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 start of April brings a shift in the average high-temperature, increasing from March's frosty 48°F (8.9°C) to a moderate 60.3°F (15.7°C). In Atglen, an average temperature of 42.8°F (6°C) is noted during April nights.Humidity
April is the least humid month, with an average relative humidity of 76%.Rainfall
In Atglen, in April, during 13.1 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 138.3 rainfall days, and 19.76" (502mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Atglen, during April, snow falls for 0.5 days and regularly aggregates up to 0.28" (7mm) of snow. In Atglen, during the entire year, snow falls for 19.6 days and aggregates up to 7.64" (194mm) of snow.Daylight
The average length of the day in April is 13h and 17min.On the first day of April, sunrise is at 6:46 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:57 pm EDT.
Sunshine
The average sunshine in April is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 4 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
What is the average length of the day in April?
When is the sunrise / sunset in April in Atglen?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Atglen, PA
- Average high temperature in April: 60.3°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 (35.6°F).
- Average low temperature in April: 42.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in April
Atglen, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Atglen, PA
- Average wind speed in April: 8.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Atglen, PA
- Average humidity in April: 76%
The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in April
Atglen, PA
- Average rainfall in April: 1.61"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in April
Atglen, PA
- Average rainfall days in April: 13.1 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in April
Atglen, PA
- Average snowfall in April: 0.28"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Atglen, PA
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Atglen, PA
- Average daylight in April: 13h and 2min
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 24min).
- Average sunshine in April: 8h and 1min
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
Atglen, PA
- Average sunshine days in April: 14.6 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in April
Atglen, PA
- 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, March, November and December (UV index 2).
Average cloud cover in April
Atglen, PA
- Average cloud cover in April: 46
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in April
Atglen, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Atglen, Pennsylvania, USA
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