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October Weather in Hannibal, United States

Last updated: June 24, 2025

In October, the average temperature in Hannibal, United States is a comfortable 13°C (55°F). Expect minimums dipping to 1°C (35°F) and maximums reaching up to 27°C (81°F). Be prepared for 169 mm (6.7 in) of precipitation spread over 15 days, contributing to an average humidity of a humid 84%.

October Temperature in Hannibal

In October in Hannibal, the average temperature is 13°C (55°F). The maximum can reach 27°C (81°F), and the minimum can be as low as 1°C (35°F). Be prepared for a mix of warm and cool weather, making it ideal for exploring the area's attractions comfortably.

October Weather in Hannibal: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Hannibal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hannibal, October typically has an average temperature of 13°C (55°F), with highs reaching up to 27°C (81°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec272935455766737265554033
Data source: Temperature data for Hannibal generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Hannibal

In Hannibal in October, the precipitation amount is 169 mm (6.7 in) over a span of 15 days.

October Precipitation Trends in Hannibal

The chart displays monthly precipitation patterns in Hannibal, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Hannibal, October typically receives around 169 mm (6.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec9697871211219318512390169113116
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Hannibal

In Hannibal in October humidity is 84%. With average temperature 13°C (55°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and draining for traveling.

October Average Humidity in Hannibal

This chart illustrates the average monthly humidity levels in Hannibal, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Hannibal is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%87%88%82%79%78%76%78%84%89%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Hannibal

In Hannibal in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hannibal, you can refer to this Hourly UV Index in Hannibal.

Maximum UV Index Levels in Hannibal for October

The chart shows the monthly maximum UV Index (UVI) for Hannibal in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Hannibal typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997632
Data source: Hannibal October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Hannibal Compares to Other Months

Weather in Hannibal varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Hannibal, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Hannibal, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (27°F)96 mm (3.8 inches)90%moderate
February Weather-2°C (29°F)96 mm (3.8 inches)90%moderate
March Weather1°C (35°F)87 mm (3.4 inches)87%high
April Weather7°C (45°F)121 mm (4.8 inches)88%very high
May Weather14°C (57°F)121 mm (4.8 inches)82%very high
June Weather19°C (66°F)93 mm (3.7 inches)79%very high
July Weather23°C (73°F)185 mm (7.3 inches)78%very high
August Weather22°C (72°F)123 mm (4.8 inches)76%very high
September Weather18°C (65°F)90 mm (3.5 inches)78%high
October Weather13°C (55°F)169 mm (6.7 inches)84%high
November Weather5°C (41°F)113 mm (4.5 inches)89%moderate
December Weather0°C (33°F)116 mm (4.5 inches)86%low

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