Cleveland Temperature by Month

The average annual maximum temperature in Cleveland, United States of America is 23°C (73°F), with daytime highs ranging from 11°C (52°F) in January to 34°C (93°F) in August. This page covers monthly averages, day-night differences, and how Cleveland compares to cities worldwide.

The climate in Cleveland is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 22°C (72°F) in August to 0°C (32°F) in January.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak.

The chart below shows the average temperature throughout the year:

Cleveland's average annual maximum temperature is 23°C (73°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.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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 Cleveland this rarely lasts long on the ground.

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