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
Williams's transition into April brings a slight rise in the average high-temperature, moving from a refreshing 67.6°F (19.8°C) in March to a warm 75.7°F (24.3°C). In April, the average low-temperature is a moderate 56.7°F (13.7°C).Humidity
In April, the average relative humidity is 74%.Rainfall
In Williams, during April, the rain falls for 11.2 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 149.7 rainfall days, and 21.5" (546mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
The average length of the day in April is 13h and 1min.On the first day of April, sunrise is at 7:10 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:05 pm EDT.
Sunshine
In April, the average sunshine is 9.5h.UV index
In Williams, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In April, the maximum UV index of 6 transforms into these recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Williams in April?
What is the average humidity in April?
How much does it rain in April?
When it does not snow?
How many hours of daylight does Williams have in April?
When are sunrise and sunset in April in Williams?
How many hours of sunshine does Williams have in April?
What is the UV index intensity in April?
Average temperature in April
Williams, SC
- Average high temperature in April: 75.7°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.1°F).
- Average low temperature in April: 56.7°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in April
Williams, SC
- Average pressure in April: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in April
Williams, SC
- Average wind speed in April: 6.7mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Williams, SC
- Average humidity in April: 74%
The months with the highest relative humidity are August and December (77%).
The months with the lowest relative humidity are January, March and November (72%).
Average rainfall in April
Williams, SC
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in April
Williams, SC
- Average rainfall days in April: 11.2 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (6.2 days).
Average snowfall in April
Williams, SC
- Average snowfall in April: 0"
The months with the highest snowfall are January and February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in April
Williams, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Williams, SC
- Average daylight in April: 13h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in April: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Williams, SC
- Average sunshine days in April: 17.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in April
Williams, SC
- Average UV index in April: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in April
Williams, SC
- Average cloud cover in April: 33
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 29).
Average visibility in April
Williams, SC
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Williams, South Carolina, USA
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