Jackson (MS) Temperature by Month
The average annual maximum temperature in Jackson, Mississippi, United States of America is 25°C (77°F), with daytime highs ranging from 14°C (57°F) in January to 34°C (93°F) in August. This page covers monthly averages, day-night differences, and how Jackson compares to cities worldwide.
Jackson Monthly Temperatures
The weather in Jackson experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 22°C (72°F) in August to 2°C (36°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Jackson by month:
The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 273 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Jackson 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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Jackson vs World: Temperature Compared
Jackson's average annual maximum temperature is 25°C (77°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.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Jackson?
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 Jackson, January is the coolest month, with average highs of 14°C (57°F) and humidity around 76% — considered high. In August, the warmest month, temperatures average 34°C (93°F) with 77% 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 Jackson this rarely lasts long on the ground.
For more on Jackson's weather — including monthly rainfall, sunshine hours, and humidity — visit our Jackson climate page.
