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 arrival of April brings an increase in high-temperatures, moving from a wintry 41°F (5°C) in March to a fresh 53.2°F (11.8°C). In the month of April, Knoxville records a consistent average low-temperature of 34.5°F (1.4°C).Humidity
April through June, with an average relative humidity of 78%, are the least humid months.Rainfall
The month with the most rainfall is April, when the rain falls for 16.4 days and typically aggregates up to 2.95" (75mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Knoxville, Pennsylvania, in April, snow falls for 4.7 days, with typically accumulated 2.87" (73mm) of snow. In Knoxville, during the entire year, snow falls for 80.4 days and aggregates up to 33.03" (839mm) of snow.Daylight
The average length of the day in April is 13h and 23min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:35 pm. On the last day of April, sunrise is at 6:05 am and sunset at 8:07 pm EDT.
Sunshine
In Knoxville, the average sunshine in April is 7h.UV index
In Knoxville, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 3 during April translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Caution! The reflection of snow can nearly 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 Knoxville in April?
What is the least humid month?
What is the average humidity in April?
What is the wettest month?
How much does it rain in April?
How much does it snow in April?
How many hours of daylight does Knoxville have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April in Knoxville?
What is the UV index intensity in April?
Average temperature in April
Knoxville, PA
- Average high temperature in April: 53.2°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in April: 34.5°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in April
Knoxville, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Knoxville, PA
- Average wind speed in April: 9mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in April
Knoxville, PA
- Average humidity in April: 78%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in April
Knoxville, PA
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in April
Knoxville, PA
- Average rainfall days in April: 16.4 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in April
Knoxville, PA
- Average snowfall in April: 2.87"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Knoxville, PA
- Average snowfall days in April: 4.7 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Knoxville, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).
Average sunshine days in April
Knoxville, PA
- Average sunshine days in April: 9.5 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in April
Knoxville, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Knoxville, PA
- Average cloud cover in April: 55
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in April
Knoxville, PA
- Average visibility in April: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Knoxville, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location