October weather forecastHannibal, MO
October
Weather in October
October brings about marked changes in Hannibal's climate, embracing the fall season in earnest with cooling temperatures, abundant foliage, and reduced daylight hours. The characteristics of summer retreat and the month wears a distinctive autumnal look. October truly captures the essence of fall, adopting cooler temperatures that render the landscape in shades of gold and auburn. The temperatures range from 47.1°F (8.4°C) to 64.4°F (18°C). Visiting Hannibal, Missouri during this time offers a myriad of scenic views, infused with the nostalgic allure of a classic midwestern autumn.Temperature
Hannibal in October undergoes a mild reduction in the average high-temperature, shifting from September's warm 78.4°F (25.8°C) to a comfortable 64.4°F (18°C). October's nights in Hannibal observe an average temperature of 47.1°F (8.4°C).Humidity
The least humid month is October, with an average relative humidity of 70%.Rainfall
In Hannibal, during October, the rain falls for 10.8 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Hannibal, during the entire year, the rain falls for 136 days and collects up to 25" (635mm) of precipitation.Snowfall
In Hannibal, Missouri, snow does not fall in May through October.Daylight
In Hannibal, the average length of the day in October is 11h and 8min.On the first day of the month, sunrise is at 7:02 am and sunset at 6:47 pm. On the last day of October, sunrise is at 7:33 am and sunset at 6:04 pm CDT.
Sunshine
In October, the average sunshine is 5.8h.UV index
The average daily maximum UV index in October in Hannibal is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In October, the maximum UV index of 3 suggests this advice:
Make use of precautions - It is urged to ward off sun damage. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Hannibal, MO
- Average high temperature in October: 64.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in October
Hannibal, MO
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Hannibal, MO
- Average wind speed in October: 8.6mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in October
Hannibal, MO
- Average humidity in October: 70%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Hannibal, MO
- Average rainfall in October: 1.89"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in October
Hannibal, MO
- Average rainfall days in October: 10.8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in October
Hannibal, MO
- Average snowfall in October: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Hannibal, MO
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Hannibal, MO
- Average daylight in October: 11h and 6min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 5h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Hannibal, MO
- Average sunshine days in October: 19.3 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in October
Hannibal, MO
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Hannibal, MO
- Average cloud cover in October: 33
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in October
Hannibal, MO
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
