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Monthly climate in Oswego, Kansas, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Oswego features a humid subtropical climate (Cfa).Temperatures typically range between 2 °C (36 °F) and 27 °C (81 °F) through the year, but rarely can drop to -27 °C (-17 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 1248 mm (49.1 inches) and receives 109 rainy days on the 1 mm (0.04 inches) threshold annually.Oswego enjoys an average of 3089 hours of sunshine throughout the year, and daylight varies from 9 hours 38 minutes to 14 hours 39 minutes per day.

Monthly average temperatures in Oswego, Kansas, United States §

The warmest months in Oswego are June, July and August, with daily mean temperatures ranging from 26 to 27 °C (78 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 2 to 6 °C (36 - 42 °F) throughout the day. On average each year, Oswego experiences 128 days above 25 °C (77.0 °F) and 66 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Oswego, Kansas, 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 21°C
(70°F)		 28°C
(82°F)		 29°C
(85°F)		 32°C
(89°F)		 33°C
(92°F)		 37°C
(99°F)		 38°C
(101°F)		 36°C
(97°F)		 35°C
(95°F)		 32°C
(90°F)		 25°C
(77°F)		 24°C
(75°F)
Mean maximum 18°C
(64°F)		 23°C
(73°F)		 25°C
(78°F)		 29°C
(84°F)		 32°C
(89°F)		 34°C
(94°F)		 36°C
(97°F)		 35°C
(96°F)		 34°C
(94°F)		 32°C
(89°F)		 23°C
(74°F)		 21°C
(69°F)
Average high 7°C
(46°F)		 9°C
(49°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 31°C
(88°F)		 32°C
(90°F)		 31°C
(88°F)		 29°C
(85°F)		 21°C
(71°F)		 15°C
(59°F)		 11°C
(52°F)
Daily mean 2°C
(36°F)		 3°C
(38°F)		 10°C
(51°F)		 14°C
(58°F)		 20°C
(68°F)		 26°C
(78°F)		 27°C
(81°F)		 26°C
(79°F)		 24°C
(75°F)		 16°C
(60°F)		 9°C
(48°F)		 6°C
(42°F)
Average low -2°C
(28°F)		 -2°C
(29°F)		 5°C
(42°F)		 9°C
(48°F)		 15°C
(60°F)		 20°C
(69°F)		 22°C
(73°F)		 21°C
(70°F)		 18°C
(65°F)		 11°C
(51°F)		 3°C
(38°F)		 1°C
(34°F)
Mean minimum -12°C
(10°F)		 -14°C
(7°F)		 -7°C
(20°F)		 -1°C
(30°F)		 7°C
(44°F)		 15°C
(59°F)		 18°C
(64°F)		 16°C
(62°F)		 10°C
(50°F)		 1°C
(33°F)		 -6°C
(21°F)		 -8°C
(18°F)
Minimum -18°C
(-0°F)		 -27°C
(-17°F)		 -15°C
(6°F)		 -5°C
(23°F)		 4°C
(40°F)		 12°C
(54°F)		 16°C
(61°F)		 15°C
(59°F)		 7°C
(45°F)		 -2°C
(28°F)		 -11°C
(12°F)		 -12°C
(10°F)

Compare climate in Oswego with other places

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

Monthly average precipitation in Oswego, Kansas, United States §

Oswego usually has the most precipitation in March, May and October, with an average of 12 rainy days and 164 mm (6.5 inches) of precipitation per month.The driest months in Oswego are February, November and December. On average, 53 mm (2.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Oswego, Kansas, 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) 67 (2.6) 65 (2.6) 128 (5.0) 124 (4.9) 239 (9.4) 96 (3.8) 98 (3.8) 117 (4.6) 94 (3.7) 127 (5.0) 53 (2.1) 40 (1.6)
Average precipitation days (≥ 1 mm) 7 7 11 11 14 8 10 11 7 11 7 5

Monthly sunshine hours in Oswego, Kansas, United States §

The sunniest months in Oswego are June, July and August, when the sun shines an average of 11 hours 1 minutes a day.Least sunny months in Oswego: January, February and November receive an average of 6 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Oswego, Kansas, 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 155 181 223 251 280 337 356 319 289 249 221 223
Mean daily daylight hours 9h 55m 10h 49m 11h 59m 13h 10m 14h 10m 14h 39m 14h 23m 13h 30m 12h 22m 11h 11m 10h 9m 9h 38m

Solar UV radiation in Oswego, Kansas, United States §

Oswego 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, February 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 Oswego UV Index data.

Average daily maximum UV levels by month for Oswego, Kansas, 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 5 7 10 10 11 11 10 9 7 5 3