Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The onset of April brings a rise in the average high-temperature, elevating from a cold 41.7°F (5.4°C) in March to a fresh 54.7°F (12.6°C). In South Sterling, an average nighttime temperature of 37°F (2.8°C) is expected during April.Humidity
In April, the average relative humidity in South Sterling is 78%.Rainfall
In South Sterling, in April, during 15.7 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 154.8 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in South Sterling. In South Sterling, during April, snow falls for 3.8 days and regularly aggregates up to 1.69" (43mm) of snow. In South Sterling, during the entire year, snow falls for 62.1 days and aggregates up to 38.86" (987mm) of snow.Daylight
In South Sterling, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:26 pm. On the last day of April, sunrise is at 5:59 am and sunset at 7:58 pm EDT.
Sunshine
The average sunshine in April is 7.4h.UV index
In South Sterling, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 3 in April translates into these instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
How many hours of daylight does South Sterling have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
South Sterling, PA
- Average high temperature in April: 54.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in April: 37°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in April
South Sterling, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
South Sterling, PA
- Average wind speed in April: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in April
South Sterling, PA
- Average humidity in April: 78%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in April
South Sterling, PA
- Average rainfall in April: 3.03"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
South Sterling, PA
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in April
South Sterling, PA
- Average snowfall in April: 1.69"
The month with the highest snowfall is February (8.03").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
South Sterling, PA
- Average snowfall days in April: 3.8 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
South Sterling, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in April
South Sterling, PA
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in April
South Sterling, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
South Sterling, PA
- Average cloud cover in April: 52
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in April
South Sterling, PA
- Average visibility in April: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
South Sterling, Pennsylvania, USA
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