Dunsmuir (CA) Temperature by Month

The average annual maximum temperature in Dunsmuir, California, United States of America is 19°C (66°F), with daytime highs ranging from 7°C (45°F) in December to 31°C (88°F) in July. This page covers monthly averages, day-night differences, and how Dunsmuir compares to cities worldwide.

Depending on the time of the year, temperatures range from very warm to cold in Dunsmuir. At night, minimum temperatures range from 15°C (59°F) in July to -1°C (30°F) in December.

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

Dunsmuir's average annual maximum temperature is 19°C (66°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.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

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

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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

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