Station Overview Station Location
Station Number MT-CC-4 Latitude 47.48371
Station Name Great Falls 2.4 SW Longitude -111.33101
County Cascade Elevation (ft) 3357



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 0.84 0.81 15 0.03 1 0.78 14 1 1 0 0.0 0 0
Nov 09 0.63 1.00 30 0.00 26 1.00 4 1 0 1 0.0 0 0
Dec 09 0.55 0.58 14 0.05 7 0.53 7 2 1 0 1.0 1 1
Jan 10 0.50 0.48 3 0.00 0 0.48 3 1 0 0 0.0 0 0
Feb 10 0.49 0.00 0 0.00 0 0.00 0 0 0 0 0.0 0 0
March 10 0.94 0.13 24 0.13 24 0.00 0 0 3 0 0.9 1 0
April 10 1.33 2.46 29 2.46 29 0.00 0 0 9 3 10.0 3 3
May 10 2.20 2.48 27 2.48 27 0.00 0 0 16 5 2.5 2 2
June 10 2.37 3.88 30 0.73 15 3.15 15 1 8 1 0.0 0 0
July 10 1.48 1.01 31 0.50 26 0.51 5 1 5 3 0.0 0 0
Aug 10 1.38 2.33 30 1.33 21 1.00 9 1 7 0 0.0 0 0
Sept 10 1.50 1.46 31 1.06 27 0.40 4 1 11 1 0.5 1 0
Water Year Totals: 14.21" 16.62" 264 days 8.77" 203 7.85" 61 days 9 61 days 14 days 14.9" 8 days 6 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 0.78
10/2/2009
10/3/2009
10/4/2009 0.03
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 1.00
11/5/2009 0.00
11/6/2009 0.00
11/7/2009 0.00
11/8/2009 0.00
11/9/2009 0.00
11/10/2009 0.00
11/11/2009 0.00
11/12/2009 T
11/13/2009 0.00
11/14/2009 0.00
11/15/2009 0.00
11/16/2009 0.00
11/17/2009 0.00
11/18/2009 0.00
11/19/2009 0.00
11/20/2009 0.00
11/21/2009 0.00
11/22/2009 0.00
11/23/2009 0.00
11/24/2009 0.00
11/25/2009 0.00
11/26/2009 0.00
11/27/2009 0.00
11/28/2009 0.00
11/29/2009 0.00
11/30/2009 0.00
12/1/2009 0.05
12/2/2009 0.00
12/3/2009 0.00
12/4/2009 0.00
12/5/2009 **
12/6/2009 **
12/7/2009 0.31
12/8/2009 0.00
12/9/2009 0.00
12/10/2009 0.00
12/11/2009 **
12/12/2009 **
12/13/2009 **
12/14/2009 0.22
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 0.48
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 0.00
3/9/2010 0.00
3/10/2010 0.00
3/11/2010 0.00
3/12/2010 0.00
3/13/2010 0.00
3/14/2010 0.00
3/15/2010 0.00
3/16/2010 0.00
3/17/2010 0.00
3/18/2010 0.09
3/19/2010 0.00
3/20/2010 0.00
3/21/2010 0.00
3/22/2010 0.00
3/23/2010 0.01
3/24/2010 0.00
3/25/2010 0.00
3/26/2010 0.00
3/27/2010 0.00
3/28/2010 0.00
3/29/2010 0.00
3/30/2010 0.03
3/31/2010 0.00
Day of YearDaily PrcpMultiday Prcp
4/1/2010 0.00
4/2/2010 0.00
4/3/2010 0.00
4/4/2010 0.00
4/5/2010 0.00
4/6/2010 0.00
4/7/2010 T
4/8/2010 0.00
4/9/2010 T
