April weather forecastKnoxville, AL
April
Weather in April
April in Knoxville, Alabama, is a moderately hot spring month, with an average temperature ranging between min 54.1°F (12.3°C) and max 75.6°F (24.2°C).Temperature
April shows a rise in the average high-temperature, moving from March's refreshing 66°F (18.9°C) to a moderately hot 75.6°F (24.2°C). During April, the average low-temperature is recorded at a fresh 54.1°F (12.3°C).Humidity
In Knoxville, the average relative humidity in April is 74%.Rainfall
The month with the most rainfall is April, when the rain falls for 12.3 days and typically aggregates up to 4.29" (109mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In April, the average length of the day is 13h and 1min.On the first day of April, sunrise is at 6:37 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 7:32 pm CDT.
Sunshine
In Knoxville, the average sunshine in April is 9.5h.UV index
In April, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 during April translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Knoxville, AL
- Average high temperature in April: 75.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in April: 54.1°F
The months with the highest average low temperature are July and August (71.6°F).
The coldest month (with the lowest average low temperature) is January (37.4°F).
Average pressure in April
Knoxville, AL
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in April
Knoxville, AL
- Average wind speed in April: 7.1mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in April
Knoxville, AL
- Average humidity in April: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in April
Knoxville, AL
- Average rainfall in April: 4.29"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is October (2.28").
Average rainfall days in April
Knoxville, AL
- Average rainfall days in April: 12.3 days
The month with the highest number of rainy days is July (20.6 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in April
Knoxville, AL
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in April
Knoxville, AL
- Average snowfall days in April: 0 days
The months with the highest number of snowfall days are January and February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Knoxville, AL
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 9h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in April
Knoxville, AL
- Average sunshine days in April: 15.8 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in April
Knoxville, AL
- Average UV index in April: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in April
Knoxville, AL
- Average cloud cover in April: 35
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in April
Knoxville, AL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
