2025 Compare Climate & Weather:
Jackson, TN vs St. Louis, MO

Highlights

On average, there are 202 sunny days per year in St. Louis. Jackson averages 213 sunny days per year. The US average is 205 sunny days.

St. Louis, Missouri gets 42.2 inches of rain, on average, per year. Jackson, Tennessee gets 54.3 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

St. Louis averages 15.5 inches of snow per year. Jackson averages 4.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

St. Louis, Missouri
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 22.8
Rain: averages 42.2 inches of rain a year
Snow: averages 15.5 inches of snow a year

Jackson, Tennessee
Summer High: the July high is around 90.5 degrees
Winter Low: the January low is 27.6
Rain: averages 54.3 inches of rain a year
Snow: averages 4.1 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for St. Louis is 7.2 (10=best), which means it is more comfortable than most places in Missouri.

The annual BestPlaces Comfort Index for Jackson is 7.1 (10=best), which means it is less comfortable than most places in Tennessee.

Today's Weather - Jackson, TN

75°F

Today's Weather - St. Louis, MO

71°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Jackson / St. Louis

July is the hottest month for Jackson with an average high temperature of 90.5°, which ranks it as one of the hottest places in Tennessee. In Jackson, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Jackson are May, October and September.

July is the hottest month for St. Louis with an average high temperature of 88.5°, which ranks it as about average compared to other places in Missouri. In St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Louis are May, September and June.

January has the coldest nighttime temperatures for Jackson with an average of 27.6°. This is warmer than most places in Tennessee.

January has the coldest nighttime temperatures for St. Louis with an average of 22.8°. This is warmer than most places in Missouri.

In Jackson, there are 51.9 days annually when the high temperature is over 90°, which is one of the hottest places in Tennessee.

In St. Louis, there are 36.0 days annually when the high temperature is over 90°, which is hotter than most places in Missouri.

In Jackson, there are 75.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In St. Louis, there are 91.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.

In Jackson, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

In St. Louis, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Missouri.

May is the wettest month in Jackson with 5.8 inches of rain, and the driest month is August with 3.1 inches. The wettest season is Summer with 29% of yearly precipitation and 23% occurs in Autumn, which is the driest season. The annual rainfall of 54.3 inches in Jackson means that it is wetter than most places in Tennessee.


May is the wettest month in St. Louis with 4.8 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in St. Louis means that it is drier than most places in Missouri.

May is the rainiest month in Jackson with 10.7 days of rain, and August is the driest month with only 6.6 rainy days. There are 111.6 rainy days annually in Jackson, which is less rainy than most places in Tennessee. The rainiest season is Summer when it rains 28% of the time and the driest is Autumn with only a 22% chance of a rainy day.

May is the rainiest month in St. Louis with 11.3 days of rain, and September is the driest month with only 7.0 rainy days. There are 105.3 rainy days annually in St. Louis, which is rainier than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 4.1 inches in Jackson means that it is about average compared to other places in Tennessee.

An annual snowfall of 15.5 inches in St. Louis means that it is snowier than most places in Missouri.

February is the snowiest month in Jackson with 1.7 inches of snow, and 3 months of the year have significant snowfall.

January is the snowiest month in St. Louis with 4.9 inches of snow, and 5 months of the year have significant snowfall.