4/10/2010 0.00
4/11/2010 0.00
4/12/2010 0.03
4/13/2010 0.02
4/14/2010 0.85
4/15/2010 0.25
4/16/2010 0.00
4/17/2010 0.00
4/18/2010 0.03
4/19/2010 0.00
4/20/2010 0.00
4/21/2010 0.00
4/22/2010 0.00
4/23/2010 0.12
4/24/2010 0.00
4/25/2010
4/26/2010 0.06
4/27/2010 0.00
4/28/2010 T
4/29/2010 0.45
4/30/2010 0.65
5/1/2010 T
5/2/2010 0.03
5/3/2010 T
5/4/2010 0.02
5/5/2010 0.12
5/6/2010 0.10
5/7/2010 0.01
5/8/2010 0.09
5/9/2010 0.03
5/10/2010 0.01
5/11/2010 0.02
5/12/2010 0.01
5/13/2010 0.00
5/14/2010 0.00
5/15/2010 0.00
5/16/2010 T
5/17/2010 0.00
5/18/2010
5/19/2010
5/20/2010
5/21/2010
5/22/2010 0.17
5/23/2010 0.02
5/24/2010 0.00
5/25/2010 0.29
5/26/2010 0.01
5/27/2010 0.00
5/28/2010 0.23
5/29/2010 1.32
5/30/2010 T
5/31/2010 T
6/1/2010 0.20
6/2/2010 0.19
6/3/2010 0.01
6/4/2010 0.00
6/5/2010 0.00
6/6/2010 T
6/7/2010 0.05
6/8/2010 0.02
6/9/2010 0.00
6/10/2010 0.07
6/11/2010 0.16
6/12/2010 0.00
6/13/2010 0.00
6/14/2010 0.00 **
6/15/2010 **
6/16/2010 **
6/17/2010 **
6/18/2010 **
6/19/2010 **
6/20/2010 **
6/21/2010 **
6/22/2010 **
6/23/2010 **
6/24/2010 **
6/25/2010 **
6/26/2010 **
6/27/2010 **
6/28/2010 3.15
6/29/2010
6/30/2010 0.03
Day of YearDaily PrcpMultiday Prcp
7/1/2010 0.03
7/2/2010 T
7/3/2010 **
7/4/2010 **
7/5/2010 **
7/6/2010 **
7/7/2010 0.51
7/8/2010 0.00
7/9/2010 0.00
7/10/2010 0.00
7/11/2010 0.25
7/12/2010 0.00
7/13/2010 0.00
7/14/2010 0.05
7/15/2010 T
7/16/2010 0.00
7/17/2010 0.00
7/18/2010 0.00
7/19/2010 0.00
7/20/2010 T
7/21/2010 0.00
7/22/2010 0.00
7/23/2010 0.16
7/24/2010 0.01
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 0.00
7/31/2010 0.00
8/1/2010 0.25
8/2/2010 0.00
8/3/2010 0.00
8/4/2010 0.00
8/5/2010 0.00
8/6/2010 **
8/7/2010 **
8/8/2010 **
8/9/2010 **
8/10/2010 **
8/11/2010 **
8/12/2010 **
8/13/2010 **
8/14/2010 1.00
8/15/2010 0.02
8/16/2010 0.00
8/17/2010 0.00
8/18/2010 0.00
8/19/2010 0.07
8/20/2010 0.00
8/21/2010 0.00
8/22/2010 0.00
8/23/2010 0.55
8/24/2010 0.00
8/25/2010 0.00
8/26/2010 0.00
8/27/2010 0.00
8/28/2010
8/29/2010 0.02
8/30/2010 0.15
8/31/2010 0.27
9/1/2010 0.02
9/2/2010 0.00
9/3/2010 0.00
9/4/2010 **
9/5/2010 **
9/6/2010 **
9/7/2010 0.00 0.40
9/8/2010 0.00
9/9/2010 0.16
9/10/2010 0.07
9/11/2010 0.00
9/12/2010 0.00
9/13/2010 0.00
9/14/2010 0.02
9/15/2010 0.05
9/16/2010 0.00
9/17/2010 0.16
9/18/2010 0.26
9/19/2010 0.05
