Viewing Station: ceda002 : St. Helena 4.1 SW
Jul 24, 2006 - Aug 21, 20267,015 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.70"
August 1-23, 2026(21 of 23 days covered by obs)
NOAA Normal
2.42"
Departure from Normal
-0.72" : 70% of Normal
Year-To-Date: 12.74"
Jan 1 to Aug 23, 2026(233 of 235 days covered by obs)
NOAA Normal
19.91"
Departure from Normal
-7.17" : 64% of Normal
Water Year-To-Date: 15.32"
Oct 1, 2025 to Aug 23, 2026(324 of 327 days covered by obs)
NOAA Normal
24.49"
Departure from Normal
-9.17" : 63% 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