Bremerton Washington Climate Data

Monthly Average Climate Data for Bremerton Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.4 °F47.3 °F7.56 in.
February36.3 °F49.8 °F4.48 in.
March38.7 °F54.0 °F5.17 in.
April41.8 °F59.0 °F3.17 in.
May47.1 °F65.2 °F2.09 in.
June51.4 °F69.1 °F1.51 in.
July54.9 °F75.5 °F0.77 in.
August55.1 °F76.4 °F1.0 in.
September51.5 °F70.9 °F1.79 in.
October45.4 °F60.2 °F4.45 in.
November39.8 °F51.7 °F7.46 in.
December36.2 °F46.4 °F8.07 in.
Annual44.6 °F60.5 °F47.52 in.

Climate Data for Bremerton Washington

Average First Frost DateNov. 11 - Nov. 20
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost30-40 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