April weather forecastGraniteville, SC
April
Weather in April
April is a warm spring month in Graniteville, South Carolina, with an average temperature fluctuating between 55.8°F (13.2°C) and 74.3°F (23.5°C).Temperature
A rise in the average high-temperature is observed during April, moving from a comfortable 65.3°F (18.5°C) in March to a moderately hot 74.3°F (23.5°C). An average nighttime temperature of 55.8°F (13.2°C) is observed in Graniteville during April.Humidity
In Graniteville, the average relative humidity in April is 71%.Rainfall
In Graniteville, South Carolina, in April, it is raining for 11.9 days, with typically 2.87" (73mm) of accumulated precipitation. In Graniteville, during the entire year, the rain falls for 146.7 days and collects up to 27.2" (691mm) of precipitation.Snowfall
In Graniteville, snow does not fall in March through November.Daylight
In April, the average length of the day in Graniteville is 13h and 2min.On the first day of April in Graniteville, sunrise is at 7:13 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:09 pm EDT.
Sunshine
The average sunshine in April is 9.1h.UV index
In Graniteville, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 6 suggests these recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Graniteville, SC
- Average high temperature in April: 74.3°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 (53.8°F).
- Average low temperature in April: 55.8°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 (37.9°F).
Average pressure in April
Graniteville, SC
- Average pressure in April: 30.02"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in April
Graniteville, SC
- Average wind speed in April: 8.4mph
The windiest months (with the highest average wind speed) are February, March and April (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in April
Graniteville, SC
- Average humidity in April: 71%
The month with the highest relative humidity is December (75%).
The months with the lowest relative humidity are July and November (69%).
Average rainfall in April
Graniteville, SC
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in April
Graniteville, SC
- Average rainfall days in April: 11.9 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in April
Graniteville, SC
- Average snowfall in April: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in April
Graniteville, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.5 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
Graniteville, 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 6min
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 24min).
Average sunshine days in April
Graniteville, SC
- Average sunshine days in April: 16.3 days
The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in April
Graniteville, 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
Graniteville, SC
- Average cloud cover in April: 32
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in April
Graniteville, 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).





