Hennessey Oklahoma Climate Data

Monthly Average Climate Data for Hennessey Oklahoma

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-4 °C8.9 °C27.43 mm
February-2.3 °C11.1 °C37.59 mm
March2.4 °C16.4 °C62.48 mm
April7.2 °C21.4 °C91.95 mm
May13.4 °C26.4 °C123.19 mm
June18.9 °C31.9 °C117.6 mm
July21.4 °C35.1 °C77.22 mm
August20.6 °C34.3 °C88.39 mm
September16.2 °C30 °C66.55 mm
October9.1 °C23 °C78.23 mm
November2.4 °C15.8 °C45.72 mm
December-2.7 °C9.6 °C40.39 mm
Annual8.6 °C22 °C856.74 mm

Climate Data for Hennessey Oklahoma

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 7a : -17.8°C to -15°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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