Station Overview Station Location
Station Number IA-SR-12 Latitude 42.054416
Station Name Ames 2.1 N Longitude -93.626664
County Story Elevation (ft) 961



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 09 2.61 7.77 27 4.42 13 3.35 14 4 7 2 0.0 0 0
Nov 09 2.05 0.91 29 0.84 12 0.07 17 5 2 0 0.0 0 0
Dec 09 1.28 2.67 31 2.44 13 0.23 18 5 9 0 22.5 7 9
Jan 10 0.86 0.80 20 0.31 1 0.49 19 7 1 0 6.5 1 1
Feb 10 1.00 0.91 25 0.76 11 0.15 14 5 4 1 12.0 4 11
March 10 2.13 0.53 7 0.00 0 0.53 7 2 0 0 0.0 0 0
April 10 3.58 2.91 24 0.99 2 1.92 22 6 1 0 0.0 0 0
May 10 4.79 3.74 28 1.48 13 2.26 15 3 5 2 0.0 0 0
June 10 5.39 7.94 27 4.55 14 3.39 13 3 9 0 0.0 0 0
July 10 4.70 4.64 30 0.70 5 3.94 25 7 2 0 0.0 0 0
Aug 10 4.52 8.84 30 8.05 8 0.79 22 5 4 0 0.0 0 0
Sept 10 3.39 6.78 26 4.36 10 2.42 16 3 3 0 0.0 0 0
Water Year Totals: 36.30" 48.44" 304 days 28.90" 102 19.54" 202 days 55 47 days 5 days 41.0" 12 days 21 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
10/1/2009 0.75
10/2/2009 0.54
10/3/2009 0.22
10/4/2009 0.00
10/5/2009
10/6/2009 0.25
10/7/2009 0.00
10/8/2009 0.17
10/9/2009
10/10/2009 T
10/11/2009 0.00
10/12/2009 **
10/13/2009 **
10/14/2009 **
10/15/2009 0.24
10/16/2009 T
10/17/2009 **
10/18/2009 **
10/19/2009 **
10/20/2009 0.00
10/21/2009
10/22/2009 0.90
10/23/2009 **
10/24/2009 **
10/25/2009 **
10/26/2009 **
10/27/2009 2.36
10/28/2009
10/29/2009 1.67
10/30/2009 0.67
10/31/2009 0.00
11/1/2009 0.00
11/2/2009 0.00
11/3/2009 **
11/4/2009 **
11/5/2009 0.00
11/6/2009 **
11/7/2009 **
11/8/2009 **
11/9/2009 0.00
11/10/2009 0.00
11/11/2009
11/12/2009 0.00
11/13/2009 0.00
11/14/2009 0.00
11/15/2009 0.00 **
11/16/2009 **
11/17/2009 T
11/18/2009 0.00
11/19/2009 0.07
11/20/2009
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 **
11/24/2009 0.02
11/25/2009 0.77
11/26/2009 **
11/27/2009 **
11/28/2009 **
11/29/2009 **
11/30/2009 0.05
12/1/2009 0.00
12/2/2009 **
12/3/2009 **
12/4/2009 **
12/5/2009 0.02
12/6/2009
12/7/2009 0.10
12/8/2009 0.15
12/9/2009 0.44 **
12/10/2009 **
12/11/2009 **
12/12/2009 **
12/13/2009 **
12/14/2009 0.00
12/15/2009 **
12/16/2009 0.09
12/17/2009 0.00
12/18/2009 0.00
12/19/2009 0.00
12/20/2009 **
12/21/2009 **
12/22/2009 0.12
12/23/2009 0.14
12/24/2009 0.38
12/25/2009 0.94
12/26/2009 0.02
12/27/2009 0.15
12/28/2009 **
12/29/2009 **
12/30/2009 0.00
12/31/2009 0.12
Day of YearDaily PrcpMultiday Prcp
1/1/2010 **
1/2/2010 **
1/3/2010 0.00
1/4/2010 **
1/5/2010 **
1/6/2010 0.00
1/7/2010 0.31
1/8/2010 **
1/9/2010 **
1/10/2010 T
1/11/2010 **
1/12/2010 **
1/13/2010 **
1/14/2010 0.00
1/15/2010 **
1/16/2010 T
1/17/2010 **
1/18/2010 T
1/19/2010 **
1/20/2010 0.49
1/21/2010
1/22/2010
1/23/2010
1/24/2010
1/25/2010
1/26/2010
1/27/2010
1/28/2010
1/29/2010
1/30/2010
