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Monthly climate in South Bend, Washington, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification South Bend features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 5 °C (42 °F) and 17 °C (63 °F) through the year, but rarely can drop to -6 °C (21 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 1534 mm (60.4 inches) and receives 154 rainy days on the 1 mm (0.04 inches) threshold annually.South Bend enjoys an average of 2668 hours of sunshine throughout the year, and daylight varies from 8 hours 36 minutes to 15 hours 46 minutes per day.

Monthly average temperatures in South Bend, Washington, United States §

The warmest months in South Bend are July, August and September, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 5 to 6 °C (42 - 43 °F) throughout the day. On average each year, South Bend experiences 16 days above 25 °C (77.0 °F) and 18 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in South Bend, 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 14°C
(57°F)		 14°C
(58°F)		 25°C
(77°F)		 27°C
(81°F)		 29°C
(85°F)		 40°C
(105°F)		 32°C
(90°F)		 35°C
(95°F)		 32°C
(90°F)		 23°C
(73°F)		 16°C
(62°F)		 13°C
(56°F)
Mean maximum 13°C
(55°F)		 12°C
(55°F)		 18°C
(64°F)		 22°C
(72°F)		 26°C
(79°F)		 30°C
(86°F)		 29°C
(84°F)		 33°C
(92°F)		 29°C
(84°F)		 20°C
(68°F)		 16°C
(61°F)		 13°C
(55°F)
Average high 9°C
(48°F)		 8°C
(47°F)		 11°C
(52°F)		 14°C
(57°F)		 17°C
(62°F)		 19°C
(67°F)		 21°C
(71°F)		 23°C
(73°F)		 20°C
(69°F)		 15°C
(59°F)		 11°C
(52°F)		 8°C
(47°F)
Daily mean 6°C
(43°F)		 5°C
(42°F)		 7°C
(45°F)		 10°C
(49°F)		 12°C
(54°F)		 15°C
(59°F)		 16°C
(61°F)		 17°C
(63°F)		 15°C
(60°F)		 11°C
(52°F)		 8°C
(47°F)		 6°C
(43°F)
Average low 4°C
(39°F)		 3°C
(37°F)		 4°C
(39°F)		 6°C
(43°F)		 8°C
(47°F)		 10°C
(51°F)		 12°C
(53°F)		 12°C
(54°F)		 11°C
(53°F)		 7°C
(45°F)		 5°C
(42°F)		 3°C
(39°F)
Mean minimum -2°C
(29°F)		 -3°C
(26°F)		 -1°C
(30°F)		 1°C
(34°F)		 4°C
(40°F)		 6°C
(44°F)		 9°C
(48°F)		 8°C
(47°F)		 6°C
(43°F)		 1°C
(34°F)		 -1°C
(31°F)		 -3°C
(27°F)
Minimum -6°C
(21°F)		 -5°C
(22°F)		 -3°C
(28°F)		 -1°C
(31°F)		 4°C
(39°F)		 6°C
(43°F)		 8°C
(47°F)		 8°C
(46°F)		 5°C
(40°F)		 -1°C
(31°F)		 -3°C
(27°F)		 -5°C
(24°F)

Compare climate in South Bend with other places

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

Monthly average precipitation in South Bend, Washington, United States §

South Bend usually has the most precipitation in January, November and December, with an average of 18 rainy days and 225 mm (8.8 inches) of precipitation per month.The driest months in South Bend are June, July and August. On average, 27 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in South Bend, 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) 227 (8.9) 173 (6.8) 154 (6.0) 132 (5.2) 69 (2.7) 57 (2.2) 13 (0.5) 11 (0.4) 99 (3.9) 152 (6.0) 230 (9.1) 216 (8.5)
Average precipitation days (≥ 1 mm) 17 18 17 15 11 8 4 3 11 13 18 19

Monthly sunshine hours in South Bend, Washington, United States §

The sunniest months in South Bend are June, July and August, when the sun shines an average of 11 hours 3 minutes a day.Least sunny months in South Bend: January, November and December receive an average of 3 hours 26 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in South Bend, 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 87 130 213 233 295 325 358 332 261 201 127 101
Mean daily daylight hours 9h 1m 10h 19m 11h 57m 13h 37m 15h 3m 15h 46m 15h 22m 14h 5m 12h 28m 10h 49m 9h 21m 8h 36m

Solar UV radiation in South Bend, Washington, United States §

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

Average daily maximum UV levels by month for South Bend, 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 9 9 9 8 7 5 3 2