La Grande Washington Climate Data

Monthly Average Climate Data for La Grande Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January0.8 °C7.3 °C134.11 mm
February0.8 °C8.6 °C84.58 mm
March1.9 °C11 °C125.22 mm
April3.5 °C14.7 °C99.57 mm
May6.6 °C19.1 °C72.9 mm
June8.9 °C21.7 °C54.86 mm
July11.1 °C25.7 °C19.81 mm
August11.3 °C26.3 °C25.91 mm
September9.1 °C22.3 °C41.4 mm
October5.6 °C15.5 °C95.76 mm
November2.4 °C9.6 °C140.97 mm
December0.5 °C6.7 °C129.79 mm
Annual5.2 °C15.7 °C1024.88 mm

Climate Data for La Grande Washington

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 8b : -9.4°C to -6.7°C
Plant Hardiness Zone - 2012Zone 8a : -12.2°C to -9.4°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate