Viewing Station: MT-SN-1 : Arlee 16.7 WNW
Jan 1, 2007 - May 18, 20265,760 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.37"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
0.95"
Departure from Normal
-0.58" : 39% of Normal
Year-To-Date: 5.32"
Jan 1 to May 18, 2026(138 of 138 days covered by obs)
NOAA Normal
4.66"
Departure from Normal
0.66" : 114% of Normal
Water Year-To-Date: 10.72"
Oct 1, 2025 to May 18, 2026(230 of 230 days covered by obs)
NOAA Normal
8.02"
Departure from Normal
2.70" : 134% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.78
1.44
-0.66
Feb
0.90
1.17
-0.27
Mar
0.93
1.32
-0.39
Apr
1.10
1.35
-0.25
May
1.64
2.06
-0.42
Jun
2.03
2.09
-0.06
Jul
0.79
0.76
0.03
Aug
0.86
0.68
0.18
Sep
0.99
0.98
0.01
Oct
1.20
1.38
-0.18
Nov
1.15
1.39
-0.24
Dec
1.01
1.42
-0.41
13.38
16.04
-2.66