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Monthly climate in Dexter, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Dexter features a humid subtropical climate (Cfa).Temperatures typically range between 3 °C (38 °F) and 27 °C (81 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1403 mm (55.2 inches) and receives 122 rainy days on the 1 mm (0.04 inches) threshold annually.Dexter enjoys an average of 2991 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Dexter, Missouri, United States §

The warmest months in Dexter are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 6 °C (38 - 43 °F) throughout the day. On average each year, Dexter experiences 130 days above 25 °C (77.0 °F) and 58 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dexter, 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 22°C
(71°F)		 25°C
(77°F)		 27°C
(81°F)		 29°C
(85°F)		 33°C
(92°F)		 36°C
(97°F)		 37°C
(99°F)		 36°C
(97°F)		 36°C
(96°F)		 34°C
(94°F)		 27°C
(81°F)		 24°C
(75°F)
Mean maximum 18°C
(66°F)		 21°C
(71°F)		 24°C
(76°F)		 28°C
(83°F)		 31°C
(89°F)		 34°C
(93°F)		 35°C
(95°F)		 35°C
(94°F)		 33°C
(92°F)		 31°C
(88°F)		 23°C
(74°F)		 21°C
(70°F)
Average high 8°C
(46°F)		 10°C
(50°F)		 16°C
(61°F)		 20°C
(68°F)		 26°C
(78°F)		 30°C
(86°F)		 32°C
(89°F)		 30°C
(87°F)		 29°C
(84°F)		 22°C
(72°F)		 14°C
(57°F)		 11°C
(52°F)
Daily mean 3°C
(38°F)		 5°C
(41°F)		 11°C
(51°F)		 14°C
(58°F)		 21°C
(70°F)		 25°C
(78°F)		 27°C
(81°F)		 26°C
(78°F)		 23°C
(74°F)		 16°C
(62°F)		 8°C
(47°F)		 6°C
(43°F)
Average low -1°C
(30°F)		 -0°C
(32°F)		 5°C
(42°F)		 9°C
(49°F)		 16°C
(61°F)		 20°C
(69°F)		 23°C
(73°F)		 21°C
(70°F)		 18°C
(65°F)		 11°C
(52°F)		 3°C
(37°F)		 1°C
(34°F)
Mean minimum -11°C
(12°F)		 -11°C
(12°F)		 -5°C
(23°F)		 -0°C
(32°F)		 7°C
(45°F)		 15°C
(60°F)		 18°C
(64°F)		 15°C
(59°F)		 10°C
(51°F)		 0°C
(33°F)		 -6°C
(22°F)		 -8°C
(18°F)
Minimum -17°C
(2°F)		 -20°C
(-4°F)		 -10°C
(13°F)		 -2°C
(28°F)		 2°C
(36°F)		 10°C
(51°F)		 16°C
(60°F)		 13°C
(56°F)		 8°C
(47°F)		 -2°C
(28°F)		 -11°C
(13°F)		 -12°C
(11°F)

Compare climate in Dexter with other places

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

Monthly average precipitation in Dexter, Missouri, United States §

Dexter usually has the most precipitation in March, April and May, with an average of 13 rainy days and 155 mm (6.1 inches) of precipitation per month.The driest months in Dexter are July, September and December. On average, 87 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dexter, 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) 108 (4.2) 132 (5.2) 160 (6.3) 154 (6.0) 152 (6.0) 101 (4.0) 93 (3.6) 111 (4.4) 71 (2.8) 123 (4.8) 101 (4.0) 97 (3.8)
Average precipitation days (≥ 1 mm) 8 11 14 12 13 9 9 11 8 10 9 8

Monthly sunshine hours in Dexter, Missouri, United States §

The sunniest months in Dexter are June, July and August, when the sun shines an average of 10 hours 48 minutes a day.Least sunny months in Dexter: January, February and December receive an average of 5 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dexter, 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 136 171 199 248 290 326 346 321 288 249 221 191
Mean daily daylight hours 9h 57m 10h 51m 11h 59m 13h 9m 14h 7m 14h 36m 14h 21m 13h 28m 12h 21m 11h 12m 10h 11m 9h 40m

Solar UV radiation in Dexter, Missouri, United States §

Dexter experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 5. For more detailed information, check out our hourly Dexter UV Index data.

Average daily maximum UV levels by month for Dexter, 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 6 7 10 10 11 11 10 9 7 5 3