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Monthly climate in Baytown, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Baytown features a humid subtropical climate (Cfa).Temperatures typically range between 12 °C (55 °F) and 28 °C (83 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 37 °C (99 °F).The average annual precipitation amounts to about 1647 mm (64.8 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually.Baytown enjoys an average of 3180 hours of sunshine throughout the year, and daylight varies from 10 hours 14 minutes to 14 hours 1 minutes per day.

Monthly average temperatures in Baytown, Texas, United States §

The warmest months in Baytown are June, July and August, with daily mean temperatures ranging from 27 to 28 °C (82 - 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 (55 - 58 °F) throughout the day. On average each year, Baytown experiences 200 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Baytown, 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 28°C
(82°F)		 30°C
(86°F)		 29°C
(85°F)		 32°C
(90°F)		 33°C
(93°F)		 35°C
(95°F)		 36°C
(98°F)		 37°C
(99°F)		 37°C
(99°F)		 33°C
(92°F)		 30°C
(87°F)		 28°C
(82°F)
Mean maximum 25°C
(78°F)		 26°C
(80°F)		 28°C
(83°F)		 30°C
(87°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(96°F)		 35°C
(96°F)		 35°C
(95°F)		 32°C
(90°F)		 29°C
(84°F)		 27°C
(80°F)
Average high 18°C
(64°F)		 19°C
(67°F)		 23°C
(74°F)		 25°C
(78°F)		 29°C
(84°F)		 31°C
(89°F)		 32°C
(90°F)		 33°C
(91°F)		 31°C
(88°F)		 27°C
(82°F)		 22°C
(72°F)		 19°C
(67°F)
Daily mean 12°C
(55°F)		 14°C
(58°F)		 19°C
(66°F)		 21°C
(70°F)		 25°C
(77°F)		 27°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(80°F)		 22°C
(73°F)		 17°C
(62°F)		 14°C
(58°F)
Average low 8°C
(46°F)		 10°C
(51°F)		 14°C
(58°F)		 16°C
(61°F)		 21°C
(70°F)		 24°C
(75°F)		 25°C
(77°F)		 25°C
(77°F)		 23°C
(73°F)		 18°C
(65°F)		 12°C
(54°F)		 10°C
(50°F)
Mean minimum -2°C
(28°F)		 -0°C
(31°F)		 4°C
(39°F)		 7°C
(45°F)		 14°C
(58°F)		 22°C
(71°F)		 22°C
(72°F)		 22°C
(72°F)		 17°C
(62°F)		 7°C
(46°F)		 3°C
(37°F)		 1°C
(33°F)
Minimum -7°C
(20°F)		 -12°C
(11°F)		 -1°C
(31°F)		 3°C
(38°F)		 11°C
(52°F)		 18°C
(66°F)		 20°C
(67°F)		 21°C
(71°F)		 13°C
(56°F)		 2°C
(37°F)		 -1°C
(30°F)		 -2°C
(29°F)

Compare climate in Baytown with other places

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

Monthly average precipitation in Baytown, Texas, United States §

Baytown usually has the most precipitation in May, August and September, with an average of 17 rainy days and 208 mm (8.2 inches) of precipitation per month.The driest months in Baytown are January, March and November. On average, 85 mm (3.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Baytown, 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) 86 (3.4) 98 (3.8) 87 (3.4) 108 (4.3) 179 (7.1) 174 (6.9) 155 (6.1) 227 (8.9) 219 (8.6) 118 (4.7) 84 (3.3) 112 (4.4)
Average precipitation days (≥ 1 mm) 9 13 11 11 15 18 18 20 17 12 10 9

Monthly sunshine hours in Baytown, Texas, United States §

The sunniest months in Baytown are June, July and August, when the sun shines an average of 10 hours 31 minutes a day.Least sunny months in Baytown: January, February and December receive an average of 6 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Baytown, 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 173 168 254 272 309 317 327 322 278 280 252 222
Mean daily daylight hours 10h 27m 11h 8m 12h 0m 12h 54m 13h 39m 14h 1m 13h 49m 13h 9m 12h 17m 11h 24m 10h 38m 10h 14m

Solar UV radiation in Baytown, Texas, United States §

Baytown experiences the highest level of ultraviolet (UV) radiation in April, June and July, 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 7. For more detailed information, check out our hourly Baytown UV Index data.

Average daily maximum UV levels by month for Baytown, 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 11 10 9 7 5