Rainier Oregon Climate Data

Monthly Average Climate Data for Rainier Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January2.1 °C8.1 °C168.15 mm
February1.7 °C10.1 °C108.46 mm
March3.2 °C12.7 °C128.52 mm
April4.9 °C15.1 °C107.19 mm
May7.9 °C18.8 °C60.2 mm
June10.3 °C21.1 °C45.21 mm
July12.4 °C24.7 °C11.18 mm
August12.4 °C25.4 °C17.02 mm
September10.1 °C22.9 °C57.15 mm
October6.8 °C16.7 °C109.22 mm
November3.9 °C11.2 °C167.64 mm
December1.8 °C7.7 °C186.18 mm
Annual6.5 °C16.2 °C1166.12 mm

Climate Data for Rainier Oregon

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost50-75 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 ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate
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