Viewing Station: MT-LC-4 : Helena 10.6 N
Aug 23, 2007 - Jan 17, 20266,126 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.03"
January 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
0.15"
Departure from Normal
-0.12" : 20% of Normal
Year-To-Date: 0.03"
Jan 1 to Jan 17, 2026(17 of 17 days covered by obs)
NOAA Normal
0.15"
Departure from Normal
-0.12" : 20% of Normal
Water Year-To-Date: 1.38"
Oct 1, 2025 to Jan 17, 2026(108 of 109 days covered by obs)
NOAA Normal
1.66"
Departure from Normal
-0.28" : 83% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.28
0.42
-0.14
Feb
0.33
0.46
-0.13
Mar
0.47
0.54
-0.07
Apr
1.08
1.11
-0.03
May
1.78
1.96
-0.18
Jun
2.26
2.40
-0.14
Jul
1.04
1.06
-0.02
Aug
1.01
0.98
0.03
Sep
0.97
1.04
-0.07
Oct
0.71
0.87
-0.16
Nov
0.43
0.65
-0.22
Dec
0.37
0.47
-0.10
10.73
11.96
-1.23