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
April's arrival signals an increase in average high-temperatures, moving from March's cool 50.9°F (10.5°C) to an enjoyable 63.5°F (17.5°C). Knoxville experiences a nighttime temperature average of 43.3°F (6.3°C) during April.Humidity
April and July, with an average relative humidity of 74%, are the least humid months.Rainfall
In Knoxville, in April, it is raining for 16 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 163.3 rainfall days, and 29.84" (758mm) 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. During 0.2 snowfall days, in April, Knoxville aggregates 0.04" (1mm) of snow. In Knoxville, during the entire year, snow falls for 20.6 days and aggregates up to 12.13" (308mm) of snow.Daylight
The average length of the day in April is 13h and 16min.On the first day of April, sunrise is at 6:53 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:03 pm EDT.
Sunshine
The average sunshine in April is 8.8h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, a daily maximum UV index of 4 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What are the least humid months?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Knoxville have in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Knoxville have in April?
What is the UV index intensity in April?
Average temperature in April
Knoxville, MD
- Average high temperature in April: 63.5°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in April: 43.3°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Knoxville, MD
- Average pressure in April: 29.99"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
Knoxville, MD
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in April
Knoxville, MD
- Average humidity in April: 74%
The month with the highest relative humidity is October (79%).
The months with the lowest relative humidity are April and July (74%).
Average rainfall in April
Knoxville, MD
- Average rainfall in April: 2.56"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (1.97").
Average rainfall days in April
Knoxville, MD
- Average rainfall days in April: 16 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in April
Knoxville, MD
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Knoxville, MD
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (6.9 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, MD
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in April
Knoxville, MD
- Average sunshine days in April: 11.8 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in April
Knoxville, MD
- Average UV index in April: 4
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, November and December (UV index 2).
Average cloud cover in April
Knoxville, MD
- Average cloud cover in April: 42
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Knoxville, MD
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, May, September, October and December (5mi).
Knoxville, Maryland, USA
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