Markham Washington Climate Data

Monthly Average Climate Data for Markham Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January39.0 °F48.3 °F12.62 in.
February38.1 °F50.4 °F7.54 in.
March39.6 °F52.6 °F9.3 in.
April42.2 °F55.9 °F6.31 in.
May46.5 °F60.2 °F3.37 in.
June50.4 °F63.6 °F2.49 in.
July53.2 °F67.0 °F1.06 in.
August53.2 °F68.2 °F1.57 in.
September51.0 °F67.2 °F2.83 in.
October46.0 °F60.2 °F8.17 in.
November41.4 °F52.6 °F12.44 in.
December38.2 °F47.9 °F12.55 in.
Annual44.9 °F57.8 °F80.25 in.

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 : 20°F to 25°F
Plant Hardiness Zone - 2012Zone 9a : 20°F to 25°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate