Winston Oregon Climate Data

Monthly Average Climate Data for Winston Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January35.5 °F49.5 °F4.73 in.
February36.0 °F53.9 °F4.19 in.
March37.6 °F58.8 °F3.74 in.
April40.4 °F63.3 °F2.47 in.
May45.4 °F70.9 °F1.93 in.
June50.1 °F77.6 °F0.99 in.
July54.4 °F86.1 °F0.23 in.
August53.8 °F86.9 °F0.33 in.
September49.0 °F81.2 °F0.89 in.
October43.0 °F67.6 °F2.37 in.
November39.5 °F54.9 °F5.04 in.
December35.5 °F47.8 °F6.69 in.
Annual43.4 °F66.5 °F33.6 in.

Climate Data for Winston Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 9a : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate