Coos Bay Oregon Climate Data

Monthly Average Climate Data for Coos Bay Oregon

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January4.4 °C11.8 °C249.17 mm
February4.3 °C12.3 °C191.01 mm
March4.8 °C12.8 °C196.85 mm
April5.9 °C14.1 °C141.99 mm
May8.1 °C16 °C90.68 mm
June10.1 °C17.9 °C48.77 mm
July11.3 °C18.9 °C10.41 mm
August11.2 °C19.7 °C12.45 mm
September9.9 °C19.7 °C42.93 mm
October8.1 °C17.3 °C117.09 mm
November5.8 °C13.8 °C218.44 mm
December4.2 °C11.4 °C296.42 mm
Annual7.3 °C15.5 °C1616.21 mm

Climate Data for Coos Bay Oregon

Average First Frost DateDec. 1 - Dec. 10
Average Last Frost DateMar. 11 - Mar. 20
Average Days With Frost10-20 Days
Plant Hardiness Zone - 2023Zone 9b : -3.9°C to -1.1°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate