Huntsville (AL) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Huntsville.
Climate overview of Huntsville
Huntsville, in Alabama, United States, experiences a wide range of temperatures across the year. Summers are very warm and humid, while winters can be cold, with occasional snowfall. Rainfall is frequent throughout the year, often arriving in heavy bursts, especially during spring and late summer. The changing weather patterns shape much of the city's seasonal activity, from outdoor events in warmer months to a slower pace during the wetter, cooler periods. Now, let’s explore all the climate details to give you a complete picture.
Huntsville Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Huntsville - and find the best time to visit.
Monthly Temperature in Huntsville
Visitors to Huntsville can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 32°C (90°F) in August to a chilly 10°C (50°F) in the coolest month, January.
Nights vary from 21°C (70°F) in August to around -1°C (30°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Huntsville
Huntsville is known for its substantial rain/snowfall, with annual precipitation reaching 1388 mm (55 in). Huntsville offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month December (166 mm (6.5 in)) and the driest month September (80 mm (3.1 in)) is not too significant. For more details, please visit our Huntsville Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Huntsville by Month
The relative humidity is high throughout the year in Huntsville.
The city experiences its highest humidity in July, reaching 73%. In April, the humidity drops to its lowest level at 63%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Huntsville
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: September
- Warmest weather: June, July and August
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Huntsville
What is the best time to visit Huntsville?
September typically offers the most optimal weather in Huntsville. In contrast, January and December tend to have less optimal conditions. Huntsville has very warm summers and cold winters.
What temperatures can I expect in Huntsville?
Daytime highs range from 10°C (50°F) in January to 32°C (90°F) in August. Nighttime lows range from -1°C (30°F) to 21°C (70°F). Temperatures vary considerably through the year.
How much rain does Huntsville get?
Annual rainfall is around 1388 mm (55 in). December is the wettest month with 166 mm (6.5 in), while September is the driest with 80 mm (3.1 in).
Huntsville 3-Day Forecast
Huntsville (AL) 3-Day Forecast
Huntsville on the map
Huntsville is highlighted - select any city to see its climate.
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