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Monthly climate in Greenfield, California, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Greenfield features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 10 °C (50 °F) and 24 °C (75 °F) through the year, but rarely can drop to -3 °C (27 °F) or can rise to as high as 41 °C (107 °F).The average annual precipitation amounts to about 411 mm (16.2 inches) and receives 41 rainy days on the 1 mm (0.04 inches) threshold annually.Greenfield enjoys an average of 3462 hours of sunshine throughout the year, and daylight varies from 9 hours 42 minutes to 14 hours 34 minutes per day.

Monthly average temperatures in Greenfield, California, United States §

The warmest months in Greenfield are July, August and September, with daily mean temperatures ranging from 21 to 24 °C (71 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 10 to 10 °C (50 - 50 °F) throughout the day. On average each year, Greenfield experiences 125 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Greenfield, 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 25°C
(77°F)		 26°C
(79°F)		 28°C
(82°F)		 32°C
(90°F)		 35°C
(96°F)		 37°C
(100°F)		 38°C
(100°F)		 40°C
(104°F)		 41°C
(107°F)		 36°C
(96°F)		 28°C
(83°F)		 26°C
(80°F)
Mean maximum 21°C
(70°F)		 22°C
(71°F)		 25°C
(77°F)		 29°C
(84°F)		 31°C
(89°F)		 34°C
(94°F)		 37°C
(98°F)		 37°C
(99°F)		 38°C
(100°F)		 32°C
(90°F)		 27°C
(80°F)		 21°C
(71°F)
Average high 15°C
(59°F)		 16°C
(61°F)		 17°C
(63°F)		 21°C
(69°F)		 24°C
(75°F)		 28°C
(84°F)		 31°C
(89°F)		 31°C
(89°F)		 29°C
(84°F)		 25°C
(77°F)		 20°C
(68°F)		 15°C
(60°F)
Daily mean 10°C
(50°F)		 10°C
(50°F)		 11°C
(52°F)		 14°C
(57°F)		 16°C
(62°F)		 21°C
(69°F)		 23°C
(75°F)		 24°C
(75°F)		 21°C
(71°F)		 18°C
(64°F)		 13°C
(56°F)		 10°C
(50°F)
Average low 5°C
(42°F)		 5°C
(41°F)		 6°C
(43°F)		 8°C
(47°F)		 10°C
(51°F)		 14°C
(57°F)		 16°C
(62°F)		 17°C
(63°F)		 15°C
(59°F)		 11°C
(53°F)		 8°C
(46°F)		 5°C
(41°F)
Mean minimum -1°C
(31°F)		 -1°C
(30°F)		 1°C
(33°F)		 3°C
(38°F)		 6°C
(42°F)		 8°C
(46°F)		 12°C
(54°F)		 12°C
(55°F)		 9°C
(48°F)		 6°C
(43°F)		 2°C
(35°F)		 0°C
(33°F)
Minimum -1°C
(30°F)		 -3°C
(27°F)		 -0°C
(32°F)		 1°C
(35°F)		 4°C
(39°F)		 7°C
(45°F)		 10°C
(50°F)		 11°C
(52°F)		 7°C
(44°F)		 5°C
(41°F)		 -0°C
(32°F)		 -1°C
(31°F)

Compare climate in Greenfield with other places

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

Monthly average precipitation in Greenfield, California, United States §

Greenfield usually has the most precipitation in January, February and December, with an average of 7 rainy days and 88 mm (3.4 inches) of precipitation per month.The driest months in Greenfield are July, August and September. On average, 0 mm (0.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Greenfield, 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) 112 (4.4) 75 (2.9) 74 (2.9) 21 (0.8) 15 (0.6) 1 (0.0) 0 (0.0) 0 (0.0) 1 (0.0) 10 (0.4) 27 (1.0) 76 (3.0)
Average precipitation days (≥ 1 mm) 7 7 11 3 3 0 0 0 0 0 3 7

Monthly sunshine hours in Greenfield, California, United States §

The sunniest months in Greenfield are June, July and August, when the sun shines an average of 12 hours 18 minutes a day.Least sunny months in Greenfield: January, February and December receive an average of 6 hours 19 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Greenfield, 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 159 213 253 301 359 379 392 359 316 290 232 202
Mean daily daylight hours 9h 59m 10h 52m 11h 59m 13h 8m 14h 6m 14h 34m 14h 19m 13h 27m 12h 21m 11h 12m 10h 12m 9h 42m

Solar UV radiation in Greenfield, California, United States §

Greenfield experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure.January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Greenfield UV Index data.

Average daily maximum UV levels by month for Greenfield, 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) 4 5 8 9 11 12 12 11 9 7 5 3