Viewing Station: CT-NL-74 : Colchester 5.5 NNE
Apr 20, 2023 - May 18, 20261,071 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.51"
May 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
2.17"
Departure from Normal
0.34" : 116% of Normal
Year-To-Date: 15.55"
Jan 1 to May 18, 2026(138 of 138 days covered by obs)
NOAA Normal
17.35"
Departure from Normal
-1.80" : 90% of Normal
Water Year-To-Date: 27.15"
Oct 1, 2025 to May 18, 2026(230 of 230 days covered by obs)
NOAA Normal
30.53"
Departure from Normal
-3.38" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.67
3.87
-0.20
Feb
2.94
3.33
-0.39
Mar
4.30
4.57
-0.27
Apr
4.27
4.54
-0.27
May
3.74
3.69
0.05
Jun
4.32
4.27
0.05
Jul
3.74
3.84
-0.10
Aug
4.16
4.19
-0.03
Sep
4.33
4.52
-0.19
Oct
4.71
4.70
0.01
Nov
4.02
4.05
-0.03
Dec
4.45
4.82
-0.37
48.65
50.39
-1.74