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
With the onset of April, Southwest's average high-temperature sees a rise, moving from March's chilly 46.8°F (8.2°C) to a mild 59.5°F (15.3°C). During April, Southwest's temperature falls to a steady low-temperature average of 40.6°F (4.8°C).Humidity
April, July and August, with an average relative humidity of 77%, are the least humid months.Rainfall
In Southwest, during April, the rain falls for 18.2 days and regularly aggregates up to 3.23" (82mm) of precipitation. Throughout the year, there are 185.4 rainfall days, and 34.02" (864mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Southwest, in April, during 2.9 snowfall days, 1.1" (28mm) of snow is typically accumulated. In Southwest, Pennsylvania, during the entire year, snow falls for 63.2 days and aggregates up to 29.02" (737mm) of snow.Daylight
In April, the average length of the day is 13h and 18min.On the first day of the month, sunrise is at 7:00 am and sunset at 7:42 pm. On the last day of April, in Southwest, sunrise is at 6:17 am and sunset at 8:12 pm EDT.
Sunshine
In Southwest, the average sunshine in April is 7.7h.UV index
In Southwest, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in April translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are April temperatures in Southwest?
What is the least humid month in Southwest?
What is the average humidity in April in Southwest?
How many days does it rain in April in Southwest?
How much does it snow in Southwest in April?
How many hours of daylight does Southwest have in April?
When are sunrise and sunset in April in Southwest?
How many hours of sunshine does Southwest have in April?
How high is the UV index in April in Southwest?
Average temperature in April
Southwest, PA
- Average high temperature in April: 59.5°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in April: 40.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in April
Southwest, 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
Southwest, PA
- Average wind speed in April: 7.8mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Southwest, PA
- Average humidity in April: 77%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in April
Southwest, PA
- Average rainfall in April: 3.23"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in April
Southwest, PA
- Average rainfall days in April: 18.2 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in April
Southwest, PA
- Average snowfall in April: 1.1"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Southwest, PA
- Average snowfall days in April: 2.9 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Southwest, 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 month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in April
Southwest, PA
- Average sunshine days in April: 9.8 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in April
Southwest, PA
- Average UV index in April: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in April
Southwest, PA
- Average cloud cover in April: 49
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in April
Southwest, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Southwest, Pennsylvania, USA
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