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
The shift from April to May is marked by an increase in the average high-temperature, moving from an enjoyable 66.9°F (19.4°C) to a warm 75.9°F (24.4°C). The temperature dips to an average of 58.6°F (14.8°C) during May nights.Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In Charleston, in May, it is raining for 13.4 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 118.1 rainfall days, and 12.28" (312mm) of precipitation is accumulated.Snowfall
In Charleston, Kentucky, snow does not fall in April through October.Daylight
In Charleston, Kentucky, the average length of the day in May is 14h and 11min.On the first day of May in Charleston, sunrise is at 5:54 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:05 pm CDT.
Sunshine
The average sunshine in May is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during May translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Charleston?
What is the most humid month in Charleston?
What is the average humidity in May in Charleston?
How many days does it rain in May in Charleston?
When it does not snow in Charleston?
How many hours of daylight does Charleston have in May?
When are sunrise and sunset in May in Charleston?
How many hours of sunshine does Charleston have in May?
What is the month with the highest UV index in Charleston?
What is the UV index reading in May in Charleston?
Average temperature in May
Charleston, KY
- Average high temperature in May: 75.9°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in May: 58.6°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in May
Charleston, KY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Charleston, KY
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in May
Charleston, KY
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Charleston, KY
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is April (1.34").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in May
Charleston, KY
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in May
Charleston, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Charleston, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Charleston, KY
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Charleston, KY
- Average sunshine days in May: 14.1 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in May
Charleston, KY
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Charleston, KY
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in May
Charleston, KY
- Average visibility in May: 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, Kentucky, USA
Weather forecast for your location
2. Allow the app to use your location