Galveston Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is in Galveston, Texas during each month of the year.
The average high and low temperatures are listed below monthly and annually for the city, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Galveston, scroll down farther. There are also monthly and yearly counts of days with cold weather.
All the numbers are long-term historical averages based on climate data gathered from 1981 to 2010.
|High °F||Low °F||High °C||Low °C|
Days of Hot Weather in Galveston
Summer days heat up to at least 80 °F at Galveston with about one-third of those making it into the 90s.
But temperatures over 100 °F (38 °C) are unusual at this Gulf coast city. Only about once or twice a decade does the thermometer climb into the 100s. Temperatures that hot are most likely to occur in August.
How Often Galveston Has Cold Temperatures
Galveston's winters are mild, typically with only five nights cooling down to below freezing. It's also unusual for the thermometer to go any lower than 20 °F (-8 °C). Temperatures that cold happen only once every few years.
No matter how cold it gets at night, everything here thaws out here during the day. With the exception of one day a decade when the thermometer doesn't rise above 32 °F.
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.