Maine’s Coldest June Temperatures in Recent History

As summer arrives in Maine with a blistering heat wave, it's good to remember that it hasn't always been this way. In fact, when you dig through some of the historical weather records for Maine, June is typically far more mild than you might expect.

Last June was actually an exception to the norm. According to Extreme Weather Watch, the average high temperature in Maine for June 2024 was 75.2 degrees. It was the fourth warmest average June for Maine in recorded history.

2023 was the polar opposite. The average high temperature in June 2023 for Maine was 69.1 degrees. It was only the second time in the last 15 years where Maine averaged under 70 degrees in any June.

Maine is Pretty Consistent With Temperatures in June, Even At Night

But historical data shows us that heat in June has never really been a given. The coldest June in Maine's history happened in 1958. That year, there were only four days for the entire month that eclipsed 70 degrees. The average high temperature was 66.3 statewide, and the average low was a chilly 43.6 degrees.

The last June in recent history that was unseasonably cool was 2015. That June, high temperatures in Maine averaged only 67.4 degrees with lows averaging a chilly 46.7 degrees.

The Coldest Single June Day in Maine Happened Nearly 40 Years Ago

Many towns and cities in Maine could eclipse record highs next week. But looking at record lows for June will make your head spin. The coldest day for June in Maine history was recorded in the small town of Van Buren on June 10 of 1986. Van Buren registered a temperature of just 22 degrees.

There's a more recent pair of below-freezing low temperatures recorded for June in Maine. Gardiner reported a low of 31 degrees in 2018, and Houlton reported a frigid low of 26 degrees in 2020.