Rosalia Washington Climate Data

Monthly Average Climate Data for Rosalia Washington

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January24.9 °F36.8 °F2.22 in.
February26.1 °F41.3 °F1.6 in.
March30.1 °F49.3 °F1.87 in.
April34.6 °F57.3 °F1.6 in.
May41.1 °F66.5 °F1.66 in.
June46.6 °F72.7 °F1.37 in.
July50.6 °F84.3 °F0.54 in.
August50.2 °F84.8 °F0.45 in.
September43.2 °F75.2 °F0.61 in.
October35.2 °F60.0 °F1.57 in.
November29.5 °F44.7 °F2.34 in.
December24.3 °F35.7 °F2.42 in.
Annual36.4 °F59.1 °F18.25 in.

Climate Data for Rosalia Washington

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDsb - Humid Continental Climate - Dry Cool Summer