Viewing Station: MT-YS-41 : Billings 1.7 W
Aug 1, 2020 - May 18, 20262,085 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.10"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
1.42"
Departure from Normal
-1.32" : 7% of Normal
Year-To-Date: 2.78"
Jan 1 to May 18, 2026(137 of 138 days covered by obs)
NOAA Normal
5.18"
Departure from Normal
-2.40" : 54% of Normal
Water Year-To-Date: 7.48"
Oct 1, 2025 to May 18, 2026(226 of 230 days covered by obs)
NOAA Normal
7.79"
Departure from Normal
-0.31" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.57
0.48
0.09
Feb
0.56
0.54
0.02
Mar
0.93
0.94
-0.01
Apr
1.70
1.79
-0.09
May
2.45
2.38
0.07
Jun
2.26
2.18
0.08
Jul
1.25
1.23
0.02
Aug
0.90
0.82
0.08
Sep
1.32
1.38
-0.06
Oct
1.40
1.46
-0.06
Nov
0.62
0.57
0.05
Dec
0.59
0.58
0.01
14.55
14.35
0.20