Climate Insights for Hadley

The climate in Hadley is cool. The average annual temperature is 10°C and approximately 1327mm of precipitation falls per year. Hadley receives a notable amount of rainfall throughout the year, including during its driest month. Hadley 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 -7°C. Hadley experiences heavy snowfall, typically from January through December.

Temperatures in Hadley vary considerably across the year, with a 35°C difference between the coldest and warmest months. The warmest month is July, when average highs reach 28°C and the mean temperature sits around 23°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -3°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between October and November, with a 7°C shift in average temperatures.

Hadley is a fairly wet location, receiving approximately 1327mm of precipitation annually, which averages out to around 111mm per month. The wettest month is October, averaging 145mm of rainfall. July and April also tend to see above-average precipitation. The driest month is March, with just 91mm. That's 54mm 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. Hadley receives heavy snowfall, accumulating around 206cm annually from January through December. The snowiest month is December, with approximately 47cm. Winter travel should account for significant snow cover.

Hadley 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 March, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, 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 2km/h gap between the calmest and windiest months.

It is currently spring in Hadley, which began on March 20, 2026. Hadley 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 28°C, while the coldest stretch bottoms out in January near -7°C. Summer is next, beginning on June 21, 2026 — 7 days from now.

The best time to visit Hadley is during June and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 92mm per month. By contrast, July can be uncomfortably hot with highs reaching 28°C, while January is the coldest period with lows dropping to -7°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 Hadley 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.