Farmington Washington Climate Data

Monthly Average Climate Data for Farmington Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.3 °F36.8 °F3.21 in.
February26.0 °F40.6 °F2.33 in.
March29.8 °F48.1 °F2.56 in.
April34.4 °F55.7 °F2.05 in.
May40.5 °F65.2 °F2.25 in.
June45.4 °F71.0 °F1.65 in.
July48.8 °F82.4 °F0.62 in.
August48.6 °F83.7 °F0.59 in.
September42.4 °F74.1 °F0.76 in.
October35.2 °F59.4 °F1.98 in.
November29.8 °F44.1 °F2.93 in.
December24.4 °F35.5 °F3.26 in.
Annual35.9 °F58.1 °F24.19 in.

Climate Data for Farmington Washington

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer