Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With the start of May, the average high-temperature marginally shifts from April's 78.8°F (26°C) to a still moderately hot 85.8°F (29.9°C). Willis's temperature lowers to a mean of 66.4°F (19.1°C) during the nights in May.Heat index
The heat index for May is calculated to be a fiery hot 96.8°F (36°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.Note that heat index values are valued for light wind and location in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Willis, the average relative humidity in May is 75%.Rainfall
May is the month with the most rainfall in Willis. Rain falls for 15 days and accumulates 4.02" (102mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In May, the average length of the day is 13h and 42min.On the first day of May in Willis, sunrise is at 6:37 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 8:19 pm CDT.
Sunshine
In Willis, the average sunshine in May is 8.8h.UV index
In Willis, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
How hot does it get in Willis in May?
What is the average humidity in May in Willis?
What is the rainiest month in Willis?
How many days does it rain in May in Willis?
When it does not snow in Willis?
How many hours of daylight does Willis have in May?
What time are sunrise and sunset in May in Willis?
How many hours of sunshine does Willis have in May?
What is the UV index reading in May in Willis?
Average temperature in May
Willis, TX
- Average high temperature in May: 85.8°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in May: 66.4°F
The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in May
Willis, 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
Willis, TX
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).
Average humidity in May
Willis, TX
- Average humidity in May: 75%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (69%).
Average rainfall in May
Willis, TX
- Average rainfall in May: 4.02"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in May
Willis, TX
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is September (18.2 days).
The months with the least rainy days are January and October (12.1 days).
Average snowfall in May
Willis, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Willis, 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 March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Willis, TX
- Average daylight in May: 13h and 4min
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 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
Willis, TX
- Average sunshine days in May: 14.2 days
The months with the most sunshine days are January and October (16.6 days).
The month with the least sunshine days is September (9.9 days).
Average UV index in May
Willis, TX
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Willis, 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
Willis, TX
- Average visibility in May: 5mi
The months with the highest visibility are January, August and October (6mi).
The months with the lowest visibility are February, March, April, May, June, July, September, November and December (5mi).
Willis, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
