Siletz Oregon Climate Data

Monthly Average Climate Data for Siletz Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.8 °F51.2 °F11.73 in.
February39.1 °F52.9 °F8.0 in.
March40.0 °F53.9 °F8.64 in.
April41.9 °F59.6 °F5.92 in.
May45.8 °F64.5 °F3.86 in.
June49.2 °F67.8 °F2.7 in.
July51.6 °F72.4 °F0.72 in.
August51.5 °F74.2 °F1.1 in.
September49.9 °F72.4 °F2.28 in.
October46.3 °F63.3 °F6.1 in.
November42.6 °F54.9 °F11.25 in.
December39.2 °F50.1 °F12.68 in.
Annual44.7 °F61.4 °F74.98 in.

Climate Data for Siletz Oregon

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost30-40 Days
Plant Hardiness Zone - 2023Zone 9b : 25°F to 20°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate