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Monthly climate in Heavener, Oklahoma, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Heavener features a humid subtropical climate (Cfa).Temperatures typically range between 5 °C (42 °F) and 27 °C (82 °F) through the year, but rarely can drop to -21 °C (-6 °F) or can rise to as high as 41 °C (105 °F).The average annual precipitation amounts to about 1239 mm (48.8 inches) and receives 114 rainy days on the 1 mm (0.04 inches) threshold annually.Heavener enjoys an average of 3052 hours of sunshine throughout the year, and daylight varies from 9 hours 49 minutes to 14 hours 27 minutes per day.

Monthly average temperatures in Heavener, Oklahoma, United States §

The warmest months in Heavener are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (78 - 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, Heavener experiences 142 days above 25 °C (77.0 °F) and 42 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Heavener, 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 24°C
(75°F)		 29°C
(85°F)		 32°C
(91°F)		 33°C
(91°F)		 34°C
(94°F)		 36°C
(97°F)		 41°C
(105°F)		 38°C
(101°F)		 37°C
(99°F)		 33°C
(92°F)		 29°C
(85°F)		 26°C
(80°F)
Mean maximum 21°C
(70°F)		 25°C
(77°F)		 28°C
(83°F)		 29°C
(85°F)		 32°C
(90°F)		 34°C
(93°F)		 37°C
(99°F)		 36°C
(98°F)		 35°C
(96°F)		 32°C
(90°F)		 25°C
(77°F)		 24°C
(75°F)
Average high 11°C
(51°F)		 13°C
(55°F)		 19°C
(66°F)		 21°C
(71°F)		 26°C
(80°F)		 31°C
(88°F)		 33°C
(91°F)		 32°C
(90°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
(45°F)		 13°C
(55°F)		 16°C
(61°F)		 21°C
(70°F)		 26°C
(78°F)		 27°C
(82°F)		 26°C
(80°F)		 24°C
(76°F)		 17°C
(63°F)		 11°C
(51°F)		 8°C
(47°F)
Average low 0°C
(33°F)		 2°C
(35°F)		 7°C
(45°F)		 10°C
(51°F)		 16°C
(61°F)		 20°C
(69°F)		 22°C
(72°F)		 22°C
(71°F)		 19°C
(66°F)		 12°C
(54°F)		 5°C
(41°F)		 3°C
(38°F)
Mean minimum -9°C
(16°F)		 -9°C
(15°F)		 -2°C
(28°F)		 1°C
(34°F)		 8°C
(48°F)		 16°C
(61°F)		 19°C
(66°F)		 18°C
(65°F)		 12°C
(54°F)		 2°C
(36°F)		 -4°C
(26°F)		 -5°C
(23°F)
Minimum -16°C
(3°F)		 -21°C
(-6°F)		 -9°C
(16°F)		 -1°C
(31°F)		 6°C
(43°F)		 12°C
(55°F)		 16°C
(62°F)		 15°C
(60°F)		 9°C
(48°F)		 -2°C
(29°F)		 -8°C
(19°F)		 -7°C
(20°F)

Compare climate in Heavener with other places

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

Monthly average precipitation in Heavener, Oklahoma, United States §

Heavener usually has the most precipitation in April, May and October, with an average of 11 rainy days and 149 mm (5.9 inches) of precipitation per month.The driest months in Heavener are January, September and November. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Heavener, 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) 74 (2.9) 119 (4.7) 114 (4.5) 137 (5.4) 188 (7.4) 87 (3.4) 82 (3.2) 106 (4.2) 61 (2.4) 123 (4.8) 62 (2.5) 85 (3.4)
Average precipitation days (≥ 1 mm) 8 10 11 11 13 10 10 11 5 10 8 7

Monthly sunshine hours in Heavener, Oklahoma, United States §

The sunniest months in Heavener are June, July and August, when the sun shines an average of 10 hours 49 minutes a day.Least sunny months in Heavener: January, February and March receive an average of 5 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Heavener, 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 157 168 216 242 289 330 348 316 291 250 221 217
Mean daily daylight hours 10h 5m 10h 55m 11h 59m 13h 5m 14h 0m 14h 27m 14h 12m 13h 23m 12h 20m 11h 15m 10h 18m 9h 49m

Solar UV radiation in Heavener, Oklahoma, United States §

Heavener experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the 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 Heavener UV Index data.

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