May weather forecastMathis, TX
May
Weather in May
May, the last month of the spring in Mathis, is a tropical month, with an average temperature fluctuating between 70.5°F (21.4°C) and 86.5°F (30.3°C).Temperature
Mathis's entry into May measures an average high-temperature of a tropical 86.5°F (30.3°C), closely parallel to the preceding month. The average temperature during May nights dips to an agreeable 70.5°F (21.4°C).Heat index
May's heat index is computed to be a fiery hot 98.6°F (37°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Realize that the values for the heat index are set for shaded places and light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
With an average relative humidity of 75%, May is the most humid month.Rainfall
In Mathis, in May, it is raining for 13.3 days, with typically 1.69" (43mm) of accumulated precipitation. In Mathis, during the entire year, the rain falls for 139.6 days and collects up to 17.4" (442mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in May is 13h and 33min.On the first day of May in Mathis, sunrise is at 6:50 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:23 pm CDT.
Sunshine
The average sunshine in May is 9.2h.UV index
In May, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 7 in May interprets into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mathis, TX
- Average high temperature in May: 86.5°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (64.4°F).
- Average low temperature in May: 70.5°F
The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).
Average pressure in May
Mathis, TX
- Average pressure in May: 29.89"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Mathis, TX
- Average wind speed in May: 10.7mph
The windiest month (with the highest average wind speed) is May (10.7mph).
The calmest month (with the lowest average wind speed) is September (8mph).
Average humidity in May
Mathis, TX
- Average humidity in May: 75%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (65%).
Average rainfall in May
Mathis, TX
- Average rainfall in May: 1.69"
The wettest month (with the highest rainfall) is September (2.48").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in May
Mathis, TX
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is September (17.1 days).
The months with the least rainy days are July and August (8.3 days).
Average snowfall in May
Mathis, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Mathis, TX
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.1 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Mathis, TX
- Average daylight in May: 13h and 36min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 9h and 12min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
Mathis, TX
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is July (20.9 days).
The month with the least sunshine days is September (10.9 days).
Average UV index in May
Mathis, TX
- Average UV index in May: 7
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Mathis, TX
- Average cloud cover in May: 39
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Mathis, TX
- 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).





