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San Juan, Texas, United States has a subtropical climate with hot summers and mild winters. The average high temperature in the summer is around 93°F, while the average low temperature is around 69°F. The hottest month is July, when the average high temperature is 97°F and the average low temperature is 74°F.
The winter months of December, January, and February are mild in San Juan, Texas, United States with average highs of 66°F and average lows of 41°F. The coldest month is January, when the average high temperature is 63°F and the average low temperature is 37°F.
Rainfall is fairly consistent throughout the year with an average of about 2.5 inches per month. May tends to be the wettest month with an average of 3.5 inches of rain. Snowfall is rare in San Juan, Texas, United States with an average of only 0.1 inches per year.
As of 2020, the city population is 36759.
This map shows the current & 7-day weather forecast, weather alerts, and weather radar for San Juan, Texas.