Mertens Texas Climate Data

Monthly Average Climate Data for Mertens Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.6 °F57.7 °F2.86 in.
February39.3 °F61.8 °F2.93 in.
March46.6 °F68.8 °F3.56 in.
April53.7 °F76.4 °F3.55 in.
May63.1 °F83.6 °F4.49 in.
June70.6 °F91.2 °F3.95 in.
July73.5 °F95.5 °F1.78 in.
August73.2 °F96.3 °F2.42 in.
September66.5 °F89.9 °F3.31 in.
October55.7 °F79.8 °F4.68 in.
November45.4 °F67.9 °F2.95 in.
December37.5 °F59.4 °F3.02 in.
Annual55.1 °F77.4 °F39.5 in.

Climate Data for Mertens Texas

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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