Lyman Washington Climate Data

Monthly Average Climate Data for Lyman Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.0 °F44.8 °F5.93 in.
February34.2 °F47.8 °F3.81 in.
March36.7 °F52.5 °F4.87 in.
April40.4 °F59.2 °F3.58 in.
May45.6 °F65.9 °F3.02 in.
June49.8 °F69.7 °F2.29 in.
July52.3 °F76.1 °F1.2 in.
August52.3 °F77.0 °F1.31 in.
September48.6 °F71.6 °F2.42 in.
October42.7 °F60.5 °F4.92 in.
November37.8 °F49.9 °F7.73 in.
December33.9 °F44.1 °F5.62 in.
Annual42.4 °F59.9 °F46.7 in.

Climate Data for Lyman Washington

Average First Frost DateNov. 1 - Nov. 10
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 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate