May weather forecastWilliamsburg, MS

May

Weather in May

The last month of the spring, May, is also a moderately hot month in Williamsburg, Mississippi, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 63.1°F (17.3°C).

Temperature

Williamsburg's transition into May is marked by a minor temperature shift, moving from a warm 77.4°F (25.2°C) in April to a still moderately hot 83.8°F (28.8°C). During May nights, Williamsburg witnesses a consistent average temperature of 63.1°F (17.3°C).

Heat index

During May, the heat index is appraised at a hot 91.4°F (33°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in May is 75%.

Rainfall

In Williamsburg, in May, during 13.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, there are 168 rainfall days, and 34.17" (868mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in May is 13h and 47min.
On the first day of the month, sunrise is at 6:12 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:54 am and sunset at 7:58 pm CDT.

Sunshine

In Williamsburg, the average sunshine in May is 9.8h.

UV index

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 6 during May translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.

Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in May, in Williamsburg, is 83.8°F (28.8°C), while the low-temperature averages to 63.1°F (17.3°C). In May, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 91.4°F (33°C).

The average relative humidity in May in Williamsburg, Mississippi, is 75%.

In Williamsburg, Mississippi, in May, during 13.7 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

In Williamsburg, snow does not fall in April through November.

In Williamsburg, the average day length in May is 13h and 47min.

On the first day of May, sunrise is at 6:12 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:58 pm CDT.

The average sunshine duration in May is 9.8h.

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

77.4°F

83.8°F

90.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.8mph

6.2mph

5.4mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

12.2

13.7

16.1

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.9

11.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Williamsburg, MS

Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (55.9°F).

Average low temperature in May: 63.1°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (39°F).

Average pressure in May
Williamsburg, MS

Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

Average wind speed in May
Williamsburg, MS

Average wind speed in May: 5.8mph

The windiest months (with the highest average wind speed) are January, February and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in May
Williamsburg, MS

Average humidity in May: 75%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Williamsburg, MS

Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is November (2.01").

Average rainfall days in May
Williamsburg, MS

Average rainfall days in May: 13.7 days

The month with the highest number of rainy days is August (20.3 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in May
Williamsburg, MS

Average snowfall in May: 0"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Williamsburg, MS

Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Williamsburg, MS

Average daylight in May: 13h and 48min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

Average sunshine in May: 9h and 48min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

Average sunshine days in May
Williamsburg, MS

Average sunshine days in May: 15.9 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is August (9 days).

Average UV index in May
Williamsburg, 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 and December (UV index 3).

Average cloud cover in May
Williamsburg, MS

Average cloud cover in May: 36

The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Williamsburg, MS

Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).