April weather forecastRadnor, OH
April
Weather in April
April in Radnor, Ohio, is a mild spring month, with an average temperature varying between 42.8°F (6°C) and 59.9°F (15.5°C).Temperature
April's arrival sees a rise in the average high-temperature, jumping from March's chilly 47.7°F (8.7°C) to a mild 59.9°F (15.5°C). In the month of April, Radnor experiences an average low-temperature of 42.8°F (6°C).Humidity
In April, the average relative humidity in Radnor is 76%.Rainfall
In Radnor, Ohio, in April, it is raining for 17 days, with typically 3.31" (84mm) of accumulated precipitation. In Radnor, during the entire year, the rain falls for 172.1 days and collects up to 32.01" (813mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.2 snowfall days, in April, Radnor aggregates 0.31" (8mm) of snow. In Radnor, during the entire year, snow falls for 46.8 days and aggregates up to 13.58" (345mm) of snow.Daylight
The average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 7:14 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:27 pm EDT.
Sunshine
In April, the average sunshine is 7.4h.UV index
The average daily maximum UV index in April in Radnor is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 during April leads to these advisories:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Radnor, OH
- Average high temperature in April: 59.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in April: 42.8°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in April
Radnor, OH
- Average pressure in April: 29.96"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Radnor, OH
- Average wind speed in April: 9.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in April
Radnor, OH
- Average humidity in April: 76%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in April
Radnor, OH
- Average rainfall in April: 3.31"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in April
Radnor, OH
- Average rainfall days in April: 17 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (10 days).
Average snowfall in April
Radnor, OH
- Average snowfall in April: 0.31"
The month with the highest snowfall is January (3.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Radnor, OH
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Radnor, OH
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in April
Radnor, OH
- Average sunshine days in April: 10.9 days
The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in April
Radnor, OH
- Average UV index in April: 4
The months with the highest UV index are 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
Radnor, OH
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in April
Radnor, OH
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
