2025 Compare Climate & Weather:
St. Marys, GA vs Loudon, TN

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Highlights

On average, there are 204 sunny days per year in Loudon. St. Marys averages 221 sunny days per year. The US average is 205 sunny days.

Loudon, Tennessee gets 53.2 inches of rain, on average, per year. St. Marys, Georgia gets 50.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Loudon averages 4.8 inches of snow per year. St. Marys averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

St. Marys, Georgia
Summer High: the July high is around 90.7 degrees
Winter Low: the January low is 41.2
Rain: averages 50.4 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

Loudon

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

7.3 / 10

May, September and October are the most pleasant months in Loudon, while January and December are the least comfortable months.

St. Marys

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

7.2 / 10

April, November and October are the most pleasant months in St. Marys, while July and August are the least comfortable months.

Average Monthly High / Low (°F)

Month	St. Marys, GA	Loudon, TN
January	62° / 41°	47° / 28°
February	66° / 44°	52° / 31°
March	71° / 50°	62° / 37°
April	77° / 55°	71° / 45°
May	84° / 64°	78° / 55°
June	88° / 71°	86° / 64°
July	91° / 73°	89° / 68°
August	89° / 73°	88° / 67°
September	86° / 71°	82° / 60°
October	79° / 61°	72° / 48°
November	72° / 52°	61° / 38°
December	65° / 44°	50° / 30°

Hot, Freezing, Rainy, Snowy Days: St. Marys / Loudon

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	7 / 21	8 / 11	0 / 1
February	0 / 0	2 / 16	8 / 11	0 / 1
March	0 / 0	1 / 9	8 / 11	0 / 0
April	1 / 0	0 / 2	6 / 10	0 / 0
May	4 / 1	0 / 0	6 / 11	0 / 0
June	11 / 6	0 / 0	12 / 11	0 / 0
July	17 / 12	0 / 0	13 / 12	0 / 0
August	13 / 11	0 / 0	14 / 9	0 / 0
September	4 / 3	0 / 0	12 / 8	0 / 0
October	1 / 0	0 / 1	8 / 8	0 / 0
November	0 / 0	0 / 9	6 / 10	0 / 0
December	0 / 0	4 / 19	8 / 11	0 / 1

July is the hottest month for St. Marys with an average high temperature of 90.7°, which ranks it as about average compared to other places in Georgia. In St. Marys, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Marys are April, October and May.

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.

January has the coldest nighttime temperatures for St. Marys with an average of 41.2°. This is one of the warmest places in Georgia.

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

In St. Marys, there are 50.6 days annually when the high temperature is over 90°, which is about average compared to other places in Georgia.

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 St. Marys, there are 13.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Georgia.

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 St. Marys, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

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

August is the wettest month in St. Marys with 7.1 inches of rain, and the driest month is November with 2.2 inches. The wettest season is Autumn with 36% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 50.4 inches in St. Marys means that it is wetter than most places in Georgia.

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.

August is the rainiest month in St. Marys with 13.6 days of rain, and April is the driest month with only 5.5 rainy days. There are 107.5 rainy days annually in St. Marys, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 36% of the time and the driest is Summer with only a 18% chance of a rainy day.

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.

There is rarely any recorded snowfall in St. Marys, ranking it as one of the least snowy places in Georgia.

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

Any measurable snowfall is a rare occurance in St. Marys.

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

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for St. Marys 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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Reviews for Loudon 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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2025 Compare Climate & Weather:
St. Marys, GA vs Loudon, TN

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Marys / Loudon

January has the coldest nighttime temperatures for St. Marys with an average of 41.2°. This is one of the warmest places in Georgia.

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

In St. Marys, there are 50.6 days annually when the high temperature is over 90°, which is about average compared to other places in Georgia.

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 St. Marys, there are 13.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Georgia.

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 St. Marys, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

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

There is rarely any recorded snowfall in St. Marys, ranking it as one of the least snowy places in Georgia.

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

Any measurable snowfall is a rare occurance in St. Marys.

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

DID YOU KNOW?

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Reviews for Loudon 2 Reviews

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2025 Compare Climate & Weather:St. Marys, GA vs Loudon, TN

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: St. Marys / Loudon

January has the coldest nighttime temperatures for St. Marys with an average of 41.2°. This is one of the warmest places in Georgia.January has the coldest nighttime temperatures for Loudon with an average of 27.7°. This is warmer than most places in Tennessee.

In St. Marys, there are 50.6 days annually when the high temperature is over 90°, which is about average compared to other places in Georgia.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 St. Marys, there are 13.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Georgia.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 St. Marys, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.In Loudon, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Tennessee.

There is rarely any recorded snowfall in St. Marys, ranking it as one of the least snowy places in Georgia.An annual snowfall of 4.8 inches in Loudon means that it is snowier than most places in Tennessee.

Any measurable snowfall is a rare occurance in St. Marys.January is the snowiest month in Loudon with 2.1 inches of snow, and 3 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for St. Marys 2 Reviews

Reviews for Loudon 2 Reviews

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Zips In St. Marys, Georgia

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2025 Compare Climate & Weather:
St. Marys, GA vs Loudon, TN

January has the coldest nighttime temperatures for St. Marys with an average of 41.2°. This is one of the warmest places in Georgia.

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

In St. Marys, there are 50.6 days annually when the high temperature is over 90°, which is about average compared to other places in Georgia.

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 St. Marys, there are 13.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Georgia.

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 St. Marys, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Georgia.

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

There is rarely any recorded snowfall in St. Marys, ranking it as one of the least snowy places in Georgia.

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

Any measurable snowfall is a rare occurance in St. Marys.

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