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 start of April signals an increase in the average high-temperature, moving from an icy 41°F (5°C) in March to a fresh 53.2°F (11.8°C). An average minimum temperature of 34.5°F (1.4°C) is recorded during the month of April.Humidity
April through June, with an average relative humidity of 78%, are the least humid months.Rainfall
April is the month with the most rainfall. Rain falls for 16.4 days and accumulates 2.95" (75mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Knoxville, during April, snow falls for 4.7 days and regularly aggregates up to 2.87" (73mm) of snow. Throughout the year, there are 80.4 snowfall days, and 33.03" (839mm) of snow is accumulated.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, in Knoxville, sunrise is at 6:05 am and sunset at 8:07 pm EDT.
Sunshine
In April, the average sunshine 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 threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 during April translates into the following directions:
Be vigilant - Suggestions to stave off sun damage are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the usual temperature for Knoxville in April?
What are the least humid months in Knoxville?
What is the average humidity in April in Knoxville?
What is the wettest month in Knoxville?
How much does it rain in Knoxville in April?
How much does it snow in Knoxville in April?
What is the average length of the day in April in Knoxville?
When is the sunrise / sunset in April in Knoxville?
How long on average sun shines in April in Knoxville?
What is the UV index reading in April in Knoxville?
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
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