Montesano Washington Climate Data

Monthly Average Climate Data for Montesano Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January36.3 °F47.4 °F12.72 in.
February35.3 °F50.0 °F6.44 in.
March37.0 °F53.7 °F9.46 in.
April39.5 °F57.6 °F6.37 in.
May44.6 °F63.5 °F3.32 in.
June48.7 °F67.2 °F2.57 in.
July52.1 °F72.6 °F0.98 in.
August51.9 °F76.8 °F1.51 in.
September48.7 °F70.5 °F3.01 in.
October43.1 °F60.5 °F8.03 in.
November38.1 °F51.8 °F11.36 in.
December35.3 °F46.4 °F12.61 in.
Annual42.6 °F59.8 °F78.38 in.

Climate Data for Montesano 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