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
An upsurge in temperatures occurs as March gives way to April, with average highs shifting from a chilly 48.7°F (9.3°C) to a refreshing 61.3°F (16.3°C). During the April nights, an average temperature of 41.7°F (5.4°C) is observed.Humidity
The months with the lowest humidity in Greencastle are April and July, with an average relative humidity of 75%.Rainfall
In Greencastle, in April, during 16.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. In Greencastle, during the entire year, the rain falls for 161.8 days and collects up to 28.07" (713mm) of precipitation.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 the month, sunrise is at 6:53 am and sunset at 7:35 pm. On the last day of April, sunrise is at 6:11 am and sunset at 8:04 pm EDT.
Sunshine
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 medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 during April translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April in Greencastle?
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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