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
Noticing a change, the average high-temperature during April moves from March's frosty 48.7°F (9.3°C) to an enjoyable 61.3°F (16.3°C). Greencastle experiences an average low-temperature of 41.7°F (5.4°C) in the month of April.Humidity
April and July, with an average relative humidity of 75%, are the least humid months.Rainfall
In Greencastle, during April, the rain falls for 16.5 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, there are 161.8 rainfall days, and 28.07" (713mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.6 snowfall days, in April, Greencastle aggregates 0.28" (7mm) of snow. In Greencastle, during the entire year, snow falls for 26.6 days and aggregates up to 14.69" (373mm) of snow.Daylight
The average length of the day in April is 13h and 17min.On the first day of April, sunrise is at 6:53 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:04 pm EDT.
Sunshine
In Greencastle, the average sunshine in April is 8.5h.UV index
In Greencastle, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In April, a regular UV index of 3 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Greencastle in April?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
How many hours of daylight does Greencastle have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Greencastle have in April?
How high is the UV index in April?
Average temperature in April
Greencastle, PA
- Average high temperature in April: 61.3°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in April: 41.7°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in April
Greencastle, PA
- Average pressure in April: 29.98"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
Greencastle, PA
- Average wind speed in April: 7.5mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in April
Greencastle, PA
- Average humidity in April: 75%
The months with the highest relative humidity are February, May, October and December (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in April
Greencastle, PA
- Average rainfall in April: 2.68"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in April
Greencastle, PA
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is November (9 days).
Average snowfall in April
Greencastle, PA
- Average snowfall in April: 0.28"
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Greencastle, PA
- Average snowfall days in April: 0.6 days
The month with the highest number of snowfall days is January (8.1 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
Greencastle, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in April
Greencastle, PA
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in April
Greencastle, PA
- Average UV index in April: 3
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, November and December (UV index 2).
Average cloud cover in April
Greencastle, PA
- Average cloud cover in April: 44
The months with the most cloud cover are January, February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in April
Greencastle, 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).
Greencastle, Pennsylvania, USA
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