Viewing Station: AL-SH-67 : Helena 1.2 SE
Sep 6, 2019 - May 8, 20251,558 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.11"
May 1-8, 2025(8 of 8 days covered by obs)
NOAA Normal
1.07"
Departure from Normal
3.04" : 385% of Normal
Year-To-Date: 21.42"
Jan 1 to May 8, 2025(114 of 128 days covered by obs)
NOAA Normal
22.01"
Departure from Normal
-0.59" : 97% of Normal
Water Year-To-Date: 30.02"
Oct 1, 2024 to May 8, 2025(196 of 220 days covered by obs)
NOAA Normal
34.93"
Departure from Normal
-4.91" : 86% 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