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Monthly climate in Mill City, Oregon, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Mill City features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 3 °C (37 °F) and 20 °C (68 °F) through the year, but rarely can drop to -16 °C (3 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 1911 mm (75.2 inches) and receives 157 rainy days on the 1 mm (0.04 inches) threshold annually. Mill City enjoys an average of 2824 hours of sunshine throughout the year, and daylight varies from 8 hours 50 minutes to 15 hours 30 minutes per day.

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

The warmest months in Mill City are July, August and September, with daily mean temperatures ranging from 16 to 20 °C (60 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 3 to 4 °C (37 - 39 °F) throughout the day. On average each year, Mill City experiences 48 days above 25 °C (77.0 °F) and 63 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Mill 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 15°C
(60°F)		 17°C
(62°F)		 20°C
(68°F)		 26°C
(79°F)		 30°C
(86°F)		 43°C
(110°F)		 36°C
(96°F)		 40°C
(104°F)		 34°C
(94°F)		 25°C
(78°F)		 19°C
(67°F)		 17°C
(63°F)
Mean maximum 13°C
(55°F)		 13°C
(56°F)		 17°C
(63°F)		 23°C
(74°F)		 26°C
(80°F)		 32°C
(90°F)		 33°C
(92°F)		 36°C
(97°F)		 31°C
(88°F)		 22°C
(72°F)		 17°C
(62°F)		 13°C
(56°F)
Average high 7°C
(45°F)		 7°C
(44°F)		 10°C
(50°F)		 13°C
(56°F)		 17°C
(63°F)		 21°C
(70°F)		 26°C
(79°F)		 27°C
(81°F)		 22°C
(72°F)		 15°C
(59°F)		 10°C
(51°F)		 7°C
(44°F)
Daily mean 4°C
(39°F)		 3°C
(37°F)		 5°C
(41°F)		 8°C
(47°F)		 12°C
(54°F)		 15°C
(60°F)		 19°C
(67°F)		 20°C
(68°F)		 16°C
(60°F)		 10°C
(50°F)		 6°C
(43°F)		 3°C
(38°F)
Average low 1°C
(34°F)		 -1°C
(31°F)		 1°C
(34°F)		 3°C
(38°F)		 6°C
(44°F)		 9°C
(49°F)		 12°C
(53°F)		 12°C
(54°F)		 10°C
(50°F)		 5°C
(41°F)		 3°C
(37°F)		 1°C
(34°F)
Mean minimum -7°C
(19°F)		 -9°C
(16°F)		 -4°C
(24°F)		 -2°C
(28°F)		 1°C
(34°F)		 4°C
(40°F)		 7°C
(46°F)		 7°C
(44°F)		 4°C
(39°F)		 -2°C
(29°F)		 -4°C
(25°F)		 -6°C
(22°F)
Minimum -16°C
(3°F)		 -16°C
(3°F)		 -9°C
(16°F)		 -4°C
(26°F)		 0°C
(33°F)		 4°C
(39°F)		 5°C
(41°F)		 6°C
(43°F)		 3°C
(37°F)		 -4°C
(26°F)		 -7°C
(20°F)		 -8°C
(18°F)

Compare climate in Mill City with other places

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

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

Mill City usually has the most precipitation in February, November and December, with an average of 19 rainy days and 265 mm (10.4 inches) of precipitation per month. The driest months in Mill City are June, July and August. On average, 33 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Mill 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) 230 (9.0) 290 (11.4) 198 (7.8) 193 (7.6) 95 (3.7) 81 (3.2) 7 (0.3) 10 (0.4) 117 (4.6) 185 (7.3) 230 (9.1) 275 (10.8)
Average precipitation days (≥ 1 mm) 17 21 19 16 12 9 2 2 8 13 17 21

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

The sunniest months in Mill City are June, July and August, when the sun shines an average of 11 hours 49 minutes a day. Least sunny months in Mill City: January, February and December receive an average of 3 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Mill 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 99 124 202 242 298 334 396 356 274 225 149 120
Mean daily daylight hours 9h 13m 10h 26m 11h 57m 13h 31m 14h 51m 15h 30m 15h 8m 13h 57m 12h 27m 10h 54m 9h 32m 8h 50m

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

Mill City 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 Mill City UV Index data.

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

Detailed Monthly Weather Insights for Mill City, Oregon, United States

Discover in-depth weather details for every month in Mill City. 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 Mill City'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.