Viewing Station: MT-MD-13 : West Yellowstone 25.2 NW
May 1, 2022 - Sep 16, 2025613 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.17"
September 1-18, 2025(16 of 18 days covered by obs)
NOAA Normal
0.76"
Departure from Normal
-0.59" : 22% of Normal
Year-To-Date: 7.55"
Jan 1 to Sep 18, 2025(129 of 261 days covered by obs)
NOAA Normal
15.70"
Departure from Normal
-8.15" : 48% of Normal
Water Year-To-Date: 8.01"
Oct 1, 2024 to Sep 18, 2025(140 of 353 days covered by obs)
NOAA Normal
21.14"
Departure from Normal
-13.13" : 38% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.81
2.48
-0.67
Feb
1.60
2.27
-0.67
Mar
1.73
2.24
-0.51
Apr
2.07
2.23
-0.16
May
2.66
2.77
-0.11
Jun
2.57
2.44
0.13
Jul
1.34
1.24
0.10
Aug
1.16
1.11
0.05
Sep
1.26
1.29
-0.03
Oct
1.70
1.78
-0.08
Nov
1.73
2.13
-0.40
Dec
2.01
2.69
-0.68
21.64
24.67
-3.03