Portland Tennessee Climate Data

Monthly Average Climate Data for Portland Tennessee

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January27.1 °F44.5 °F4.31 in.
February30.1 °F49.3 °F4.53 in.
March37.9 °F58.3 °F5.06 in.
April46.7 °F68.8 °F4.85 in.
May57.1 °F76.8 °F5.6 in.
June64.8 °F84.4 °F4.57 in.
July68.2 °F87.6 °F4.69 in.
August66.7 °F87.1 °F3.64 in.
September59.6 °F81.4 °F3.69 in.
October48.1 °F70.5 °F3.68 in.
November37.7 °F58.0 °F3.78 in.
December31.4 °F48.2 °F5.04 in.
Annual48 °F67.9 °F53.44 in.

Climate Data for Portland Tennessee

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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