Viewing Station: MT-SW-13 : Columbus 6.0 SSE
May 1, 2015 - May 18, 20263,848 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.26"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
1.50"
Departure from Normal
-1.24" : 17% of Normal
Year-To-Date: 2.17"
Jan 1 to May 18, 2026(136 of 138 days covered by obs)
NOAA Normal
5.45"
Departure from Normal
-3.28" : 40% of Normal
Water Year-To-Date: 5.42"
Oct 1, 2025 to May 18, 2026(224 of 230 days covered by obs)
NOAA Normal
8.23"
Departure from Normal
-2.81" : 66% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.60
0.56
0.04
Feb
0.62
0.76
-0.14
Mar
0.91
1.07
-0.16
Apr
1.82
2.11
-0.29
May
2.58
3.39
-0.81
Jun
2.14
2.45
-0.31
Jul
1.17
1.29
-0.12
Aug
0.94
1.02
-0.08
Sep
1.34
1.37
-0.03
Oct
1.44
1.69
-0.25
Nov
0.71
0.77
-0.06
Dec
0.63
0.70
-0.07
14.90
17.18
-2.28