Climate Insights for Harvey

The climate in Harvey is cool. The average annual temperature is 6°C and approximately 894mm of precipitation falls per year. Harvey receives a notable amount of rainfall throughout the year, including during its driest month. Harvey is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, September. The coldest months are February, January, March, when temperatures can drop to -10°C. Snowfall occurs from January to December, with around 171cm accumulating over the season.

Temperatures in Harvey vary considerably across the year, with a 32°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 22°C with a mean of 18°C. The coldest month is February, when overnight lows fall to -10°C and the daily average is -7°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between September and October, with a 7°C shift in average temperatures.

Harvey is a moderately rainy area, receiving approximately 894mm of precipitation annually, which averages out to around 75mm per month. The wettest month is October, averaging 101mm of rainfall. August and April also tend to see above-average precipitation. The driest month is February, with just 45mm. That's 56mm less than October, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 171cm accumulating over the season. January typically sees the most snow at around 34cm.

Harvey is moderately windy, with an average annual wind speed of 23km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 26km/h in winter, 23km/h in spring, 19km/h in summer, 25km/h in autumn.

It is currently spring in Harvey, which began on March 20, 2026. Harvey 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 22°C, while the coldest stretch bottoms out in February near -10°C. Summer is next, beginning on June 21, 2026 — 82 days from now.

The best time to visit Harvey is during July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 84mm per month. By contrast, February can be quite cold with temperatures dropping to -10°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 Harvey 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.