2025 Compare Climate & Weather:
Sullivan, IL vs Burke, SD

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Highlights

On average, there are 224 sunny days per year in Burke. Sullivan averages 194 sunny days per year. The US average is 205 sunny days.

Burke, South Dakota gets 25.4 inches of rain, on average, per year. Sullivan, Illinois gets 40.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Burke averages 46.1 inches of snow per year. Sullivan averages 12.3 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Burke, South Dakota
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 10
Rain: averages 25.4 inches of rain a year
Snow: averages 46.1 inches of snow a year

Sullivan, Illinois
Summer High: the July high is around 85.8 degrees
Winter Low: the January low is 18.8
Rain: averages 40.6 inches of rain a year
Snow: averages 12.3 inches of snow a year

BestPlaces Comfort Index

Burke

The annual BestPlaces Comfort Index for Burke is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

7 / 10

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

Sullivan

The annual BestPlaces Comfort Index for Sullivan is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

7.2 / 10

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

Average Monthly High / Low (°F)

Month	Sullivan, IL	Burke, SD
January	35° / 19°	32° / 10°
February	40° / 22°	36° / 14°
March	51° / 32°	46° / 23°
April	64° / 42°	59° / 34°
May	74° / 53°	70° / 46°
June	83° / 62°	79° / 56°
July	86° / 66°	86° / 62°
August	85° / 63°	85° / 60°
September	79° / 55°	76° / 50°
October	67° / 44°	62° / 36°
November	52° / 34°	45° / 23°
December	39° / 23°	33° / 13°

Hot, Freezing, Rainy, Snowy Days: Sullivan / Burke

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	27 / 30	8 / 4	3 / 4
February	0 / 0	23 / 27	7 / 4	2 / 3
March	0 / 0	17 / 26	9 / 6	1 / 3
April	0 / 0	5 / 12	10 / 8	0 / 2
May	0 / 1	0 / 1	12 / 10	0 / 0
June	4 / 3	0 / 0	10 / 10	0 / 0
July	7 / 9	0 / 0	8 / 8	0 / 0
August	6 / 8	0 / 0	7 / 7	0 / 0
September	2 / 3	0 / 1	7 / 7	0 / 0
October	0 / 0	3 / 9	8 / 6	0 / 0
November	0 / 0	14 / 24	9 / 5	0 / 3
December	0 / 0	25 / 30	8 / 4	2 / 4

July is the hottest month for Sullivan with an average high temperature of 85.8°, which ranks it as about average compared to other places in Illinois. In Sullivan, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sullivan are September, May and June.

July is the hottest month for Burke with an average high temperature of 85.8°, which ranks it as warmer than most places in South Dakota. In Burke, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Burke are June, September and August.

January has the coldest nighttime temperatures for Sullivan with an average of 18.8°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for Burke with an average of 10.0°. This is warmer than most places in South Dakota.

In Sullivan, there are 18.8 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Burke, there are 23.3 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Sullivan, there are 113.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Burke, there are 159.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Sullivan, there are 4.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In Burke, there are 19.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

May is the wettest month in Sullivan with 4.5 inches of rain, and the driest month is February with 2.1 inches. The wettest season is Autumn with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 40.6 inches in Sullivan means that it is wetter than most places in Illinois.

June is the wettest month in Burke with 4.0 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Autumn with 38% of yearly precipitation and 7% occurs in Spring, which is the driest season. The annual rainfall of 25.4 inches in Burke means that it is wetter than most places in South Dakota.

May is the rainiest month in Sullivan with 11.5 days of rain, and September is the driest month with only 6.6 rainy days. There are 101.3 rainy days annually in Sullivan, which is less rainy than most places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.

June is the rainiest month in Burke with 10.0 days of rain, and January is the driest month with only 3.8 rainy days. There are 78.1 rainy days annually in Burke, which is less rainy than most places in South Dakota. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 15% chance of a rainy day.

An annual snowfall of 12.3 inches in Sullivan means that it is less snowy than most places in Illinois.

An annual snowfall of 46.1 inches in Burke means that it is one of the snowiest places in South Dakota.

January is the snowiest month in Sullivan with 4.8 inches of snow, and 4 months of the year have significant snowfall.

March is the snowiest month in Burke with 8.9 inches of snow, and 7 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 Sullivan 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

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Reviews for Burke 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 Burke

See all reviews

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2025 Compare Climate & Weather:
Sullivan, IL vs Burke, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sullivan / Burke

January has the coldest nighttime temperatures for Sullivan with an average of 18.8°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for Burke with an average of 10.0°. This is warmer than most places in South Dakota.

In Sullivan, there are 18.8 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Burke, there are 23.3 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Sullivan, there are 113.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Burke, there are 159.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Sullivan, there are 4.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In Burke, there are 19.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 12.3 inches in Sullivan means that it is less snowy than most places in Illinois.

An annual snowfall of 46.1 inches in Burke means that it is one of the snowiest places in South Dakota.

January is the snowiest month in Sullivan with 4.8 inches of snow, and 4 months of the year have significant snowfall.

March is the snowiest month in Burke with 8.9 inches of snow, and 7 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Sullivan 2 Reviews

Reviews for Burke 2 Reviews

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2025 Compare Climate & Weather:Sullivan, IL vs Burke, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sullivan / Burke

January has the coldest nighttime temperatures for Sullivan with an average of 18.8°. This is warmer than most places in Illinois.January has the coldest nighttime temperatures for Burke with an average of 10.0°. This is warmer than most places in South Dakota.

In Sullivan, there are 18.8 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.In Burke, there are 23.3 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Sullivan, there are 113.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.In Burke, there are 159.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Sullivan, there are 4.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.In Burke, there are 19.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 12.3 inches in Sullivan means that it is less snowy than most places in Illinois.An annual snowfall of 46.1 inches in Burke means that it is one of the snowiest places in South Dakota.

January is the snowiest month in Sullivan with 4.8 inches of snow, and 4 months of the year have significant snowfall.March is the snowiest month in Burke with 8.9 inches of snow, and 7 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Sullivan 2 Reviews

Reviews for Burke 2 Reviews

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2025 Compare Climate & Weather:
Sullivan, IL vs Burke, SD

January has the coldest nighttime temperatures for Sullivan with an average of 18.8°. This is warmer than most places in Illinois.

January has the coldest nighttime temperatures for Burke with an average of 10.0°. This is warmer than most places in South Dakota.

In Sullivan, there are 18.8 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

In Burke, there are 23.3 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Sullivan, there are 113.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Burke, there are 159.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Sullivan, there are 4.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

In Burke, there are 19.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 12.3 inches in Sullivan means that it is less snowy than most places in Illinois.

An annual snowfall of 46.1 inches in Burke means that it is one of the snowiest places in South Dakota.

January is the snowiest month in Sullivan with 4.8 inches of snow, and 4 months of the year have significant snowfall.

March is the snowiest month in Burke with 8.9 inches of snow, and 7 months of the year have significant snowfall.