Climate Insights for Hamilton
Ontario, Canada
Climate Overview
The climate in Hamilton is cool. The average annual temperature is 10°C and approximately 953 mm of precipitation falls per year. Hamilton receives a notable amount of rainfall throughout the year, including during its driest month. Hamilton 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 January, February, December, when temperatures can drop to -5°C. Snowfall occurs from January to December, with around 127cm accumulating over the season.The climate in Hamilton is cool. The average annual temperature is 49°F and approximately 37.5 in of precipitation falls per year. Hamilton receives a notable amount of rainfall throughout the year, including during its driest month. Hamilton 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 January, February, December, when temperatures can drop to 23°F. Snowfall occurs from January to December, with around 50in accumulating over the season.
Temperature
Temperatures in Hamilton vary considerably across the year, with a 31°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 26°C and the mean temperature sits around 22°C. The coldest month is January, when overnight lows fall to -5°C and the daily average is -3°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.Temperatures in Hamilton vary considerably across the year, with a 57°F difference between the coldest and warmest months. The warmest month is July, when average highs reach 80°F and the mean temperature sits around 72°F. The coldest month is January, when overnight lows fall to 23°F and the daily average is 27°F. Daily temperature variation is modest, with an average difference of 12°F between highs and lows. The sharpest temperature change occurs between October and November, with a 13°F shift in average temperatures.
Precipitation
Hamilton is a moderately rainy area, receiving approximately 953 mm of precipitation annually, which averages out to around 79 mm per month. The wettest month is April, averaging 100 mm of rainfall. October and July also tend to see above-average precipitation. The driest month is September, with just 57 mm. That's 43 mm less than April, 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 127cm accumulating over the season. February typically sees the most snow at around 39cm.Hamilton is a moderately rainy area, receiving approximately 37.5 in of precipitation annually, which averages out to around 3.1 in per month. The wettest month is April, averaging 3.9 in of rainfall. October and July also tend to see above-average precipitation. The driest month is September, with just 2.2 in. That's 1.7 in less than April, 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 50in accumulating over the season. February typically sees the most snow at around 15in.
Wind
Hamilton is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 17km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 10km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 7km/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 17km/h in winter, 14km/h in spring, 11km/h in summer, 14km/h in autumn.Hamilton is moderately windy, with an average annual wind speed of 9mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 11mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 6mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5mph 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 10mph in winter, 9mph in spring, 7mph in summer, 9mph in autumn.
Best Time to Visit
The best time to visit Hamilton is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 74 mm per month. By contrast, January can be quite cold with temperatures dropping to -5°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 best time to visit Hamilton is during June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 69°F with modest rainfall averaging 2.9 in per month. By contrast, January can be quite cold with temperatures dropping to 23°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Hamilton 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.The table below shows monthly climate averages for Hamilton based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.