2025 Compare Climate & Weather:
Olathe, CO vs Pekin, IL

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Highlights

On average, there are 190 sunny days per year in Pekin. Olathe averages 245 sunny days per year. The US average is 205 sunny days.

Pekin, Illinois gets 37.7 inches of rain, on average, per year. Olathe, Colorado gets 10.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Pekin averages 24.4 inches of snow per year. Olathe averages 35.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Pekin, Illinois
Summer High: the July high is around 85.7 degrees
Winter Low: the January low is 16
Rain: averages 37.7 inches of rain a year
Snow: averages 24.4 inches of snow a year

Olathe, Colorado
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 14.4
Rain: averages 10.5 inches of rain a year
Snow: averages 35.9 inches of snow a year

BestPlaces Comfort Index

Pekin

The annual BestPlaces Comfort Index for Pekin is 7.0 (10=best), which means it is about average compared to other places in Illinois.

7 / 10

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

Olathe

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

7.2 / 10

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

Average Monthly High / Low (°F)

Month	Olathe, CO	Pekin, IL
January	39° / 14°	33° / 16°
February	45° / 21°	38° / 20°
March	55° / 28°	51° / 30°
April	64° / 35°	64° / 41°
May	74° / 43°	74° / 51°
June	85° / 51°	83° / 61°
July	90° / 57°	86° / 65°
August	87° / 55°	84° / 62°
September	78° / 47°	78° / 54°
October	66° / 35°	66° / 42°
November	51° / 25°	51° / 32°
December	39° / 16°	37° / 20°

Hot, Freezing, Rainy, Snowy Days: Olathe / Pekin

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	31 / 28	5 / 9	4 / 6
February	0 / 0	26 / 25	5 / 8	3 / 4
March	0 / 0	23 / 19	6 / 10	3 / 2
April	0 / 0	10 / 5	7 / 11	1 / 0
May	1 / 1	1 / 0	7 / 12	0 / 0
June	8 / 4	0 / 0	4 / 10	0 / 0
July	17 / 7	0 / 0	7 / 9	0 / 0
August	9 / 5	0 / 0	8 / 9	0 / 0
September	1 / 2	1 / 0	7 / 8	0 / 0
October	0 / 0	10 / 5	6 / 9	1 / 0
November	0 / 0	26 / 16	6 / 9	2 / 1
December	0 / 0	30 / 26	5 / 10	5 / 5

July is the hottest month for Olathe with an average high temperature of 89.8°, which ranks it as warmer than most places in Colorado. In Olathe, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Olathe are September, May and June.

July is the hottest month for Pekin with an average high temperature of 85.7°, which ranks it as about average compared to other places in Illinois. In Pekin, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Pekin are September, May and June.

January has the coldest nighttime temperatures for Olathe with an average of 14.4°. This is about average compared to other places in Colorado.

January has the coldest nighttime temperatures for Pekin with an average of 16.0°. This is about average compared to other places in Illinois.

In Olathe, there are 35.1 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Pekin, there are 19.5 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Olathe, there are 156.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Pekin, there are 123.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Olathe, there are 3.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

In Pekin, there are 8.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

September is the wettest month in Olathe with 1.3 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Winter with 32% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 10.5 inches in Olathe means that it is one of the driest places in Colorado.

May is the wettest month in Pekin with 4.5 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 30% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in Pekin means that it is drier than most places in Illinois.

August is the rainiest month in Olathe with 7.9 days of rain, and June is the driest month with only 4.3 rainy days. There are 73.0 rainy days annually in Olathe, which is less rainy than most places in Colorado. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 21% chance of a rainy day.

May is the rainiest month in Pekin with 11.5 days of rain, and September is the driest month with only 7.6 rainy days. There are 111.9 rainy days annually in Pekin, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 35.9 inches in Olathe means that it is less snowy than most places in Colorado.

An annual snowfall of 24.4 inches in Pekin means that it is snowier than most places in Illinois.

January is the snowiest month in Olathe with 9.3 inches of snow, and 7 months of the year have significant snowfall.

December is the snowiest month in Pekin with 7.3 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 Olathe 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 Pekin 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:
Olathe, CO vs Pekin, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Olathe / Pekin

January has the coldest nighttime temperatures for Olathe with an average of 14.4°. This is about average compared to other places in Colorado.

January has the coldest nighttime temperatures for Pekin with an average of 16.0°. This is about average compared to other places in Illinois.

In Olathe, there are 35.1 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Pekin, there are 19.5 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Olathe, there are 3.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

In Pekin, there are 8.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

An annual snowfall of 35.9 inches in Olathe means that it is less snowy than most places in Colorado.

An annual snowfall of 24.4 inches in Pekin means that it is snowier than most places in Illinois.

January is the snowiest month in Olathe with 9.3 inches of snow, and 7 months of the year have significant snowfall.

December is the snowiest month in Pekin with 7.3 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Olathe 2 Reviews

Reviews for Pekin 2 Reviews

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2025 Compare Climate & Weather:Olathe, CO vs Pekin, IL

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Olathe / Pekin

January has the coldest nighttime temperatures for Olathe with an average of 14.4°. This is about average compared to other places in Colorado.January has the coldest nighttime temperatures for Pekin with an average of 16.0°. This is about average compared to other places in Illinois.

In Olathe, there are 35.1 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.In Pekin, there are 19.5 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Olathe, there are 3.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.In Pekin, there are 8.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

An annual snowfall of 35.9 inches in Olathe means that it is less snowy than most places in Colorado.An annual snowfall of 24.4 inches in Pekin means that it is snowier than most places in Illinois.

January is the snowiest month in Olathe with 9.3 inches of snow, and 7 months of the year have significant snowfall.December is the snowiest month in Pekin with 7.3 inches of snow, and 6 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Olathe 2 Reviews

Reviews for Pekin 2 Reviews

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2025 Compare Climate & Weather:
Olathe, CO vs Pekin, IL

January has the coldest nighttime temperatures for Olathe with an average of 14.4°. This is about average compared to other places in Colorado.

January has the coldest nighttime temperatures for Pekin with an average of 16.0°. This is about average compared to other places in Illinois.

In Olathe, there are 35.1 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Pekin, there are 19.5 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Olathe, there are 3.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Colorado.

In Pekin, there are 8.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

An annual snowfall of 35.9 inches in Olathe means that it is less snowy than most places in Colorado.

An annual snowfall of 24.4 inches in Pekin means that it is snowier than most places in Illinois.

January is the snowiest month in Olathe with 9.3 inches of snow, and 7 months of the year have significant snowfall.

December is the snowiest month in Pekin with 7.3 inches of snow, and 6 months of the year have significant snowfall.