Helena Oklahoma Climate Data

Monthly Average Climate Data for Helena Oklahoma

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January23.3 °F47.4 °F1.0 in.
February26.2 °F51.2 °F1.25 in.
March35.1 °F61.3 °F2.31 in.
April43.5 °F70.1 °F3.03 in.
May55.0 °F79.6 °F4.33 in.
June65.4 °F89.9 °F4.39 in.
July69.8 °F95.1 °F3.24 in.
August68.3 °F93.3 °F3.71 in.
September60.2 °F85.5 °F2.53 in.
October47.0 °F72.8 °F3.08 in.
November34.7 °F59.7 °F1.59 in.
December25.5 °F48.3 °F1.42 in.
Annual46.2 °F71.2 °F31.88 in.

Climate Data for Helena Oklahoma

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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