World Resorts USA Harpers Ferry Weather

Harpers Ferry weather in August

Weather in Harpers Ferry: August

Average day temperature: 83.3°F
Average night temperature: 67.3°F
Number of sunny days: 11 days
Day length: 13.1 - 14.2 hours
Number of rainy days: 3 days
Precipitation totals: 1.5 in.

Air temperature in August, °F

Show year:
2026
2025
2024

The highest day temperature during August of 2026 was 93°F. At the same time the lowest night temperature was 59°F. Daily and nightly averages during August were 86.2°F and 68.2°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in August is almost equal.

Precipitation total in August, in.

Precipitation total value in Harpers Ferry in August is 1.5 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 5.1 mph It makes August 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 August is: 8.2.

Best time for vacation in Harpers Ferry

Sunniest months:
November 17 days
October 16 days
June 14 days
Warmest months:
July 87.5 °F
August 83.3 °F
June 80.9 °F
Coldest months:
January 38.2 °F
February 42.4 °F
December 43.2 °F
Rainiest months:
August 3 days
April 2 days
September 2 days
Windiest months:
March 8.6 mph
April 7.9 mph
January 7.9 mph

Harpers Ferry on a weather map

Harpers Ferry
+61°F
SW 4 mph
Feels like: +61°F
Precip.: 16%
Places in USA:
Name
°F
+55°F
+64°F
+79°F
+77°F
+70°F
+81°F
+63°F
+63°F
+68°F
+59°F
+68°F
+73°F
+81°F
+64°F
24 Hours Forecast
Harpers Ferry
Local time: 05:19
September 19, saturday
0600
61°F
SW
4 mph
0900
63°F
SW
4 mph
1200
73°F
W
7 mph
1500
79°F
NW
7 mph
1800
75°F
NW
7 mph
2100
68°F
NW
9 mph
September 20, sunday
0000
68°F
NW
11 mph
0300
66°F
NW
11 mph
Units of measurement: °C / °F