Viewing Station: MA-MD-25 : Ayer 0.1 SW
Mar 12, 2012 - May 11, 20264,321 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.19"
May 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.31"
Departure from Normal
-0.12" : 91% of Normal
Year-To-Date: 10.99"
Jan 1 to May 11, 2026(131 of 131 days covered by obs)
NOAA Normal
16.23"
Departure from Normal
-5.24" : 68% of Normal
Water Year-To-Date: 20.39"
Oct 1, 2025 to May 11, 2026(225 of 223 days covered by obs)
NOAA Normal
28.94"
Departure from Normal
-8.55" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.41
-0.02
Feb
3.21
3.25
-0.04
Mar
4.13
4.15
-0.02
Apr
4.19
3.96
0.23
May
3.68
3.47
0.21
Jun
4.15
4.08
0.07
Jul
3.66
3.63
0.03
Aug
3.58
3.71
-0.13
Sep
3.99
3.76
0.23
Oct
4.67
4.75
-0.08
Nov
3.71
3.63
0.08
Dec
4.33
4.44
-0.11
46.69
46.24
0.45