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Monthly climate in Opelousas, Louisiana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Opelousas features a humid subtropical climate (Cfa).Temperatures typically range between 11 °C (53 °F) and 28 °C (83 °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 1535 mm (60.4 inches) and receives 150 rainy days on the 1 mm (0.04 inches) threshold annually.Opelousas enjoys an average of 3174 hours of sunshine throughout the year, and daylight varies from 10 hours 11 minutes to 14 hours 4 minutes per day.

Monthly average temperatures in Opelousas, Louisiana, United States §

The warmest months in Opelousas are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (81 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 11 to 14 °C (53 - 58 °F) throughout the day. On average each year, Opelousas experiences 201 days above 25 °C (77.0 °F) and 8 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Opelousas, Louisiana, 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 29°C
(84°F)		 28°C
(83°F)		 31°C
(87°F)		 32°C
(91°F)		 36°C
(97°F)		 36°C
(97°F)		 39°C
(102°F)		 37°C
(100°F)		 37°C
(99°F)		 37°C
(98°F)		 29°C
(85°F)		 29°C
(85°F)
Mean maximum 25°C
(78°F)		 27°C
(81°F)		 29°C
(84°F)		 30°C
(87°F)		 34°C
(93°F)		 34°C
(94°F)		 36°C
(98°F)		 36°C
(97°F)		 35°C
(96°F)		 33°C
(92°F)		 28°C
(83°F)		 27°C
(81°F)
Average high 17°C
(63°F)		 20°C
(68°F)		 23°C
(74°F)		 26°C
(78°F)		 30°C
(86°F)		 32°C
(89°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(89°F)		 28°C
(83°F)		 22°C
(71°F)		 19°C
(66°F)
Daily mean 11°C
(53°F)		 14°C
(58°F)		 18°C
(65°F)		 20°C
(68°F)		 25°C
(77°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(80°F)		 22°C
(72°F)		 15°C
(60°F)		 13°C
(56°F)
Average low 7°C
(44°F)		 9°C
(49°F)		 13°C
(55°F)		 14°C
(58°F)		 20°C
(67°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 18°C
(64°F)		 10°C
(50°F)		 8°C
(48°F)
Mean minimum -4°C
(26°F)		 -1°C
(30°F)		 2°C
(36°F)		 5°C
(42°F)		 13°C
(56°F)		 19°C
(67°F)		 22°C
(71°F)		 21°C
(70°F)		 17°C
(63°F)		 8°C
(47°F)		 1°C
(34°F)		 -1°C
(30°F)
Minimum -9°C
(16°F)		 -8°C
(18°F)		 -1°C
(30°F)		 3°C
(39°F)		 11°C
(52°F)		 16°C
(62°F)		 20°C
(68°F)		 19°C
(67°F)		 13°C
(55°F)		 3°C
(38°F)		 -4°C
(26°F)		 -2°C
(28°F)

Compare climate in Opelousas with other places

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

Monthly average precipitation in Opelousas, Louisiana, United States §

Opelousas usually has the most precipitation in May, July and August, with an average of 16 rainy days and 169 mm (6.6 inches) of precipitation per month.The driest months in Opelousas are February, March and November. On average, 89 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Opelousas, Louisiana, 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) 109 (4.3) 108 (4.3) 82 (3.2) 155 (6.1) 157 (6.2) 148 (5.8) 178 (7.0) 170 (6.7) 121 (4.8) 116 (4.5) 78 (3.1) 113 (4.5)
Average precipitation days (≥ 1 mm) 9 12 11 11 11 16 18 19 14 9 9 11

Monthly sunshine hours in Opelousas, Louisiana, United States §

The sunniest months in Opelousas are May, July and August, when the sun shines an average of 10 hours 9 minutes a day.Least sunny months in Opelousas: January, February and December receive an average of 6 hours 21 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Opelousas, Louisiana, 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 174 188 259 278 315 301 316 312 279 280 254 215
Mean daily daylight hours 10h 24m 11h 6m 12h 0m 12h 55m 13h 41m 14h 4m 13h 52m 13h 11m 12h 18m 11h 23m 10h 35m 10h 11m

Solar UV radiation in Opelousas, Louisiana, United States §

Opelousas 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 6. For more detailed information, check out our hourly Opelousas UV Index data.

Average daily maximum UV levels by month for Opelousas, Louisiana, 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 10 9 6 5