Waterloo Oregon Climate Data

Monthly Average Climate Data for Waterloo Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1.7 °C8.7 °C158.5 mm
February1.8 °C10.8 °C122.43 mm
March3.1 °C13.3 °C133.6 mm
April4.7 °C16.1 °C104.9 mm
May7.3 °C19.9 °C72.9 mm
June9.7 °C22.9 °C49.28 mm
July11.7 °C28.5 °C10.16 mm
August11.4 °C28.9 °C12.95 mm
September9.3 °C25.4 °C43.69 mm
October6.2 °C18.3 °C99.31 mm
November3.7 °C11.6 °C164.85 mm
December1.6 °C8.1 °C180.34 mm
Annual6 °C17.7 °C1152.91 mm

Climate Data for Waterloo Oregon

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
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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