Markham Washington Climate Data

Monthly Average Climate Data for Markham Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.9 °C9.1 °C320.55 mm
February3.4 °C10.2 °C191.52 mm
March4.2 °C11.4 °C236.22 mm
April5.7 °C13.3 °C160.27 mm
May8.1 °C15.7 °C85.6 mm
June10.2 °C17.6 °C63.25 mm
July11.8 °C19.4 °C26.92 mm
August11.8 °C20.1 °C39.88 mm
September10.6 °C19.6 °C71.88 mm
October7.8 °C15.7 °C207.52 mm
November5.2 °C11.4 °C315.98 mm
December3.4 °C8.8 °C318.77 mm
Annual7.2 °C14.4 °C2038.36 mm

Climate Data for Markham Washington

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 9a : -6.7°C to -3.9°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate