April weather forecastWestlyn, TN
April
Weather in April
April in Westlyn, Tennessee, is a pleasant spring month, with an average temperature varying between 48.2°F (9°C) and 69.1°F (20.6°C).Temperature
Noticing a change, the average high-temperature during April moves from March's moderate 58.1°F (14.5°C) to an agreeable 69.1°F (20.6°C). Westlyn's average low-temperature in the month of April is recorded at a frosty 48.2°F (9°C).Humidity
The average relative humidity in April is 76%.Rainfall
In Westlyn, in April, during 15.4 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. Throughout the year, there are 177.6 rainfall days, and 37.91" (963mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Westlyn aggregates 0.16" (4mm) of snow. In Westlyn, during the entire year, snow falls for 19 days and aggregates up to 5.59" (142mm) of snow.Daylight
In Westlyn, the average length of the day in April is 13h and 8min.On the first day of the month, sunrise is at 7:21 am and sunset at 7:58 pm. On the last day of April, in Westlyn, sunrise is at 6:43 am and sunset at 8:22 pm EDT.
Sunshine
The average sunshine in April is 8.5h.UV index
In April, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily maximum UV index of 5 in April interprets into the following advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Westlyn, TN
- Average high temperature in April: 69.1°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in April: 48.2°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in April
Westlyn, 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
Westlyn, 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 (3.6mph).
Average humidity in April
Westlyn, TN
- Average humidity in April: 76%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in April
Westlyn, TN
- Average rainfall in April: 3.78"
The wettest month (with the highest rainfall) is February (4.33").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in April
Westlyn, TN
- Average rainfall days in April: 15.4 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in April
Westlyn, TN
- Average snowfall in April: 0.16"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Westlyn, TN
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Westlyn, TN
- Average daylight in April: 13h and 6min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in April
Westlyn, TN
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in April
Westlyn, 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
Westlyn, TN
- Average cloud cover in April: 37
The month with the most cloud cover is February (Cloud cover 52).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in April
Westlyn, TN
- Average visibility in April: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
