San Antonio - Recent May Temperatures and Rainfall





The numbers here describe what the May weather in San Antonio, Texas was like for every year since 2010. A series of tables gives May data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot days occurred each May. Then there's information on how much rain actually landed this month during recent years, as well as how often San Antonio had wet weather.

The climate data come from weather measurements made at San Antonio's International Airport.

Temperature Weather iconTemperature

May temperature averages by year in San Antonio
High °F Low °F Year High °C Low °C
91 67 2020 33 19
86 69 2019 30 20
92 69 2018 33 21
86 65 2017 30 18
84 67 2016 29 19
84 68 2015 29 20
87 65 2014 31 18
87 65 2013 30 18
88 68 2012 31 20
90 68 2011 32 20
87 68 2010 31 20
Number of days in May when the temperature in San Antonio rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2020 31 18
2019 30 11
2018 31 22
2017 31 9
2016 31 4
2015 31 2
2014 30 12
2013 31 13
2012 31 15
2011 30 20
2010 31 10

Rainy Weather iconRain

This table gives the total precipitation that fell on San Antonio during May in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for May in San Antonio
Days Year Inches Milli­metres
11 2020 5.8 148
13 2019 3.3 84
3 2018 1.0 25
9 2017 1.8 45
13 2016 9.2 232
15 2015 8.6 218
8 2014 5.0 126
6 2013 13.2 335
9 2012 9.8 250
1 2011 0.8 21
5 2010 4.5 114
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

San Antonio - Recent Years
San Antonio - Extremes
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