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Monthly climate in Idalou, Texas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Idalou features a cold semi-arid climate (BSk).Temperatures typically range between 5 °C (41 °F) and 27 °C (81 °F) through the year, but rarely can drop to -19 °C (-1 °F) or can rise to as high as 42 °C (107 °F).The average annual precipitation amounts to about 415 mm (16.3 inches) and receives 57 rainy days on the 1 mm (0.04 inches) threshold annually.Idalou enjoys an average of 3505 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 21 minutes per day.

Monthly average temperatures in Idalou, Texas, United States §

The warmest months in Idalou are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 7 °C (41 - 44 °F) throughout the day. On average each year, Idalou experiences 157 days above 25 °C (77.0 °F) and 61 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Idalou, 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)		 32°C
(90°F)		 33°C
(92°F)		 34°C
(94°F)		 40°C
(104°F)		 41°C
(106°F)		 42°C
(107°F)		 41°C
(106°F)		 36°C
(98°F)		 36°C
(97°F)		 30°C
(86°F)		 26°C
(79°F)
Mean maximum 23°C
(73°F)		 26°C
(80°F)		 31°C
(87°F)		 33°C
(92°F)		 37°C
(98°F)		 38°C
(101°F)		 38°C
(100°F)		 38°C
(100°F)		 35°C
(96°F)		 33°C
(91°F)		 28°C
(82°F)		 23°C
(73°F)
Average high 12°C
(55°F)		 14°C
(58°F)		 20°C
(68°F)		 24°C
(75°F)		 29°C
(84°F)		 32°C
(90°F)		 33°C
(92°F)		 33°C
(91°F)		 29°C
(85°F)		 23°C
(74°F)		 18°C
(65°F)		 14°C
(58°F)
Daily mean 5°C
(41°F)		 6°C
(43°F)		 12°C
(54°F)		 16°C
(61°F)		 21°C
(71°F)		 26°C
(78°F)		 27°C
(81°F)		 27°C
(80°F)		 23°C
(74°F)		 16°C
(61°F)		 10°C
(51°F)		 7°C
(44°F)
Average low -2°C
(29°F)		 -1°C
(31°F)		 5°C
(42°F)		 8°C
(47°F)		 14°C
(58°F)		 19°C
(67°F)		 21°C
(70°F)		 20°C
(69°F)		 17°C
(62°F)		 10°C
(49°F)		 4°C
(39°F)		 0°C
(33°F)
Mean minimum -11°C
(13°F)		 -11°C
(12°F)		 -4°C
(25°F)		 -0°C
(32°F)		 6°C
(43°F)		 15°C
(60°F)		 17°C
(63°F)		 16°C
(60°F)		 10°C
(51°F)		 -2°C
(29°F)		 -4°C
(25°F)		 -7°C
(19°F)
Minimum -15°C
(6°F)		 -19°C
(-1°F)		 -10°C
(15°F)		 -3°C
(27°F)		 2°C
(36°F)		 10°C
(51°F)		 16°C
(61°F)		 13°C
(56°F)		 4°C
(40°F)		 -5°C
(22°F)		 -8°C
(17°F)		 -10°C
(14°F)

Compare climate in Idalou with other places

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

Monthly average precipitation in Idalou, Texas, United States §

Idalou usually has the most precipitation in May, September and October, with an average of 6 rainy days and 57 mm (2.2 inches) of precipitation per month.The driest months in Idalou are February, November and December. On average, 15 mm (0.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Idalou, 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) 17 (0.6) 12 (0.5) 44 (1.7) 31 (1.2) 64 (2.5) 47 (1.9) 28 (1.1) 33 (1.3) 57 (2.2) 51 (2.0) 16 (0.6) 16 (0.6)
Average precipitation days (≥ 1 mm) 2 2 4 4 8 8 6 7 6 5 3 2

Monthly sunshine hours in Idalou, Texas, United States §

The sunniest months in Idalou are June, July and August, when the sun shines an average of 11 hours 41 minutes a day.Least sunny months in Idalou: January, February and November receive an average of 7 hours 35 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Idalou, 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 203 232 275 307 335 355 372 347 295 277 246 255
Mean daily daylight hours 10h 10m 10h 58m 11h 59m 13h 2m 13h 55m 14h 21m 14h 7m 13h 20m 12h 19m 11h 17m 10h 23m 9h 55m

Solar UV radiation in Idalou, Texas, United States §

Idalou 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 Idalou UV Index data.

Average daily maximum UV levels by month for Idalou, 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 7 9 11 11 12 12 12 10 8 6 4