The highest day temperature in July 2026 was 112°F. The lowest night temperature was 60°F. The average values for day and night temperatures during July were 94.2°F и 72.7°F respectivly.

Most of the days in July are cloudy but you can also expect sunny or gloomy days.

Precipitation total in July for Harpers Ferry is 0.9 in.

The average wind speed in July is 4.9 mph. It makes July the most windless month of the year for Harpers Ferry.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Harpers Ferry in July is 9.1 hours.