Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival is noted with a slight increase in the average high-temperature, moving from an agreeable 70.5°F (21.4°C) in April to a moderately hot 78.8°F (26°C). During the month of May, the temperature generally drops to a low average of 58.3°F (14.6°C).Humidity
The months with the highest humidity are March and May, with an average relative humidity of 78%.Rainfall
May is the month with the most rainfall. Rain falls for 13.3 days and accumulates 3.19" (81mm) of precipitation.Snowfall
In Charleston, snow does not fall in April through November.Daylight
In May, the average length of the day is 14h and 2min.On the first day of the month, sunrise is at 6:23 am and sunset at 8:02 pm. On the last day of May, sunrise is at 6:02 am and sunset at 8:25 pm CDT.
Sunshine
In May, the average sunshine is 9h.UV index
In Charleston, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 in May translates into these instructions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What are the most humid months?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in May?
When it does not snow?
How many hours of daylight does Charleston have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Charleston have in May?
What is the UV index intensity in May?
Average temperature in May
Charleston, AR
- Average high temperature in May: 78.8°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in May: 58.3°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in May
Charleston, AR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Charleston, AR
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Charleston, AR
- Average humidity in May: 78%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in May
Charleston, AR
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in May
Charleston, AR
- Average rainfall days in May: 13.3 days
The months with the highest number of rainy days are May and July (13.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Charleston, AR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Charleston, AR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Charleston, AR
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in May
Charleston, AR
- Average sunshine days in May: 16 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in May
Charleston, AR
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Charleston, AR
- Average cloud cover in May: 38
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in May
Charleston, AR
- Average visibility in May: 5mi
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).
Charleston, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location