Annex Oregon Climate Data

Monthly Average Climate Data for Annex Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.3 °C2.7 °C44.45 mm
February-3.2 °C7.4 °C31.75 mm
March0.3 °C13.7 °C31.5 mm
April3.2 °C18.1 °C23.88 mm
May7.8 °C23.4 °C30.48 mm
June11.6 °C28.1 °C24.38 mm
July15.6 °C34.2 °C7.11 mm
August14 °C33.3 °C4.32 mm
September8.9 °C27.4 °C9.4 mm
October2.8 °C18.9 °C18.8 mm
November-1.9 °C9.6 °C33.53 mm
December-5 °C3.4 °C53.09 mm
Annual4.1 °C18.4 °C312.69 mm

Climate Data for Annex Oregon

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate
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