Monroe Washington Climate Data

Monthly Average Climate Data for Monroe Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January34.9 °F46.7 °F6.52 in.
February34.9 °F49.7 °F4.52 in.
March37.3 °F53.7 °F5.24 in.
April41.0 °F58.8 °F4.37 in.
May46.2 °F65.4 °F3.23 in.
June50.5 °F69.5 °F2.65 in.
July53.5 °F75.6 °F1.18 in.
August53.5 °F76.5 °F1.18 in.
September49.7 °F70.8 °F2.67 in.
October43.7 °F60.0 °F4.87 in.
November38.3 °F51.3 °F7.34 in.
December34.6 °F45.8 °F6.97 in.
Annual43.2 °F60.3 °F50.74 in.

Climate Data for Monroe Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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 ClassificationCsb - Warm-Summer Mediterranean Climate