Hannibal Missouri Climate Data

Monthly Average Climate Data for Hannibal Missouri

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7 °C2.2 °C48.77 mm
February-5.1 °C5.2 °C54.86 mm
March0.1 °C11.3 °C70.61 mm
April6.2 °C18.1 °C107.95 mm
May12.1 °C23.7 °C124.46 mm
June17.5 °C28.7 °C113.79 mm
July19.5 °C30.8 °C99.31 mm
August18.4 °C30.2 °C93.73 mm
September13.8 °C26.3 °C87.12 mm
October7.6 °C19.4 °C81.53 mm
November1.2 °C11.7 °C69.34 mm
December-4.2 °C5 °C52.83 mm
Annual6.7 °C17.7 °C1004.3 mm

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 : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com