1/31/2010
2/1/2010
2/2/2010
2/3/2010
2/4/2010 0.00
2/5/2010 **
2/6/2010 **
2/7/2010 0.07
2/8/2010 0.23
2/9/2010 0.23
2/10/2010 **
2/11/2010 0.00
2/12/2010
2/13/2010 **
2/14/2010 0.08
2/15/2010 0.07
2/16/2010 **
2/17/2010 0.00
2/18/2010 0.00
2/19/2010 0.00
2/20/2010 0.23
2/21/2010 0.00
2/22/2010 0.00
2/23/2010 T **
2/24/2010 **
2/25/2010 **
2/26/2010 T
2/27/2010 0.00
2/28/2010 **
3/1/2010 0.00
3/2/2010 **
3/3/2010 **
3/4/2010 **
3/5/2010 **
3/6/2010 **
3/7/2010 0.53
3/8/2010
3/9/2010
3/10/2010
3/11/2010
3/12/2010
3/13/2010
3/14/2010
3/15/2010
3/16/2010
3/17/2010
3/18/2010
3/19/2010
3/20/2010
3/21/2010
3/22/2010
3/23/2010
3/24/2010
3/25/2010
3/26/2010
3/27/2010
3/28/2010
3/29/2010
3/30/2010
3/31/2010
Day of YearDaily PrcpMultiday Prcp
4/1/2010
4/2/2010
4/3/2010
4/4/2010
4/5/2010
4/6/2010 0.99
4/7/2010 0.00
4/8/2010 **
4/9/2010 0.12
4/10/2010 **
4/11/2010 **
4/12/2010 **
4/13/2010 **
4/14/2010 **
4/15/2010 **
4/16/2010 **
4/17/2010 **
4/18/2010 **
4/19/2010 **
4/20/2010 0.19
4/21/2010 **
4/22/2010 T
4/23/2010 **
4/24/2010 0.83
4/25/2010
4/26/2010 **
4/27/2010 0.20
4/28/2010 **
4/29/2010 **
4/30/2010 0.58
5/1/2010 0.00
5/2/2010 0.00
5/3/2010 T
5/4/2010
5/5/2010 0.10
5/6/2010 **
5/7/2010 **
5/8/2010 **
5/9/2010 **
5/10/2010 0.37
5/11/2010 1.11
5/12/2010 **
5/13/2010 1.89
5/14/2010 T
5/15/2010 **
5/16/2010 **
5/17/2010 T
5/18/2010 0.00
5/19/2010
5/20/2010 0.00
5/21/2010 0.15
5/22/2010
5/23/2010 0.02
5/24/2010 0.00
5/25/2010 0.00
5/26/2010 0.10
5/27/2010 **
5/28/2010 **
5/29/2010 **
5/30/2010 **
5/31/2010 **
6/1/2010 0.32
6/2/2010 0.50
6/3/2010
6/4/2010 0.57 **
6/5/2010 **
6/6/2010 **
6/7/2010 **
6/8/2010 0.70
6/9/2010 0.18
6/10/2010 **
6/11/2010 **
6/12/2010 **
6/13/2010 **
6/14/2010 2.37
6/15/2010
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.40
6/19/2010 0.10
6/20/2010 0.00
6/21/2010
6/22/2010 0.16
6/23/2010 0.15
6/24/2010 0.02
6/25/2010 0.00
6/26/2010 2.47
6/27/2010
6/28/2010 0.00
6/29/2010 **
6/30/2010 **
Day of YearDaily PrcpMultiday Prcp
7/1/2010 **
7/2/2010 **
7/3/2010 **
7/4/2010 0.08
7/5/2010
7/6/2010 **
7/7/2010 0.00 **
7/8/2010 **
7/9/2010 0.00
7/10/2010 **
7/11/2010 **
7/12/2010 **
7/13/2010 **
7/14/2010 **
7/15/2010 0.33
7/16/2010 0.00
7/17/2010 **
7/18/2010 1.44
7/19/2010 0.45
7/20/2010 **
7/21/2010 **
7/22/2010 0.56
7/23/2010 0.25
7/24/2010
7/25/2010 0.00
7/26/2010 **
7/27/2010 **
7/28/2010 T
7/29/2010 **
7/30/2010 1.53
7/31/2010 **
8/1/2010 0.00
8/2/2010 0.33
8/3/2010 **
8/4/2010 **
8/5/2010 **
8/6/2010 **
8/7/2010 0.34
8/8/2010
8/9/2010 3.29
8/10/2010 1.23
8/11/2010 3.20
8/12/2010 **
8/13/2010 **
8/14/2010 **
8/15/2010 **
8/16/2010 **
8/17/2010 **
8/18/2010 **
8/19/2010 0.35
8/20/2010 **
8/21/2010 **
8/22/2010 0.10
8/23/2010 0.00
8/24/2010 0.00
8/25/2010 0.00
