Portland Texas Climate Data

Monthly Average Climate Data for Portland Texas

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January9.5 °C18.4 °C43.94 mm
February11.7 °C20.2 °C40.89 mm
March15.3 °C22.9 °C59.69 mm
April18.6 °C25.7 °C46.23 mm
May22.6 °C28.7 °C84.07 mm
June25.3 °C31.2 °C88.14 mm
July25.9 °C31.9 °C69.09 mm
August25.8 °C32.6 °C67.31 mm
September23.9 °C31.2 °C142.75 mm
October20.1 °C28.1 °C88.65 mm
November14.7 °C23.4 °C56.13 mm
December10.5 °C19.7 °C48.77 mm
Annual18.7 °C26.2 °C835.66 mm

Climate Data for Portland Texas

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateFeb. 11 - Feb. 20
Average Days With Frost5-10 Days
Plant Hardiness Zone - 2023Zone 10a : -1.1°C to 1.7°C
Plant Hardiness Zone - 2012Zone 9b : -3.9°C to -1.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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