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
Derry's weather in April presents a rise in the average high-temperature, moving from a chilly 45.1°F (7.3°C) in March to a moderate 58.3°F (14.6°C). Throughout April, Derry encounters an average temperature drop to a cold 39.4°F (4.1°C).Humidity
April, July and August, with an average relative humidity of 78%, are the least humid months.Rainfall
In Derry, in April, during 15.7 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, in Derry, there are 156.2 rainfall days, and 19.45" (494mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Derry, Pennsylvania, during April, snow falls for 2.3 days and regularly aggregates up to 0.67" (17mm) of snow. Throughout the year, there are 49.9 snowfall days, and 18.11" (460mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 19min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:42 pm. On the last day of April, sunrise is at 6:16 am and sunset at 8:11 pm EDT.
Sunshine
In Derry, the average sunshine in April is 7.7h.UV index
In April, the average daily maximum UV index is 4. 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, the maximum UV index of 4 suggests these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What are the least humid months?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April in Derry?
How many hours of daylight does Derry have in April?
When are sunrise and sunset in April in Derry?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Derry, PA
- Average high temperature in April: 58.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in April: 39.4°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 (19.8°F).
Average pressure in April
Derry, 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
Derry, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Derry, PA
- Average humidity in April: 78%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, July and August (78%).
Average rainfall in April
Derry, PA
- Average rainfall in April: 1.73"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in April
Derry, PA
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in April
Derry, PA
- Average snowfall in April: 0.67"
The month with the highest snowfall is January (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Derry, PA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Derry, 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: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Derry, PA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is May (8.9 days).
Average UV index in April
Derry, 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
Derry, PA
- Average cloud cover in April: 50
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
Derry, PA
- Average visibility in April: 6mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Derry, Pennsylvania, USA
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