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Monthly climate in Saint Jo, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Saint Jo features a humid subtropical climate (Cfa).Temperatures typically range between 7 °C (44 °F) and 29 °C (85 °F) through the year, but rarely can drop to -21 °C (-5 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 904 mm (35.6 inches) and receives 89 rainy days on the 1 mm (0.04 inches) threshold annually.Saint Jo enjoys an average of 3236 hours of sunshine throughout the year, and daylight varies from 9 hours 56 minutes to 14 hours 20 minutes per day.

Monthly average temperatures in Saint Jo, Texas, United States §

The warmest months in Saint Jo are June, July and August, with daily mean temperatures ranging from 27 to 29 °C (81 - 85 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 7 to 9 °C (44 - 49 °F) throughout the day. On average each year, Saint Jo experiences 162 days above 25 °C (77.0 °F) and 30 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint Jo, 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 26°C
(79°F)		 31°C
(88°F)		 32°C
(91°F)		 34°C
(93°F)		 37°C
(99°F)		 38°C
(101°F)		 43°C
(109°F)		 41°C
(106°F)		 38°C
(100°F)		 35°C
(95°F)		 31°C
(87°F)		 28°C
(83°F)
Mean maximum 22°C
(73°F)		 27°C
(81°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(94°F)		 36°C
(97°F)		 39°C
(103°F)		 39°C
(102°F)		 36°C
(97°F)		 33°C
(92°F)		 27°C
(80°F)		 25°C
(77°F)
Average high 13°C
(55°F)		 14°C
(58°F)		 21°C
(69°F)		 24°C
(75°F)		 28°C
(83°F)		 32°C
(90°F)		 35°C
(95°F)		 34°C
(94°F)		 31°C
(88°F)		 25°C
(77°F)		 19°C
(66°F)		 15°C
(60°F)
Daily mean 7°C
(44°F)		 8°C
(46°F)		 14°C
(58°F)		 17°C
(64°F)		 23°C
(73°F)		 27°C
(81°F)		 29°C
(85°F)		 29°C
(84°F)		 25°C
(78°F)		 19°C
(66°F)		 12°C
(54°F)		 9°C
(49°F)
Average low 1°C
(35°F)		 3°C
(37°F)		 9°C
(48°F)		 12°C
(53°F)		 18°C
(64°F)		 22°C
(72°F)		 24°C
(76°F)		 24°C
(75°F)		 20°C
(69°F)		 13°C
(56°F)		 7°C
(44°F)		 4°C
(40°F)
Mean minimum -8°C
(17°F)		 -8°C
(17°F)		 -1°C
(31°F)		 2°C
(36°F)		 9°C
(49°F)		 18°C
(65°F)		 20°C
(69°F)		 20°C
(68°F)		 13°C
(56°F)		 2°C
(36°F)		 -2°C
(29°F)		 -4°C
(25°F)
Minimum -14°C
(6°F)		 -21°C
(-5°F)		 -8°C
(17°F)		 -1°C
(30°F)		 6°C
(44°F)		 15°C
(60°F)		 18°C
(65°F)		 19°C
(66°F)		 9°C
(49°F)		 0°C
(33°F)		 -7°C
(20°F)		 -8°C
(18°F)

Compare climate in Saint Jo with other places

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

Monthly average precipitation in Saint Jo, Texas, United States §

Saint Jo usually has the most precipitation in May, September and October, with an average of 9 rainy days and 108 mm (4.2 inches) of precipitation per month.The driest months in Saint Jo are January, July and November. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint Jo, 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) 47 (1.9) 72 (2.8) 87 (3.4) 87 (3.4) 119 (4.7) 79 (3.1) 36 (1.4) 77 (3.0) 90 (3.6) 114 (4.5) 44 (1.7) 51 (2.0)
Average precipitation days (≥ 1 mm) 6 7 9 8 12 6 7 8 7 8 5 6

Monthly sunshine hours in Saint Jo, Texas, United States §

The sunniest months in Saint Jo are June, July and August, when the sun shines an average of 11 hours 19 minutes a day.Least sunny months in Saint Jo: January, February and December receive an average of 6 hours 34 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint Jo, 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 179 188 248 264 296 346 361 333 282 267 237 230
Mean daily daylight hours 10h 11m 10h 58m 11h 59m 13h 2m 13h 54m 14h 20m 14h 6m 13h 19m 12h 19m 11h 17m 10h 23m 9h 56m

Solar UV radiation in Saint Jo, Texas, United States §

Saint Jo experiences the highest level of ultraviolet (UV) radiation in May, July and August, when the maximum UV index can reach values of 11 - 11, which corresponds to the Extreme category of sun exposure.January, February 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 Saint Jo UV Index data.

Average daily maximum UV levels by month for Saint Jo, 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) 4 6 8 10 11 11 11 11 10 8 6 4