April weather forecastStony Run, PA
April
Weather in April
April is a moderate spring month in Stony Run, Pennsylvania, with an average temperature varying between 40.5°F (4.7°C) and 59°F (15°C).Temperature
April's onset brings a rise in the average high-temperature, moving from a frosty 46.8°F (8.2°C) in March to a moderate 59°F (15°C). Stony Run records an average nighttime low-temperature of 40.5°F (4.7°C) throughout April.Humidity
With an average relative humidity of 76%, April is the least humid month.Rainfall
In Stony Run, in April, during 15.5 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. Throughout the year, there are 147.9 rainfall days, and 25.94" (659mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Stony Run aggregates 0.12" (3mm) of snow. Throughout the year, there are 24.9 snowfall days, and 13.54" (344mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 6:45 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:58 pm EDT.
Sunshine
The average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in April leads to these guidelines:
Take precautions - Protection against sun damage is advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Stony Run, PA
- Average high temperature in April: 59°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in April: 40.5°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in April
Stony Run, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Stony Run, PA
- Average wind speed in April: 8mph
The windiest month (with the highest average wind speed) is March (8.2mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Stony Run, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Stony Run, PA
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is August (2.8").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in April
Stony Run, PA
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in April
Stony Run, PA
- Average snowfall in April: 0.12"
The month with the highest snowfall is January (4.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Stony Run, PA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Stony Run, PA
- 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in April
Stony Run, PA
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (11 days).
Average UV index in April
Stony Run, PA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Stony Run, PA
- Average cloud cover in April: 47
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in April
Stony Run, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, March, April, June, July and November (6mi).
The months with the lowest visibility are February, May, August, September, October and December (5mi).