8/26/2010 **
8/27/2010 **
8/28/2010 **
8/29/2010 **
8/30/2010 0.00
8/31/2010 0.00
9/1/2010 3.03
9/2/2010 **
9/3/2010 **
9/4/2010 **
9/5/2010 **
9/6/2010 **
9/7/2010 **
9/8/2010 0.35
9/9/2010
9/10/2010 0.00
9/11/2010 0.35
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 0.00
9/16/2010
9/17/2010 0.00
9/18/2010 **
9/19/2010 0.75
9/20/2010
9/21/2010
9/22/2010 0.98
9/23/2010 **
9/24/2010 **
9/25/2010 **
9/26/2010 **
9/27/2010 **
9/28/2010 **
9/29/2010 1.32
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
10/2/2009 10:00 AM 0.54 M M M M
10/3/2009 10:00 AM 0.22 M M M M
10/4/2009 8:00 AM 0.00 0.0 M M M
10/6/2009 8:00 AM 0.25 M M M M
10/7/2009 8:00 AM 0.00 0.0 M M M
10/8/2009 11:00 AM 0.17 M M M M
10/10/2009 8:00 AM T T M M M Trace of snow
10/11/2009 8:00 AM 0.00 0.0 M M M
10/16/2009 8:00 AM T M M M M
10/22/2009 8:00 AM 0.90 M M M M
10/29/2009 11:30 AM 1.67 M M M M
10/30/2009 8:00 AM 0.67 M M M M
10/31/2009 8:00 AM 0.00 0.0 M M M
11/1/2009 8:00 AM 0.00 0.0 M M M
11/2/2009 8:00 AM 0.00 0.0 M M M
11/10/2009 8:00 AM 0.00 0.0 M M M
11/12/2009 8:00 AM 0.00 0.0 M M M
11/13/2009 8:00 AM 0.00 0.0 M M M
11/14/2009 8:00 AM 0.00 0.0 M M M
11/15/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 8:00 AM 0.00 0.0 M M M
11/19/2009 8:00 AM 0.07 M M M M
11/21/2009 8:00 AM 0.00 0.0 M M M
11/22/2009 8:00 AM 0.00 0.0 M M M
11/25/2009 8:00 AM 0.77 M M M M
12/1/2009 8:00 AM 0.00 0.0 M M M
12/7/2009 8:00 AM 0.10 1.0 M M M
12/8/2009 11:00 AM 0.15 1.5 M M M
12/9/2009 1:00 PM 0.44 11.0 M M M Due to the extreme winds, the snow depth measurement is best estimate and I do not feel the melted snow mesured was the total amount due to snow blowing over the top of the gauge.
12/17/2009 8:00 AM 0.00 0.0 M 11.0 M
12/18/2009 8:00 AM 0.00 0.0 M 11.0 M
12/19/2009 8:00 AM 0.00 0.0 M 11.0 M
12/23/2009 5:00 PM 0.14 0.0 M 9.0 M Freezing mist, freezing rain, and rain most all daylight hours.
12/24/2009 10:00 AM 0.38 M M 9.0 M
12/25/2009 10:00 AM 0.94 3.0 M 7.0 M
12/26/2009 8:00 AM 0.02 1.5 M 8.5 M
12/27/2009 8:00 AM 0.15 3.0 M 11.0 M
12/31/2009 8:00 AM 0.12 1.5 M 11.5 M
1/7/2010 8:00 AM 0.31 6.5 M 14.5 M
2/4/2010 8:00 AM 0.00 0.0 M 9.0 M Have been on vacation for 2 weeks, thus no reports
2/8/2010 8:00 AM 0.23 3.5 0.23 11.0 3.49 This is my first report of total SWE on ground
2/9/2010 8:00 AM 0.23 4.5 0.23 15.5 M
2/15/2010 11:00 AM 0.07 1.5 0.70 14.0 M
2/18/2010 6:30 AM 0.00 0.0 M 13.0 M
2/19/2010 8:00 AM 0.00 0.0 M 13.0 M
2/20/2010 8:00 AM 0.23 2.5 0.23 15.5 M
2/21/2010 8:00 AM 0.00 0.0 M 15.0 M
2/22/2010 8:00 AM 0.00 0.0 M 13.0 M
2/23/2010 8:00 AM T 0.0 M 13.0 M
2/27/2010 8:00 AM 0.00 0.0 M 13.5 M
4/6/2010 8:00 AM 0.99 M M M M This is my first report in the last month - have returned from vacation !!
