Birmingham (AL) Temperature by Month

Birmingham in Alabama, United States of America sees significant seasonal temperature differences, with daytime highs between 12°C (54°F) in January and 33°C (91°F) in July, averaging 23°C (73°F) annually. Explore the full monthly breakdown below.

Visitors to Birmingham will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 22°C (72°F) in July to 1°C (34°F) in January.

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

Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 265 hours of sunshine.

The chart below shows the average temperature throughout the year:

Birmingham'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:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

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

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

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

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 Birmingham, January is the coolest month, with average highs of 12°C (54°F) and humidity around 70%, considered high. In July, the warmest month, temperatures average 33°C (91°F) with 75% 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.

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 Birmingham this rarely lasts long on the ground.

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