April weather forecastHarpers Ferry, WV
April
Weather in April
April in Harpers Ferry, West Virginia, is a comfortable spring month, with an average temperature fluctuating between 63.5°F (17.5°C) and 43.3°F (6.3°C).Temperature
As Harpers Ferry welcomes April, the average high-temperature sees a rise, transitioning from a cool 50.9°F (10.5°C) in March to an enjoyable 63.5°F (17.5°C). Harpers Ferry witnesses an average low-temperature of 43.3°F (6.3°C) throughout the month of April.Humidity
The months with the lowest humidity are April and July, with an average relative humidity of 74%.Rainfall
In April, in Harpers Ferry, West Virginia, the rain falls for 16 days. Throughout April, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 163.3 rainfall days, and 29.84" (758mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.2 snowfall days, in April, Harpers Ferry aggregates 0.04" (1mm) of snow. In Harpers Ferry, during the entire year, snow falls for 20.6 days and aggregates up to 12.13" (308mm) of snow.Daylight
In April, the average length of the day is 13h and 16min.On the first day of April, sunrise is at 6:53 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:03 pm EDT.
Sunshine
The average sunshine in April is 8.8h.UV index
In Harpers Ferry, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 4 during April morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Harpers Ferry, WV
- Average high temperature in April: 63.5°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in April: 43.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Harpers Ferry, WV
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Harpers Ferry, WV
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in April
Harpers Ferry, WV
- Average humidity in April: 74%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in April
Harpers Ferry, WV
- Average rainfall in April: 2.56"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in April
Harpers Ferry, WV
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in April
Harpers Ferry, WV
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Harpers Ferry, WV
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Harpers Ferry, WV
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in April
Harpers Ferry, WV
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in April
Harpers Ferry, WV
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Harpers Ferry, WV
- Average cloud cover in April: 42
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Harpers Ferry, WV
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
