Station Overview Station Location
Station Number SD-BF-1 Latitude 44.08
Station Name Gann Valley 7.8 WNW Longitude -99.13
County Buffalo Elevation (ft) 1638



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 1.72 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Nov 09 0.69 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Dec 09 0.36 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Jan 10 0.33 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
Feb 10 0.46 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 10 1.25 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
April 10 1.99 2.95 26 2.95 26 0.00 0 0 12 0 0.0 0 0
May 10 3.17 4.93 30 4.93 30 0.00 0 0 17 1 0.0 0 0
June 10 3.57 7.97 30 7.97 30 0.00 0 0 13 0 0.0 0 0
July 10 2.40 6.48 28 6.48 28 0.00 0 0 8 0 0.0 0 0
Aug 10 2.39 3.10 29 3.10 29 0.00 0 0 7 1 0.0 0 0
Sept 10 2.19 3.12 30 3.12 30 0.00 0 0 11 2 0.0 0 0
Water Year Totals: 20.52" 28.55" 173 days 28.55" 173 0.00" 0 days 0 68 days 4 days 0.0" 0 days 0 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
10/2/2009
10/3/2009
10/4/2009
10/5/2009
10/6/2009
10/7/2009
10/8/2009
10/9/2009
10/10/2009
10/11/2009
10/12/2009
10/13/2009
10/14/2009
10/15/2009
10/16/2009
10/17/2009
10/18/2009
10/19/2009
10/20/2009
10/21/2009
10/22/2009
10/23/2009
10/24/2009
10/25/2009
10/26/2009
10/27/2009
10/28/2009
10/29/2009
10/30/2009
10/31/2009
11/1/2009
11/2/2009
11/3/2009
11/4/2009
11/5/2009
11/6/2009
11/7/2009
11/8/2009
11/9/2009
11/10/2009
11/11/2009
11/12/2009
11/13/2009
11/14/2009
11/15/2009
11/16/2009
11/17/2009
11/18/2009
11/19/2009
11/20/2009
11/21/2009
11/22/2009
11/23/2009
11/24/2009
11/25/2009
11/26/2009
11/27/2009
11/28/2009
11/29/2009
11/30/2009
12/1/2009
12/2/2009
12/3/2009
12/4/2009
12/5/2009
12/6/2009
12/7/2009
12/8/2009
12/9/2009
12/10/2009
12/11/2009
12/12/2009
12/13/2009
12/14/2009
12/15/2009
12/16/2009
12/17/2009
12/18/2009
12/19/2009
12/20/2009
12/21/2009
12/22/2009
12/23/2009
12/24/2009
12/25/2009
12/26/2009
12/27/2009
12/28/2009
12/29/2009
12/30/2009
12/31/2009
Day of YearDaily PrcpMultiday Prcp
1/1/2010
1/2/2010
1/3/2010
1/4/2010
1/5/2010
1/6/2010
1/7/2010
1/8/2010
1/9/2010
1/10/2010
1/11/2010
1/12/2010
1/13/2010
1/14/2010
1/15/2010
1/16/2010
1/17/2010
1/18/2010
1/19/2010
1/20/2010
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
2/5/2010
2/6/2010
2/7/2010
2/8/2010
2/9/2010
2/10/2010
2/11/2010
2/12/2010
2/13/2010
2/14/2010
2/15/2010
2/16/2010
2/17/2010
2/18/2010
2/19/2010
2/20/2010
2/21/2010
2/22/2010
2/23/2010
2/24/2010
2/25/2010
2/26/2010
2/27/2010
2/28/2010
3/1/2010
3/2/2010
3/3/2010
3/4/2010