9/20/2010 0.14
9/21/2010 T
9/22/2010 0.12
9/23/2010 0.01
9/24/2010 0.00
9/25/2010 0.00
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
10/4/2009 7:00 AM 0.03 M M M M
11/5/2009 7:00 AM 0.00 0.0 M M M
11/6/2009 7:00 AM 0.00 0.0 M M M
11/7/2009 7:00 AM 0.00 0.0 M M M
11/8/2009 7:00 AM 0.00 0.0 M M M
11/9/2009 7:00 AM 0.00 0.0 M M M
11/10/2009 7:00 AM 0.00 0.0 M M M
11/11/2009 7:00 AM 0.00 0.0 M M M
11/12/2009 8:00 AM T T M T M
11/13/2009 7:00 AM 0.00 0.0 M M M
11/14/2009 7:00 AM 0.00 0.0 M M M
11/15/2009 7:00 AM 0.00 0.0 M M M
11/16/2009 7:00 AM 0.00 0.0 M M M
11/17/2009 7:00 AM 0.00 0.0 M M M
11/18/2009 7:00 AM 0.00 0.0 M M M
11/19/2009 7:00 AM 0.00 0.0 M M M
11/20/2009 7:00 AM 0.00 0.0 M M M
11/21/2009 7:00 AM 0.00 0.0 M M M
11/22/2009 7:00 AM 0.00 0.0 M M M
11/23/2009 7:00 AM 0.00 0.0 M M M
11/24/2009 7:00 AM 0.00 0.0 M M M
11/25/2009 7:00 AM 0.00 0.0 M M M
11/26/2009 7:00 AM 0.00 0.0 M M M
11/27/2009 7:00 AM 0.00 0.0 M M M
11/28/2009 7:00 AM 0.00 0.0 M M M
11/29/2009 7:00 AM 0.00 0.0 M M M
11/30/2009 7:00 AM 0.00 0.0 M M M
12/1/2009 9:00 AM 0.05 1.0 0.05 1.0 0.05
12/2/2009 7:00 AM 0.00 0.0 M M M
12/3/2009 7:00 AM 0.00 0.0 M M M
12/4/2009 7:00 AM 0.00 0.0 M M M
12/8/2009 7:00 AM 0.00 0.0 M M M
12/9/2009 7:00 AM 0.00 0.0 M M M
12/10/2009 7:00 AM 0.00 0.0 M M M
3/8/2010 7:00 AM 0.00 0.0 M M M
3/9/2010 7:00 AM 0.00 0.0 M M M
3/10/2010 7:00 AM 0.00 0.0 M M M
3/11/2010 7:00 AM 0.00 0.0 M M M
3/12/2010 7:00 AM 0.00 0.0 M M M
3/13/2010 7:00 AM 0.00 0.0 M M M
3/14/2010 7:00 AM 0.00 0.0 M M M
3/15/2010 7:00 AM 0.00 0.0 M M M
3/16/2010 7:00 AM 0.00 0.0 M M M
3/17/2010 7:00 AM 0.00 0.0 M M M
3/18/2010 7:00 AM 0.09 0.9 0.09 T M trace of snow on ground
3/19/2010 7:00 AM 0.00 0.0 M M M
3/20/2010 7:00 AM 0.00 0.0 M M M
3/21/2010 7:00 AM 0.00 0.0 M M M
3/22/2010 7:00 AM 0.00 0.0 M M M
3/23/2010 7:00 AM 0.01 M M M M
3/24/2010 7:00 AM 0.00 0.0 M M M
3/25/2010 7:00 AM 0.00 0.0 M M M
3/26/2010 7:00 AM 0.00 0.0 M M M
3/27/2010 7:00 AM 0.00 0.0 M M M
3/28/2010 7:00 AM 0.00 0.0 M M M
3/29/2010 7:00 AM 0.00 0.0 M M M
3/30/2010 8:00 AM 0.03 M M M M
3/31/2010 7:00 AM 0.00 0.0 M M M
4/1/2010 7:00 AM 0.00 0.0 M M M
4/2/2010 7:00 AM 0.00 0.0 M M M
4/3/2010 7:00 AM 0.00 0.0 M M M
4/4/2010 7:00 AM 0.00 0.0 M M M
4/5/2010 7:00 AM 0.00 0.0 M M M
4/6/2010 7:00 AM 0.00 0.0 M M M
