Viewing Station: MT-LY-4 : Chester 10.5 S
Sep 4, 2021 - May 18, 20261,705 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.37"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
0.95"
Departure from Normal
-0.58" : 39% of Normal
Year-To-Date: 1.33"
Jan 1 to May 18, 2026(138 of 138 days covered by obs)
NOAA Normal
2.97"
Departure from Normal
-1.64" : 45% of Normal
Water Year-To-Date: 2.85"
Oct 1, 2025 to May 18, 2026(230 of 230 days covered by obs)
NOAA Normal
4.50"
Departure from Normal
-1.65" : 63% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.38
0.39
-0.01
Feb
0.29
0.31
-0.02
Mar
0.40
0.40
0.00
Apr
0.95
0.96
-0.01
May
1.63
1.58
0.05
Jun
2.44
2.55
-0.11
Jul
1.00
1.11
-0.11
Aug
1.02
1.04
-0.02
Sep
0.96
0.97
-0.01
Oct
0.72
0.69
0.03
Nov
0.47
0.50
-0.03
Dec
0.34
0.36
-0.02
10.60
10.86
-0.26