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Monthly climate in Columbia City, Oregon, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Columbia City features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 4 °C (39 °F) and 19 °C (67 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 44 °C (112 °F).The average annual precipitation amounts to about 1850 mm (72.9 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually.Columbia City enjoys an average of 2620 hours of sunshine throughout the year, and daylight varies from 8 hours 42 minutes to 15 hours 39 minutes per day.

Monthly average temperatures in Columbia City, Oregon, United States §

The warmest months in Columbia City are July, August and September, with daily mean temperatures ranging from 16 to 19 °C (61 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 4 to 5 °C (39 - 40 °F) throughout the day. On average each year, Columbia City experiences 45 days above 25 °C (77.0 °F) and 41 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Columbia City, Oregon, 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 14°C
(58°F)		 16°C
(61°F)		 22°C
(72°F)		 30°C
(86°F)		 31°C
(89°F)		 44°C
(112°F)		 36°C
(98°F)		 38°C
(101°F)		 35°C
(94°F)		 25°C
(77°F)		 17°C
(64°F)		 14°C
(57°F)
Mean maximum 12°C
(54°F)		 13°C
(56°F)		 18°C
(65°F)		 24°C
(76°F)		 28°C
(83°F)		 33°C
(91°F)		 33°C
(92°F)		 36°C
(97°F)		 31°C
(89°F)		 21°C
(71°F)		 16°C
(61°F)		 12°C
(54°F)
Average high 8°C
(46°F)		 7°C
(46°F)		 11°C
(52°F)		 15°C
(58°F)		 19°C
(66°F)		 22°C
(71°F)		 25°C
(78°F)		 26°C
(80°F)		 22°C
(72°F)		 15°C
(60°F)		 10°C
(51°F)		 7°C
(45°F)
Daily mean 5°C
(40°F)		 4°C
(39°F)		 7°C
(44°F)		 10°C
(49°F)		 13°C
(56°F)		 16°C
(61°F)		 19°C
(66°F)		 19°C
(67°F)		 16°C
(61°F)		 10°C
(51°F)		 7°C
(45°F)		 4°C
(40°F)
Average low 2°C
(36°F)		 1°C
(34°F)		 3°C
(37°F)		 5°C
(41°F)		 8°C
(47°F)		 11°C
(51°F)		 12°C
(54°F)		 13°C
(56°F)		 11°C
(52°F)		 6°C
(43°F)		 4°C
(39°F)		 2°C
(36°F)
Mean minimum -5°C
(24°F)		 -6°C
(22°F)		 -2°C
(28°F)		 -0°C
(32°F)		 3°C
(38°F)		 6°C
(43°F)		 9°C
(49°F)		 9°C
(48°F)		 6°C
(43°F)		 -1°C
(31°F)		 -2°C
(29°F)		 -5°C
(24°F)
Minimum -11°C
(12°F)		 -9°C
(16°F)		 -4°C
(26°F)		 -2°C
(29°F)		 2°C
(36°F)		 6°C
(42°F)		 7°C
(46°F)		 8°C
(47°F)		 5°C
(41°F)		 -3°C
(27°F)		 -3°C
(27°F)		 -9°C
(17°F)

Compare climate in Columbia City with other places

Compare temperature, precipitation, sunshine, UV index in Columbia City, Oregon, United States with other places around the world.

Monthly average precipitation in Columbia City, Oregon, United States §

Columbia City usually has the most precipitation in January, November and December, with an average of 18 rainy days and 254 mm (10.0 inches) of precipitation per month.The driest months in Columbia City are June, July and August. On average, 34 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Columbia City, Oregon, 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) 246 (9.7) 241 (9.5) 191 (7.5) 164 (6.5) 87 (3.4) 77 (3.0) 12 (0.5) 13 (0.5) 115 (4.5) 190 (7.5) 253 (10.0) 262 (10.3)
Average precipitation days (≥ 1 mm) 17 20 17 16 11 9 3 3 10 14 18 20

Monthly sunshine hours in Columbia City, Oregon, United States §

The sunniest months in Columbia City are June, July and August, when the sun shines an average of 10 hours 59 minutes a day.Least sunny months in Columbia City: January, February and December receive an average of 3 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Columbia City, Oregon, 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 84 119 193 223 284 313 367 330 264 204 127 108
Mean daily daylight hours 9h 6m 10h 22m 11h 57m 13h 34m 14h 58m 15h 39m 15h 16m 14h 2m 12h 28m 10h 51m 9h 26m 8h 42m

Solar UV radiation in Columbia City, Oregon, United States §

Columbia City experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Columbia City UV Index data.

Average daily maximum UV levels by month for Columbia City, Oregon, 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) 2 3 5 7 9 10 10 8 7 5 3 2