Marietta Oklahoma Climate Data

Monthly Average Climate Data for Marietta Oklahoma

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January30.4 °F53.0 °F1.95 in.
February34.0 °F57.1 °F2.27 in.
March42.1 °F65.4 °F3.17 in.
April49.9 °F73.5 °F3.37 in.
May59.8 °F80.6 °F5.55 in.
June68.7 °F89.0 °F4.2 in.
July72.5 °F94.0 °F2.75 in.
August71.6 °F94.6 °F2.63 in.
September64.1 °F87.0 °F3.7 in.
October52.2 °F76.4 °F3.97 in.
November41.4 °F64.7 °F2.55 in.
December32.6 °F54.7 °F2.67 in.
Annual51.6 °F74.2 °F38.78 in.
MonthAvg. LowAvg. HighAvg. Precip
January27.3 °F48.1 °F2.98 in.
February30.5 °F52.4 °F2.62 in.
March38.8 °F61.2 °F4.27 in.
April46.9 °F70.2 °F5.02 in.
May56.4 °F77.1 °F6.52 in.
June65.3 °F85.1 °F5.32 in.
July69.2 °F90.4 °F4.24 in.
August67.9 °F90.4 °F3.43 in.
September60.3 °F83.3 °F4.86 in.
October48.8 °F72.3 °F4.57 in.
November38.8 °F60.7 °F3.99 in.
December30.1 °F50.3 °F3.27 in.
Annual48.4 °F70.1 °F51.09 in.

Climate Data for Marietta 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
Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7a : 0°F to 5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationCfa - Humid Subtropical Climate
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