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Monthly climate in Etna, California, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Etna features a warm-summer Mediterranean climate (Csb). Temperatures typically range between 1 °C (34 °F) and 22 °C (71 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 36 °C (98 °F). The average annual precipitation amounts to about 894 mm (35.2 inches) and receives 96 rainy days on the 1 mm (0.04 inches) threshold annually. Etna enjoys an average of 3183 hours of sunshine throughout the year, and daylight varies from 9 hours 12 minutes to 15 hours 6 minutes per day.

Monthly average temperatures in Etna, California, United States §

The warmest months in Etna are June, July and August, with daily mean temperatures ranging from 17 to 22 °C (62 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 2 °C (34 - 36 °F) throughout the day. On average each year, Etna experiences 77 days above 25 °C (77.0 °F) and 116 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Etna, 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 14°C
(58°F)		 18°C
(65°F)		 20°C
(68°F)		 25°C
(78°F)		 30°C
(86°F)		 36°C
(97°F)		 36°C
(96°F)		 36°C
(98°F)		 35°C
(95°F)		 29°C
(84°F)		 23°C
(74°F)		 15°C
(60°F)
Mean maximum 13°C
(55°F)		 15°C
(60°F)		 18°C
(65°F)		 24°C
(75°F)		 27°C
(81°F)		 31°C
(88°F)		 34°C
(93°F)		 34°C
(94°F)		 32°C
(90°F)		 25°C
(77°F)		 19°C
(67°F)		 12°C
(53°F)
Average high 6°C
(43°F)		 8°C
(46°F)		 10°C
(50°F)		 14°C
(57°F)		 19°C
(66°F)		 24°C
(75°F)		 30°C
(86°F)		 29°C
(84°F)		 24°C
(76°F)		 17°C
(64°F)		 11°C
(51°F)		 6°C
(42°F)
Daily mean 1°C
(35°F)		 2°C
(36°F)		 4°C
(39°F)		 7°C
(46°F)		 12°C
(53°F)		 17°C
(62°F)		 22°C
(71°F)		 21°C
(69°F)		 16°C
(61°F)		 10°C
(50°F)		 4°C
(40°F)		 1°C
(34°F)
Average low -2°C
(28°F)		 -2°C
(28°F)		 -1°C
(30°F)		 1°C
(35°F)		 5°C
(41°F)		 9°C
(49°F)		 13°C
(56°F)		 12°C
(54°F)		 8°C
(47°F)		 3°C
(38°F)		 -0°C
(32°F)		 -2°C
(28°F)
Mean minimum -9°C
(15°F)		 -11°C
(12°F)		 -8°C
(18°F)		 -4°C
(24°F)		 -2°C
(30°F)		 1°C
(34°F)		 9°C
(48°F)		 8°C
(46°F)		 1°C
(34°F)		 -3°C
(27°F)		 -7°C
(19°F)		 -8°C
(18°F)
Minimum -19°C
(-2°F)		 -16°C
(3°F)		 -11°C
(13°F)		 -8°C
(17°F)		 -3°C
(27°F)		 0°C
(32°F)		 7°C
(44°F)		 6°C
(44°F)		 -2°C
(28°F)		 -5°C
(24°F)		 -17°C
(3°F)		 -10°C
(15°F)

Compare climate in Etna with other places

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

Monthly average precipitation in Etna, California, United States §

Etna usually has the most precipitation in January, February and December, with an average of 12 rainy days and 143 mm (5.6 inches) of precipitation per month. The driest months in Etna are June, July and August. On average, 13 mm (0.5 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Etna, 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) 161 (6.3) 147 (5.8) 120 (4.7) 81 (3.2) 63 (2.5) 20 (0.8) 8 (0.3) 11 (0.4) 22 (0.9) 46 (1.8) 96 (3.8) 120 (4.7)
Average precipitation days (≥ 1 mm) 13 12 15 10 8 4 2 3 4 5 9 11

Monthly sunshine hours in Etna, California, United States §

The sunniest months in Etna are June, July and August, when the sun shines an average of 12 hours 29 minutes a day. Least sunny months in Etna: January, February and December receive an average of 4 hours 46 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Etna, 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 108 173 224 268 343 379 402 366 306 268 188 152
Mean daily daylight hours 9h 33m 10h 37m 11h 58m 13h 21m 14h 31m 15h 6m 14h 47m 13h 44m 12h 24m 11h 2m 9h 49m 9h 12m

Solar UV radiation in Etna, California, United States §

Etna experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 11 - 11, which corresponds to the 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 Etna UV Index data.

Average daily maximum UV levels by month for Etna, 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 9 11 11 11 10 9 6 4 3

Detailed Monthly Weather Insights for Etna, California, United States

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