Viewing Station: MT-GN-21 : Big Sky 1.7 NW
Sep 2, 2022 - Oct 20, 20251,075 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.35"
October 1-21, 2025(19 of 21 days covered by obs)
NOAA Normal
1.56"
Departure from Normal
0.79" : 151% of Normal
Year-To-Date: 17.91"
Jan 1 to Oct 21, 2025(285 of 294 days covered by obs)
NOAA Normal
22.00"
Departure from Normal
-4.09" : 81% of Normal
Water Year-To-Date: 2.35"
Oct 1, 2025 to Oct 21, 2025(19 of 21 days covered by obs)
NOAA Normal
1.56"
Departure from Normal
0.79" : 151% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.01
1.68
0.33
Feb
1.92
1.40
0.52
Mar
2.17
1.56
0.61
Apr
2.88
1.97
0.91
May
3.21
2.86
0.35
Jun
3.11
3.06
0.05
Jul
1.65
1.48
0.17
Aug
1.61
1.61
0.00
Sep
1.88
1.60
0.28
Oct
2.30
1.97
0.33
Nov
2.04
1.71
0.33
Dec
2.14
1.87
0.27
26.92
22.77
4.15