Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Harpers Ferry's temperatures tend to reach their peak averages in July, with a high of 79.9°F (26.6°C) and a low of 61.9°F (16.6°C).Humidity
The average relative humidity in July in Harpers Ferry is 83%.Rainfall
In July, the rain falls for 13.8 days. Throughout July, 2.48" (63mm) of precipitation is accumulated. In Harpers Ferry, during the entire year, the rain falls for 124.7 days and collects up to 22.56" (573mm) of precipitation.Snowfall
June through September are months without snowfall in Harpers Ferry.Daylight
The average length of the day in July in Harpers Ferry is 15h and 0min.On the first day of July, sunrise is at 5:29 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:27 pm CDT.
Sunshine
In Harpers Ferry, the average sunshine in July is 9.7h.UV index
The months with the highest UV index in Harpers Ferry, Iowa, are June and July, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 6 during July morphs into the following directions:
Deflect overexposure. Sun protection is a necessity. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Harpers Ferry?
What are July temperatures in Harpers Ferry?
What is the average humidity in July in Harpers Ferry?
How many days does it rain in July in Harpers Ferry?
When it does not snow in Harpers Ferry?
What is the average length of the day in July in Harpers Ferry?
When are sunrise and sunset in July in Harpers Ferry?
How many hours of sunshine does Harpers Ferry have in July?
What is the month with the highest UV index in Harpers Ferry?
What is the UV index intensity in July in Harpers Ferry?
Average temperature in July
Harpers Ferry, IA
- Average high temperature in July: 79.9°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (23.2°F).
- Average low temperature in July: 61.9°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in July
Harpers Ferry, IA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in July
Harpers Ferry, IA
- Average wind speed in July: 6.6mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in July
Harpers Ferry, IA
- Average humidity in July: 83%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (76%).
Average rainfall in July
Harpers Ferry, IA
- Average rainfall in July: 2.48"
The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in July
Harpers Ferry, IA
- Average rainfall days in July: 13.8 days
The month with the highest number of rainy days is June (18.6 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in July
Harpers Ferry, IA
- Average snowfall in July: 0"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Harpers Ferry, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Harpers Ferry, IA
- Average daylight in July: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in July: 9h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in July
Harpers Ferry, IA
- Average sunshine days in July: 13.3 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in July
Harpers Ferry, IA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in July
Harpers Ferry, IA
- Average cloud cover in July: 36
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in July
Harpers Ferry, IA
- Average visibility in July: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Harpers Ferry, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location