4/7/2010 8:00 AM 0.00 0.0 M M M
5/1/2010 8:00 AM 0.00 0.0 M M M
5/2/2010 8:00 AM 0.00 0.0 M M M
5/3/2010 8:00 AM T M M M M
5/5/2010 7:00 AM 0.10 M M M M
5/11/2010 8:00 AM 1.11 M M M M
5/14/2010 8:00 AM T M M M M
5/18/2010 8:00 AM 0.00 0.0 M M M
5/20/2010 8:00 AM 0.00 0.0 M M M
5/21/2010 8:00 AM 0.15 M M M M
5/23/2010 8:00 AM 0.02 M M M M
5/24/2010 8:00 AM 0.00 0.0 M M M
5/25/2010 8:00 AM 0.00 0.0 M M M
5/26/2010 5:00 AM 0.10 M M M M
6/2/2010 8:00 AM 0.50 M M M M
6/4/2010 8:00 AM 0.57 M M M M
6/9/2010 8:00 AM 0.18 0.0 M M M
6/16/2010 8:00 AM 0.00 0.0 M M M
6/17/2010 8:00 AM 0.00 0.0 M M M
6/18/2010 8:00 AM 0.40 M M M M
6/19/2010 8:00 AM 0.10 M M M M
6/20/2010 8:00 AM 0.00 0.0 M M M
6/22/2010 8:00 AM 0.16 M M M M
6/23/2010 8:00 AM 0.15 M M M M
6/24/2010 8:00 AM 0.02 M M M M
6/25/2010 6:00 AM 0.00 0.0 M M M
6/26/2010 8:00 AM 2.47 M M M M All this came after 11:30 PM last night
6/28/2010 8:00 AM 0.00 0.0 M M M
7/7/2010 8:00 AM 0.00 0.0 M M M
7/16/2010 8:00 AM 0.00 0.0 M M M
7/19/2010 9:30 AM 0.45 M M M M
7/23/2010 8:00 AM 0.25 M M M M
7/25/2010 8:00 AM 0.00 0.0 M M M
8/2/2010 10:00 AM 0.33 M M M M
8/9/2010 8:00 AM 3.29 M M M M VERY HEAVY RAIN - 1 inch in a half hr. period
8/10/2010 8:00 AM 1.23 M M M M
8/11/2010 8:00 AM 3.20 M M M M Rainfall was at least 1" per hour around 11 PM
8/23/2010 8:00 AM 0.00 0.0 M M M
8/24/2010 8:00 AM 0.00 0.0 M M M
8/25/2010 8:00 AM 0.00 0.0 M M M
8/31/2010 8:00 AM 0.00 0.0 M M M
9/1/2010 7:30 AM 3.03 M M M M Early rate was 2"/hour
9/10/2010 7:00 AM 0.00 0.0 M M M
9/11/2010 8:00 AM 0.35 M M M M
9/12/2010 8:00 AM 0.00 0.0 M M M
9/13/2010 8:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 8:00 AM 0.00 0.0 M M M
9/17/2010 8:00 AM 0.00 0.0 M M M
9/22/2010 7:00 AM 0.98 M M M M
9/30/2010 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
9/24/2009 10/01/2009 2:30 PM 8 0.75 M M ALL PRECIP. OCCURRED ON 10-1-09
10/12/2009 10/15/2009 4:00 PM 4 0.24 M M
10/17/2009 10/20/2009 8:00 AM 4 0.00 M M
10/23/2009 10/27/2009 8:00 AM 5 2.36 M M Most precip. occurred on 10-23
11/3/2009 11/05/2009 1:00 PM 3 0.00 M M
11/6/2009 11/09/2009 7:00 AM 4 0.00 M M
11/15/2009 11/17/2009 6:00 PM 3 T M M
11/23/2009 11/24/2009 6:00 AM 2 0.02 M M
11/26/2009 11/30/2009 1:00 PM 5 0.05 M M
12/2/2009 12/05/2009 8:00 AM 4 0.02 T M
12/9/2009 12/14/2009 7:00 AM 6 0.00 M M
12/15/2009 12/16/2009 8:00 AM 2 0.09 12.0 M
12/20/2009 12/22/2009 1:00 PM 3 0.12 11.0 M
12/28/2009 12/30/2009 8:00 AM 3 0.00 10.0 M
1/1/2010 1/03/2010 8:00 AM 3 0.00 11.0 M
1/4/2010 1/06/2010 8:00 AM 3 0.00 8.0 M
