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Monthly climate in Williams Lake, British Columbia, Canada

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Williams Lake features a humid continental climate (Dfb).Temperatures typically range between -8 °C (18 °F) and 17 °C (63 °F) through the year, but rarely can drop to -39 °C (-38 °F) or can rise to as high as 41 °C (107 °F).The average annual precipitation amounts to about 552 mm (21.7 inches) and receives 116 rainy days on the 1 mm (0.04 inches) threshold annually.Williams Lake enjoys an average of 2805 hours of sunshine throughout the year, and daylight varies from 7 hours 47 minutes to 16 hours 39 minutes per day.

Monthly average temperatures in Williams Lake, British Columbia, Canada §

The warmest months in Williams Lake are June, July and August, with daily mean temperatures ranging from 15 to 17 °C (58 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -6 °C (18 - 21 °F) throughout the day. On average each year, Williams Lake experiences 29 days above 25 °C (77.0 °F) and 161 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Williams Lake, British Columbia, Canada.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 6°C
(43°F)		 10°C
(50°F)		 16°C
(61°F)		 24°C
(76°F)		 29°C
(84°F)		 41°C
(107°F)		 40°C
(105°F)		 35°C
(95°F)		 28°C
(83°F)		 22°C
(72°F)		 11°C
(52°F)		 8°C
(47°F)
Mean maximum 6°C
(42°F)		 6°C
(44°F)		 12°C
(54°F)		 19°C
(67°F)		 25°C
(77°F)		 29°C
(85°F)		 33°C
(92°F)		 33°C
(91°F)		 26°C
(79°F)		 17°C
(63°F)		 10°C
(51°F)		 5°C
(42°F)
Average high -3°C
(27°F)		 -3°C
(27°F)		 5°C
(41°F)		 10°C
(51°F)		 18°C
(64°F)		 21°C
(69°F)		 24°C
(75°F)		 24°C
(75°F)		 17°C
(63°F)		 9°C
(48°F)		 3°C
(37°F)		 -3°C
(26°F)
Daily mean -6°C
(21°F)		 -8°C
(18°F)		 -1°C
(31°F)		 4°C
(40°F)		 11°C
(53°F)		 15°C
(58°F)		 17°C
(63°F)		 17°C
(62°F)		 11°C
(53°F)		 4°C
(39°F)		 -0°C
(31°F)		 -6°C
(21°F)
Average low -10°C
(14°F)		 -13°C
(10°F)		 -6°C
(22°F)		 -1°C
(30°F)		 5°C
(41°F)		 8°C
(47°F)		 11°C
(51°F)		 10°C
(51°F)		 6°C
(44°F)		 -0°C
(32°F)		 -3°C
(26°F)		 -10°C
(15°F)
Mean minimum -28°C
(-18°F)		 -27°C
(-16°F)		 -19°C
(-3°F)		 -9°C
(17°F)		 -1°C
(30°F)		 3°C
(38°F)		 6°C
(44°F)		 5°C
(41°F)		 -1°C
(31°F)		 -10°C
(14°F)		 -12°C
(10°F)		 -22°C
(-7°F)
Minimum -39°C
(-38°F)		 -34°C
(-28°F)		 -28°C
(-18°F)		 -18°C
(-1°F)		 -3°C
(28°F)		 1°C
(35°F)		 5°C
(41°F)		 3°C
(37°F)		 -2°C
(28°F)		 -19°C
(-2°F)		 -15°C
(5°F)		 -36°C
(-32°F)

Compare climate in Williams Lake with other places

Compare temperature, precipitation, sunshine, UV index in Williams Lake, British Columbia, Canada with other places around the world.

Monthly average precipitation in Williams Lake, British Columbia, Canada §

Williams Lake usually has the most precipitation in July, September and October, with an average of 11 rainy days and 67 mm (2.6 inches) of precipitation per month.The driest months in Williams Lake are January, March and April. On average, 32 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Williams Lake, British Columbia, Canada.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) 30 (1.2) 42 (1.7) 31 (1.2) 35 (1.4) 39 (1.5) 46 (1.8) 60 (2.4) 36 (1.4) 68 (2.7) 73 (2.9) 52 (2.1) 41 (1.6)
Average precipitation days (≥ 1 mm) 7 10 8 9 10 10 9 7 11 13 12 10

Monthly sunshine hours in Williams Lake, British Columbia, Canada §

The sunniest months in Williams Lake are May, June and July, when the sun shines an average of 11 hours 15 minutes a day.Least sunny months in Williams Lake: January, November and December receive an average of 3 hours 55 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Williams Lake, British Columbia, Canada.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 102 156 229 275 336 331 367 329 229 188 133 124
Mean daily daylight hours 8h 19m 9h 56m 11h 56m 13h 58m 15h 44m 16h 39m 16h 8m 14h 32m 12h 34m 10h 33m 8h 44m 7h 47m

Solar UV radiation in Williams Lake, British Columbia, Canada §

Williams Lake experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 8 - 8, which corresponds to the Very High category of sun exposure.January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Williams Lake UV Index data.

Average daily maximum UV levels by month for Williams Lake, British Columbia, Canada.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 4 5 7 8 8 8 6 4 2 1