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
In April, the meteorological conditions change with the average high-temperature moving from a cool 54°F (12.2°C) in March to a refreshing 65.8°F (18.8°C). Williamson's temperature drops to an average low of 46°F (7.8°C) during the nights of April.Humidity
The average relative humidity in April is 76%.Rainfall
In Williamson, during April, the rain falls for 16.7 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Williamson, there are 163.6 rainfall days, and 30.43" (773mm) of precipitation is accumulated.Snowfall
Months with snowfall in Williamson are January through May, October through December. In Williamson, during April, snow falls for 1.3 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 32.9 snowfall days, and 16.81" (427mm) of snow is accumulated.Daylight
In 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
In April, the average sunshine is 8.4h.UV index
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 ordinary individuals.Note: In April, the average maximum UV index of 5 translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What are April temperatures in Williamson?
What is the average humidity in April in Williamson?
How many days does it rain in April in Williamson?
How much does it snow in Williamson in April?
How many hours of daylight does Williamson have in April?
What time are sunrise and sunset in April in Williamson?
How long on average sun shines in April in Williamson?
How high is the UV index in April in Williamson?
Average temperature in April
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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
Williamson, WV
- 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).
Williamson, West Virginia, USA
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