Weather in Harpers Ferry: September
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Average day temperature: | 75.9°F |
| Average night temperature: | 60.6°F | |
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Number of sunny days: | 14 days |
| Day length: | 11.8 - 13.0 hours | |
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Number of rainy days: | 2 days |
| Precipitation totals: | 1.0 in. | |
| more information | ||
14 days
forecast
forecast
| Harpers Ferry |
weather in
October
October
| Harpers Ferry |
Air temperature in September, °F
Show year:
2025
2024
2023
The highest day temperature during September of 2025 was 86°F. At the same time the lowest night temperature was 46°F. Daily and nightly averages during September were 77.3°F and 59.2°F.
Sunny, partly cloudy and cloudy days
Mostly all days in September are sunny but cloudy days are also possible.
Precipitation total in September, in.
Precipitation total value in Harpers Ferry in September is 1.0 in. Other months of the year show relatively similar values.
Wind speed in September, mph
The average wind speed value in September is 5.6 mph It makes September one of the least windy months of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.5.
Best time for vacation in Harpers Ferry
Harpers Ferry on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Harpers Ferry
Local time: 01:12
December 05, friday
0300
28°F
SW
6 mph
6 mph
0600
28°F
W
6 mph
6 mph
0900
27°F
NW
4 mph
4 mph
1200
28°F
NW
8 mph
8 mph
1500
32°F
N
7 mph
7 mph
1800
32°F
NW
4 mph
4 mph
2100
28°F
NW
2 mph
2 mph
December 06, saturday
0000
28°F
N
2 mph
2 mph
