Viewing Station: AL-SH-67 : Helena 1.2 SE
Sep 6, 2019 - Jun 21, 20251,600 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.97"
June 1-22, 2025(20 of 22 days covered by obs)
NOAA Normal
3.36"
Departure from Normal
1.61" : 148% of Normal
Year-To-Date: 35.43"
Jan 1 to Jun 22, 2025(156 of 173 days covered by obs)
NOAA Normal
28.44"
Departure from Normal
6.99" : 125% of Normal
Water Year-To-Date: 44.03"
Oct 1, 2024 to Jun 22, 2025(238 of 265 days covered by obs)
NOAA Normal
41.36"
Departure from Normal
2.67" : 106% 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