Hannibal’s climate has barely shifted in a century
Hannibal has chilly winters and warm summers. A typical July afternoon reaches 87°, a January night drops to 19°, and about 13 inches of snow falls in a normal winter. In November, a normal day reaches 52° and a normal night drops to 34°.
Getting the latest forecast from the National Weather Service…
What stands out about Hannibal’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Hannibal’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Hannibal.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Hannibal itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Palmyra, MO (7 mi, snow) and Hannibal Wtr Wks, MO (2 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.