Viewing Station: MA-MD-105 : Littleton 0.9 WSW
Aug 1, 2017 - May 11, 20263,095 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.09"
May 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.30"
Departure from Normal
-0.21" : 84% of Normal
Year-To-Date: 10.09"
Jan 1 to May 11, 2026(124 of 131 days covered by obs)
NOAA Normal
16.00"
Departure from Normal
-5.91" : 63% of Normal
Water Year-To-Date: 19.10"
Oct 1, 2025 to May 11, 2026(214 of 223 days covered by obs)
NOAA Normal
28.68"
Departure from Normal
-9.58" : 67% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.39
3.52
-0.13
Feb
3.15
3.31
-0.16
Mar
4.11
4.29
-0.18
Apr
4.05
4.10
-0.05
May
3.65
3.56
0.09
Jun
4.16
4.13
0.03
Jul
3.59
3.71
-0.12
Aug
3.74
3.83
-0.09
Sep
3.84
3.81
0.03
Oct
4.66
4.78
-0.12
Nov
3.77
3.72
0.05
Dec
4.25
4.55
-0.30
46.36
47.31
-0.95