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
April brings a temperature increase, with average high-temperatures moving from March's chilly 47.8°F (8.8°C) to a refreshing 59.9°F (15.5°C). Lower Allen records a consistent low-temperature of 41.7°F (5.4°C) during April nights.Humidity
April is the least humid month in Lower Allen, Pennsylvania, with an average relative humidity of 75%.Rainfall
In Lower Allen, during April, the rain falls for 15.7 days and regularly aggregates up to 1.65" (42mm) of precipitation. In Lower Allen, during the entire year, the rain falls for 146 days and collects up to 19.53" (496mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Lower Allen aggregates 0.08" (2mm) of snow. In Lower Allen, during the entire year, snow falls for 23.2 days and aggregates up to 8.39" (213mm) of snow.Daylight
In April, the average length of the day is 13h and 18min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:32 pm. On the last day of April, sunrise is at 6:07 am and sunset at 8:02 pm EDT.
Sunshine
In Lower Allen, the average sunshine in April is 8.3h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during April translates into the following guidance:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the least humid month in Lower Allen?
What is the average humidity in April?
How much does it rain in Lower Allen in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Lower Allen have in April?
What is the UV index reading in April?
Average temperature in April
Lower Allen, PA
- Average high temperature in April: 59.9°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in April
Lower Allen, PA
- 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
Lower Allen, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Lower Allen, PA
- Average humidity in April: 75%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in April
Lower Allen, PA
- Average rainfall in April: 1.65"
The wettest months (with the highest rainfall) are May and August (2.09").
The driest months (with the least rainfall) are January and September (1.3").
Average rainfall days in April
Lower Allen, PA
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Lower Allen, PA
- Average snowfall in April: 0.08"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Lower Allen, PA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Lower Allen, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in April
Lower Allen, PA
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12 days).
Average UV index in April
Lower Allen, PA
- Average UV index in April: 4
The months with the highest UV index are May, 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
Lower Allen, PA
- Average cloud cover in April: 44
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Lower Allen, 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).
Lower Allen, Pennsylvania, USA
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