2025 Compare Climate & Weather:
Crystal Lake, IL vs Johnson City, TN

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Highlights

On average, there are 201 sunny days per year in Johnson City. Crystal Lake averages 186 sunny days per year. The US average is 205 sunny days.

Johnson City, Tennessee gets 43.7 inches of rain, on average, per year. Crystal Lake, Illinois gets 36.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Johnson City averages 10.9 inches of snow per year. Crystal Lake averages 35.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Johnson City, Tennessee
Summer High: the July high is around 85.5 degrees
Winter Low: the January low is 25.5
Rain: averages 43.7 inches of rain a year
Snow: averages 10.9 inches of snow a year

Crystal Lake, Illinois
Summer High: the July high is around 81.8 degrees
Winter Low: the January low is 12.7
Rain: averages 36.7 inches of rain a year
Snow: averages 35.1 inches of snow a year

BestPlaces Comfort Index

Johnson City

The annual BestPlaces Comfort Index for Johnson City is 7.5 (10=best), which means it is one of the most pleasant places in Tennessee.

7.5 / 10

September, June and May are the most pleasant months in Johnson City, while January and February are the least comfortable months.

Crystal Lake

The annual BestPlaces Comfort Index for Crystal Lake is 6.8 (10=best), which means it is less comfortable than most places in Illinois.

6.8 / 10

June, August and September are the most pleasant months in Crystal Lake, while January and December are the least comfortable months.

Average Monthly High / Low (°F)

Month	Crystal Lake, IL	Johnson City, TN
January	28° / 13°	46° / 26°
February	33° / 17°	50° / 28°
March	44° / 26°	59° / 35°
April	57° / 37°	68° / 43°
May	68° / 47°	76° / 51°
June	78° / 57°	83° / 60°
July	82° / 62°	86° / 64°
August	80° / 61°	85° / 63°
September	73° / 52°	79° / 56°
October	60° / 40°	70° / 44°
November	47° / 30°	59° / 35°
December	32° / 18°	49° / 28°

Hot, Freezing, Rainy, Snowy Days: Crystal Lake / Johnson City

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	30 / 23	9 / 12	6 / 3
February	0 / 0	26 / 18	8 / 11	5 / 2
March	0 / 0	23 / 13	9 / 12	3 / 1
April	0 / 0	9 / 4	11 / 12	1 / 0
May	0 / 0	1 / 0	12 / 13	0 / 0
June	2 / 2	0 / 0	11 / 13	0 / 0
July	3 / 6	0 / 0	9 / 13	0 / 0
August	2 / 5	0 / 0	10 / 11	0 / 0
September	0 / 1	0 / 0	9 / 9	0 / 0
October	0 / 0	6 / 4	9 / 8	0 / 0
November	0 / 0	18 / 13	10 / 10	1 / 0
December	0 / 0	27 / 21	10 / 12	6 / 2

July is the hottest month for Crystal Lake with an average high temperature of 81.8°, which ranks it as one of the coolest places in Illinois. In Crystal Lake, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Crystal Lake are June, August and July.

July is the hottest month for Johnson City with an average high temperature of 85.5°, which ranks it as cooler than most places in Tennessee. In Johnson City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Johnson City are September, May and June.

January has the coldest nighttime temperatures for Crystal Lake with an average of 12.7°. This is one of the coldest places in Illinois.

January has the coldest nighttime temperatures for Johnson City with an average of 25.5°. This is colder than most places in Tennessee.

In Crystal Lake, there are 6.9 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Johnson City, there are 14.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Crystal Lake, there are 138.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Illinois.

In Johnson City, there are 94.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Tennessee.

In Crystal Lake, there are 11.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Johnson City, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Tennessee.

August is the wettest month in Crystal Lake with 4.4 inches of rain, and the driest month is January with 1.7 inches. The wettest season is Autumn with 34% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 36.7 inches in Crystal Lake means that it is drier than most places in Illinois.

July is the wettest month in Johnson City with 5.2 inches of rain, and the driest month is October with 2.2 inches. The wettest season is Autumn with 31% of yearly precipitation and 19% occurs in Winter, which is the driest season. The annual rainfall of 43.7 inches in Johnson City means that it is one of the driest places in Tennessee.

