Jacksonville (AR) Temperature by Month
Jacksonville in Arkansas, United States of America sees significant seasonal temperature differences, with daytime highs between 10°C (50°F) in January and 33°C (91°F) in July, averaging 22°C (72°F) annually. Explore the full monthly breakdown below.
Jacksonville Monthly Temperatures
The climate in Jacksonville is dynamic, ranging widely from chilly in winter to very warm in summer. Nights are significantly colder, with lows dropping from 22°C (72°F) in July to -2°C (28°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Jacksonville by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 351 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Jacksonville vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
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Jacksonville vs World: Temperature Compared
Jacksonville's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Queenstown, New Zealand averages 10°C (50°F) annually — remember seasons are flipped, so its coldest months fall in June and July.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
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 Jacksonville this rarely lasts long on the ground.
For more on Jacksonville's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jacksonville climate page.
