Arlington Washington Climate Data

Monthly Average Climate Data for Arlington Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January1 °C7.9 °C144.27 mm
February0.8 °C9.6 °C107.19 mm
March2.2 °C11.7 °C126.24 mm
April4.4 °C14.9 °C105.92 mm
May7.2 °C18.6 °C78.99 mm
June9.6 °C20.7 °C62.99 mm
July10.9 °C24.3 °C29.21 mm
August10.9 °C24.8 °C30.99 mm
September8.8 °C21.9 °C62.23 mm
October5.3 °C15.8 °C124.97 mm
November2.6 °C10.6 °C172.21 mm
December0.8 °C7.4 °C164.34 mm
Annual5.4 °C15.7 °C1209.55 mm

Climate Data for Arlington Washington

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost40-50 Days
Plant Hardiness Zone - 2023Zone 8a : -12.2°C to -9.4°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate