Viewing Station: MT-LC-14 : Helena 2.0 NNW
Jun 15, 2013 - Oct 14, 20254,816 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 1.31"
October 1-15, 2025(14 of 15 days covered by obs)
NOAA Normal
0.48"
Departure from Normal
0.83" : 273% of Normal
Year-To-Date: 12.54"
Jan 1 to Oct 15, 2025(285 of 288 days covered by obs)
NOAA Normal
11.31"
Departure from Normal
1.23" : 111% of Normal
Water Year-To-Date: 1.31"
Oct 1, 2025 to Oct 15, 2025(14 of 15 days covered by obs)
NOAA Normal
0.48"
Departure from Normal
0.83" : 273% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.39
0.45
-0.06
Feb
0.46
0.47
-0.01
Mar
0.73
0.56
0.17
Apr
1.36
1.05
0.31
May
2.10
1.89
0.21
Jun
2.39
2.25
0.14
Jul
1.17
1.10
0.07
Aug
1.08
1.10
-0.02
Sep
1.15
1.00
0.15
Oct
0.99
0.89
0.10
Nov
0.69
0.58
0.11
Dec
0.49
0.49
0.00
13.00
11.83
1.17