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Monthly climate in Trenton, Missouri, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Trenton features a humid continental climate (Dfa).Temperatures typically range between -2 °C (28 °F) and 26 °C (79 °F) through the year, but rarely can drop to -29 °C (-19 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1147 mm (45.2 inches) and receives 110 rainy days on the 1 mm (0.04 inches) threshold annually.Trenton enjoys an average of 3020 hours of sunshine throughout the year, and daylight varies from 9 hours 21 minutes to 14 hours 57 minutes per day.

Monthly average temperatures in Trenton, Missouri, United States §

The warmest months in Trenton 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 -2 to 2 °C (28 - 36 °F) throughout the day. On average each year, Trenton experiences 110 days above 25 °C (77.0 °F) and 96 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Trenton, 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 16°C
(61°F)		 23°C
(74°F)		 24°C
(76°F)		 29°C
(85°F)		 35°C
(96°F)		 38°C
(101°F)		 37°C
(99°F)		 37°C
(98°F)		 33°C
(93°F)		 32°C
(89°F)		 24°C
(76°F)		 23°C
(74°F)
Mean maximum 14°C
(57°F)		 18°C
(65°F)		 22°C
(73°F)		 28°C
(82°F)		 32°C
(90°F)		 34°C
(93°F)		 35°C
(96°F)		 34°C
(94°F)		 32°C
(91°F)		 30°C
(86°F)		 20°C
(68°F)		 18°C
(65°F)
Average high 2°C
(36°F)		 4°C
(40°F)		 12°C
(54°F)		 17°C
(63°F)		 23°C
(74°F)		 30°C
(85°F)		 31°C
(88°F)		 29°C
(85°F)		 27°C
(81°F)		 18°C
(65°F)		 11°C
(51°F)		 7°C
(45°F)
Daily mean -2°C
(28°F)		 -1°C
(30°F)		 7°C
(44°F)		 11°C
(53°F)		 18°C
(65°F)		 24°C
(76°F)		 26°C
(79°F)		 24°C
(76°F)		 21°C
(71°F)		 13°C
(56°F)		 5°C
(42°F)		 2°C
(36°F)
Average low -7°C
(20°F)		 -6°C
(21°F)		 2°C
(36°F)		 6°C
(43°F)		 14°C
(57°F)		 19°C
(67°F)		 21°C
(71°F)		 19°C
(67°F)		 16°C
(61°F)		 8°C
(47°F)		 0°C
(33°F)		 -3°C
(27°F)
Mean minimum -20°C
(-3°F)		 -19°C
(-2°F)		 -9°C
(15°F)		 -4°C
(25°F)		 6°C
(43°F)		 14°C
(57°F)		 16°C
(62°F)		 13°C
(56°F)		 8°C
(47°F)		 -2°C
(29°F)		 -10°C
(14°F)		 -13°C
(9°F)
Minimum -29°C
(-19°F)		 -26°C
(-15°F)		 -17°C
(2°F)		 -8°C
(18°F)		 3°C
(38°F)		 12°C
(53°F)		 15°C
(59°F)		 11°C
(53°F)		 6°C
(43°F)		 -4°C
(25°F)		 -15°C
(6°F)		 -21°C
(-5°F)

Compare climate in Trenton with other places

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

Monthly average precipitation in Trenton, Missouri, United States §

Trenton usually has the most precipitation in May, June and October, with an average of 12 rainy days and 153 mm (6.0 inches) of precipitation per month.The driest months in Trenton are February, November and December. On average, 44 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Trenton, 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) 56 (2.2) 46 (1.8) 104 (4.1) 85 (3.4) 181 (7.1) 142 (5.6) 110 (4.3) 103 (4.1) 96 (3.8) 137 (5.4) 53 (2.1) 34 (1.3)
Average precipitation days (≥ 1 mm) 6 8 11 10 15 10 9 10 8 11 7 5

Monthly sunshine hours in Trenton, Missouri, United States §

The sunniest months in Trenton are June, July and August, when the sun shines an average of 11 hours 5 minutes a day.Least sunny months in Trenton: January, February and November receive an average of 5 hours 54 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Trenton, 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 138 187 208 256 271 334 359 326 282 234 205 213
Mean daily daylight hours 9h 40m 10h 41m 11h 58m 13h 17m 14h 24m 14h 57m 14h 39m 13h 40m 12h 23m 11h 5m 9h 56m 9h 21m

Solar UV radiation in Trenton, Missouri, United States §

Trenton 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 Trenton UV Index data.

Average daily maximum UV levels by month for Trenton, 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 9 6 4 3