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
An increase in the average high-temperature marks April, moving from March's enjoyable 63.1°F (17.3°C) to an agreeable 73.2°F (22.9°C). In Iris, April's nights observe an average temperature dip to a cool 53.1°F (11.7°C).Humidity
In April, the average relative humidity is 74%.Rainfall
In Iris, South Carolina, in April, during 13.8 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, in Iris, there are 160.1 rainfall days, and 33.94" (862mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in April is 13h and 4min.On the first day of April, sunrise is at 7:15 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 8:13 pm EDT.
Sunshine
The average sunshine in April is 8.9h.UV index
The average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 during April leads to these advisories:
Undertake precautions - Guarding against sun damage is counselled. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April in Iris?
How much does it rain in April?
When it does not snow?
Does it snow in April?
How many hours of daylight does Iris have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April in Iris?
What is the UV index intensity in April?
Average temperature in April
Iris, SC
- Average high temperature in April: 73.2°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in April: 53.1°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in April
Iris, SC
- Average pressure in April: 30.02"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in April
Iris, SC
- Average wind speed in April: 7.2mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in April
Iris, SC
- Average humidity in April: 74%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Iris, SC
- Average rainfall in April: 3.03"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in April
Iris, SC
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is October (9.1 days).
Average snowfall in April
Iris, SC
- Average snowfall in April: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in April
Iris, SC
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.8 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
Iris, SC
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in April: 8h and 5min
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 18min).
Average sunshine days in April
Iris, SC
- Average sunshine days in April: 14.8 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in April
Iris, SC
- Average UV index in April: 5
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in April
Iris, SC
- Average cloud cover in April: 33
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in April
Iris, 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).
Iris, South Carolina, USA
Weather forecast for your location
2. Allow the app to use your location