Viewing Station: MT-LC-23 : East Helena 0.4 NNE
Apr 27, 2024 - Jun 20, 202536 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.10"
June 1-21, 2025(3 of 21 days covered by obs)
NOAA Normal
1.67"
Departure from Normal
-1.57" : 6% of Normal
Year-To-Date: 2.33"
Jan 1 to Jun 21, 2025(8 of 172 days covered by obs)
NOAA Normal
6.04"
Departure from Normal
-3.71" : 39% of Normal
Water Year-To-Date: 2.33"
Oct 1, 2024 to Jun 21, 2025(8 of 264 days covered by obs)
NOAA Normal
7.70"
Departure from Normal
-5.37" : 30% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.28
0.45
-0.17
Feb
0.35
0.50
-0.15
Mar
0.53
0.56
-0.03
Apr
1.19
1.19
0.00
May
2.02
1.87
0.15
Jun
2.39
2.22
0.17
Jul
1.12
1.14
-0.02
Aug
1.03
1.07
-0.04
Sep
1.06
1.00
0.06
Oct
0.87
0.88
-0.01
Nov
0.44
0.61
-0.17
Dec
0.35
0.46
-0.11
11.63
11.95
-0.32