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Monthly climate in Unionville, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Unionville features a humid continental climate (Dfa).Temperatures typically range between -4 °C (26 °F) and 26 °C (79 °F) through the year, but rarely can drop to -29 °C (-21 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1075 mm (42.3 inches) and receives 107 rainy days on the 1 mm (0.04 inches) threshold annually.Unionville enjoys an average of 3054 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Unionville, Missouri, United States §

The warmest months in Unionville 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 -4 to 1 °C (26 - 34 °F) throughout the day. On average each year, Unionville experiences 103 days above 25 °C (77.0 °F) and 105 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Unionville, 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 14°C
(58°F)		 22°C
(72°F)		 23°C
(73°F)		 29°C
(85°F)		 37°C
(99°F)		 39°C
(102°F)		 37°C
(100°F)		 37°C
(99°F)		 33°C
(92°F)		 31°C
(88°F)		 23°C
(74°F)		 23°C
(73°F)
Mean maximum 12°C
(55°F)		 17°C
(62°F)		 21°C
(70°F)		 27°C
(81°F)		 32°C
(90°F)		 34°C
(94°F)		 35°C
(96°F)		 34°C
(93°F)		 32°C
(90°F)		 29°C
(85°F)		 19°C
(66°F)		 17°C
(64°F)
Average high 1°C
(34°F)		 3°C
(37°F)		 11°C
(51°F)		 16°C
(61°F)		 23°C
(73°F)		 29°C
(85°F)		 31°C
(88°F)		 29°C
(84°F)		 26°C
(80°F)		 17°C
(63°F)		 10°C
(50°F)		 6°C
(43°F)
Daily mean -4°C
(26°F)		 -2°C
(28°F)		 6°C
(42°F)		 10°C
(51°F)		 18°C
(64°F)		 24°C
(76°F)		 26°C
(79°F)		 24°C
(75°F)		 21°C
(70°F)		 12°C
(54°F)		 5°C
(40°F)		 1°C
(34°F)
Average low -8°C
(18°F)		 -7°C
(19°F)		 1°C
(34°F)		 5°C
(41°F)		 13°C
(55°F)		 19°C
(66°F)		 21°C
(70°F)		 18°C
(66°F)		 15°C
(60°F)		 8°C
(46°F)		 -0°C
(32°F)		 -4°C
(26°F)
Mean minimum -23°C
(-9°F)		 -20°C
(-4°F)		 -10°C
(14°F)		 -5°C
(24°F)		 5°C
(41°F)		 13°C
(56°F)		 16°C
(62°F)		 13°C
(56°F)		 8°C
(46°F)		 -2°C
(28°F)		 -11°C
(13°F)		 -14°C
(7°F)
Minimum -29°C
(-21°F)		 -27°C
(-17°F)		 -18°C
(-0°F)		 -9°C
(16°F)		 2°C
(36°F)		 10°C
(51°F)		 15°C
(59°F)		 12°C
(53°F)		 6°C
(44°F)		 -5°C
(24°F)		 -16°C
(4°F)		 -25°C
(-13°F)

Compare climate in Unionville with other places

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

Monthly average precipitation in Unionville, Missouri, United States §

Unionville usually has the most precipitation in May, June and October, with an average of 12 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Unionville are January, February and December. On average, 46 mm (1.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Unionville, 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) 51 (2.0) 50 (2.0) 101 (4.0) 82 (3.2) 155 (6.1) 120 (4.7) 96 (3.8) 83 (3.3) 120 (4.7) 129 (5.1) 52 (2.0) 35 (1.4)
Average precipitation days (≥ 1 mm) 6 8 11 10 15 10 8 8 8 11 7 5

Monthly sunshine hours in Unionville, Missouri, United States §

The sunniest months in Unionville are June, July and August, when the sun shines an average of 11 hours 16 minutes a day.Least sunny months in Unionville: January, February and November receive an average of 5 hours 56 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Unionville, 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 137 189 212 260 273 338 363 334 283 239 208 213
Mean daily daylight hours 9h 38m 10h 40m 11h 58m 13h 18m 14h 26m 15h 0m 14h 41m 13h 41m 12h 24m 11h 4m 9h 54m 9h 19m

Solar UV radiation in Unionville, Missouri, United States §

Unionville 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 Unionville UV Index data.

Average daily maximum UV levels by month for Unionville, 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 6 9 10 11 11 10 8 6 4 3