Heavener Oklahoma Climate Data

Monthly Average Climate Data for Heavener Oklahoma

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.1 °C10.9 °C75.18 mm
February0.1 °C13.5 °C75.69 mm
March4.4 °C18.1 °C102.11 mm
April9 °C22.7 °C137.41 mm
May14.4 °C26.6 °C184.4 mm
June19.2 °C31.3 °C113.03 mm
July21.3 °C34.2 °C82.8 mm
August20.4 °C34.1 °C107.95 mm
September16.2 °C30.2 °C116.59 mm
October9.6 °C24.2 °C113.03 mm
November4 °C17.7 °C120.65 mm
December-0.6 °C12.2 °C95.76 mm
Annual9.7 °C23 °C1324.6 mm

Climate Data for Heavener Oklahoma

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost50-75 Days
Plant Hardiness Zone - 2023Zone 7b : -15°C to -12.2°C
Plant Hardiness Zone - 2012Zone 7b : -15°C to -12.2°C
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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