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Monthly climate in Longbranch, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Longbranch features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 6 °C (42 °F) and 20 °C (68 °F) through the year, but rarely can drop to -4 °C (24 °F) or can rise to as high as 36 °C (97 °F).The average annual precipitation amounts to about 1230 mm (48.4 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually.Longbranch enjoys an average of 2597 hours of sunshine throughout the year, and daylight varies from 8 hours 32 minutes to 15 hours 50 minutes per day.

Monthly average temperatures in Longbranch, Washington, United States §

The warmest months in Longbranch are July, August and September, with daily mean temperatures ranging from 17 to 20 °C (63 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 6 to 6 °C (42 - 43 °F) throughout the day. On average each year, Longbranch experiences 28 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 Longbranch, 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 13°C
(56°F)		 14°C
(57°F)		 20°C
(68°F)		 25°C
(76°F)		 29°C
(85°F)		 36°C
(97°F)		 33°C
(91°F)		 33°C
(92°F)		 31°C
(88°F)		 24°C
(75°F)		 17°C
(63°F)		 13°C
(56°F)
Mean maximum 12°C
(54°F)		 12°C
(54°F)		 16°C
(62°F)		 20°C
(69°F)		 25°C
(77°F)		 30°C
(86°F)		 30°C
(86°F)		 32°C
(89°F)		 27°C
(82°F)		 20°C
(68°F)		 16°C
(61°F)		 12°C
(55°F)
Average high 8°C
(47°F)		 8°C
(46°F)		 11°C
(52°F)		 14°C
(57°F)		 18°C
(64°F)		 21°C
(70°F)		 24°C
(76°F)		 25°C
(76°F)		 21°C
(70°F)		 15°C
(59°F)		 11°C
(52°F)		 8°C
(46°F)
Daily mean 6°C
(43°F)		 6°C
(42°F)		 8°C
(46°F)		 10°C
(51°F)		 14°C
(57°F)		 17°C
(63°F)		 19°C
(67°F)		 20°C
(68°F)		 17°C
(63°F)		 12°C
(54°F)		 9°C
(48°F)		 6°C
(43°F)
Average low 4°C
(40°F)		 4°C
(39°F)		 5°C
(42°F)		 7°C
(46°F)		 11°C
(52°F)		 13°C
(56°F)		 15°C
(60°F)		 16°C
(61°F)		 14°C
(58°F)		 10°C
(50°F)		 7°C
(45°F)		 5°C
(41°F)
Mean minimum 1°C
(33°F)		 -1°C
(30°F)		 2°C
(35°F)		 3°C
(38°F)		 7°C
(46°F)		 10°C
(50°F)		 13°C
(56°F)		 13°C
(56°F)		 10°C
(51°F)		 6°C
(42°F)		 3°C
(38°F)		 -0°C
(32°F)
Minimum -3°C
(27°F)		 -3°C
(28°F)		 0°C
(33°F)		 2°C
(35°F)		 6°C
(43°F)		 8°C
(47°F)		 12°C
(55°F)		 12°C
(53°F)		 8°C
(46°F)		 3°C
(37°F)		 2°C
(36°F)		 -4°C
(24°F)

Compare climate in Longbranch with other places

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

Monthly average precipitation in Longbranch, Washington, United States §

Longbranch usually has the most precipitation in January, November and December, with an average of 17 rainy days and 185 mm (7.3 inches) of precipitation per month.The driest months in Longbranch are June, July and August. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Longbranch, 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) 183 (7.2) 141 (5.6) 117 (4.6) 100 (3.9) 51 (2.0) 42 (1.6) 7 (0.3) 11 (0.4) 81 (3.2) 126 (5.0) 179 (7.1) 193 (7.6)
Average precipitation days (≥ 1 mm) 16 17 16 13 9 7 1 2 10 13 17 18

Monthly sunshine hours in Longbranch, Washington, United States §

The sunniest months in Longbranch are June, July and August, when the sun shines an average of 10 hours 57 minutes a day.Least sunny months in Longbranch: January, November and December receive an average of 3 hours 9 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Longbranch, 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 81 121 201 226 299 312 364 331 254 196 115 93
Mean daily daylight hours 8h 57m 10h 17m 11h 57m 13h 39m 15h 6m 15h 50m 15h 26m 14h 7m 12h 29m 10h 48m 9h 18m 8h 32m

Solar UV radiation in Longbranch, Washington, United States §

Longbranch experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 9, 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 Longbranch UV Index data.

Average daily maximum UV levels by month for Longbranch, 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 9 8 7 5 3 1