Viewing Station: MT-SN-5 : Plains 5.2 N
Nov 1, 2017 - Oct 20, 20252,745 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.56"
October 1-21, 2025(20 of 21 days covered by obs)
NOAA Normal
1.00"
Departure from Normal
0.56" : 157% of Normal
Year-To-Date: 11.19"
Jan 1 to Oct 21, 2025(285 of 294 days covered by obs)
NOAA Normal
11.94"
Departure from Normal
-0.75" : 94% of Normal
Water Year-To-Date: 1.56"
Oct 1, 2025 to Oct 21, 2025(20 of 21 days covered by obs)
NOAA Normal
1.00"
Departure from Normal
0.56" : 157% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.33
1.51
-0.18
Feb
1.28
1.36
-0.08
Mar
1.21
1.30
-0.09
Apr
1.22
1.40
-0.18
May
1.61
1.59
0.02
Jun
1.80
1.91
-0.11
Jul
0.77
0.77
0.00
Aug
0.75
0.72
0.03
Sep
0.97
0.85
0.12
Oct
1.47
1.62
-0.15
Nov
1.53
1.70
-0.17
Dec
1.59
1.44
0.15
15.53
16.17
-0.64