Viewing Station: MT-YS-27 : Billings 3.2 NNE
Jul 4, 2014 - Sep 18, 20253,748 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.61"
September 1-18, 2025(18 of 18 days covered by obs)
NOAA Normal
0.74"
Departure from Normal
0.87" : 216% of Normal
Year-To-Date: 15.03"
Jan 1 to Sep 18, 2025(255 of 261 days covered by obs)
NOAA Normal
10.97"
Departure from Normal
4.06" : 137% of Normal
Water Year-To-Date: 16.50"
Oct 1, 2024 to Sep 18, 2025(347 of 353 days covered by obs)
NOAA Normal
13.40"
Departure from Normal
3.10" : 123% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.51
0.51
0.00
Feb
0.51
0.52
-0.01
Mar
0.86
0.91
-0.05
Apr
1.60
1.79
-0.19
May
2.38
2.37
0.01
Jun
2.25
2.09
0.16
Jul
1.23
1.19
0.04
Aug
0.89
0.85
0.04
Sep
1.24
1.37
-0.13
Oct
1.31
1.45
-0.14
Nov
0.59
0.55
0.04
Dec
0.53
0.57
-0.04
13.90
14.17
-0.27