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Monthly climate in Quincy, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Quincy features a cold semi-arid climate (BSk).Temperatures typically range between -1 °C (30 °F) and 25 °C (77 °F) through the year, but rarely can drop to -23 °C (-9 °F) or can rise to as high as 46 °C (114 °F).The average annual precipitation amounts to about 298 mm (11.7 inches) and receives 66 rainy days on the 1 mm (0.04 inches) threshold annually.Quincy enjoys an average of 3179 hours of sunshine throughout the year, and daylight varies from 8 hours 31 minutes to 15 hours 50 minutes per day.

Monthly average temperatures in Quincy, Washington, United States §

The warmest months in Quincy are June, July and August, with daily mean temperatures ranging from 21 to 25 °C (70 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 0 °C (30 - 32 °F) throughout the day. On average each year, Quincy experiences 90 days above 25 °C (77.0 °F) and 94 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Quincy, Washington, 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 11°C
(52°F)		 15°C
(59°F)		 20°C
(69°F)		 29°C
(84°F)		 34°C
(94°F)		 46°C
(114°F)		 43°C
(110°F)		 40°C
(104°F)		 37°C
(99°F)		 30°C
(86°F)		 20°C
(67°F)		 18°C
(64°F)
Mean maximum 8°C
(47°F)		 11°C
(52°F)		 18°C
(66°F)		 24°C
(76°F)		 32°C
(89°F)		 35°C
(95°F)		 39°C
(103°F)		 39°C
(103°F)		 33°C
(93°F)		 24°C
(75°F)		 17°C
(63°F)		 12°C
(53°F)
Average high 2°C
(36°F)		 4°C
(40°F)		 11°C
(52°F)		 17°C
(62°F)		 23°C
(74°F)		 27°C
(82°F)		 32°C
(90°F)		 32°C
(89°F)		 25°C
(77°F)		 16°C
(60°F)		 8°C
(47°F)		 3°C
(37°F)
Daily mean -1°C
(30°F)		 -0°C
(32°F)		 6°C
(43°F)		 11°C
(52°F)		 17°C
(63°F)		 21°C
(70°F)		 25°C
(77°F)		 24°C
(76°F)		 18°C
(65°F)		 10°C
(50°F)		 4°C
(39°F)		 -0°C
(32°F)
Average low -4°C
(25°F)		 -4°C
(25°F)		 1°C
(34°F)		 5°C
(42°F)		 11°C
(51°F)		 14°C
(58°F)		 17°C
(63°F)		 17°C
(62°F)		 12°C
(54°F)		 5°C
(41°F)		 0°C
(33°F)		 -3°C
(27°F)
Mean minimum -12°C
(11°F)		 -11°C
(13°F)		 -7°C
(20°F)		 -1°C
(31°F)		 4°C
(40°F)		 9°C
(48°F)		 12°C
(54°F)		 11°C
(52°F)		 6°C
(43°F)		 -2°C
(28°F)		 -5°C
(23°F)		 -9°C
(15°F)
Minimum -23°C
(-9°F)		 -14°C
(6°F)		 -17°C
(3°F)		 -3°C
(27°F)		 3°C
(37°F)		 8°C
(46°F)		 12°C
(53°F)		 10°C
(50°F)		 4°C
(39°F)		 -7°C
(20°F)		 -7°C
(19°F)		 -14°C
(8°F)

Compare climate in Quincy with other places

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

Monthly average precipitation in Quincy, Washington, United States §

Quincy usually has the most precipitation in January, February and December, with an average of 9 rainy days and 43 mm (1.7 inches) of precipitation per month.The driest months in Quincy are June, July and August. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Quincy, Washington, 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) 48 (1.9) 40 (1.6) 27 (1.1) 26 (1.0) 16 (0.6) 7 (0.3) 1 (0.1) 3 (0.1) 14 (0.6) 33 (1.3) 39 (1.5) 41 (1.6)
Average precipitation days (≥ 1 mm) 11 8 7 5 4 2 0 1 3 6 9 10

Monthly sunshine hours in Quincy, Washington, United States §

The sunniest months in Quincy are May, June and July, when the sun shines an average of 12 hours 40 minutes a day.Least sunny months in Quincy: January, November and December receive an average of 4 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Quincy, Washington, 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 94 172 251 301 363 383 418 362 293 245 164 127
Mean daily daylight hours 8h 57m 10h 17m 11h 57m 13h 39m 15h 6m 15h 50m 15h 26m 14h 7m 12h 29m 10h 47m 9h 18m 8h 31m

Solar UV radiation in Quincy, Washington, United States §

Quincy experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure.January, February 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 Quincy UV Index data.

Average daily maximum UV levels by month for Quincy, Washington, 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 3 5 6 8 9 10 9 7 5 3 2