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Monthly climate in Guymon, Oklahoma, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Guymon features a cold semi-arid climate (BSk).Temperatures typically range between 2 °C (36 °F) and 27 °C (81 °F) through the year, but rarely can drop to -28 °C (-19 °F) or can rise to as high as 43 °C (109 °F).The average annual precipitation amounts to about 440 mm (17.3 inches) and receives 65 rainy days on the 1 mm (0.04 inches) threshold annually.Guymon enjoys an average of 3501 hours of sunshine throughout the year, and daylight varies from 9 hours 40 minutes to 14 hours 36 minutes per day.

Monthly average temperatures in Guymon, Oklahoma, United States §

The warmest months in Guymon are June, July and August, with daily mean temperatures ranging from 25 to 27 °C (77 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 4 °C (36 - 39 °F) throughout the day. On average each year, Guymon experiences 141 days above 25 °C (77.0 °F) and 89 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Guymon, 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
(76°F)		 33°C
(92°F)		 34°C
(93°F)		 33°C
(92°F)		 37°C
(100°F)		 40°C
(105°F)		 43°C
(109°F)		 40°C
(103°F)		 41°C
(105°F)		 36°C
(97°F)		 31°C
(88°F)		 25°C
(77°F)
Mean maximum 21°C
(69°F)		 26°C
(78°F)		 30°C
(86°F)		 32°C
(90°F)		 34°C
(94°F)		 38°C
(100°F)		 39°C
(103°F)		 38°C
(100°F)		 38°C
(100°F)		 34°C
(93°F)		 28°C
(82°F)		 22°C
(71°F)
Average high 10°C
(51°F)		 11°C
(51°F)		 18°C
(64°F)		 21°C
(70°F)		 26°C
(79°F)		 32°C
(90°F)		 34°C
(93°F)		 33°C
(91°F)		 30°C
(87°F)		 22°C
(71°F)		 16°C
(62°F)		 12°C
(54°F)
Daily mean 2°C
(36°F)		 3°C
(37°F)		 9°C
(49°F)		 13°C
(56°F)		 19°C
(66°F)		 25°C
(77°F)		 27°C
(81°F)		 26°C
(78°F)		 23°C
(73°F)		 14°C
(58°F)		 8°C
(47°F)		 4°C
(39°F)
Average low -4°C
(26°F)		 -4°C
(25°F)		 2°C
(37°F)		 6°C
(43°F)		 12°C
(54°F)		 18°C
(65°F)		 20°C
(69°F)		 19°C
(67°F)		 16°C
(61°F)		 8°C
(46°F)		 2°C
(36°F)		 -2°C
(28°F)
Mean minimum -13°C
(9°F)		 -15°C
(5°F)		 -7°C
(20°F)		 -3°C
(27°F)		 3°C
(38°F)		 12°C
(53°F)		 17°C
(62°F)		 15°C
(59°F)		 8°C
(47°F)		 -3°C
(27°F)		 -6°C
(21°F)		 -9°C
(16°F)
Minimum -17°C
(1°F)		 -28°C
(-19°F)		 -14°C
(7°F)		 -7°C
(20°F)		 -4°C
(25°F)		 9°C
(48°F)		 16°C
(61°F)		 13°C
(56°F)		 3°C
(37°F)		 -7°C
(20°F)		 -13°C
(9°F)		 -13°C
(10°F)

Compare climate in Guymon with other places

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

Monthly average precipitation in Guymon, Oklahoma, United States §

Guymon usually has the most precipitation in May, August and October, with an average of 8 rainy days and 61 mm (2.4 inches) of precipitation per month.The driest months in Guymon are January, February and November. On average, 12 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Guymon, 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) 17 (0.7) 12 (0.5) 45 (1.8) 45 (1.8) 80 (3.1) 43 (1.7) 41 (1.6) 49 (1.9) 27 (1.1) 55 (2.2) 9 (0.3) 18 (0.7)
Average precipitation days (≥ 1 mm) 3 2 5 5 11 7 9 8 6 5 2 2

Monthly sunshine hours in Guymon, Oklahoma, United States §

The sunniest months in Guymon are June, July and August, when the sun shines an average of 11 hours 44 minutes a day.Least sunny months in Guymon: January, February and December receive an average of 7 hours 30 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Guymon, 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 191 240 278 302 332 360 373 345 304 261 259 251
Mean daily daylight hours 9h 57m 10h 51m 11h 59m 13h 9m 14h 8m 14h 36m 14h 21m 13h 28m 12h 21m 11h 11m 10h 11m 9h 40m

Solar UV radiation in Guymon, Oklahoma, United States §

Guymon experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, 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 Guymon UV Index data.

Average daily maximum UV levels by month for Guymon, 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 8 10 11 12 12 11 10 7 5 3