Viewing Station: IA-AL-7 : Harpers Ferry 6.4 SSW
May 29, 2020 - May 25, 20262,069 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.16"
May 1-25, 2026(25 of 25 days covered by obs)
NOAA Normal
3.73"
Departure from Normal
-0.57" : 85% of Normal
Year-To-Date: 15.32"
Jan 1 to May 25, 2026(140 of 145 days covered by obs)
NOAA Normal
11.95"
Departure from Normal
3.37" : 128% of Normal
Water Year-To-Date: 18.37"
Oct 1, 2025 to May 25, 2026(228 of 237 days covered by obs)
NOAA Normal
18.13"
Departure from Normal
0.24" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.20
1.21
-0.01
Feb
1.17
1.20
-0.03
Mar
2.00
1.97
0.03
Apr
3.85
3.89
-0.04
May
4.63
4.68
-0.05
Jun
5.75
5.67
0.08
Jul
4.44
4.32
0.12
Aug
4.08
4.05
0.03
Sep
4.02
3.82
0.20
Oct
2.67
2.70
-0.03
Nov
2.06
2.03
0.03
Dec
1.45
1.52
-0.07
37.32
37.06
0.26