4/7/2010 7:00 AM T M M M M
4/8/2010 7:00 AM 0.00 0.0 M M M
4/9/2010 7:00 AM T M M M M
4/10/2010 7:00 AM 0.00 0.0 M M M
4/11/2010 7:00 AM 0.00 0.0 M M M
4/12/2010 7:00 AM 0.03 M M M M
4/13/2010 8:00 AM 0.02 M M M M Mix of snow and light rain this morning
4/14/2010 7:00 AM 0.85 5.5 0.85 5.0 M
4/15/2010 7:00 AM 0.25 4.0 M 5.0 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
4/18/2010 7:00 AM 0.03 M M M M
4/19/2010 7:00 AM 0.00 0.0 M M M
4/20/2010 7:00 AM 0.00 0.0 M M M
4/21/2010 7:00 AM 0.00 0.0 M M M
4/22/2010 7:00 AM 0.00 0.0 M M M
4/23/2010 7:00 AM 0.12 M M M M
4/24/2010 7:00 AM 0.00 0.0 M M M
4/26/2010 7:00 AM 0.06 M M M M
4/27/2010 7:00 AM 0.00 0.0 M M M
4/28/2010 7:00 AM T M M M M
4/29/2010 8:30 AM 0.45 0.5 M 0.5 M Rain turning to snow close to daybreak
4/30/2010 7:00 AM 0.65 M M M M I think this is an undercatch of the precip due to the very strong winds all day yesterday.
5/1/2010 7:00 AM T M M M M
5/2/2010 7:00 AM 0.03 M M M M
5/3/2010 7:00 AM T M M M M
5/4/2010 7:00 AM 0.02 M M M M
5/5/2010 7:00 AM 0.12 1.5 0.12 1.5 0.12
5/6/2010 7:00 AM 0.10 1.0 0.10 0.5 M
5/7/2010 7:00 AM 0.01 M M 0.0 M
5/8/2010 7:00 AM 0.09 M M M M
5/9/2010 7:00 AM 0.03 M M M M
5/10/2010 7:00 AM 0.01 M M M M
5/11/2010 8:00 AM 0.02 M M M M
5/12/2010 7:00 AM 0.01 M M M M
5/13/2010 7:00 AM 0.00 0.0 M M M
5/14/2010 7:00 AM 0.00 0.0 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
5/22/2010 11:00 AM 0.17 M M M M
5/23/2010 7:00 AM 0.02 M M M M
5/24/2010 7:00 AM 0.00 0.0 M M M
5/25/2010 8:15 AM 0.29 M M M M
5/26/2010 7:00 AM 0.01 M M M M
5/27/2010 7:00 AM 0.00 0.0 M M M
5/28/2010 8:40 AM 0.23 M M M M
5/29/2010 8:00 AM 1.32 M M M M
5/30/2010 7:00 AM T M M M M
5/31/2010 7:00 AM T M M M M
6/1/2010 7:00 AM 0.20 M M M M
6/2/2010 7:00 AM 0.19 M M M M Thunderstorm lasted about 30 minutes
6/3/2010 7:00 AM 0.01 M M M M
6/4/2010 7:00 AM 0.00 0.0 M M M
6/5/2010 7:00 AM 0.00 0.0 M M M
6/6/2010 7:00 AM T M M M M
6/7/2010 7:00 AM 0.05 M M M M
6/8/2010 7:00 AM 0.02 M M M M
6/9/2010 7:00 AM 0.00 0.0 M M M
6/10/2010 7:00 AM 0.07 M M M M
6/11/2010 7:00 AM 0.16 M M M M
6/12/2010 7:00 AM 0.00 0.0 M M M
6/13/2010 7:00 AM 0.00 0.0 M M M
6/14/2010 7:00 AM 0.00 0.0 M M M
6/30/2010 8:20 AM 0.03 M M M M
7/1/2010 8:00 AM 0.03 M M M M
7/2/2010 7:00 AM T 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 0.25 M M M M
