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 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
The onset of April introduces a subtle rise in the average high-temperature, nudging from a comfortable 66.2°F (19°C) in March to a moderately hot 74.1°F (23.4°C). Charleston Heights, during April, witnesses an average low-temperature of 59°F (15°C).Humidity
In Charleston Heights, the average relative humidity in April is 74%.Rainfall
In Charleston Heights, in April, it is raining for 11.4 days, with typically 1.65" (42mm) of accumulated precipitation. In Charleston Heights, during the entire year, the rain falls for 154.4 days and collects up to 23.43" (595mm) of precipitation.Snowfall
In Charleston Heights, snow does not fall in March through November.Daylight
The average length of the day in April is 13h and 1min.On the first day of April in Charleston Heights, sunrise is at 7:06 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 8:01 pm EDT.
Sunshine
The average sunshine in April is 9.7h.UV index
In Charleston Heights, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during April translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. 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.
Frequently asked questions
What is the usual temperature for Charleston Heights in April?
What is the average humidity in April in Charleston Heights?
How many days does it rain in April in Charleston Heights?
When it does not snow in Charleston Heights?
What is the average length of the day in April in Charleston Heights?
What time are sunrise and sunset in April in Charleston Heights?
How many hours of sunshine does Charleston Heights have in April?
How high is the UV index in April in Charleston Heights?
Average temperature in April
Charleston Heights, SC
- Average high temperature in April: 74.1°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in April: 59°F
The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in April
Charleston Heights, 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 (29.98"Hg).
Average wind speed in April
Charleston Heights, SC
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in April
Charleston Heights, SC
- Average humidity in April: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).
Average rainfall in April
Charleston Heights, SC
- Average rainfall in April: 1.65"
The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in April
Charleston Heights, SC
- Average rainfall days in April: 11.4 days
The month with the highest number of rainy days is August (22.7 days).
The month with the least rainy days is November (6.9 days).
Average snowfall days in April
Charleston Heights, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is December (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in April /
Average sunshine in April
Charleston Heights, 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 4min
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 36min).
Average sunshine days in April
Charleston Heights, SC
- Average sunshine days in April: 17.7 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (6.1 days).
Average UV index in April
Charleston Heights, SC
- Average UV index in April: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in April
Charleston Heights, SC
- Average cloud cover in April: 29
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in April
Charleston Heights, SC
- 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).
Charleston Heights, South Carolina, USA
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