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Monthly climate in Sweeny, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sweeny features a humid subtropical climate (Cfa).Temperatures typically range between 13 °C (57 °F) and 29 °C (85 °F) through the year, but rarely can drop to -9 °C (16 °F) or can rise to as high as 39 °C (102 °F).The average annual precipitation amounts to about 1332 mm (52.4 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Sweeny enjoys an average of 3247 hours of sunshine throughout the year, and daylight varies from 10 hours 18 minutes to 13 hours 57 minutes per day.

Monthly average temperatures in Sweeny, Texas, United States §

The warmest months in Sweeny are June, July and August, with daily mean temperatures ranging from 28 to 29 °C (83 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 13 to 15 °C (57 - 60 °F) throughout the day. On average each year, Sweeny experiences 217 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sweeny, 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 27°C
(81°F)		 29°C
(85°F)		 31°C
(89°F)		 34°C
(94°F)		 34°C
(94°F)		 36°C
(97°F)		 37°C
(100°F)		 39°C
(102°F)		 36°C
(97°F)		 33°C
(92°F)		 31°C
(87°F)		 28°C
(83°F)
Mean maximum 26°C
(78°F)		 27°C
(81°F)		 29°C
(85°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(95°F)		 36°C
(98°F)		 37°C
(98°F)		 34°C
(94°F)		 33°C
(91°F)		 29°C
(85°F)		 27°C
(81°F)
Average high 19°C
(66°F)		 20°C
(69°F)		 24°C
(76°F)		 27°C
(81°F)		 30°C
(87°F)		 32°C
(90°F)		 33°C
(92°F)		 34°C
(93°F)		 31°C
(88°F)		 28°C
(83°F)		 23°C
(74°F)		 20°C
(69°F)
Daily mean 13°C
(57°F)		 15°C
(60°F)		 19°C
(67°F)		 22°C
(72°F)		 26°C
(79°F)		 28°C
(83°F)		 29°C
(84°F)		 29°C
(85°F)		 27°C
(81°F)		 23°C
(74°F)		 18°C
(64°F)		 15°C
(60°F)
Average low 9°C
(48°F)		 11°C
(52°F)		 15°C
(59°F)		 17°C
(64°F)		 22°C
(71°F)		 24°C
(76°F)		 25°C
(78°F)		 25°C
(78°F)		 23°C
(74°F)		 19°C
(66°F)		 13°C
(56°F)		 10°C
(51°F)
Mean minimum -2°C
(29°F)		 0°C
(33°F)		 5°C
(42°F)		 8°C
(48°F)		 16°C
(61°F)		 22°C
(73°F)		 23°C
(73°F)		 23°C
(73°F)		 17°C
(64°F)		 8°C
(46°F)		 4°C
(39°F)		 1°C
(34°F)
Minimum -6°C
(22°F)		 -9°C
(16°F)		 -0°C
(32°F)		 5°C
(41°F)		 13°C
(55°F)		 20°C
(68°F)		 21°C
(69°F)		 22°C
(72°F)		 14°C
(57°F)		 3°C
(38°F)		 -0°C
(32°F)		 -1°C
(31°F)

Compare climate in Sweeny with other places

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

Monthly average precipitation in Sweeny, Texas, United States §

Sweeny usually has the most precipitation in June, August and September, with an average of 16 rainy days and 167 mm (6.6 inches) of precipitation per month.The driest months in Sweeny are February, March and April. On average, 70 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sweeny, 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) 75 (2.9) 68 (2.7) 70 (2.8) 71 (2.8) 147 (5.8) 159 (6.3) 151 (6.0) 169 (6.6) 174 (6.9) 81 (3.2) 78 (3.1) 88 (3.5)
Average precipitation days (≥ 1 mm) 8 10 10 11 14 16 17 17 17 12 9 9

Monthly sunshine hours in Sweeny, Texas, United States §

The sunniest months in Sweeny are June, July and August, when the sun shines an average of 10 hours 37 minutes a day.Least sunny months in Sweeny: January, February and December receive an average of 6 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sweeny, 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 178 178 260 280 317 322 328 326 278 282 259 234
Mean daily daylight hours 10h 30m 11h 9m 12h 0m 12h 52m 13h 36m 13h 57m 13h 45m 13h 7m 12h 17m 11h 25m 10h 40m 10h 18m

Solar UV radiation in Sweeny, Texas, United States §

Sweeny experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 12 - 12, 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 7. For more detailed information, check out our hourly Sweeny UV Index data.

Average daily maximum UV levels by month for Sweeny, 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) 5 8 9 11 11 12 12 12 11 9 7 5