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 temperature shift, with the average high-temperature moving from a frosty 43.7°F (6.5°C) in March to a mild 55.8°F (13.2°C). Rock Glen experiences an average temperature drop to a wintry 38.1°F (3.4°C) during April nights.Humidity
With an average relative humidity of 78%, April is the least humid month.Rainfall
In Rock Glen, during April, the rain falls for 12.6 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Rock Glen, during the entire year, the rain falls for 111.5 days and collects up to 11.34" (288mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Rock Glen, during April, snow falls for 0.8 days and regularly aggregates up to 0.08" (2mm) of snow. In Rock Glen, during the entire year, snow falls for 31.5 days and aggregates up to 7.28" (185mm) of snow.Daylight
The average length of the day in April is 13h and 20min.On the first day of April, sunrise is at 6:46 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 8:00 pm EDT.
Sunshine
The average sunshine in April is 7.2h.UV index
In Rock Glen, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 3 during April translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from 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?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Rock Glen, PA
- Average high temperature in April: 55.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 38.1°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 (18.9°F).
Average pressure in April
Rock Glen, PA
- Average pressure in April: 29.98"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
Rock Glen, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in April
Rock Glen, PA
- Average humidity in April: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).
Average rainfall in April
Rock Glen, PA
- Average rainfall in April: 1.14"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in April
Rock Glen, PA
- Average rainfall days in April: 12.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in April
Rock Glen, PA
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Rock Glen, PA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rock Glen, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in April
Rock Glen, PA
- Average sunshine days in April: 15.2 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in April
Rock Glen, PA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Rock Glen, PA
- Average cloud cover in April: 52
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in April
Rock Glen, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Rock Glen, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location