3/5/2010
3/6/2010
3/7/2010
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 0.03
4/3/2010 0.02
4/4/2010 0.05
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 0.07
4/8/2010 0.00
4/9/2010 0.00
4/10/2010 0.00
4/11/2010
4/12/2010
4/13/2010 0.00
4/14/2010 0.39
4/15/2010 0.00
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.00
4/19/2010 0.00
4/20/2010 0.09
4/21/2010
4/22/2010 0.00
4/23/2010 0.00
4/24/2010 0.94
4/25/2010 0.42
4/26/2010 0.40
4/27/2010 0.39
4/28/2010 0.00
4/29/2010 0.13
4/30/2010 0.02
5/1/2010 0.06
5/2/2010 0.02
5/3/2010 0.00
5/4/2010 0.00
5/5/2010 0.00
5/6/2010 0.12
5/7/2010 0.14
5/8/2010 0.04
5/9/2010 0.04
5/10/2010 0.14
5/11/2010 0.72
5/12/2010 0.03
5/13/2010 0.21
5/14/2010 0.03
5/15/2010 0.00
5/16/2010 T
5/17/2010 0.00
5/18/2010 0.00
5/19/2010 0.00
5/20/2010 0.00
5/21/2010
5/22/2010 0.11
5/23/2010 0.20
5/24/2010 0.12
5/25/2010 1.21
5/26/2010 0.00
5/27/2010 0.00
5/28/2010 0.00
5/29/2010 0.00
5/30/2010 1.72
5/31/2010 0.02
6/1/2010 0.52
6/2/2010 0.00
6/3/2010 0.00
6/4/2010 0.00
6/5/2010 0.34
6/6/2010 0.20
6/7/2010 0.00
6/8/2010 0.16
6/9/2010 0.00
6/10/2010 0.23
6/11/2010 1.08
6/12/2010 1.52
6/13/2010 0.06
6/14/2010 0.29
6/15/2010 0.24
6/16/2010 0.00
6/17/2010 0.00
6/18/2010 0.00
6/19/2010 0.00
6/20/2010 0.00
6/21/2010 2.15
6/22/2010 0.00
6/23/2010 1.12
6/24/2010 0.00
6/25/2010 0.00
6/26/2010 0.00
6/27/2010 0.06
6/28/2010 0.00
6/29/2010 0.00
6/30/2010 0.00
Day of YearDaily PrcpMultiday Prcp
7/1/2010
7/2/2010 0.00
7/3/2010 0.00
7/4/2010 0.42
7/5/2010 0.00
7/6/2010 0.00
7/7/2010 2.06
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.00
7/11/2010 0.45
7/12/2010 0.04
7/13/2010 0.00
7/14/2010 0.00
7/15/2010 0.00
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.43
7/20/2010
7/21/2010
7/22/2010 2.41
7/23/2010 0.00
7/24/2010 0.57
7/25/2010 0.00
7/26/2010 0.00
7/27/2010 0.00
7/28/2010 0.00
7/29/2010 0.00
7/30/2010 0.10
7/31/2010 0.00
8/1/2010 0.00
8/2/2010 0.00
8/3/2010 T
8/4/2010 1.88
8/5/2010 0.00
8/6/2010 0.02
8/7/2010 0.00
8/8/2010 0.00
8/9/2010
8/10/2010 0.15
8/11/2010 0.00
8/12/2010 0.05
8/13/2010 0.06
8/14/2010 0.00
8/15/2010 0.00
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.00
8/19/2010 0.00
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.00
8/24/2010 0.04
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010 0.00
8/29/2010
8/30/2010 0.00
8/31/2010 0.90
9/1/2010 0.00
9/2/2010 T
9/3/2010 0.01
9/4/2010 0.00
9/5/2010 0.00
9/6/2010 0.00
9/7/2010 0.23
9/8/2010 0.00
9/9/2010 0.05
9/10/2010 0.49
9/11/2010 0.02
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.00
9/15/2010 1.80
9/16/2010 0.04
