The Dalles Oregon Climate Data

Monthly Average Climate Data for The Dalles Oregon

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January30.8 °F42.5 °F2.85 in.
February31.6 °F48.5 °F1.31 in.
March35.5 °F56.3 °F1.49 in.
April40.4 °F63.7 °F0.68 in.
May46.9 °F72.5 °F0.79 in.
June52.5 °F78.4 °F0.45 in.
July57.7 °F87.3 °F0.16 in.
August57.3 °F87.7 °F0.23 in.
September50.0 °F80.1 °F0.31 in.
October41.6 °F66.2 °F1.12 in.
November35.0 °F51.0 °F2.11 in.
December30.9 °F42.3 °F3.01 in.
Annual42.5 °F64.7 °F14.51 in.

Climate Data for The Dalles Oregon

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 8a : 10°F to 15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCsb - Warm-Summer Mediterranean Climate