1/8/2010 1/10/2010 8:00 AM 3 T 14.0 M
1/11/2010 1/14/2010 8:00 AM 4 0.00 9.5 M
1/15/2010 1/16/2010 8:00 AM 2 T 9.5 M
1/17/2010 1/18/2010 8:00 AM 2 T 9.5 M
1/19/2010 1/20/2010 6:00 PM 2 0.49 M M
2/5/2010 2/07/2010 9:00 AM 3 0.07 9.5 M
2/10/2010 2/11/2010 8:00 AM 2 0.00 15.0 M
2/13/2010 2/14/2010 10:00 AM 2 0.08 16.5 M
2/16/2010 2/17/2010 8:00 AM 2 0.00 13.0 M
2/23/2010 2/26/2010 8:00 AM 4 T 13.5 M
2/28/2010 3/01/2010 8:00 AM 2 0.00 13.5 4.90
3/2/2010 3/07/2010 7:00 AM 6 0.53 9.0 M Precipitation was during the last 24 hr. My reports are temporarily halted until first week of April - see you again then!
4/8/2010 4/09/2010 8:00 AM 2 0.12 M M
4/10/2010 4/20/2010 7:00 PM 11 0.19 M M This precipitation fell on 4-11-2010
4/21/2010 4/22/2010 8:00 AM 2 T M M
4/23/2010 4/24/2010 8:00 AM 2 0.83 M M All of the precip. fell in the latter 24hr (2nd day)
4/26/2010 4/27/2010 8:00 AM 2 0.20 M M
4/28/2010 4/30/2010 3:00 PM 3 0.58 M M Listed precip. was in the last 24 hr.
5/6/2010 5/10/2010 3:00 PM 5 0.37 M M
5/12/2010 5/13/2010 10:00 AM 2 1.89 M M Nearly all precip. was in the last 24 hr. Hail occurred yesterday - marble size.
5/15/2010 5/17/2010 8:00 AM 3 T M M
5/27/2010 6/01/2010 3:00 PM 6 0.32 M M
6/4/2010 6/08/2010 8:00 AM 5 0.70 M M
6/10/2010 6/14/2010 3:00 PM 5 2.37 M M
6/29/2010 7/04/2010 8:00 AM 6 0.08 M M All precip. came in last 12 hr. of period.
7/6/2010 7/09/2010 8:00 AM 4 0.00 M M
7/10/2010 7/15/2010 8:00 AM 6 0.33 M M
7/17/2010 7/18/2010 8:00 AM 2 1.44 M M Severe windstorm early Sunday morning! Continuous lightning. Started about 2:30 AM with continuous wind for the next hour. Power went out at 2:45 AM and was out for the next 5 hr. Initially, wind was from north, but then gradually turned NE and then E. Many limbs down and flattened garden plants. Based on local reports and personal observations, winds were in the range of 70 to 80 mph. Worst storm we have seen here in the last 25 years.
7/20/2010 7/22/2010 9:00 AM 3 0.56 M M
7/26/2010 7/28/2010 8:00 AM 3 T M M
7/29/2010 7/30/2010 11:00 AM 2 1.53 M M All precip. fell morning of 7-30. One inch fell in 20 minutes from 7:30 to 7:50 AM
7/31/2010 8/01/2010 8:00 AM 2 0.00 M M
8/3/2010 8/07/2010 8:00 AM 5 0.34 M M
8/12/2010 8/19/2010 8:00 AM 8 0.35 M M
8/20/2010 8/22/2010 8:00 AM 3 0.10 M M
8/26/2010 8/30/2010 6:00 PM 5 0.00 M M
9/2/2010 9/08/2010 7:00 AM 7 0.35 M M
9/18/2010 9/19/2010 9:00 PM 2 0.75 M M
9/23/2010 9/29/2010 12:00 AM 7 1.32 M M Most of this precip. fell on 9-25-10



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