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
A subtle rise in the average high-temperature is observed during May, adjusting from a pleasant 72.9°F (22.7°C) in April to a moderately hot 81.1°F (27.3°C). An average minimum temperature of 62.8°F (17.1°C) is recorded during the month of May.Heat index
During May, the heat index is evaluated at a tropical 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in May is 75%.Rainfall
In Charleston, in May, during 10.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Charleston, Mississippi, during the entire year, the rain falls for 113.7 days and collects up to 13.27" (337mm) of precipitation.Snowfall
March through October are months without snowfall.Daylight
In Charleston, the average length of the day in May is 13h and 56min.On the first day of May, sunrise is at 6:10 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:06 pm CDT.
Sunshine
In Charleston, Mississippi, the average sunshine in May is 9.6h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, the UV index of 6 transforms into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Charleston?
What is the average humidity in May in Charleston?
How much does it rain in Charleston in May?
When it does not snow in Charleston?
What is the average length of the day in May in Charleston?
When are sunrise and sunset in May in Charleston?
How long on average sun shines in May in Charleston?
What is the UV index intensity in May in Charleston?
Average temperature in May
Charleston, MS
- Average high temperature in May: 81.1°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in May: 62.8°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (35.6°F).
Average pressure in May
Charleston, MS
- 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, MS
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is February (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Charleston, MS
- Average humidity in May: 75%
The months with the highest relative humidity are February, March and December (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in May
Charleston, MS
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is July (1.57").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in May
Charleston, MS
- Average rainfall days in May: 10.2 days
The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is November (5.3 days).
Average snowfall in May
Charleston, MS
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in May
Charleston, MS
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Charleston, MS
- Average daylight in May: 13h and 5min
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 May: 9h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Charleston, MS
- Average sunshine days in May: 19.3 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in May
Charleston, MS
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in May
Charleston, MS
- Average cloud cover in May: 33
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 28).
Average visibility in May
Charleston, MS
- 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, Mississippi, USA
Weather forecast for your location
2. Allow the app to use your location