Portland Arkansas Climate Data

Monthly Average Climate Data for Portland Arkansas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January33.6 °F53.7 °F5.8 in.
February36.9 °F58.3 °F5.64 in.
March44.5 °F66.6 °F5.45 in.
April53.0 °F75.4 °F5.89 in.
May62.0 °F83.2 °F5.01 in.
June69.5 °F89.9 °F3.55 in.
July72.3 °F92.2 °F4.26 in.
August70.8 °F92.3 °F4.16 in.
September64.0 °F88.0 °F3.46 in.
October52.2 °F77.9 °F4.29 in.
November42.3 °F65.4 °F4.22 in.
December36.5 °F56.1 °F5.6 in.
Annual53.1 °F74.9 °F57.33 in.

Climate Data for Portland Arkansas

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateMar. 21 - Mar. 31
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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