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Monthly climate in Duncanville, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Duncanville features a humid subtropical climate (Cfa).Temperatures typically range between 8 °C (47 °F) and 30 °C (86 °F) through the year, but rarely can drop to -18 °C (-1 °F) or can rise to as high as 42 °C (108 °F).The average annual precipitation amounts to about 1082 mm (42.6 inches) and receives 97 rainy days on the 1 mm (0.04 inches) threshold annually.Duncanville enjoys an average of 3186 hours of sunshine throughout the year, and daylight varies from 10 hours 0 minutes to 14 hours 16 minutes per day.

Monthly average temperatures in Duncanville, Texas, United States §

The warmest months in Duncanville are June, July and August, with daily mean temperatures ranging from 28 to 30 °C (82 - 86 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 8 to 11 °C (47 - 52 °F) throughout the day. On average each year, Duncanville experiences 174 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Duncanville, Texas, 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 26°C
(80°F)		 30°C
(87°F)		 34°C
(93°F)		 34°C
(94°F)		 36°C
(97°F)		 38°C
(101°F)		 42°C
(108°F)		 40°C
(105°F)		 38°C
(100°F)		 37°C
(98°F)		 34°C
(93°F)		 29°C
(84°F)
Mean maximum 24°C
(76°F)		 27°C
(82°F)		 30°C
(86°F)		 31°C
(89°F)		 34°C
(93°F)		 36°C
(97°F)		 38°C
(101°F)		 38°C
(100°F)		 37°C
(98°F)		 34°C
(94°F)		 29°C
(84°F)		 26°C
(79°F)
Average high 14°C
(58°F)		 15°C
(60°F)		 22°C
(71°F)		 24°C
(76°F)		 29°C
(84°F)		 32°C
(91°F)		 35°C
(94°F)		 34°C
(94°F)		 31°C
(89°F)		 26°C
(79°F)		 20°C
(68°F)		 17°C
(62°F)
Daily mean 8°C
(47°F)		 10°C
(50°F)		 16°C
(61°F)		 19°C
(66°F)		 24°C
(75°F)		 28°C
(82°F)		 30°C
(86°F)		 29°C
(85°F)		 26°C
(80°F)		 20°C
(68°F)		 14°C
(57°F)		 11°C
(52°F)
Average low 3°C
(38°F)		 5°C
(41°F)		 11°C
(51°F)		 13°C
(56°F)		 19°C
(66°F)		 23°C
(73°F)		 25°C
(77°F)		 25°C
(76°F)		 21°C
(71°F)		 15°C
(59°F)		 8°C
(47°F)		 6°C
(43°F)
Mean minimum -6°C
(22°F)		 -6°C
(22°F)		 1°C
(34°F)		 4°C
(40°F)		 11°C
(52°F)		 19°C
(67°F)		 22°C
(71°F)		 21°C
(71°F)		 15°C
(59°F)		 4°C
(40°F)		 -1°C
(31°F)		 -2°C
(29°F)
Minimum -11°C
(12°F)		 -18°C
(-1°F)		 -6°C
(22°F)		 2°C
(35°F)		 7°C
(45°F)		 16°C
(62°F)		 18°C
(65°F)		 20°C
(68°F)		 10°C
(51°F)		 2°C
(35°F)		 -5°C
(24°F)		 -5°C
(24°F)

Compare climate in Duncanville with other places

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

Monthly average precipitation in Duncanville, Texas, United States §

Duncanville usually has the most precipitation in March, May and October, with an average of 9 rainy days and 136 mm (5.4 inches) of precipitation per month.The driest months in Duncanville are January, July and November. On average, 51 mm (2.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Duncanville, Texas, 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) 55 (2.2) 94 (3.7) 107 (4.2) 106 (4.2) 158 (6.2) 91 (3.6) 44 (1.7) 95 (3.7) 76 (3.0) 143 (5.6) 55 (2.2) 58 (2.3)
Average precipitation days (≥ 1 mm) 7 9 10 9 11 8 7 7 8 8 6 7

Monthly sunshine hours in Duncanville, Texas, United States §

The sunniest months in Duncanville are June, July and August, when the sun shines an average of 11 hours 13 minutes a day.Least sunny months in Duncanville: January, February and December receive an average of 6 hours 20 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Duncanville, Texas, 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 175 175 244 260 284 342 361 329 283 266 238 226
Mean daily daylight hours 10h 15m 11h 1m 12h 0m 13h 0m 13h 51m 14h 16m 14h 2m 13h 17m 12h 19m 11h 19m 10h 26m 10h 0m

Solar UV radiation in Duncanville, Texas, United States §

Duncanville experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 6. For more detailed information, check out our hourly Duncanville UV Index data.

Average daily maximum UV levels by month for Duncanville, Texas, 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) 4 7 8 10 11 11 11 11 10 8 6 4