Climate Insights for Black Diamond

The climate in Black Diamond is cool. The average annual temperature is 3°C and approximately 601mm of precipitation falls per year. June is the wettest month, receiving around 92mm of rainfall. Black Diamond is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are February, January, December, when temperatures can drop to -13°C. Black Diamond experiences heavy snowfall, typically from January through December.

Black Diamond has a wide annual temperature range, spanning 36°C from the coldest to warmest months. August is the warmest month, though highs remain moderate at 23°C with a mean of 15°C. The coldest month is February, when overnight lows fall to -13°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Black Diamond is a relatively dry area, receiving approximately 601mm of precipitation annually, which averages out to around 50mm per month. The wettest month is June, averaging 92mm of rainfall. May and July also tend to see above-average precipitation. The driest month is January, with just 16mm. That's 75mm less than June, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Black Diamond receives heavy snowfall, accumulating around 235cm annually from January through December. The snowiest month is April, with approximately 35cm. Winter travel should account for significant snow cover.

Black Diamond is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Black Diamond, which began on June 21, 2026. Black Diamond is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 23°C, while the coldest stretch bottoms out in February near -13°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Black Diamond is during July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 15°C with modest rainfall averaging 74mm per month. By contrast, August can be uncomfortably hot with highs reaching 23°C, while February is the coldest period with lows dropping to -13°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Black Diamond based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.