Annex Oregon Climate Data

Monthly Average Climate Data for Annex Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.5 °F36.9 °F1.75 in.
February26.2 °F45.4 °F1.25 in.
March32.5 °F56.6 °F1.24 in.
April37.7 °F64.5 °F0.94 in.
May46.1 °F74.2 °F1.2 in.
June52.8 °F82.5 °F0.96 in.
July60.0 °F93.5 °F0.28 in.
August57.2 °F92.0 °F0.17 in.
September48.0 °F81.3 °F0.37 in.
October37.1 °F66.0 °F0.74 in.
November28.6 °F49.3 °F1.32 in.
December23.0 °F38.2 °F2.09 in.
Annual39.3 °F65 °F12.31 in.

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 : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationBSk - Cold Semi-Arid Climate