May weather forecastHillister, TX
May
Weather in May
May, the last month of the spring in Hillister, is a hot month, with an average temperature varying between 65.1°F (18.4°C) and 86.4°F (30.2°C).Temperature
As Hillister transitions into May, a marginal rise in the average high-temperature is observed, moving from a moderately hot 78.4°F (25.8°C) in April to a tropical 86.4°F (30.2°C). In Hillister, the May nights cool down to an average low of 65.1°F (18.4°C).Heat index
The average heat index in May is computed to be a fiery hot 98.6°F (37°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in May in Hillister is 76%.Rainfall
May is the month with the most rainfall in Hillister, Texas. Rain falls for 14.3 days and accumulates 4.13" (105mm) of precipitation.Snowfall
March through November are months without snowfall in Hillister.Daylight
In Hillister, the average length of the day in May is 13h and 43min.On the first day of May in Hillister, sunrise is at 6:32 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:15 pm CDT.
Sunshine
In Hillister, the average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 6 during May translates into the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hillister, TX
- Average high temperature in May: 86.4°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 (57.9°F).
- Average low temperature in May: 65.1°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in May
Hillister, 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
Hillister, TX
- Average wind speed in May: 5.7mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in May
Hillister, TX
- Average humidity in May: 76%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in May
Hillister, TX
- Average rainfall in May: 4.13"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in May
Hillister, TX
- Average rainfall days in May: 14.3 days
The month with the highest number of rainy days is August (17.8 days).
The months with the least rainy days are January and November (11.4 days).
Average snowfall in May
Hillister, TX
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Hillister, TX
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.7 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
Hillister, 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 54min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in May
Hillister, TX
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
Hillister, TX
- 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
Hillister, TX
- Average cloud cover in May: 44
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are August and October (Cloud cover 36).
Average visibility in May
Hillister, TX
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).





