Morton Washington Climate Data

Monthly Average Climate Data for Morton Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January31.9 °F44.4 °F10.28 in.
February32.1 °F48.0 °F6.9 in.
March34.2 °F52.4 °F7.63 in.
April37.2 °F58.0 °F5.86 in.
May42.7 °F65.7 °F4.3 in.
June47.1 °F71.1 °F3.09 in.
July50.2 °F77.7 °F0.9 in.
August49.8 °F79.2 °F1.15 in.
September45.4 °F73.2 °F2.77 in.
October39.3 °F62.0 °F6.53 in.
November34.7 °F50.0 °F10.53 in.
December31.3 °F43.6 °F10.22 in.
Annual39.7 °F60.4 °F70.16 in.

Climate Data for Morton Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 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