Hannibal Missouri Climate Data

Monthly Average Climate Data for Hannibal Missouri

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.4 °F36.0 °F1.92 in.
February22.9 °F41.3 °F2.16 in.
March32.1 °F52.3 °F2.78 in.
April43.1 °F64.5 °F4.25 in.
May53.8 °F74.6 °F4.9 in.
June63.5 °F83.6 °F4.48 in.
July67.1 °F87.5 °F3.91 in.
August65.2 °F86.3 °F3.69 in.
September56.8 °F79.3 °F3.43 in.
October45.6 °F66.9 °F3.21 in.
November34.2 °F53.1 °F2.73 in.
December24.5 °F41.0 °F2.08 in.
Annual44 °F63.9 °F39.54 in.

Climate Data for Hannibal Missouri

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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