Black Diamond Washington Climate Data

Monthly Average Climate Data for Black Diamond Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January33.9 °F45.2 °F7.09 in.
February33.9 °F47.9 °F5.14 in.
March35.9 °F52.1 °F5.98 in.
April39.1 °F57.3 °F5.13 in.
May44.8 °F64.6 °F3.71 in.
June48.9 °F68.8 °F3.25 in.
July52.7 °F75.6 °F1.27 in.
August53.0 °F76.6 °F1.56 in.
September48.8 °F70.3 °F2.63 in.
October42.5 °F59.2 °F5.44 in.
November37.2 °F49.8 °F7.87 in.
December33.3 °F44.1 °F6.95 in.
Annual42 °F59.3 °F56.02 in.

Climate Data for Black Diamond Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8b : 15°F to 20°F
Plant Hardiness Zone - 2012Zone 8b : 15°F to 20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfb - Temperate Oceanic Climate