Duncan Oklahoma Climate Data

Monthly Average Climate Data for Duncan Oklahoma

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January28.3 °F52.5 °F1.45 in.
February31.9 °F56.4 °F1.75 in.
March40.6 °F65.5 °F2.68 in.
April48.5 °F73.3 °F3.38 in.
May58.8 °F81.0 °F5.13 in.
June67.8 °F89.3 °F4.37 in.
July71.6 °F94.7 °F2.47 in.
August70.7 °F94.8 °F2.82 in.
September62.9 °F86.4 °F3.73 in.
October50.7 °F75.7 °F3.69 in.
November39.4 °F63.9 °F2.25 in.
December30.3 °F53.6 °F2.01 in.
Annual50.1 °F73.9 °F35.73 in.

Climate Data for Duncan Oklahoma

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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