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
Noticing a change, the average high-temperature during April moves from March's cool 54°F (12.2°C) to a refreshing 65.8°F (18.8°C). In April, the temperature drops to an average of 46°F (7.8°C) at night.Humidity
In April, the average relative humidity is 76%.Rainfall
In South Williamson, during April, the rain falls for 16.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. In South Williamson, during the entire year, the rain falls for 163.6 days and collects up to 30.43" (773mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in South Williamson. In April, it is snowing for 1.3 days. Throughout April, 0.43" (11mm) of snow is accumulated. In South Williamson, during the entire year, snow falls for 32.9 days and aggregates up to 16.81" (427mm) of snow.Daylight
In South Williamson, the average length of the day in April is 13h and 12min.On the first day of the month, sunrise is at 7:13 am and sunset at 7:52 pm. On the last day of April, sunrise is at 6:33 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in April converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How many hours of sunshine does South Williamson have in April?
What is the UV index reading in April?
Average temperature in April
South Williamson, KY
- Average high temperature in April: 65.8°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.1°F).
- Average low temperature in April: 46°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in April
South Williamson, KY
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in April
South Williamson, KY
- Average wind speed in April: 6.4mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in April
South Williamson, KY
- Average humidity in April: 76%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are July, August and November (75%).
Average rainfall in April
South Williamson, KY
- Average rainfall in April: 2.83"
The wettest months (with the highest rainfall) are February and May (3.27").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in April
South Williamson, KY
- Average rainfall days in April: 16.7 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in April
South Williamson, KY
- Average snowfall in April: 0.43"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
South Williamson, KY
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
South Williamson, KY
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in April
South Williamson, KY
- Average sunshine days in April: 11.7 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in April
South Williamson, KY
- Average UV index in April: 5
The months with the highest UV index are June 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
South Williamson, KY
- Average cloud cover in April: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
South Williamson, KY
- Average visibility in April: 6mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
South Williamson, Kentucky, USA
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