9/17/2010 0.00
9/18/2010 0.00
9/19/2010 T
9/20/2010 0.00
9/21/2010 0.00
9/22/2010 0.02
9/23/2010 0.21
9/24/2010 0.17
9/25/2010 0.08
9/26/2010 0.00
9/27/2010 0.00
9/28/2010 0.00
9/29/2010 0.00
9/30/2010 0.00



Observation Date Observation Time Precipitation Snowfall Snowfall SWE Snow Depth Snow SWE Notes
4/2/2010 7:00 AM 0.03 M M M M
4/3/2010 7:00 AM 0.02 M M M M Minimum Temperature 23.2 at 7:06 AM
4/4/2010 7:00 AM 0.05 M M M M
4/5/2010 7:00 AM 0.00 0.0 M M M Minimun Temperayure 26.6 at 3:41AM
4/6/2010 7:00 AM 0.00 0.0 M M M
4/7/2010 7:00 AM 0.07 M M M M
4/8/2010 7:00 AM 0.00 0.0 M M M Minimum temperature 20.8 6:32 AM
4/9/2010 7:00 AM 0.00 0.0 M M M
4/10/2010 7:00 AM 0.00 0.0 M M M
4/13/2010 7:00 AM 0.00 0.0 M M M
4/14/2010 7:00 AM 0.39 M M M M
4/15/2010 7:00 AM 0.00 0.0 M M M
4/16/2010 7:00 AM 0.00 0.0 M M M
4/17/2010 7:00 AM 0.00 0.0 M M M Mininmun Temperature 25.7 at 6:56 AM
4/18/2010 7:00 AM 0.00 0.0 M M M
4/19/2010 7:00 AM 0.00 0.0 M M M
4/20/2010 7:00 AM 0.09 M M M M
4/22/2010 7:00 AM 0.00 0.0 M M M
4/23/2010 7:00 AM 0.00 0.0 M M M
4/24/2010 7:00 AM 0.94 0.0 M M M
4/25/2010 7:00 AM 0.42 M M M M
4/26/2010 7:00 AM 0.40 M M M M
4/27/2010 7:00 AM 0.39 M M M M
4/28/2010 7:00 AM 0.00 0.0 M M M
4/29/2010 7:00 AM 0.13 M M M M
4/30/2010 7:00 AM 0.02 M M M M
5/1/2010 7:00 AM 0.06 M M M M
5/2/2010 7:00 AM 0.02 M M M M
5/3/2010 7:00 AM 0.00 0.0 M M M
5/4/2010 7:00 AM 0.00 0.0 M M M
5/5/2010 7:00 AM 0.00 0.0 M M M
5/6/2010 7:00 AM 0.12 M M M M
5/7/2010 7:00 AM 0.14 M M M M
5/8/2010 7:00 AM 0.04 M M M M We had 8 hours of below freezing temperature with a low temperature of 27.1°. 27.5 at 7:00 AM
5/9/2010 7:00 AM 0.04 M M M M It has just started to rain with very heavy overcast clouds.
5/10/2010 7:00 AM 0.14 M M M M
5/11/2010 7:00 AM 0.72 M M M M
5/12/2010 7:00 AM 0.03 M M M M
5/13/2010 7:00 AM 0.21 M M M M
5/14/2010 7:00 AM 0.03 M M M M
5/15/2010 7:00 AM 0.00 0.0 M M M
5/16/2010 7:00 AM T M M M M
5/17/2010 7:00 AM 0.00 0.0 M M M
5/18/2010 7:00 AM 0.00 0.0 M M M
5/19/2010 7:00 AM 0.00 0.0 M M M
5/20/2010 7:00 AM 0.00 0.0 M M M
5/22/2010 7:00 AM 0.11 M M M M
5/23/2010 7:00 AM 0.20 M M M M
5/24/2010 7:00 AM 0.12 M M M M
5/25/2010 7:00 AM 1.21 M M M M
5/26/2010 7:00 AM 0.00 0.0 M M M
5/27/2010 7:00 AM 0.00 0.0 M M M
5/28/2010 7:00 AM 0.00 0.0 M M M
5/29/2010 7:00 AM 0.00 0.0 M M M
5/30/2010 7:00 AM 1.72 M M M M
5/31/2010 7:00 AM 0.02 M M M M
6/1/2010 7:00 AM 0.52 M M M M We had some hail with the rain most of it was a dime size boat with some larger stones. Small amount of leaves on ground. Very little wind with this storm. Do not have a hail pad.
