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Monthly climate in Haileyville, Oklahoma, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Haileyville features a humid subtropical climate (Cfa).Temperatures typically range between 5 °C (42 °F) and 28 °C (82 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 42 °C (108 °F).The average annual precipitation amounts to about 1261 mm (49.7 inches) and receives 109 rainy days on the 1 mm (0.04 inches) threshold annually.Haileyville enjoys an average of 3119 hours of sunshine throughout the year, and daylight varies from 9 hours 50 minutes to 14 hours 26 minutes per day.

Monthly average temperatures in Haileyville, Oklahoma, United States §

The warmest months in Haileyville are June, July and August, with daily mean temperatures ranging from 26 to 28 °C (79 - 82 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 8 °C (42 - 47 °F) throughout the day. On average each year, Haileyville experiences 139 days above 25 °C (77.0 °F) and 37 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Haileyville, Oklahoma, 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 25°C
(77°F)		 29°C
(85°F)		 32°C
(90°F)		 33°C
(92°F)		 35°C
(94°F)		 37°C
(98°F)		 42°C
(108°F)		 38°C
(100°F)		 38°C
(101°F)		 32°C
(91°F)		 29°C
(85°F)		 26°C
(78°F)
Mean maximum 21°C
(71°F)		 24°C
(76°F)		 28°C
(82°F)		 29°C
(84°F)		 32°C
(90°F)		 34°C
(94°F)		 38°C
(100°F)		 37°C
(99°F)		 35°C
(96°F)		 32°C
(89°F)		 25°C
(77°F)		 23°C
(74°F)
Average high 11°C
(52°F)		 12°C
(54°F)		 19°C
(66°F)		 21°C
(71°F)		 26°C
(79°F)		 31°C
(88°F)		 33°C
(92°F)		 32°C
(91°F)		 30°C
(87°F)		 23°C
(74°F)		 17°C
(63°F)		 14°C
(57°F)
Daily mean 5°C
(42°F)		 7°C
(44°F)		 13°C
(56°F)		 16°C
(61°F)		 21°C
(70°F)		 26°C
(79°F)		 28°C
(82°F)		 27°C
(81°F)		 24°C
(76°F)		 17°C
(63°F)		 11°C
(52°F)		 8°C
(47°F)
Average low 1°C
(33°F)		 2°C
(35°F)		 8°C
(46°F)		 11°C
(51°F)		 16°C
(62°F)		 21°C
(70°F)		 23°C
(73°F)		 22°C
(72°F)		 19°C
(67°F)		 12°C
(54°F)		 5°C
(42°F)		 4°C
(39°F)
Mean minimum -9°C
(16°F)		 -9°C
(15°F)		 -2°C
(29°F)		 1°C
(35°F)		 9°C
(48°F)		 17°C
(63°F)		 20°C
(68°F)		 19°C
(66°F)		 12°C
(55°F)		 3°C
(37°F)		 -2°C
(28°F)		 -4°C
(25°F)
Minimum -15°C
(5°F)		 -23°C
(-9°F)		 -9°C
(15°F)		 -2°C
(29°F)		 6°C
(44°F)		 14°C
(58°F)		 18°C
(64°F)		 17°C
(63°F)		 9°C
(48°F)		 -1°C
(31°F)		 -8°C
(18°F)		 -7°C
(20°F)

Compare climate in Haileyville with other places

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

Monthly average precipitation in Haileyville, Oklahoma, United States §

Haileyville usually has the most precipitation in April, May and October, with an average of 11 rainy days and 156 mm (6.2 inches) of precipitation per month.The driest months in Haileyville are January, July and November. On average, 69 mm (2.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Haileyville, Oklahoma, 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) 72 (2.8) 106 (4.2) 112 (4.4) 127 (5.0) 193 (7.6) 87 (3.4) 75 (3.0) 103 (4.1) 95 (3.7) 149 (5.9) 60 (2.4) 83 (3.3)
Average precipitation days (≥ 1 mm) 7 8 11 10 13 8 9 11 7 10 7 8

Monthly sunshine hours in Haileyville, Oklahoma, United States §

The sunniest months in Haileyville are June, July and August, when the sun shines an average of 11 hours 3 minutes a day.Least sunny months in Haileyville: January, February and December receive an average of 6 hours 11 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Haileyville, Oklahoma, 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 166 174 227 250 291 336 353 327 285 255 228 222
Mean daily daylight hours 10h 6m 10h 55m 11h 59m 13h 5m 13h 59m 14h 26m 14h 12m 13h 23m 12h 20m 11h 15m 10h 18m 9h 50m

Solar UV radiation in Haileyville, Oklahoma, United States §

Haileyville experiences the highest level of ultraviolet (UV) radiation in April, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure.January, November and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Haileyville UV Index data.

Average daily maximum UV levels by month for Haileyville, Oklahoma, 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 7 10 10 11 11 10 9 7 5 4