Lac-Brome (QC) Temperature by Month

The average annual maximum temperature in Lac-Brome, Quebec, Canada is 12°C (54°F), with daytime highs ranging from -4°C (25°F) in January to 26°C (79°F) in July. This page covers monthly averages, day-night differences, and how Lac-Brome compares to cities worldwide.

Depending on the time of the year, temperatures range from comfortable to very cold in Lac-Brome. At night, minimum temperatures range from 15°C (59°F) in July to -14°C (7°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Lac-Brome by month:

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.

The chart below shows the average temperature throughout the year:

Lac-Brome's average annual maximum temperature is 12°C (54°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Lac-Brome's weather, including monthly rainfall, sunshine hours, and humidity, visit our Lac-Brome climate page.