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Monthly climate in Vandalia, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Vandalia features a humid continental climate (Dfa).Temperatures typically range between -1 °C (31 °F) and 26 °C (79 °F) through the year, but rarely can drop to -23 °C (-10 °F) or can rise to as high as 37 °C (98 °F).The average annual precipitation amounts to about 1127 mm (44.4 inches) and receives 115 rainy days on the 1 mm (0.04 inches) threshold annually.Vandalia enjoys an average of 3027 hours of sunshine throughout the year, and daylight varies from 9 hours 26 minutes to 14 hours 52 minutes per day.

Monthly average temperatures in Vandalia, Missouri, United States §

The warmest months in Vandalia are June, July and August, with daily mean temperatures ranging from 24 to 26 °C (76 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 3 °C (31 - 38 °F) throughout the day. On average each year, Vandalia experiences 117 days above 25 °C (77.0 °F) and 83 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Vandalia, 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 18°C
(65°F)		 25°C
(77°F)		 28°C
(82°F)		 31°C
(87°F)		 35°C
(95°F)		 37°C
(98°F)		 36°C
(98°F)		 36°C
(97°F)		 35°C
(95°F)		 32°C
(91°F)		 24°C
(76°F)		 23°C
(74°F)
Mean maximum 16°C
(61°F)		 19°C
(67°F)		 23°C
(74°F)		 29°C
(85°F)		 32°C
(90°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 33°C
(92°F)		 31°C
(88°F)		 21°C
(69°F)		 20°C
(68°F)
Average high 3°C
(38°F)		 6°C
(43°F)		 13°C
(55°F)		 18°C
(64°F)		 24°C
(76°F)		 30°C
(85°F)		 31°C
(88°F)		 29°C
(85°F)		 28°C
(82°F)		 20°C
(67°F)		 11°C
(53°F)		 8°C
(47°F)
Daily mean -1°C
(31°F)		 1°C
(34°F)		 8°C
(46°F)		 12°C
(54°F)		 19°C
(67°F)		 25°C
(76°F)		 26°C
(79°F)		 24°C
(76°F)		 22°C
(72°F)		 14°C
(58°F)		 6°C
(44°F)		 3°C
(38°F)
Average low -5°C
(24°F)		 -4°C
(25°F)		 3°C
(38°F)		 7°C
(45°F)		 14°C
(58°F)		 20°C
(67°F)		 22°C
(71°F)		 19°C
(67°F)		 17°C
(62°F)		 9°C
(49°F)		 1°C
(35°F)		 -1°C
(30°F)
Mean minimum -17°C
(2°F)		 -17°C
(1°F)		 -9°C
(17°F)		 -2°C
(29°F)		 6°C
(43°F)		 15°C
(59°F)		 17°C
(63°F)		 14°C
(57°F)		 9°C
(48°F)		 -1°C
(31°F)		 -8°C
(17°F)		 -11°C
(13°F)
Minimum -23°C
(-10°F)		 -21°C
(-6°F)		 -16°C
(3°F)		 -7°C
(20°F)		 4°C
(39°F)		 12°C
(54°F)		 15°C
(60°F)		 13°C
(55°F)		 6°C
(43°F)		 -4°C
(25°F)		 -15°C
(6°F)		 -18°C
(-0°F)

Compare climate in Vandalia with other places

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

Monthly average precipitation in Vandalia, Missouri, United States §

Vandalia usually has the most precipitation in March, May and August, with an average of 12 rainy days and 138 mm (5.4 inches) of precipitation per month.The driest months in Vandalia are February, November and December. On average, 55 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Vandalia, 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) 66 (2.6) 62 (2.4) 125 (4.9) 116 (4.5) 165 (6.5) 109 (4.3) 95 (3.7) 124 (4.9) 62 (2.5) 100 (3.9) 60 (2.4) 45 (1.8)
Average precipitation days (≥ 1 mm) 7 9 11 11 15 11 9 11 7 11 8 5

Monthly sunshine hours in Vandalia, Missouri, United States §

The sunniest months in Vandalia are June, July and August, when the sun shines an average of 11 hours 3 minutes a day.Least sunny months in Vandalia: January, February and December receive an average of 5 hours 43 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Vandalia, 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 129 183 210 249 287 333 355 329 289 237 214 207
Mean daily daylight hours 9h 44m 10h 43m 11h 58m 13h 15m 14h 20m 14h 52m 14h 35m 13h 37m 12h 23m 11h 6m 9h 59m 9h 26m

Solar UV radiation in Vandalia, Missouri, United States §

Vandalia 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 Vandalia UV Index data.

Average daily maximum UV levels by month for Vandalia, 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