Portsmouth Virginia Climate Data

Monthly Average Climate Data for Portsmouth Virginia

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January0.8 °C10.4 °C90.42 mm
February1.5 °C11.8 °C71.88 mm
March5.1 °C15.4 °C100.84 mm
April10.2 °C20.8 °C91.69 mm
May15.1 °C24.9 °C107.44 mm
June19.8 °C29 °C121.67 mm
July22.3 °C31.4 °C136.14 mm
August21.6 °C30.3 °C144.27 mm
September18.9 °C27.3 °C136.65 mm
October12.6 °C22.1 °C105.66 mm
November6.6 °C16.8 °C85.6 mm
December3 °C12.5 °C90.93 mm
Annual11.5 °C21.1 °C1283.19 mm

Climate Data for Portsmouth Virginia

Average First Frost DateNov. 21 - Nov. 30
Average Last Frost DateApr. 1 - Apr. 10
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8a : -12.2°C to -9.4°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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