Thompson Falls (MT) Temperature by Month

Thompson Falls, Montana, United States of America has an average annual maximum temperature of 15°C (59°F), ranging from 1°C (34°F) in December to 31°C (88°F) in July. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The climate in Thompson Falls is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 11°C (52°F) in July to -5°C (23°F) in December.

The chart below illustrates the average maximum day and minimum night temperatures in Thompson Falls 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:

Thompson Falls's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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 Thompson Falls's weather, including monthly rainfall, sunshine hours, and humidity, visit our Thompson Falls climate page.