7/12/2010 7:00 AM 0.00 0.0 M M M
7/13/2010 7:00 AM 0.00 0.0 M M M
7/14/2010 7:00 AM 0.05 M M M M
7/15/2010 7:00 AM T M 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 0.00 0.0 M M M
7/20/2010 7:00 AM T M M M M
7/21/2010 7:00 AM 0.00 0.0 M M M
7/22/2010 7:00 AM 0.00 0.0 M M M
7/23/2010 8:30 AM 0.16 M M M M
7/24/2010 7:00 AM 0.01 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 0.00 0.0 M M M
7/31/2010 7:00 AM 0.00 0.0 M M M
8/1/2010 7:00 AM 0.25 M M M M
8/2/2010 7:00 AM 0.00 0.0 M M M
8/3/2010 7:00 AM 0.00 0.0 M M M
8/4/2010 7:00 AM 0.00 0.0 M M M
8/5/2010 7:00 AM 0.00 0.0 M M M
8/15/2010 7:00 AM 0.02 M M M M
8/16/2010 6:00 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 0.07 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 0.55 M M M M
8/24/2010 7:00 AM 0.00 0.0 M M M
8/25/2010 7:00 AM 0.00 0.0 M M M
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
8/29/2010 7:00 AM 0.02 M M M M
8/30/2010 8:30 AM 0.15 M M M M
8/31/2010 7:00 AM 0.27 M M M M
9/1/2010 7:00 AM 0.02 M M M M
9/2/2010 7:00 AM 0.00 0.0 M M M
9/3/2010 7:00 AM 0.00 0.0 M M M
9/7/2010 7:00 AM 0.00 0.0 M M M
9/8/2010 7:00 AM 0.00 0.0 M M M
9/9/2010 8:00 AM 0.16 M M M M
9/10/2010 8:00 AM 0.07 M M M M
9/11/2010 7:00 AM 0.00 0.0 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 8:00 AM 0.02 M M M M
9/15/2010 7:00 AM 0.05 M M M M
9/16/2010 7:00 AM 0.00 0.0 M M M
9/17/2010 8:00 AM 0.16 M M M M
9/18/2010 7:00 AM 0.26 0.5 M 0.0 M Snow fell for about 5 hours from around 9am to 2pm
9/19/2010 8:00 AM 0.05 M M M M
9/20/2010 8:00 AM 0.14 M M M M Thunderstorms around 320am
9/21/2010 8:00 AM T M M M M
9/22/2010 8:00 AM 0.12 M M M M
9/23/2010 8:00 AM 0.01 M M M M
9/24/2010 7:00 AM 0.00 0.0 M M M
9/25/2010 7:00 AM 0.00 0.0 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
9/30/2009 10/01/2009 12:00 AM 2 0.78 M M
10/19/2009 11/04/2009 5:00 PM 17 1.00 M M
12/5/2009 12/07/2009 8:00 AM 3 0.31 4.0 5.00 Snowfall measurements averaged around 6 inches at its greatest depth
12/11/2009 12/14/2009 8:00 AM 4 0.22 5.0 M
1/4/2010 1/06/2010 8:00 AM 3 0.48 7.0 M
6/14/2010 6/28/2010 2:00 PM 15 3.15 M M
7/3/2010 7/07/2010 8:00 AM 5 0.51 M M
8/6/2010 8/14/2010 7:00 AM 9 1.00 M M
9/4/2010 9/07/2010 8:00 AM 4 0.40 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