May weather forecastLongview, TX
May
Weather in May
As summer approaches Longview, May presents noticeably warmer temperatures, and the volume of rainfall begins to decrease. Despite the reduction in rain, humidity remains relatively high, still lingering around 74%. May is distinct for its long daylight hours, with the city receiving an average of 13.8 hours a day. Outdoor activities become increasingly enjoyable due to the extended sunshine hours.Temperature
Longview's weather shows a minor temperature rise with the arrival of May, moving from a warm 76.1°F (24.5°C) in April to a still moderately hot 84.6°F (29.2°C). During May, the nighttime temperature averages of 63.3°F (17.4°C).Heat index
The heat index in May is estimated at a hot 93.2°F (34°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In May, the average relative humidity is 74%.Rainfall
In Longview, during May, the rain falls for 14.2 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Longview, during the entire year, the rain falls for 145.4 days and collects up to 30.91" (785mm) of precipitation.Snowfall
In Longview, snow does not fall in April through December.Daylight
The average length of the day in May is 13h and 50min.On the first day of May, sunrise is at 6:31 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:21 pm CDT.
Sunshine
In May, the average sunshine is 9h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, the UV index of 7 transforms into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Longview, TX
- Average high temperature in May: 84.6°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54.3°F).
- Average low temperature in May: 63.3°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in May
Longview, TX
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Longview, TX
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in May
Longview, TX
- Average humidity in May: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (65%).
Average rainfall in May
Longview, TX
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in May
Longview, TX
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in May
Longview, TX
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Longview, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Longview, TX
- Average daylight in May: 13h and 48min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in May
Longview, TX
- Average sunshine days in May: 14 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in May
Longview, TX
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in May
Longview, TX
- Average cloud cover in May: 38
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Longview, TX
- Average visibility in May: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
