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Monthly climate in Cottage Grove, Oregon, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Cottage Grove features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 5 °C (40 °F) and 21 °C (69 °F) through the year, but rarely can drop to -11 °C (12 °F) or can rise to as high as 43 °C (109 °F). The average annual precipitation amounts to about 1321 mm (52.0 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Cottage Grove enjoys an average of 2896 hours of sunshine throughout the year, and daylight varies from 8 hours 57 minutes to 15 hours 23 minutes per day.

Monthly average temperatures in Cottage Grove, Oregon, United States §

The warmest months in Cottage Grove are July, August and September, with daily mean temperatures ranging from 17 to 21 °C (63 - 69 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 5 °C (40 - 41 °F) throughout the day. On average each year, Cottage Grove experiences 66 days above 25 °C (77.0 °F) and 45 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Cottage Grove, 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 18°C
(65°F)		 20°C
(69°F)		 23°C
(73°F)		 28°C
(83°F)		 30°C
(86°F)		 43°C
(109°F)		 36°C
(97°F)		 41°C
(106°F)		 37°C
(100°F)		 28°C
(83°F)		 21°C
(70°F)		 19°C
(66°F)
Mean maximum 15°C
(59°F)		 16°C
(61°F)		 20°C
(68°F)		 25°C
(77°F)		 28°C
(82°F)		 33°C
(91°F)		 34°C
(94°F)		 38°C
(100°F)		 33°C
(92°F)		 24°C
(76°F)		 18°C
(65°F)		 15°C
(59°F)
Average high 9°C
(49°F)		 9°C
(48°F)		 12°C
(54°F)		 15°C
(60°F)		 19°C
(66°F)		 23°C
(74°F)		 28°C
(83°F)		 29°C
(84°F)		 24°C
(75°F)		 17°C
(63°F)		 12°C
(54°F)		 8°C
(47°F)
Daily mean 5°C
(41°F)		 5°C
(40°F)		 7°C
(44°F)		 10°C
(49°F)		 13°C
(56°F)		 17°C
(62°F)		 20°C
(69°F)		 21°C
(69°F)		 17°C
(63°F)		 11°C
(52°F)		 7°C
(45°F)		 5°C
(40°F)
Average low 2°C
(35°F)		 1°C
(34°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(46°F)		 10°C
(51°F)		 12°C
(55°F)		 13°C
(55°F)		 10°C
(51°F)		 6°C
(43°F)		 3°C
(38°F)		 1°C
(35°F)
Mean minimum -5°C
(24°F)		 -5°C
(23°F)		 -3°C
(26°F)		 -1°C
(30°F)		 2°C
(36°F)		 5°C
(41°F)		 9°C
(48°F)		 8°C
(47°F)		 5°C
(41°F)		 -0°C
(32°F)		 -3°C
(27°F)		 -4°C
(25°F)
Minimum -11°C
(12°F)		 -11°C
(12°F)		 -9°C
(17°F)		 -2°C
(28°F)		 2°C
(35°F)		 4°C
(39°F)		 7°C
(45°F)		 7°C
(44°F)		 3°C
(38°F)		 -3°C
(27°F)		 -5°C
(23°F)		 -6°C
(22°F)

Compare climate in Cottage Grove with other places

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

Monthly average precipitation in Cottage Grove, Oregon, United States §

Cottage Grove usually has the most precipitation in January, February and December, with an average of 17 rainy days and 183 mm (7.2 inches) of precipitation per month. The driest months in Cottage Grove are June, July and August. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Cottage Grove, 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) 162 (6.4) 209 (8.2) 156 (6.1) 152 (6.0) 72 (2.8) 51 (2.0) 2 (0.1) 7 (0.3) 88 (3.4) 102 (4.0) 144 (5.7) 177 (7.0)
Average precipitation days (≥ 1 mm) 15 18 17 15 10 7 0 1 7 10 13 18

Monthly sunshine hours in Cottage Grove, Oregon, United States §

The sunniest months in Cottage Grove are June, July and August, when the sun shines an average of 11 hours 59 minutes a day. Least sunny months in Cottage Grove: January, February and December receive an average of 3 hours 57 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Cottage Grove, 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 100 132 208 240 307 344 397 361 288 230 157 127
Mean daily daylight hours 9h 19m 10h 29m 11h 58m 13h 28m 14h 45m 15h 23m 15h 2m 13h 53m 12h 26m 10h 56m 9h 37m 8h 57m

Solar UV radiation in Cottage Grove, Oregon, United States §

Cottage Grove experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure. January, November 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 Cottage Grove UV Index data.

Average daily maximum UV levels by month for Cottage Grove, 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 4 6 7 10 10 10 9 8 5 3 2

Detailed Monthly Weather Insights for Cottage Grove, Oregon, United States

Discover in-depth weather details for every month in Cottage Grove. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Cottage Grove's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.