Happy Valley Oregon Climate Data

Monthly Average Climate Data for Happy Valley Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.7 °C7.7 °C170.18 mm
February1.9 °C9.7 °C121.67 mm
March3.1 °C12.4 °C140.46 mm
April4.7 °C15.7 °C104.9 mm
May7.4 °C19.9 °C88.14 mm
June9.8 °C22.7 °C58.67 mm
July11.8 °C27.2 °C15.49 mm
August12.1 °C27.6 °C14.48 mm
September10.1 °C24.1 °C50.04 mm
October6.9 °C17.2 °C120.4 mm
November3.9 °C10.9 °C179.58 mm
December1.5 °C7.3 °C189.99 mm
Annual6.2 °C16.9 °C1254 mm

Climate Data for Happy Valley Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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