Climate Insights for Colebrook

The climate in Colebrook is cool. The average annual temperature is 5°C and approximately 1293mm of precipitation falls per year. Colebrook receives a notable amount of rainfall throughout the year, including during its driest month. Colebrook 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 -13°C. Colebrook experiences heavy snowfall, typically from January through December.

Colebrook has a wide annual temperature range, spanning 36°C from the coldest to warmest months. July is the warmest month, though highs remain moderate at 23°C with a mean of 18°C. The coldest month is January, when overnight lows fall to -13°C and the daily average is -9°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 8°C shift in average temperatures.

Colebrook is a fairly wet location, receiving approximately 1293mm of precipitation annually, which averages out to around 108mm per month. The wettest month is June, averaging 145mm of rainfall. August and July also tend to see above-average precipitation. The driest month is February, with just 80mm. That's 65mm less than June, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Colebrook receives heavy snowfall, accumulating around 234cm annually from January through December. The snowiest month is January, with approximately 48cm. Winter travel should account for significant snow cover.

Colebrook is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 19km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/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 18km/h in winter, 18km/h in spring, 14km/h in summer, 16km/h in autumn.

It is currently spring in Colebrook, which began on March 20, 2026. Colebrook 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 23°C, while the coldest stretch bottoms out in January near -13°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Colebrook 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.