Viewing Station: IA-AL-7 : Harpers Ferry 6.4 SSW
May 29, 2020 - Sep 15, 20251,852 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.65"
September 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
2.01"
Departure from Normal
-1.36" : 32% of Normal
Year-To-Date: 24.26"
Jan 1 to Sep 15, 2025(248 of 258 days covered by obs)
NOAA Normal
29.13"
Departure from Normal
-4.87" : 83% of Normal
Water Year-To-Date: 32.48"
Oct 1, 2024 to Sep 15, 2025(340 of 350 days covered by obs)
NOAA Normal
35.31"
Departure from Normal
-2.83" : 92% 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