2025 Compare Climate & Weather:
Loudon, TN vs Pana, IL

Highlights

On average, there are 201 sunny days per year in Pana. Loudon averages 204 sunny days per year. The US average is 205 sunny days.

Pana, Illinois gets 39.9 inches of rain, on average, per year. Loudon, Tennessee gets 53.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Pana averages 15.1 inches of snow per year. Loudon averages 4.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Pana, Illinois
Summer High: the July high is around 86.6 degrees
Winter Low: the January low is 18
Rain: averages 39.9 inches of rain a year
Snow: averages 15.1 inches of snow a year

Loudon, Tennessee
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 27.7
Rain: averages 53.2 inches of rain a year
Snow: averages 4.8 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Pana is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

The annual BestPlaces Comfort Index for Loudon is 7.3 (10=best), which means it is about average compared to other places in Tennessee.

Today's Weather - Loudon, TN

52°F

Today's Weather - Pana, IL

48°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Loudon / Pana

July is the hottest month for Loudon with an average high temperature of 88.5°, which ranks it as about average compared to other places in Tennessee. In Loudon, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Loudon are May, September and October.

July is the hottest month for Pana with an average high temperature of 86.6°, which ranks it as warmer than most places in Illinois. In Pana, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pana are September, May and June.

January has the coldest nighttime temperatures for Loudon with an average of 27.7°. This is warmer than most places in Tennessee.

January has the coldest nighttime temperatures for Pana with an average of 18.0°. This is warmer than most places in Illinois.

In Loudon, there are 33.2 days annually when the high temperature is over 90°, which is about average compared to other places in Tennessee.

In Pana, there are 24.0 days annually when the high temperature is over 90°, which is hotter than most places in Illinois.

In Loudon, there are 77.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Tennessee.

In Pana, there are 114.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

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

In Pana, there are 5.8 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

December is the wettest month in Loudon with 5.3 inches of rain, and the driest month is October with 2.9 inches. The wettest season is Spring with 28% of yearly precipitation and 21% occurs in Winter, which is the driest season. The annual rainfall of 53.2 inches in Loudon means that it is about average compared to other places in Tennessee.


May is the wettest month in Pana with 4.4 inches of rain, and the driest month is January with 2.1 inches. The wettest season is Autumn with 28% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 39.9 inches in Pana means that it is wetter than most places in Illinois.

July is the rainiest month in Loudon with 11.5 days of rain, and September is the driest month with only 7.7 rainy days. There are 121.5 rainy days annually in Loudon, which is rainier than most places in Tennessee. The rainiest season is Spring when it rains 27% of the time and the driest is Winter with only a 21% chance of a rainy day.

May is the rainiest month in Pana with 11.4 days of rain, and September is the driest month with only 7.1 rainy days. There are 106.2 rainy days annually in Pana, which is about average compared to other places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 4.8 inches in Loudon means that it is snowier than most places in Tennessee.

An annual snowfall of 15.1 inches in Pana means that it is less snowy than most places in Illinois.

January is the snowiest month in Loudon with 2.1 inches of snow, and 3 months of the year have significant snowfall.

January is the snowiest month in Pana with 4.5 inches of snow, and 5 months of the year have significant snowfall.