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Monthly climate in Black Diamond, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Black Diamond features a subarctic climate (Dfc). Temperatures typically range between -10 °C (14 °F) and 16 °C (62 °F) through the year, but rarely can drop to -37 °C (-35 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 524 mm (20.6 inches) and receives 96 rainy days on the 1 mm (0.04 inches) threshold annually. Black Diamond enjoys an average of 3103 hours of sunshine throughout the year, and daylight varies from 8 hours 1 minutes to 16 hours 23 minutes per day.

Monthly average temperatures in Black Diamond, Canada

The warmest months in Black Diamond are June, July and August, with daily mean temperatures ranging from 14 to 16 °C (58 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -10 to -6 °C (14 - 21 °F) throughout the day. On average each year, Black Diamond experiences 32 days above 25 °C (77.0 °F) and 185 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Black Diamond. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(52°F)		13°C
(56°F)		17°C
(63°F)		26°C
(79°F)		28°C
(82°F)		35°C
(96°F)		35°C
(95°F)		37°C
(99°F)		32°C
(90°F)		24°C
(76°F)		19°C
(66°F)		14°C
(57°F)
Mean maximum9°C
(48°F)		9°C
(49°F)		14°C
(57°F)		20°C
(68°F)		25°C
(78°F)		26°C
(80°F)		32°C
(90°F)		33°C
(92°F)		28°C
(83°F)		21°C
(70°F)		14°C
(58°F)		11°C
(52°F)
Average high-2°C
(30°F)		-5°C
(24°F)		4°C
(39°F)		9°C
(48°F)		16°C
(61°F)		20°C
(69°F)		24°C
(75°F)		23°C
(75°F)		17°C
(63°F)		10°C
(49°F)		4°C
(39°F)		-2°C
(29°F)
Daily mean-7°C
(20°F)		-10°C
(14°F)		-3°C
(27°F)		2°C
(36°F)		9°C
(49°F)		14°C
(58°F)		16°C
(62°F)		16°C
(61°F)		10°C
(51°F)		3°C
(38°F)		-2°C
(29°F)		-6°C
(21°F)
Average low-11°C
(12°F)		-15°C
(5°F)		-8°C
(18°F)		-4°C
(26°F)		3°C
(37°F)		7°C
(45°F)		9°C
(48°F)		8°C
(47°F)		4°C
(40°F)		-2°C
(28°F)		-7°C
(20°F)		-11°C
(13°F)
Mean minimum-30°C
(-22°F)		-31°C
(-24°F)		-24°C
(-11°F)		-13°C
(9°F)		-3°C
(26°F)		2°C
(36°F)		5°C
(41°F)		2°C
(37°F)		-3°C
(28°F)		-15°C
(5°F)		-21°C
(-5°F)		-27°C
(-16°F)
Minimum-34°C
(-30°F)		-37°C
(-35°F)		-34°C
(-30°F)		-18°C
(-0°F)		-8°C
(17°F)		0°C
(33°F)		4°C
(40°F)		2°C
(36°F)		-4°C
(26°F)		-23°C
(-9°F)		-29°C
(-20°F)		-37°C
(-33°F)

Compare climate in Black Diamond with other places

Compare temperature, precipitation, sunshine, UV index in Black Diamond, Canada with other places around the world.

Monthly average precipitation in Black Diamond, Canada

Black Diamond usually has the most precipitation in May, June and July, with an average of 11 rainy days and 74 mm (2.9 inches) of precipitation per month. The driest months in Black Diamond are January, November and December. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Black Diamond. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)9 (0.4)31 (1.2)31 (1.2)47 (1.8)69 (2.7)82 (3.2)70 (2.7)51 (2.0)47 (1.9)34 (1.3)27 (1.1)26 (1.0)
Average precipitation days (≥ 1 mm)2871011121189765

Monthly sunshine hours in Black Diamond, Canada

The sunniest months in Black Diamond are June, July and August, when the sun shines an average of 11 hours 45 minutes a day. Least sunny months in Black Diamond: January, November and December receive an average of 5 hours 8 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Black Diamond. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours143182258288321351392337268229164165
Mean daily daylight hours8h 31m10h 3m11h 56m13h 52m15h 32m16h 23m15h 55m14h 24m12h 32m10h 38m8h 55m8h 1m

Solar UV radiation in Black Diamond, Canada

Black Diamond experiences the highest level of ultraviolet (UV) radiation in May, 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, 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 Black Diamond UV Index data.

Average daily maximum UV levels by month for Black Diamond. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235688987421