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Monthly climate in Copan, Oklahoma, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Copan features a humid subtropical climate (Cfa).Temperatures typically range between 2 °C (37 °F) and 28 °C (82 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 41 °C (106 °F).The average annual precipitation amounts to about 1114 mm (43.9 inches) and receives 102 rainy days on the 1 mm (0.04 inches) threshold annually.Copan enjoys an average of 3148 hours of sunshine throughout the year, and daylight varies from 9 hours 39 minutes to 14 hours 38 minutes per day.

Monthly average temperatures in Copan, Oklahoma, United States §

The warmest months in Copan 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 2 to 5 °C (37 - 42 °F) throughout the day. On average each year, Copan experiences 133 days above 25 °C (77.0 °F) and 68 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Copan, 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 22°C
(72°F)		 29°C
(84°F)		 32°C
(89°F)		 31°C
(88°F)		 34°C
(94°F)		 37°C
(99°F)		 41°C
(106°F)		 37°C
(98°F)		 35°C
(96°F)		 34°C
(93°F)		 26°C
(80°F)		 25°C
(77°F)
Mean maximum 18°C
(65°F)		 23°C
(74°F)		 26°C
(80°F)		 29°C
(85°F)		 32°C
(90°F)		 34°C
(94°F)		 37°C
(99°F)		 36°C
(98°F)		 35°C
(95°F)		 32°C
(90°F)		 24°C
(75°F)		 21°C
(70°F)
Average high 8°C
(47°F)		 10°C
(49°F)		 17°C
(63°F)		 21°C
(69°F)		 25°C
(78°F)		 31°C
(88°F)		 33°C
(92°F)		 32°C
(89°F)		 30°C
(86°F)		 22°C
(71°F)		 15°C
(60°F)		 11°C
(53°F)
Daily mean 2°C
(37°F)		 3°C
(38°F)		 11°C
(51°F)		 14°C
(58°F)		 20°C
(68°F)		 26°C
(79°F)		 28°C
(82°F)		 26°C
(80°F)		 24°C
(75°F)		 16°C
(61°F)		 9°C
(48°F)		 5°C
(42°F)
Average low -2°C
(28°F)		 -2°C
(29°F)		 5°C
(41°F)		 9°C
(48°F)		 15°C
(60°F)		 20°C
(69°F)		 23°C
(73°F)		 21°C
(71°F)		 19°C
(66°F)		 10°C
(51°F)		 3°C
(38°F)		 0°C
(33°F)
Mean minimum -13°C
(9°F)		 -14°C
(6°F)		 -6°C
(22°F)		 -1°C
(30°F)		 6°C
(44°F)		 15°C
(59°F)		 18°C
(65°F)		 16°C
(61°F)		 9°C
(49°F)		 0°C
(32°F)		 -6°C
(21°F)		 -8°C
(18°F)
Minimum -18°C
(0°F)		 -26°C
(-15°F)		 -13°C
(8°F)		 -5°C
(24°F)		 4°C
(40°F)		 11°C
(53°F)		 16°C
(60°F)		 15°C
(59°F)		 6°C
(43°F)		 -3°C
(27°F)		 -11°C
(13°F)		 -11°C
(12°F)

Compare climate in Copan with other places

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

Monthly average precipitation in Copan, Oklahoma, United States §

Copan usually has the most precipitation in March, May and October, with an average of 11 rainy days and 156 mm (6.1 inches) of precipitation per month.The driest months in Copan are February, November and December. On average, 42 mm (1.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Copan, 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) 60 (2.4) 54 (2.1) 108 (4.2) 101 (4.0) 224 (8.8) 96 (3.8) 86 (3.4) 98 (3.9) 78 (3.1) 136 (5.3) 39 (1.6) 32 (1.3)
Average precipitation days (≥ 1 mm) 6 7 10 10 14 7 9 11 7 11 6 4

Monthly sunshine hours in Copan, Oklahoma, United States §

The sunniest months in Copan are June, July and August, when the sun shines an average of 11 hours 5 minutes a day.Least sunny months in Copan: January, February and November receive an average of 6 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Copan, 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 162 188 237 256 283 338 360 321 285 257 227 230
Mean daily daylight hours 9h 56m 10h 50m 11h 59m 13h 10m 14h 9m 14h 38m 14h 22m 13h 29m 12h 21m 11h 11m 10h 10m 9h 39m

Solar UV radiation in Copan, Oklahoma, United States §

Copan 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 Copan UV Index data.

Average daily maximum UV levels by month for Copan, 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) 3 6 7 10 10 11 11 10 9 7 5 3