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Monthly climate in Cullen, Louisiana, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Cullen features a humid subtropical climate (Cfa).Temperatures typically range between 8 °C (47 °F) and 28 °C (84 °F) through the year, but rarely can drop to -20 °C (-4 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 1399 mm (55.1 inches) and receives 125 rainy days on the 1 mm (0.04 inches) threshold annually.Cullen enjoys an average of 2984 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 Cullen, Louisiana, United States §

The warmest months in Cullen are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (81 - 84 °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, Cullen experiences 164 days above 25 °C (77.0 °F) and 20 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cullen, 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 26°C
(79°F)		 28°C
(82°F)		 31°C
(88°F)		 31°C
(88°F)		 35°C
(96°F)		 37°C
(99°F)		 40°C
(104°F)		 39°C
(103°F)		 39°C
(102°F)		 35°C
(96°F)		 29°C
(84°F)		 27°C
(81°F)
Mean maximum 23°C
(74°F)		 26°C
(79°F)		 28°C
(83°F)		 30°C
(86°F)		 33°C
(92°F)		 35°C
(96°F)		 37°C
(99°F)		 37°C
(99°F)		 36°C
(97°F)		 33°C
(91°F)		 27°C
(80°F)		 25°C
(77°F)
Average high 14°C
(57°F)		 15°C
(60°F)		 21°C
(71°F)		 24°C
(75°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(93°F)		 31°C
(89°F)		 25°C
(78°F)		 19°C
(67°F)		 16°C
(61°F)
Daily mean 8°C
(47°F)		 10°C
(50°F)		 16°C
(60°F)		 18°C
(65°F)		 23°C
(74°F)		 27°C
(81°F)		 28°C
(84°F)		 28°C
(83°F)		 26°C
(79°F)		 20°C
(67°F)		 13°C
(55°F)		 11°C
(52°F)
Average low 4°C
(39°F)		 5°C
(42°F)		 10°C
(51°F)		 13°C
(55°F)		 18°C
(65°F)		 22°C
(72°F)		 24°C
(75°F)		 23°C
(75°F)		 21°C
(70°F)		 15°C
(58°F)		 7°C
(46°F)		 6°C
(43°F)
Mean minimum -6°C
(21°F)		 -5°C
(23°F)		 0°C
(33°F)		 3°C
(38°F)		 12°C
(53°F)		 18°C
(65°F)		 20°C
(69°F)		 20°C
(68°F)		 14°C
(58°F)		 5°C
(40°F)		 -1°C
(30°F)		 -2°C
(28°F)
Minimum -14°C
(7°F)		 -20°C
(-4°F)		 -4°C
(25°F)		 1°C
(34°F)		 9°C
(48°F)		 15°C
(59°F)		 18°C
(65°F)		 18°C
(65°F)		 11°C
(52°F)		 -0°C
(32°F)		 -6°C
(21°F)		 -3°C
(27°F)

Compare climate in Cullen with other places

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

Monthly average precipitation in Cullen, Louisiana, United States §

Cullen usually has the most precipitation in February, March and April, with an average of 12 rainy days and 156 mm (6.2 inches) of precipitation per month.The driest months in Cullen are July, September and November. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cullen, 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) 105 (4.1) 154 (6.1) 132 (5.2) 183 (7.2) 132 (5.2) 109 (4.3) 79 (3.1) 100 (3.9) 98 (3.9) 107 (4.2) 66 (2.6) 132 (5.2)
Average precipitation days (≥ 1 mm) 9 13 14 10 13 11 12 9 8 9 8 9

Monthly sunshine hours in Cullen, Louisiana, United States §

The sunniest months in Cullen are June, July and August, when the sun shines an average of 10 hours 33 minutes a day.Least sunny months in Cullen: January, February and December receive an average of 5 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cullen, 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 147 147 216 248 293 315 340 316 278 252 228 198
Mean daily daylight hours 10h 14m 11h 0m 11h 59m 13h 1m 13h 51m 14h 16m 14h 2m 13h 17m 12h 19m 11h 18m 10h 26m 10h 0m

Solar UV radiation in Cullen, Louisiana, United States §

Cullen experiences the highest level of ultraviolet (UV) radiation in April, June and August, when the maximum UV index can reach values of 11 - 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 Cullen UV Index data.

Average daily maximum UV levels by month for Cullen, 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) 4 7 8 11 11 12 11 11 10 8 6 4