Viewing Station: CT-NL-70 : Colchester 0.6 ENE
Mar 31, 2021 - May 18, 20261,650 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.51"
May 1-18, 2026(17 of 18 days covered by obs)
NOAA Normal
2.18"
Departure from Normal
0.33" : 115% of Normal
Year-To-Date: 15.02"
Jan 1 to May 18, 2026(135 of 138 days covered by obs)
NOAA Normal
17.45"
Departure from Normal
-2.43" : 86% of Normal
Water Year-To-Date: 28.94"
Oct 1, 2025 to May 18, 2026(214 of 230 days covered by obs)
NOAA Normal
30.78"
Departure from Normal
-1.84" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.72
4.02
-0.30
Feb
2.94
3.39
-0.45
Mar
4.29
4.60
-0.31
Apr
4.32
4.69
-0.37
May
3.76
3.84
-0.08
Jun
4.26
4.19
0.07
Jul
3.62
3.84
-0.22
Aug
4.09
4.26
-0.17
Sep
4.37
4.77
-0.40
Oct
4.79
4.69
0.10
Nov
4.09
4.09
0.00
Dec
4.45
4.92
-0.47
48.70
51.30
-2.60