San Juan Texas Climate Data

Monthly Average Climate Data for San Juan Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January49.5 °F71.0 °F0.83 in.
February53.5 °F75.5 °F0.99 in.
March59.2 °F80.8 °F1.17 in.
April65.0 °F86.4 °F1.38 in.
May71.3 °F91.0 °F2.29 in.
June75.2 °F95.4 °F2.5 in.
July76.2 °F96.7 °F2.26 in.
August76.3 °F97.9 °F1.6 in.
September73.0 °F92.7 °F4.74 in.
October65.9 °F87.7 °F2.35 in.
November57.5 °F79.4 °F1.25 in.
December50.9 °F72.4 °F0.89 in.
Annual64.5 °F85.6 °F22.25 in.

Climate Data for San Juan Texas

Average First Frost DateFrost Rare
Average Last Frost DateJan. 21 - Jan. 31
Average Days With FrostFrost Rare
Plant Hardiness Zone - 2023Zone 10a : 30°F to 25°F
Plant Hardiness Zone - 2012Zone 9b : 25°F to 20°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationBSh - Hot Semi-Arid Climate