McComb (MS) Temperature by Month

The average annual maximum temperature in McComb, Mississippi, United States of America is 25°C (77°F), with daytime highs ranging from 15°C (59°F) in January to 33°C (91°F) in August. This page covers monthly averages, day-night differences, and how McComb compares to cities worldwide.

The climate in McComb is dynamic, ranging widely from moderate in winter to very warm in summer. Nights are significantly colder, with lows dropping from 22°C (72°F) in August to 3°C (37°F) in January.

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

McComb's average annual maximum temperature is 25°C (77°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.

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

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in McComb this rarely lasts long on the ground.

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