Viewing Station: ceda002 : St. Helena 4.1 SW
Jul 24, 2006 - Dec 7, 20256,759 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.21"
December 1-8, 2025(7 of 8 days covered by obs)
NOAA Normal
0.22"
Departure from Normal
-0.01" : 94% of Normal
Year-To-Date: 26.28"
Jan 1 to Dec 8, 2025(341 of 342 days covered by obs)
NOAA Normal
27.61"
Departure from Normal
-1.33" : 95% of Normal
Water Year-To-Date: 2.15"
Oct 1, 2025 to Dec 8, 2025(68 of 69 days covered by obs)
NOAA Normal
3.93"
Departure from Normal
-1.78" : 55% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.60
0.57
0.03
Feb
0.83
0.79
0.04
Mar
1.54
1.49
0.05
Apr
3.21
3.13
0.08
May
3.87
3.89
-0.02
Jun
4.18
4.20
-0.02
Jul
3.26
3.19
0.07
Aug
3.26
3.24
0.02
Sep
2.93
2.87
0.06
Oct
2.47
2.48
-0.01
Nov
1.24
1.19
0.05
Dec
0.87
0.82
0.05
28.26
27.86
0.40