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
As Williston transitions into April, the average high-temperature is observed to rise from a moderate 59.7°F (15.4°C) in March to a pleasant 69.8°F (21°C). In Williston, an average nighttime temperature of 52.2°F (11.2°C) is expected during April.Humidity
The average relative humidity in April is 78%.Rainfall
In Williston, Tennessee, in April, it is raining for 10.8 days, with typically 1.5" (38mm) of accumulated precipitation. In Williston, Tennessee, during the entire year, the rain falls for 132.5 days and collects up to 16.26" (413mm) of precipitation.Snowfall
In Williston, snow does not fall in April through October.Daylight
The average length of the day in April is 13h and 6min.On the first day of April, sunrise is at 6:42 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 7:42 pm CDT.
Sunshine
The average sunshine in April in Williston is 9.2h.UV index
In Williston, the average daily maximum UV index in April is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 5 in April translates into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures in Williston?
What is the average humidity in April in Williston?
How many days does it rain in April in Williston?
When it does not snow in Williston?
Does it snow in Williston in April?
What is the average length of the day in April in Williston?
When is the sunrise / sunset in April in Williston?
How long on average sun shines in April in Williston?
What is the UV index reading in April in Williston?
Average temperature in April
Williston, TN
- Average high temperature in April: 69.8°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (46.4°F).
- Average low temperature in April: 52.2°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in April
Williston, TN
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Williston, TN
- Average wind speed in April: 8.7mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in April
Williston, TN
- Average humidity in April: 78%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Williston, TN
- Average rainfall in April: 1.5"
The wettest month (with the highest rainfall) is July (1.89").
The driest months (with the least rainfall) are September and November (0.75").
Average rainfall days in April
Williston, TN
- Average rainfall days in April: 10.8 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in April
Williston, TN
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Williston, TN
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (1.6 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
Williston, TN
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in April: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
Williston, TN
- Average sunshine days in April: 17 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in April
Williston, TN
- Average UV index in April: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in April
Williston, TN
- Average cloud cover in April: 36
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in April
Williston, TN
- 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).
Williston, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location