Weather By Day

May Weather In San Antonio  
May San Antonio Weather
Record High: 104°F
Normal High: 86°F
Normal Low: 66°F
Record Low: 43°F
Avg Monthly Rain: 4.72"
Rec 1 Day Rain: 6.26"

San Antonio Weather In May

In the last 69 years the highest measured temperature in San Antonio Texas for May was 104 degrees Fahrenheit, on May 31, 2004, while the regular high temperature is 86. In the last 69 years the highest reported temperature in San Antonio for May was 43 most recently registered on May 9, 1984, while the average low temperature is 66.

US National Weather Service San Antonio May Weather data records that on May 13, 1953, the high temperature did not exceed 58 degrees Fahrenheit, the lowest high measured in San Antonio in the past 69 years. Weather Service data also shows that on May 30, 2004, the lowest recorded temperature for the day did not drop below 79 degrees, the highest low measured temperature in San Antonio in the last 69 years.

NWS data indicates that the daily high temperature in San Antonio on May First averages 83 degrees Fahrenheit and the high on the last day of May averages 90 degrees. The average recorded low temperature in San Antonio on May First is 62 degrees Fahrenheit and the average low on the last day of May is 69 degrees.

San Antonio typically receives an average of 4.72 inches of precipitation during the month. The most precipitation recorded on a single day in May, according to May San Antonio Weather data, was 6.26 inches on May 28, 1993.