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Monthly climate in Sour Lake, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Sour Lake features a humid subtropical climate (Cfa).Temperatures typically range between 12 °C (54 °F) and 28 °C (83 °F) through the year, but rarely can drop to -10 °C (15 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1731 mm (68.2 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually.Sour Lake enjoys an average of 3120 hours of sunshine throughout the year, and daylight varies from 10 hours 13 minutes to 14 hours 2 minutes per day.

Monthly average temperatures in Sour Lake, Texas, United States §

The warmest months in Sour Lake 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 12 to 14 °C (54 - 57 °F) throughout the day. On average each year, Sour Lake experiences 194 days above 25 °C (77.0 °F) and 7 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sour Lake, 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
(82°F)		 29°C
(85°F)		 31°C
(87°F)		 32°C
(89°F)		 34°C
(94°F)		 37°C
(99°F)		 37°C
(98°F)		 37°C
(99°F)		 37°C
(98°F)		 33°C
(92°F)		 30°C
(86°F)		 28°C
(82°F)
Mean maximum 25°C
(77°F)		 26°C
(80°F)		 29°C
(84°F)		 30°C
(87°F)		 33°C
(91°F)		 34°C
(94°F)		 36°C
(97°F)		 36°C
(97°F)		 35°C
(95°F)		 32°C
(91°F)		 28°C
(83°F)		 26°C
(80°F)
Average high 17°C
(63°F)		 19°C
(67°F)		 23°C
(74°F)		 25°C
(78°F)		 29°C
(85°F)		 32°C
(89°F)		 33°C
(91°F)		 33°C
(91°F)		 31°C
(88°F)		 27°C
(81°F)		 22°C
(71°F)		 19°C
(67°F)
Daily mean 12°C
(54°F)		 14°C
(57°F)		 18°C
(65°F)		 20°C
(69°F)		 24°C
(76°F)		 27°C
(81°F)		 28°C
(83°F)		 28°C
(83°F)		 26°C
(79°F)		 22°C
(72°F)		 16°C
(61°F)		 14°C
(57°F)
Average low 7°C
(45°F)		 9°C
(49°F)		 13°C
(56°F)		 15°C
(60°F)		 20°C
(68°F)		 23°C
(74°F)		 24°C
(76°F)		 24°C
(75°F)		 22°C
(72°F)		 17°C
(63°F)		 11°C
(52°F)		 9°C
(48°F)
Mean minimum -3°C
(27°F)		 -1°C
(31°F)		 3°C
(38°F)		 6°C
(43°F)		 13°C
(56°F)		 21°C
(69°F)		 21°C
(71°F)		 21°C
(71°F)		 17°C
(62°F)		 7°C
(45°F)		 2°C
(35°F)		 -1°C
(31°F)
Minimum -7°C
(19°F)		 -10°C
(15°F)		 -1°C
(30°F)		 2°C
(37°F)		 9°C
(49°F)		 18°C
(65°F)		 19°C
(67°F)		 20°C
(68°F)		 13°C
(55°F)		 1°C
(35°F)		 -3°C
(27°F)		 -3°C
(27°F)

Compare climate in Sour Lake with other places

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

Monthly average precipitation in Sour Lake, Texas, United States §

Sour Lake usually has the most precipitation in May, August and September, with an average of 16 rainy days and 218 mm (8.6 inches) of precipitation per month.The driest months in Sour Lake are February, March and November. On average, 88 mm (3.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sour Lake, 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) 103 (4.1) 97 (3.8) 94 (3.7) 117 (4.6) 198 (7.8) 179 (7.0) 144 (5.7) 239 (9.4) 216 (8.5) 145 (5.7) 72 (2.8) 126 (5.0)
Average precipitation days (≥ 1 mm) 9 14 12 12 14 19 18 19 15 11 10 11

Monthly sunshine hours in Sour Lake, Texas, United States §

The sunniest months in Sour Lake are May, July and August, when the sun shines an average of 10 hours 18 minutes a day.Least sunny months in Sour Lake: January, February and December receive an average of 5 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sour Lake, 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 166 159 251 264 310 306 330 317 274 275 246 216
Mean daily daylight hours 10h 26m 11h 7m 12h 0m 12h 54m 13h 40m 14h 2m 13h 50m 13h 10m 12h 17m 11h 23m 10h 36m 10h 13m

Solar UV radiation in Sour Lake, Texas, United States §

Sour Lake experiences the highest level of ultraviolet (UV) radiation in June, July 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 Sour Lake UV Index data.

Average daily maximum UV levels by month for Sour Lake, 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 10 11 12 12 11 10 8 6 5