Columbus (OH) Temperature by Month

The average annual maximum temperature in Columbus, Ohio, United States of America is 17°C (63°F), with daytime highs ranging from 2°C (36°F) in January to 29°C (84°F) in July. This page covers monthly averages, day-night differences, and how Columbus compares to cities worldwide.

With significant temperature fluctuations, Columbus enjoys distinct seasons year-round. Nighttime lows range from 19°C (66°F) in July to -6°C (21°F) in January.

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

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. July, the warmest month of the year, receives 260 hours of sunshine.

The chart below shows the average temperature throughout the year:

Columbus's average annual maximum temperature is 17°C (63°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.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

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

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Columbus, January is the coolest month, with average highs of 2°C (36°F) and humidity around 71%, considered high. In July, the warmest month, temperatures average 29°C (84°F) with 71% humidity, conditions that feel high. For a full picture, see our humidity page.

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