May weather forecastWallis, MS
May
Weather in May
The last month of the spring, May, is another warm month in Wallis, Mississippi, with an average temperature fluctuating between 84.7°F (29.3°C) and 64°F (17.8°C).Temperature
As Wallis transitions into May, the average high-temperature is observed to slightly rise from a warm 78.1°F (25.6°C) in April to a still moderately hot 84.7°F (29.3°C). May brings Wallis a consistent average low-temperature of 64°F (17.8°C).Heat index
The heat index value during May is calculated to be a tropical 93.2°F (34°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
The average relative humidity in May is 74%.Rainfall
In May, the rain falls for 13.6 days. Throughout May, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 172.1 rainfall days, and 35.75" (908mm) of precipitation is accumulated.Snowfall
In Wallis, snow does not fall in April through November.Daylight
In May, the average length of the day is 13h and 45min.On the first day of May, sunrise is at 6:11 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 7:55 pm CDT.
Sunshine
The average sunshine in May is 9.9h.UV index
In Wallis, Mississippi, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Wallis, MS
- Average high temperature in May: 84.7°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (57.4°F).
- Average low temperature in May: 64°F
The month with the highest average low temperature is August (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in May
Wallis, MS
- Average pressure in May: 30"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
Wallis, MS
- Average wind speed in May: 5.5mph
The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest month (with the lowest average wind speed) is July (4.4mph).
Average humidity in May
Wallis, MS
- Average humidity in May: 74%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Wallis, MS
- Average rainfall in May: 2.87"
The wettest months (with the highest rainfall) are July and August (4.37").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in May
Wallis, MS
- Average rainfall days in May: 13.6 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Wallis, MS
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Wallis, MS
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.4 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
Wallis, MS
- Average daylight in May: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in May: 9h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in May
Wallis, MS
- Average sunshine days in May: 15.9 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (6.8 days).
Average UV index in May
Wallis, MS
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Wallis, MS
- Average cloud cover in May: 37
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in May
Wallis, MS
- Average visibility in May: 5mi
The months with the highest visibility are June, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September and December (5mi).





