Viewing Station: CO-PH-28 : Holyoke 5.7 NW
May 10, 2004 - May 31, 20261,215 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.86"
May 1-31, 2026(11 of 31 days covered by obs)
NOAA Normal
2.78"
Departure from Normal
0.08" : 103% of Normal
Year-To-Date: 3.53"
Jan 1 to May 31, 2026(17 of 151 days covered by obs)
NOAA Normal
6.22"
Departure from Normal
-2.69" : 57% of Normal
Water Year-To-Date: 4.18"
Oct 1, 2025 to May 31, 2026(22 of 243 days covered by obs)
NOAA Normal
8.33"
Departure from Normal
-4.15" : 50% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.29
0.31
-0.02
Feb
0.44
0.48
-0.04
Mar
0.84
0.86
-0.02
Apr
1.87
1.87
0.00
May
2.78
2.84
-0.06
Jun
2.79
2.82
-0.03
Jul
2.69
2.70
-0.01
Aug
2.33
2.35
-0.02
Sep
1.38
1.35
0.03
Oct
1.26
1.21
0.05
Nov
0.48
0.49
-0.01
Dec
0.37
0.41
-0.04
17.52
17.69
-0.17