Viewing Station: AL-SH-67 : Helena 1.2 SE
Sep 6, 2019 - Sep 14, 20251,672 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-15, 2025(9 of 15 days covered by obs)
NOAA Normal
2.00"
Departure from Normal
-2.00" : 0% of Normal
Year-To-Date: 44.01"
Jan 1 to Sep 15, 2025(228 of 258 days covered by obs)
NOAA Normal
40.55"
Departure from Normal
3.46" : 109% of Normal
Water Year-To-Date: 52.61"
Oct 1, 2024 to Sep 15, 2025(310 of 350 days covered by obs)
NOAA Normal
53.47"
Departure from Normal
-0.86" : 98% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.23
5.22
0.01
Feb
5.41
5.38
0.03
Mar
5.34
5.25
0.09
Apr
4.96
5.12
-0.16
May
4.14
4.23
-0.09
Jun
4.58
4.62
-0.04
Jul
4.82
4.46
0.36
Aug
4.07
4.35
-0.28
Sep
3.99
4.08
-0.09
Oct
3.36
3.30
0.06
Nov
4.55
4.46
0.09
Dec
5.01
5.08
-0.07
55.46
55.55
-0.09