3/8/2011
3/9/2011
3/10/2011
3/11/2011
3/12/2011
3/13/2011
3/14/2011
3/15/2011
3/16/2011
3/17/2011
3/18/2011
3/19/2011
3/20/2011
3/21/2011
3/22/2011
3/23/2011
3/24/2011
3/25/2011
3/26/2011
3/27/2011
3/28/2011
3/29/2011
3/30/2011
3/31/2011
Day of YearDaily PrcpMultiday Prcp
4/1/2011
4/2/2011
4/3/2011
4/4/2011
4/5/2011
4/6/2011
4/7/2011
4/8/2011
4/9/2011
4/10/2011
4/11/2011
4/12/2011
4/13/2011
4/14/2011
4/15/2011
4/16/2011
4/17/2011
4/18/2011
4/19/2011
4/20/2011
4/21/2011
4/22/2011
4/23/2011
4/24/2011
4/25/2011
4/26/2011
4/27/2011
4/28/2011
4/29/2011
4/30/2011
5/1/2011
5/2/2011
5/3/2011
5/4/2011
5/5/2011
5/6/2011
5/7/2011
5/8/2011
5/9/2011
5/10/2011
5/11/2011
5/12/2011
5/13/2011
5/14/2011
5/15/2011
5/16/2011
5/17/2011
5/18/2011
5/19/2011
5/20/2011
5/21/2011
5/22/2011
5/23/2011
5/24/2011
5/25/2011
5/26/2011
5/27/2011
5/28/2011
5/29/2011
5/30/2011
5/31/2011
6/1/2011
6/2/2011
6/3/2011
6/4/2011
6/5/2011
6/6/2011
6/7/2011
6/8/2011
6/9/2011
6/10/2011
6/11/2011
6/12/2011
6/13/2011
6/14/2011
6/15/2011
6/16/2011
6/17/2011
6/18/2011
6/19/2011
6/20/2011
6/21/2011
6/22/2011
6/23/2011
6/24/2011
6/25/2011
6/26/2011
6/27/2011
6/28/2011
6/29/2011
6/30/2011
Day of YearDaily PrcpMultiday Prcp
7/1/2011
7/2/2011
7/3/2011
7/4/2011
7/5/2011
7/6/2011
7/7/2011
7/8/2011
7/9/2011
7/10/2011
7/11/2011
7/12/2011
7/13/2011
7/14/2011
7/15/2011
7/16/2011
7/17/2011
7/18/2011
7/19/2011
7/20/2011
7/21/2011
7/22/2011
7/23/2011
7/24/2011
7/25/2011
7/26/2011
7/27/2011
7/28/2011
7/29/2011
7/30/2011
7/31/2011
8/1/2011
8/2/2011
8/3/2011
8/4/2011
8/5/2011
8/6/2011
8/7/2011
8/8/2011
8/9/2011
8/10/2011
8/11/2011
8/12/2011
8/13/2011
8/14/2011
8/15/2011
8/16/2011
8/17/2011
8/18/2011
8/19/2011
8/20/2011
8/21/2011
8/22/2011
8/23/2011
8/24/2011
8/25/2011
8/26/2011
8/27/2011
8/28/2011
8/29/2011
8/30/2011
8/31/2011
9/1/2011
9/2/2011
9/3/2011
9/4/2011
9/5/2011
9/6/2011
9/7/2011
9/8/2011
9/9/2011
9/10/2011
9/11/2011
9/12/2011
9/13/2011
9/14/2011
9/15/2011
9/16/2011
9/17/2011
9/18/2011
9/19/2011
9/20/2011
9/21/2011
9/22/2011
9/23/2011
9/24/2011
9/25/2011
9/26/2011
9/27/2011
9/28/2011
9/29/2011
9/30/2011



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
11/8/2010 8:00 AM 0.00 0.0 M M M
11/9/2010 8:00 AM 0.00 0.0 M M M
11/10/2010 8:00 AM 0.00 0.0 M M M
11/11/2010 8:00 AM 0.00 0.0 M M M
11/12/2010 8:00 AM T M M M M Several drops of rain in gauge, but under .01.
11/13/2010 8:00 AM T 0.0 M M M Several drops of rain in gauge, but under .01.
11/14/2010 8:00 AM 0.00 0.0 M M M Gauge was completely dry.
11/15/2010 8:00 AM 0.01 M M M M
11/22/2010 8:00 AM 0.10 M M M M LIGHT RAIN - MULTI-DAY ACCUMULATION WILL BE RECORDED
11/23/2010 8:00 AM 0.35 M M M M
11/25/2010 8:00 AM 0.45 M M M M OVERCAST
11/30/2010 8:00 AM 0.85 M M M M
12/1/2010 8:00 AM T T M T M
12/6/2010 8:00 AM 0.00 0.0 M M M
12/7/2010 8:00 AM T T M M M
12/21/2010 8:00 AM 0.30 3.0 1.00 6.5 M
12/22/2010 8:00 AM 0.00 0.0 M M M
12/23/2010 8:00 AM 0.00 0.0 M M M
12/24/2010 12:40 PM 0.15 1.5 0.15 8.0 M
1/7/2011 8:00 AM 0.00 0.0 0.00 T M Trace amounts of ice remain.
1/8/2011 8:00 AM T T T T M
1/9/2011 8:00 AM 0.00 0.0 M T M TRACE AMOUNTS OF OLD ICE REMAIN.
1/10/2011 8:00 AM 0.00 0.0 M T M
1/11/2011 8:00 AM 0.13 1.3 0.13 1.3 0.13
1/12/2011 8:00 AM 0.07 0.7 0.07 2.0 0.20
1/13/2011 8:00 AM 0.00 0.0 0.00 2.0 0.20
1/14/2011 8:00 AM 0.00 0.0 0.00 2.0 0.20
1/15/2011 8:00 AM 0.00 0.0 0.00 2.0 0.20
1/16/2011 8:00 AM 0.00 0.0 0.00 2.0 0.20
1/17/2011 8:00 AM T T T 2.0 0.20
1/28/2011 8:00 AM 0.20 1.8 0.20 2.0 0.20
1/30/2011 8:00 AM T T T 2.0 0.20
1/31/2011 8:00 AM T T T 2.0 0.20
2/1/2011 8:00 AM 0.20 1.0 0.20 3.0 0.40 LIGHT SNOW AT THIS TIME
2/24/2011 8:00 AM 0.03 T T T M 0.03 FROM RAIN. AT THE TIME OF THE READING THE WIND SPEED WAS 5 MPH FROM THE NE WITH A BAROMETRIC PRESSURE OF 29.97 AND RISING. THE HUMIDITY IS 83% WITH A TEMPERATURE OF 34 ACTUAL AND 29 WITH WIND CHILL FACTORED IN.
3/3/2011 8:00 AM 0.00 0.0 M M M



Start Date End Date & Time Duration in Days Precipitation Snow Depth Snow Depth SWE Notes
11/22/2010 11/23/2010 12:00 AM 2 0.45 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