2025 Compare Climate & Weather:
Decatur, GA vs Ann Arbor, MI

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Highlights

On average, there are 178 sunny days per year in Ann Arbor. Decatur averages 218 sunny days per year. The US average is 205 sunny days.

Ann Arbor, Michigan gets 36 inches of rain, on average, per year. Decatur, Georgia gets 52.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Ann Arbor averages 43 inches of snow per year. Decatur averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Ann Arbor, Michigan
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 16.5
Rain: averages 36 inches of rain a year
Snow: averages 43 inches of snow a year

Decatur, Georgia
Summer High: the July high is around 87.9 degrees
Winter Low: the January low is 32.6
Rain: averages 52.5 inches of rain a year
Snow: averages 1.5 inches of snow a year

BestPlaces Comfort Index

Ann Arbor

The annual BestPlaces Comfort Index for Ann Arbor is 6.7 (10=best), which means it is more comfortable than most places in Michigan.

6.7 / 10

August, July and June are the most pleasant months in Ann Arbor, while January and December are the least comfortable months.

Decatur

The annual BestPlaces Comfort Index for Decatur is 7.6 (10=best), which means it is one of the most pleasant places in Georgia.

7.6 / 10

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

Average Monthly High / Low (°F)

Month	Decatur, GA	Ann Arbor, MI
January	52° / 33°	31° / 17°
February	57° / 36°	35° / 18°
March	65° / 42°	45° / 26°
April	73° / 49°	59° / 36°
May	79° / 59°	70° / 47°
June	85° / 67°	79° / 56°
July	88° / 70°	83° / 61°
August	87° / 69°	81° / 59°
September	82° / 63°	74° / 51°
October	72° / 52°	61° / 40°
November	64° / 42°	48° / 31°
December	54° / 35°	35° / 22°

Hot, Freezing, Rainy, Snowy Days: Decatur / Ann Arbor

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	15 / 29	10 / 14	0 / 10
February	0 / 0	10 / 26	10 / 11	0 / 8
March	0 / 0	4 / 25	10 / 11	0 / 5
April	0 / 0	1 / 9	9 / 12	0 / 1
May	1 / 0	0 / 1	9 / 12	0 / 0
June	6 / 1	0 / 0	10 / 11	0 / 0
July	10 / 3	0 / 0	11 / 10	0 / 0
August	9 / 1	0 / 0	9 / 10	0 / 0
September	3 / 0	0 / 0	7 / 10	0 / 0
October	0 / 0	0 / 6	7 / 11	0 / 0
November	0 / 0	4 / 16	8 / 12	0 / 2
December	0 / 0	13 / 28	10 / 14	0 / 8

July is the hottest month for Decatur with an average high temperature of 87.9°, which ranks it as cooler than most places in Georgia. In Decatur, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decatur are May, September and April.

July is the hottest month for Ann Arbor with an average high temperature of 82.8°, which ranks it as warmer than most places in Michigan. In Ann Arbor, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Ann Arbor are June, August and September.

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.

January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

In Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Decatur, there are 46.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Georgia.

In Ann Arbor, there are 140.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Michigan.

In Decatur, 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 Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

July is the wettest month in Decatur with 5.1 inches of rain, and the driest month is April with 3.6 inches. The wettest season is Spring with 26% of yearly precipitation and 24% occurs in Winter, which is the driest season. The annual rainfall of 52.5 inches in Decatur means that it is wetter than most places in Georgia.

June is the wettest month in Ann Arbor with 3.7 inches of rain, and the driest month is February with 2.2 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 36.0 inches in Ann Arbor means that it is wetter than most places in Michigan.

July is the rainiest month in Decatur with 10.8 days of rain, and October is the driest month with only 6.8 rainy days. There are 108.7 rainy days annually in Decatur, which is rainier than most places in Georgia. The rainiest season is Autumn when it rains 28% of the time and the driest is Winter with only a 21% chance of a rainy day.

December is the rainiest month in Ann Arbor with 13.9 days of rain, and September is the driest month with only 9.6 rainy days. There are 136.9 rainy days annually in Ann Arbor, which is rainier than most places in Michigan. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.

An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.

January is the snowiest month in Ann Arbor with 12.4 inches of snow, and 6 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 Decatur 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 Ann Arbor 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:
Decatur, GA vs Ann Arbor, MI

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Decatur / Ann Arbor

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.

January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

In Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Decatur, 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 Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.

An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.

January is the snowiest month in Ann Arbor with 12.4 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

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2025 Compare Climate & Weather:Decatur, GA vs Ann Arbor, MI

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Decatur / Ann Arbor

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

In Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.In Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Decatur, 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 Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.January is the snowiest month in Ann Arbor with 12.4 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Decatur 2 Reviews

Reviews for Ann Arbor 2 Reviews

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Zips In Decatur, Georgia

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2025 Compare Climate & Weather:
Decatur, GA vs Ann Arbor, MI

January has the coldest nighttime temperatures for Decatur with an average of 32.6°. This is about average compared to other places in Georgia.

January has the coldest nighttime temperatures for Ann Arbor with an average of 16.5°. This is warmer than most places in Michigan.

In Decatur, there are 28.3 days annually when the high temperature is over 90°, which is cooler than most places in Georgia.

In Ann Arbor, there are 5.8 days annually when the high temperature is over 90°, which is about average compared to other places in Michigan.

In Decatur, 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 Ann Arbor, there are 3.9 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Michigan.

An annual snowfall of 1.5 inches in Decatur means that it is snowier than most places in Georgia.

An annual snowfall of 43.0 inches in Ann Arbor means that it is less snowy than most places in Michigan.

January is the snowiest month in Decatur with 0.6 inches of snow, and 1 month of the year have significant snowfall.

January is the snowiest month in Ann Arbor with 12.4 inches of snow, and 6 months of the year have significant snowfall.