May weather forecastTomball, TX
May
Weather in May
May, the last month of the spring in Tomball, is a hot month, with an average temperature fluctuating between 68.5°F (20.3°C) and 86.4°F (30.2°C).Temperature
May showcases a minor temperature ascent, adjusting from April's moderately hot 79.3°F (26.3°C) to a tropical 86.4°F (30.2°C). May nights are marked by an average temperature drop to a pleasant 68.5°F (20.3°C).Heat index
Throughout May, the heat index is calculated to be a torrid 96.8°F (36°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are essentially critical for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. 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. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
The average relative humidity in May is 73%.Rainfall
May is the month with the most rainfall in Tomball. Rain falls for 15.2 days and accumulates 4.72" (120mm) of precipitation.Snowfall
In Tomball, snow does not fall in February through November.Daylight
In Tomball, Texas, the average length of the day in May is 13h and 41min.On the first day of May, sunrise is at 6:38 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:18 pm CDT.
Sunshine
In Tomball, the average sunshine in May is 8.7h.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 unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 7 suggests this advice:
Shun overexposure. Protection from sun ravages is indispensable. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. 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
Average temperature in May
Tomball, TX
- Average high temperature in May: 86.4°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 (60.4°F).
- Average low temperature in May: 68.5°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in May
Tomball, TX
- Average pressure in May: 29.95"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
Tomball, TX
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest month (with the lowest average wind speed) is September (5.6mph).
Average humidity in May
Tomball, TX
- Average humidity in May: 73%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Tomball, TX
- Average rainfall in May: 4.72"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in May
Tomball, TX
- Average rainfall days in May: 15.2 days
The month with the highest number of rainy days is September (18.8 days).
The month with the least rainy days is January (11.7 days).
Average snowfall in May
Tomball, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Tomball, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Tomball, TX
- 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: 8h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in May
Tomball, TX
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is September (9.2 days).
Average UV index in May
Tomball, TX
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Tomball, TX
- Average cloud cover in May: 43
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Tomball, TX
- Average visibility in May: 6mi
The months with the highest visibility are January, February, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are March, April and July (5mi).
