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
In Knoxville, the average high-temperature in April increases from a refreshing 58.1°F (14.5°C) in March to a pleasant 69.3°F (20.7°C). The average nighttime temperature in Knoxville lowers to a chilly 48°F (8.9°C) throughout April.Humidity
In Knoxville, the average relative humidity in April is 74%.Rainfall
In Knoxville, in April, during 13.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 148.9 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall in Knoxville are January through April, November and December. April is the last month it regularly snows in Knoxville. During 0.3 snowfall days, in April, Knoxville aggregates 0.08" (2mm) of snow. In Knoxville, during the entire year, snow falls for 11.5 days and aggregates up to 3.94" (100mm) of snow.Daylight
In Knoxville, the average length of the day in April is 13h and 8min.On the first day of April, sunrise is at 7:20 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:22 pm EDT.
Sunshine
In Knoxville, Tennessee, the average sunshine in April is 8.3h.UV index
The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the average April temperature in Knoxville?
What is the average humidity in April in Knoxville?
How many days does it rain in April in Knoxville?
What is the last month it snows in Knoxville?
What is the average length of the day in April in Knoxville?
When are sunrise and sunset in April in Knoxville?
How long on average sun shines in April in Knoxville?
What is the UV index intensity in April in Knoxville?
Average temperature in April
Knoxville, TN
- Average high temperature in April: 69.3°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in April: 48°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).
Average pressure in April
Knoxville, TN
- Average pressure in April: 30"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in April
Knoxville, TN
- Average wind speed in April: 6mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in April
Knoxville, TN
- Average humidity in April: 74%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is August (70%).
Average rainfall in April
Knoxville, TN
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is February (3.66").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in April
Knoxville, TN
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in April
Knoxville, TN
- Average snowfall in April: 0.08"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Knoxville, TN
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Knoxville, TN
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in April
Knoxville, TN
- Average sunshine days in April: 14.3 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in April
Knoxville, TN
- Average UV index in April: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Knoxville, TN
- Average cloud cover in April: 38
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in April
Knoxville, TN
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Knoxville, Tennessee, USA
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