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Monthly climate in Hannibal, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Hannibal features a humid continental climate (Dfa).Temperatures typically range between -2 °C (29 °F) and 26 °C (79 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1123 mm (44.2 inches) and receives 113 rainy days on the 1 mm (0.04 inches) threshold annually.Hannibal enjoys an average of 2969 hours of sunshine throughout the year, and daylight varies from 9 hours 23 minutes to 14 hours 55 minutes per day.

Monthly average temperatures in Hannibal, Missouri, United States §

The warmest months in Hannibal are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (75 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 37 °F) throughout the day. On average each year, Hannibal experiences 114 days above 25 °C (77.0 °F) and 89 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hannibal, Missouri, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 17°C
(63°F)		 24°C
(76°F)		 25°C
(78°F)		 29°C
(85°F)		 35°C
(95°F)		 35°C
(96°F)		 36°C
(97°F)		 35°C
(96°F)		 35°C
(95°F)		 32°C
(91°F)		 24°C
(75°F)		 23°C
(73°F)
Mean maximum 15°C
(59°F)		 18°C
(65°F)		 22°C
(72°F)		 29°C
(84°F)		 32°C
(91°F)		 34°C
(93°F)		 35°C
(95°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(87°F)		 20°C
(68°F)		 19°C
(67°F)
Average high 3°C
(37°F)		 5°C
(41°F)		 12°C
(54°F)		 17°C
(63°F)		 24°C
(75°F)		 29°C
(85°F)		 31°C
(87°F)		 29°C
(85°F)		 27°C
(81°F)		 19°C
(67°F)		 11°C
(52°F)		 7°C
(46°F)
Daily mean -2°C
(29°F)		 -0°C
(32°F)		 7°C
(45°F)		 12°C
(53°F)		 19°C
(66°F)		 24°C
(76°F)		 26°C
(79°F)		 24°C
(75°F)		 22°C
(71°F)		 14°C
(57°F)		 6°C
(43°F)		 2°C
(37°F)
Average low -6°C
(22°F)		 -5°C
(24°F)		 2°C
(36°F)		 6°C
(44°F)		 14°C
(57°F)		 19°C
(67°F)		 21°C
(70°F)		 19°C
(66°F)		 16°C
(62°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -19°C
(-2°F)		 -19°C
(-1°F)		 -9°C
(16°F)		 -2°C
(28°F)		 6°C
(42°F)		 14°C
(58°F)		 16°C
(62°F)		 13°C
(56°F)		 8°C
(48°F)		 -1°C
(30°F)		 -9°C
(16°F)		 -12°C
(11°F)
Minimum -26°C
(-15°F)		 -26°C
(-15°F)		 -17°C
(2°F)		 -7°C
(19°F)		 3°C
(38°F)		 11°C
(52°F)		 14°C
(58°F)		 12°C
(55°F)		 7°C
(45°F)		 -5°C
(24°F)		 -14°C
(6°F)		 -19°C
(-2°F)

Compare climate in Hannibal with other places

Compare temperature, precipitation, sunshine, UV index in Hannibal, Missouri, United States with other places around the world.

Monthly average precipitation in Hannibal, Missouri, United States §

Hannibal usually has the most precipitation in March, May and June, with an average of 12 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Hannibal are February, November and December. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hannibal, Missouri, United States.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 65 (2.5) 62 (2.4) 125 (4.9) 103 (4.0) 160 (6.3) 119 (4.7) 92 (3.6) 99 (3.9) 85 (3.3) 108 (4.2) 60 (2.4) 45 (1.8)
Average precipitation days (≥ 1 mm) 7 9 11 10 15 10 9 10 7 10 9 6

Monthly sunshine hours in Hannibal, Missouri, United States §

The sunniest months in Hannibal are June, July and August, when the sun shines an average of 10 hours 58 minutes a day.Least sunny months in Hannibal: January, February and December receive an average of 5 hours 32 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hannibal, Missouri, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 121 178 209 242 279 328 350 330 286 230 207 203
Mean daily daylight hours 9h 42m 10h 42m 11h 58m 13h 17m 14h 23m 14h 55m 14h 37m 13h 39m 12h 23m 11h 5m 9h 57m 9h 23m

Solar UV radiation in Hannibal, Missouri, United States §

Hannibal experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Hannibal UV Index data.

Average daily maximum UV levels by month for Hannibal, Missouri, United States.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 7 9 10 11 11 10 9 6 4 3