6/2/2010 7:00 AM 0.00 0.0 M M M
6/3/2010 7:00 AM 0.00 0.0 M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM 0.34 M M M M The rain came in the last 40 minutes.
6/6/2010 7:00 AM 0.20 M M M M
6/7/2010 7:00 AM 0.00 0.0 M M M
6/8/2010 7:00 AM 0.16 M M M M
6/9/2010 7:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.23 M M M M Started raining here at 5:00 AM and is still raining lightly.
6/11/2010 7:00 AM 1.08 M M M M
6/12/2010 7:00 AM 1.52 M M M M
6/13/2010 7:00 AM 0.06 M M M M
6/14/2010 7:00 AM 0.29 M M M M
6/15/2010 7:00 AM 0.24 M M M M It sprinkled all day long yesterday.
6/16/2010 7:00 AM 0.00 0.0 M M M
6/17/2010 7:00 AM 0.00 0.0 M M M
6/18/2010 7:00 AM 0.00 0.0 M M M
6/19/2010 7:00 AM 0.00 0.0 M M M
6/20/2010 7:00 AM 0.00 0.0 M M M
6/21/2010 7:00 AM 2.15 M M M M
6/22/2010 7:00 AM 0.00 0.0 M M M
6/23/2010 7:00 AM 1.12 M M M M
6/24/2010 7:00 AM 0.00 0.0 M M M
6/25/2010 7:00 AM 0.00 0.0 M M M
6/26/2010 7:00 AM 0.00 0.0 M M M
6/27/2010 7:00 AM 0.06 M M M M
6/28/2010 7:00 AM 0.00 0.0 M M M
6/29/2010 7:00 AM 0.00 0.0 M M M
6/30/2010 7:00 AM 0.00 0.0 M M M
7/2/2010 7:00 AM 0.00 0.0 M M M
7/3/2010 7:00 AM 0.00 0.0 M M M
7/4/2010 7:00 AM 0.42 M M M M
7/5/2010 7:00 AM 0.00 0.0 M M M
7/6/2010 7:00 AM 0.00 0.0 M M M
7/7/2010 7:00 AM 2.06 M M M M
7/8/2010 7:00 AM 0.00 0.0 M M M
7/9/2010 7:00 AM 0.00 0.0 M M M
7/10/2010 7:00 AM 0.00 0.0 M M M
7/11/2010 7:00 AM 0.45 M M M M
7/12/2010 7:00 AM 0.04 M M M M
7/13/2010 7:00 AM 0.00 0.0 M M M
7/14/2010 7:00 AM 0.00 0.0 M M M
7/15/2010 7:00 AM 0.00 0.0 M M M
7/16/2010 7:00 AM 0.00 0.0 M M M
7/17/2010 7:00 AM 0.00 0.0 M M M
7/18/2010 7:00 AM 0.00 0.0 M M M
7/19/2010 7:00 AM 0.43 M M M M
7/22/2010 7:00 AM 2.41 M M M M 1.21 yester day afternoon and 1.20 early morning today
7/23/2010 7:00 AM 0.00 0.0 M M M
7/24/2010 7:00 AM 0.57 M M M M
7/25/2010 7:00 AM 0.00 0.0 M M M
7/26/2010 7:00 AM 0.00 0.0 M M M
7/27/2010 7:00 AM 0.00 0.0 M M M
7/28/2010 7:00 AM 0.00 0.0 M M M
7/29/2010 7:00 AM 0.00 0.0 M M M
7/30/2010 7:00 AM 0.10 M M M M
7/31/2010 7:00 AM 0.00 0.0 M M M
8/1/2010 7:00 AM 0.00 0.0 M M M
