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 shift into April is accompanied by a temperature increase, with the average high-temperature rising from a chilly 47.8°F (8.8°C) in March to a mild 60.1°F (15.6°C). In the month of April, the nighttime temperature dips to a steady average of 41.4°F (5.2°C).Humidity
The months with the lowest humidity in Irwin are April, July and August, with an average relative humidity of 76%.Rainfall
In Irwin, during April, the rain falls for 15.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Irwin, during the entire year, the rain falls for 161.9 days and collects up to 19.29" (490mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 1.9 snowfall days, in April, Irwin aggregates 0.24" (6mm) of snow. In Irwin, during the entire year, snow falls for 49.2 days and aggregates up to 8.62" (219mm) of snow.Daylight
In Irwin, the average length of the day in April is 13h and 19min.On the first day of April in Irwin, Pennsylvania, sunrise is at 7:01 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in April is 7.8h.UV index
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 exposure to the Sun's UV radiation for the average person.Note: An average UV index of 4 in April transforms into this advice:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What are the least humid months?
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?
When are sunrise and sunset in April?
How many hours of sunshine does Irwin have in April?
What is the UV index intensity in April?
Average temperature in April
Irwin, PA
- Average high temperature in April: 60.1°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in April: 41.4°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in April
Irwin, 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 (29.95"Hg).
Average wind speed in April
Irwin, PA
- Average wind speed in April: 7.5mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Irwin, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in April
Irwin, PA
- Average rainfall in April: 1.97"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.14").
Average rainfall days in April
Irwin, PA
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in April
Irwin, PA
- Average snowfall in April: 0.24"
The month with the highest snowfall is January (2.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Irwin, PA
- Average snowfall days in April: 1.9 days
The month with the highest number of snowfall days is January (14.2 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
Irwin, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Irwin, PA
- Average sunshine days in April: 11.9 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is February (9 days).
Average UV index in April
Irwin, PA
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Irwin, PA
- Average cloud cover in April: 48
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in April
Irwin, 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).
Irwin, Pennsylvania, USA
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