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
As March transitions into April, Rook sees a rise in the average high-temperature, moving from a frosty 47.8°F (8.8°C) to a refreshing 60.6°F (15.9°C). Rook encounters an average low-temperature of 41.7°F (5.4°C) during April nights.Humidity
The average relative humidity in April is 75%.Rainfall
In Rook, Pennsylvania, in April, during 16.6 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Rook, during the entire year, the rain falls for 164 days and collects up to 26.89" (683mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.8 snowfall days, in April, Rook aggregates 0.28" (7mm) of snow. In Rook, during the entire year, snow falls for 53.3 days and aggregates up to 13.27" (337mm) of snow.Daylight
In Rook, the average length of the day in April is 13h and 19min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of April, sunrise is at 6:19 am and sunset at 8:15 pm EDT.
Sunshine
In April, the average sunshine is 7.5h.UV index
In Rook, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 in April translates into this advice:
Be vigilant - Preventing sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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 many days does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Rook have in April?
What is the UV index reading in April?
Average temperature in April
Rook, PA
- Average high temperature in April: 60.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in April
Rook, PA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Rook, PA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Rook, PA
- Average humidity in April: 75%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (73%).
Average rainfall in April
Rook, PA
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days in April
Rook, PA
- Average rainfall days in April: 16.6 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in April
Rook, PA
- Average snowfall in April: 0.28"
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
Rook, PA
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (16.3 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
Rook, 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 18min).
- Average sunshine in April: 7h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in April
Rook, PA
- Average sunshine days in April: 10.9 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in April
Rook, PA
- Average UV index in April: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Rook, PA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in April
Rook, PA
- Average visibility in April: 6mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, May, September, October and December (5mi).
Rook, Pennsylvania, USA
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