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Monthly climate in Stilwell, Oklahoma, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Stilwell features a humid subtropical climate (Cfa).Temperatures typically range between 4 °C (39 °F) and 27 °C (81 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 40 °C (104 °F).The average annual precipitation amounts to about 1437 mm (56.6 inches) and receives 120 rainy days on the 1 mm (0.04 inches) threshold annually.Stilwell enjoys an average of 3069 hours of sunshine throughout the year, and daylight varies from 9 hours 45 minutes to 14 hours 31 minutes per day.

Monthly average temperatures in Stilwell, Oklahoma, United States §

The warmest months in Stilwell 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 4 to 7 °C (39 - 45 °F) throughout the day. On average each year, Stilwell experiences 129 days above 25 °C (77.0 °F) and 50 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Stilwell, 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 23°C
(73°F)		 28°C
(83°F)		 32°C
(90°F)		 32°C
(89°F)		 34°C
(93°F)		 35°C
(96°F)		 40°C
(104°F)		 36°C
(98°F)		 37°C
(99°F)		 32°C
(90°F)		 28°C
(83°F)		 24°C
(76°F)
Mean maximum 19°C
(67°F)		 23°C
(73°F)		 27°C
(81°F)		 29°C
(84°F)		 31°C
(88°F)		 33°C
(92°F)		 36°C
(98°F)		 35°C
(95°F)		 34°C
(94°F)		 31°C
(88°F)		 24°C
(75°F)		 22°C
(72°F)
Average high 9°C
(49°F)		 11°C
(52°F)		 17°C
(64°F)		 20°C
(69°F)		 25°C
(78°F)		 30°C
(87°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(85°F)		 22°C
(72°F)		 16°C
(61°F)		 12°C
(54°F)
Daily mean 4°C
(39°F)		 5°C
(42°F)		 12°C
(53°F)		 15°C
(59°F)		 20°C
(69°F)		 25°C
(77°F)		 27°C
(81°F)		 26°C
(79°F)		 24°C
(75°F)		 16°C
(62°F)		 10°C
(50°F)		 7°C
(45°F)
Average low -1°C
(31°F)		 0°C
(33°F)		 6°C
(44°F)		 9°C
(49°F)		 15°C
(60°F)		 20°C
(69°F)		 22°C
(72°F)		 21°C
(71°F)		 19°C
(66°F)		 11°C
(53°F)		 4°C
(40°F)		 2°C
(37°F)
Mean minimum -10°C
(14°F)		 -11°C
(12°F)		 -4°C
(25°F)		 -0°C
(32°F)		 7°C
(46°F)		 15°C
(59°F)		 18°C
(66°F)		 17°C
(63°F)		 11°C
(52°F)		 2°C
(35°F)		 -4°C
(25°F)		 -5°C
(23°F)
Minimum -17°C
(2°F)		 -23°C
(-9°F)		 -12°C
(10°F)		 -2°C
(28°F)		 5°C
(41°F)		 12°C
(54°F)		 16°C
(62°F)		 15°C
(60°F)		 8°C
(46°F)		 -2°C
(29°F)		 -9°C
(16°F)		 -7°C
(19°F)

Compare climate in Stilwell with other places

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

Monthly average precipitation in Stilwell, Oklahoma, United States §

Stilwell usually has the most precipitation in April, May and October, with an average of 11 rainy days and 177 mm (7.0 inches) of precipitation per month.The driest months in Stilwell are June, September and November. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Stilwell, 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) 91 (3.6) 108 (4.3) 138 (5.4) 163 (6.4) 208 (8.2) 80 (3.2) 104 (4.1) 142 (5.6) 81 (3.2) 161 (6.3) 75 (2.9) 87 (3.4)
Average precipitation days (≥ 1 mm) 8 11 14 11 13 11 9 13 5 10 8 7

Monthly sunshine hours in Stilwell, Oklahoma, United States §

The sunniest months in Stilwell are June, July and August, when the sun shines an average of 10 hours 51 minutes a day.Least sunny months in Stilwell: January, February and March receive an average of 6 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Stilwell, 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 158 173 219 245 286 331 350 317 293 249 224 220
Mean daily daylight hours 10h 1m 10h 53m 11h 59m 13h 7m 14h 4m 14h 31m 14h 16m 13h 26m 12h 21m 11h 13m 10h 15m 9h 45m

Solar UV radiation in Stilwell, Oklahoma, United States §

Stilwell 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 Stilwell UV Index data.

Average daily maximum UV levels by month for Stilwell, 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