Climate Insights for Mount Pleasant

The climate in Mount Pleasant is cool. The average annual temperature is 7°C and approximately 479mm of precipitation falls per year. January is the wettest month, receiving around 58mm of rainfall. Mount Pleasant is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are December, January, February, when temperatures can drop to -10°C. Mount Pleasant experiences heavy snowfall, typically from January through December.

Mount Pleasant has a wide annual temperature range, spanning 39°C from the coldest to warmest months. The warmest month is July, when average highs reach 29°C and the mean temperature sits around 21°C. The coldest month is December, when overnight lows fall to -10°C and the daily average is -6°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between September and October, with a 8°C shift in average temperatures.

Mount Pleasant is a relatively dry area, receiving approximately 479mm of precipitation annually, which averages out to around 40mm per month. The wettest month is January, averaging 58mm of rainfall. May and March also tend to see above-average precipitation. The driest month is August, with just 19mm. That's 40mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall. Mount Pleasant receives heavy snowfall, accumulating around 271cm annually from January through December. The snowiest month is January, with approximately 57cm. Winter travel should account for significant snow cover.

Mount Pleasant is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 2km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, 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 0km/h gap between the calmest and windiest months.

It is currently summer in Mount Pleasant, which began on June 21, 2026. Mount Pleasant 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 July at around 29°C, while the coldest stretch bottoms out in December near -10°C. Autumn is next, beginning on September 23, 2026 — 80 days from now.

The best time to visit Mount Pleasant is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 23mm per month. By contrast, December can be quite cold with temperatures dropping to -10°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Mount Pleasant 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.