Annual Weather Averages Near Fort Sam

Fort Sam Houston, Texas - Weather Averages

Fort Sam Houston, Texas has a humid subtropical climate with hot, humid summers and mild winters. The average annual temperature is 69.5 degrees Fahrenheit. The average annual precipitation is 34.8 inches. The average annual snowfall is 1.5 inches.

Summer

The summer months in Fort Sam Houston are hot and humid. The average high temperature in July is 94 degrees Fahrenheit. The average low temperature in July is 76 degrees Fahrenheit. The average relative humidity in July is 77%. The average precipitation in July is 4.1 inches.

Winter

The winter months in Fort Sam Houston are mild. The average high temperature in January is 56 degrees Fahrenheit. The average low temperature in January is 38 degrees Fahrenheit. The average relative humidity in January is 66%. The average precipitation in January is 2.5 inches.

Spring and Fall

The spring and fall months in Fort Sam Houston are mild and pleasant. The average high temperature in April is 78 degrees Fahrenheit. The average low temperature in April is 54 degrees Fahrenheit. The average relative humidity in April is 68%. The average precipitation in April is 3.3 inches.

The average high temperature in October is 75 degrees Fahrenheit. The average low temperature in October is 50 degrees Fahrenheit. The average relative humidity in October is 65%. The average precipitation in October is 3.1 inches.