Altoona Washington Climate Data

Monthly Average Climate Data for Altoona Washington

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January3.1 °C8.8 °C402.08 mm
February3.1 °C10.4 °C250.19 mm
March3.7 °C12.1 °C284.48 mm
April5.1 °C14.1 °C198.37 mm
May7.7 °C16.8 °C107.95 mm
June9.7 °C18.8 °C86.36 mm
July11.9 °C21.4 °C27.18 mm
August12 °C22.3 °C43.18 mm
September10.9 °C21.3 °C97.28 mm
October7.9 °C16.4 °C243.84 mm
November5.1 °C11.6 °C387.35 mm
December2.9 °C8.5 °C406.15 mm
Annual6.9 °C15.2 °C2534.41 mm

Climate Data for Altoona Washington

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 9a : -6.7°C to -3.9°C
Plant Hardiness Zone - 2012Zone 8b : -9.4°C to -6.7°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate