The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Charlotte, NC vs O'Fallon, MO

2025 Compare Climate & Weather:
Charlotte, NC vs O'Fallon, MO

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Highlights

On average, there are 200 sunny days per year in O'Fallon. Charlotte averages 218 sunny days per year. The US average is 205 sunny days.

O'Fallon, Missouri gets 42.7 inches of rain, on average, per year. Charlotte, North Carolina gets 43.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

O'Fallon averages 13.4 inches of snow per year. Charlotte averages 2.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

O'Fallon, Missouri
Summer High: the July high is around 88 degrees
Winter Low: the January low is 20.7
Rain: averages 42.7 inches of rain a year
Snow: averages 13.4 inches of snow a year

Charlotte, North Carolina
Summer High: the July high is around 89.7 degrees
Winter Low: the January low is 30
Rain: averages 43.1 inches of rain a year
Snow: averages 2.3 inches of snow a year

BestPlaces Comfort Index
O'Fallon

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

7.2 / 10
September, May and June are the most pleasant months in O'Fallon, while January and December are the least comfortable months.

Charlotte

The annual BestPlaces Comfort Index for Charlotte is 7.5 (10=best), which means it is more comfortable than most places in North Carolina.

7.5 / 10
May, September and October are the most pleasant months in Charlotte, while July and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthCharlotte, NCO'Fallon, MO
January51° / 30°39° / 21°
February55° / 33°45° / 24°
March63° / 40°55° / 33°
April72° / 47°67° / 44°
May79° / 56°76° / 54°
June87° / 65°84° / 63°
July90° / 69°88° / 67°
August88° / 68°87° / 65°
September82° / 61°80° / 56°
October72° / 49°68° / 45°
November63° / 40°56° / 35°
December53° / 32°42° / 24°
Hot, Freezing, Rainy, Snowy Days: Charlotte / O'Fallon
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 018 / 269 / 71 / 2
February0 / 014 / 219 / 80 / 2
March0 / 07 / 159 / 100 / 1
April0 / 01 / 39 / 110 / 0
May2 / 10 / 09 / 120 / 0
June9 / 60 / 010 / 100 / 0
July16 / 120 / 010 / 90 / 0
August11 / 110 / 09 / 80 / 0
September4 / 30 / 07 / 80 / 0
October0 / 01 / 27 / 90 / 0
November0 / 07 / 128 / 90 / 0
December0 / 017 / 249 / 80 / 2
July is the hottest month for Charlotte with an average high temperature of 89.7°, which ranks it as warmer than most places in North Carolina. In Charlotte, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Charlotte are May, September and April.

July is the hottest month for O'Fallon with an average high temperature of 88.0°, which ranks it as about average compared to other places in Missouri. In O'Fallon, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for O'Fallon are September, May and June.
January has the coldest nighttime temperatures for Charlotte with an average of 30.0°. This is about average compared to other places in North Carolina.

January has the coldest nighttime temperatures for O'Fallon with an average of 20.7°. This is about average compared to other places in Missouri.

In Charlotte, there are 41.9 days annually when the high temperature is over 90°, which is hotter than most places in North Carolina.

In O'Fallon, there are 32.2 days annually when the high temperature is over 90°, which is about average compared to other places in Missouri.

In Charlotte, there are 63.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in North Carolina.

In O'Fallon, there are 104.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Missouri.

In Charlotte, there are 0.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in North Carolina.

In O'Fallon, there are 3.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Missouri.

August is the wettest month in Charlotte with 4.2 inches of rain, and the driest month is April with 3.1 inches. The wettest season is Autumn with 28% of yearly precipitation and 24% occurs in Summer, which is the driest season. The annual rainfall of 43.1 inches in Charlotte means that it is one of the driest places in North Carolina.


May is the wettest month in O'Fallon with 4.9 inches of rain, and the driest month is January with 2.4 inches. The wettest season is Summer with 29% of yearly precipitation and 19% occurs in Spring, which is the driest season. The annual rainfall of 42.7 inches in O'Fallon means that it is drier than most places in Missouri.

July is the rainiest month in Charlotte with 10.2 days of rain, and October is the driest month with only 6.8 rainy days. There are 104.9 rainy days annually in Charlotte, which is less rainy than most places in North Carolina. 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.

May is the rainiest month in O'Fallon with 11.6 days of rain, and January is the driest month with only 7.2 rainy days. There are 106.5 rainy days annually in O'Fallon, which is one of the rainiest places in Missouri. 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 2.3 inches in Charlotte means that it is about average compared to other places in North Carolina.

An annual snowfall of 13.4 inches in O'Fallon means that it is about average compared to other places in Missouri.
January is the snowiest month in Charlotte with 1.1 inches of snow, and 2 months of the year have significant snowfall.

February is the snowiest month in O'Fallon with 4.5 inches of snow, and 5 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 Charlotte    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

Start Your Review of Charlotte

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Reviews for O'fallon    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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Zips In Charlotte, North Carolina
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Zips In O'FALLON, MISSOURI
63366, 63368
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