May is the rainiest month in Crystal Lake with 11.6 days of rain, and February is the driest month with only 7.6 rainy days. There are 114.2 rainy days annually in Crystal Lake, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% chance of a rainy day.

July is the rainiest month in Johnson City with 12.9 days of rain, and October is the driest month with only 8.4 rainy days. There are 134.8 rainy days annually in Johnson City, which is one of the rainiest places in Tennessee. The rainiest season is Autumn when it rains 27% of the time and the driest is Winter with only a 20% chance of a rainy day.

An annual snowfall of 35.1 inches in Crystal Lake means that it is one of the snowiest places in Illinois.

An annual snowfall of 10.9 inches in Johnson City means that it is one of the snowiest places in Tennessee.

January is the snowiest month in Crystal Lake with 10.9 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Johnson City with 4.0 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 Crystal Lake 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 Johnson City 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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See all reviews

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2025 Compare Climate & Weather:
Crystal Lake, IL vs Johnson City, TN

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Crystal Lake / Johnson City

January has the coldest nighttime temperatures for Crystal Lake with an average of 12.7°. This is one of the coldest places in Illinois.

January has the coldest nighttime temperatures for Johnson City with an average of 25.5°. This is colder than most places in Tennessee.

In Crystal Lake, there are 6.9 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Johnson City, there are 14.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Crystal Lake, there are 11.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Johnson City, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Tennessee.

An annual snowfall of 35.1 inches in Crystal Lake means that it is one of the snowiest places in Illinois.

An annual snowfall of 10.9 inches in Johnson City means that it is one of the snowiest places in Tennessee.

January is the snowiest month in Crystal Lake with 10.9 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Johnson City with 4.0 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Crystal Lake 2 Reviews

Reviews for Johnson City 2 Reviews

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Zips In Crystal Lake, Illinois

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2025 Compare Climate & Weather:Crystal Lake, IL vs Johnson City, TN

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Crystal Lake / Johnson City

January has the coldest nighttime temperatures for Crystal Lake with an average of 12.7°. This is one of the coldest places in Illinois.January has the coldest nighttime temperatures for Johnson City with an average of 25.5°. This is colder than most places in Tennessee.

In Crystal Lake, there are 6.9 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.In Johnson City, there are 14.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Crystal Lake, there are 11.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.In Johnson City, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Tennessee.

An annual snowfall of 35.1 inches in Crystal Lake means that it is one of the snowiest places in Illinois.An annual snowfall of 10.9 inches in Johnson City means that it is one of the snowiest places in Tennessee.

January is the snowiest month in Crystal Lake with 10.9 inches of snow, and 6 months of the year have significant snowfall.January is the snowiest month in Johnson City with 4.0 inches of snow, and 5 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Crystal Lake 2 Reviews

Reviews for Johnson City 2 Reviews

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Zips In Crystal Lake, Illinois

Zips In JOHNSON CITY, TENNESSEE

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Learn More About Johnson City, Tennessee

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2025 Compare Climate & Weather:
Crystal Lake, IL vs Johnson City, TN

January has the coldest nighttime temperatures for Crystal Lake with an average of 12.7°. This is one of the coldest places in Illinois.

January has the coldest nighttime temperatures for Johnson City with an average of 25.5°. This is colder than most places in Tennessee.

In Crystal Lake, there are 6.9 days annually when the high temperature is over 90°, which is one of the coolest places in Illinois.

In Johnson City, there are 14.7 days annually when the high temperature is over 90°, which is cooler than most places in Tennessee.

In Crystal Lake, there are 11.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

In Johnson City, there are 0.7 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Tennessee.

An annual snowfall of 35.1 inches in Crystal Lake means that it is one of the snowiest places in Illinois.

An annual snowfall of 10.9 inches in Johnson City means that it is one of the snowiest places in Tennessee.

January is the snowiest month in Crystal Lake with 10.9 inches of snow, and 6 months of the year have significant snowfall.

January is the snowiest month in Johnson City with 4.0 inches of snow, and 5 months of the year have significant snowfall.