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Monthly climate in Copperopolis, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Copperopolis features a hot-summer Mediterranean climate (Csa). Temperatures typically range between 9 °C (48 °F) and 26 °C (78 °F) through the year, but rarely can drop to -3 °C (26 °F) or can rise to as high as 42 °C (108 °F). The average annual precipitation amounts to about 757 mm (29.8 inches) and receives 54 rainy days on the 1 mm (0.04 inches) threshold annually. Copperopolis enjoys an average of 3497 hours of sunshine throughout the year, and daylight varies from 9 hours 33 minutes to 14 hours 44 minutes per day.

Monthly average temperatures in Copperopolis, California, United States §

The warmest months in Copperopolis are June, July and August, with daily mean temperatures ranging from 23 to 26 °C (74 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 9 to 10 °C (48 - 50 °F) throughout the day. On average each year, Copperopolis experiences 141 days above 25 °C (77.0 °F) and 6 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Copperopolis, California, 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
(74°F)		 25°C
(77°F)		 28°C
(83°F)		 32°C
(90°F)		 36°C
(97°F)		 40°C
(105°F)		 39°C
(103°F)		 42°C
(108°F)		 42°C
(107°F)		 35°C
(96°F)		 27°C
(81°F)		 22°C
(73°F)
Mean maximum 19°C
(67°F)		 22°C
(72°F)		 26°C
(79°F)		 29°C
(85°F)		 33°C
(92°F)		 37°C
(99°F)		 38°C
(101°F)		 39°C
(102°F)		 38°C
(100°F)		 31°C
(89°F)		 25°C
(77°F)		 19°C
(67°F)
Average high 14°C
(58°F)		 16°C
(61°F)		 18°C
(65°F)		 22°C
(72°F)		 26°C
(79°F)		 31°C
(88°F)		 34°C
(93°F)		 33°C
(92°F)		 31°C
(87°F)		 26°C
(78°F)		 19°C
(66°F)		 14°C
(57°F)
Daily mean 9°C
(49°F)		 10°C
(50°F)		 12°C
(54°F)		 15°C
(60°F)		 19°C
(66°F)		 23°C
(74°F)		 26°C
(78°F)		 25°C
(78°F)		 23°C
(73°F)		 17°C
(64°F)		 12°C
(54°F)		 9°C
(48°F)
Average low 5°C
(41°F)		 5°C
(40°F)		 7°C
(44°F)		 9°C
(49°F)		 12°C
(54°F)		 16°C
(61°F)		 18°C
(65°F)		 18°C
(64°F)		 15°C
(59°F)		 10°C
(50°F)		 6°C
(44°F)		 5°C
(40°F)
Mean minimum -1°C
(31°F)		 -2°C
(28°F)		 1°C
(34°F)		 4°C
(39°F)		 8°C
(46°F)		 11°C
(52°F)		 14°C
(58°F)		 14°C
(57°F)		 10°C
(50°F)		 5°C
(41°F)		 1°C
(35°F)		 -0°C
(32°F)
Minimum -2°C
(30°F)		 -3°C
(26°F)		 -0°C
(32°F)		 2°C
(37°F)		 5°C
(42°F)		 10°C
(50°F)		 13°C
(56°F)		 13°C
(56°F)		 8°C
(46°F)		 4°C
(39°F)		 -1°C
(31°F)		 -1°C
(30°F)

Compare climate in Copperopolis with other places

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

Monthly average precipitation in Copperopolis, California, United States §

Copperopolis usually has the most precipitation in January, February and March, with an average of 10 rainy days and 140 mm (5.5 inches) of precipitation per month. The driest months in Copperopolis are June, July and August. On average, 1 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Copperopolis, California, 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) 141 (5.6) 133 (5.2) 145 (5.7) 65 (2.6) 38 (1.5) 2 (0.1) 0 (0.0) 0 (0.0) 4 (0.2) 36 (1.4) 68 (2.7) 123 (4.8)
Average precipitation days (≥ 1 mm) 9 9 12 5 3 0 0 0 0 2 5 9

Monthly sunshine hours in Copperopolis, California, United States §

The sunniest months in Copperopolis are May, June and July, when the sun shines an average of 12 hours 27 minutes a day. Least sunny months in Copperopolis: January, February and December receive an average of 6 hours 22 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Copperopolis, California, 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 159 216 261 304 365 385 395 362 319 289 233 204
Mean daily daylight hours 9h 51m 10h 47m 11h 59m 13h 12m 14h 14m 14h 44m 14h 27m 13h 32m 12h 22m 11h 9m 10h 5m 9h 33m

Solar UV radiation in Copperopolis, California, United States §

Copperopolis experiences the highest level of ultraviolet (UV) radiation in June, July and August, 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 4. For more detailed information, check out our hourly Copperopolis UV Index data.

Average daily maximum UV levels by month for Copperopolis, California, 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 8 8 10 11 11 10 9 6 4 3

Detailed Monthly Weather Insights for Copperopolis, California, United States

Discover in-depth weather details for every month in Copperopolis. 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 Copperopolis'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.