8/2/2010 7:00 AM 0.00 0.0 M M M
8/3/2010 7:00 AM T M M M M Dense Fog Less then 1/4 mile visiblity
8/4/2010 7:00 AM 1.88 M M M M
8/5/2010 7:00 AM 0.00 0.0 M M M
8/6/2010 7:00 AM 0.02 M M M M THIS RAIN CAME YESTERDAY AT 8:55 AM
8/7/2010 7:00 AM 0.00 0.0 M M M
8/8/2010 7:00 AM 0.00 0.0 M M M
8/10/2010 7:00 AM 0.15 M M M M
8/11/2010 7:00 AM 0.00 0.0 M M M
8/12/2010 7:00 AM 0.05 M M M M
8/13/2010 7:00 AM 0.06 M M M M
8/14/2010 7:00 AM 0.00 0.0 M M M
8/15/2010 7:00 AM 0.00 0.0 M M M
8/16/2010 7:00 AM 0.00 0.0 M M M
8/17/2010 7:00 AM 0.00 0.0 M M M
8/18/2010 7:00 AM 0.00 0.0 M M M
8/19/2010 7:00 AM 0.00 0.0 M M M
8/20/2010 7:00 AM 0.00 0.0 M M M
8/21/2010 7:00 AM 0.00 0.0 M M M
8/22/2010 7:00 AM 0.00 0.0 M M M
8/23/2010 7:00 AM 0.00 0.0 M M M
8/24/2010 7:00 AM 0.04 M M M M
8/25/2010 7:00 AM 0.00 0.0 M M M A low of 43.2
8/26/2010 7:00 AM 0.00 0.0 M M M
8/27/2010 7:00 AM 0.00 0.0 M M M
8/28/2010 7:00 AM 0.00 0.0 M M M
8/30/2010 7:00 AM 0.00 0.0 M M M
8/31/2010 7:00 AM 0.90 0.0 M M M
9/1/2010 7:00 AM 0.00 0.0 M M M
9/2/2010 7:00 AM T M M M M
9/3/2010 7:00 AM 0.01 M M M M
9/4/2010 7:00 AM 0.00 0.0 M M M
9/5/2010 7:00 AM 0.00 0.0 M M M
9/6/2010 7:00 AM 0.00 0.0 M M M
9/7/2010 7:00 AM 0.23 M M M M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 7:00 AM 0.05 M M M M
9/10/2010 7:00 AM 0.49 M M M M
9/11/2010 7:00 AM 0.02 M M M M
9/12/2010 7:00 AM 0.00 0.0 M M M
9/13/2010 7:00 AM 0.00 0.0 M M M
9/14/2010 7:00 AM 0.00 0.0 M M M
9/15/2010 7:00 AM 1.80 M M M M
9/16/2010 7:00 AM 0.04 M M M M
9/17/2010 7:00 AM 0.00 0.0 M M M
9/18/2010 7:00 AM 0.00 0.0 M M M
9/19/2010 7:00 AM T M M M M
9/20/2010 7:00 AM 0.00 0.0 M M M
9/21/2010 7:00 AM 0.00 0.0 M M M
9/22/2010 7:00 AM 0.02 M M M M
9/23/2010 7:00 AM 0.21 M M M M
9/24/2010 7:00 AM 0.17 M M M M
9/25/2010 7:00 AM 0.08 M M M M
9/26/2010 7:00 AM 0.00 0.0 M M M
9/27/2010 7:00 AM 0.00 0.0 M M M
9/28/2010 7:00 AM 0.00 0.0 M M M
9/29/2010 7:00 AM 0.00 0.0 M M M
9/30/2010 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



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