Prospect Oregon Climate Data

Monthly Average Climate Data for Prospect Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January29.0 °F46.3 °F6.34 in.
February29.5 °F50.3 °F3.9 in.
March31.6 °F54.5 °F4.65 in.
April34.6 °F58.4 °F3.96 in.
May40.1 °F67.4 °F2.65 in.
June44.4 °F74.7 °F1.49 in.
July49.9 °F85.6 °F0.62 in.
August48.8 °F85.9 °F0.6 in.
September43.4 °F79.9 °F1.02 in.
October36.8 °F66.0 °F2.99 in.
November32.4 °F51.8 °F6.18 in.
December28.8 °F44.9 °F7.64 in.
Annual37.4 °F63.8 °F42.04 in.

Climate Data for Prospect Oregon

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate