2025 Compare Climate & Weather:
Rapid City, SD vs Yankton, SD

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Highlights

On average, there are 209 sunny days per year in Yankton. Rapid City averages 226 sunny days per year. The US average is 205 sunny days.

Yankton, South Dakota gets 27.8 inches of rain, on average, per year. Rapid City, South Dakota gets 18.2 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Yankton averages 35 inches of snow per year. Rapid City averages 38 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Yankton, South Dakota
Summer High: the July high is around 85.7 degrees
Winter Low: the January low is 8.9
Rain: averages 27.8 inches of rain a year
Snow: averages 35 inches of snow a year

Rapid City, South Dakota
Summer High: the July high is around 85.3 degrees
Winter Low: the January low is 14.2
Rain: averages 18.2 inches of rain a year
Snow: averages 38 inches of snow a year

BestPlaces Comfort Index

Yankton

The annual BestPlaces Comfort Index for Yankton is 6.9 (10=best), which means it is more comfortable than most places in South Dakota.

6.9 / 10

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

Rapid City

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

7 / 10

August, July and June are the most pleasant months in Rapid City, while February and January are the least comfortable months.

Average Monthly High / Low (°F)

Month	Rapid City, SD	Yankton, SD
January	38° / 14°	30° / 9°
February	39° / 16°	35° / 13°
March	47° / 23°	46° / 23°
April	57° / 32°	60° / 35°
May	67° / 43°	71° / 47°
June	76° / 52°	81° / 57°
July	85° / 59°	86° / 62°
August	85° / 58°	84° / 60°
September	74° / 47°	76° / 50°
October	60° / 35°	62° / 37°
November	47° / 24°	45° / 24°
December	37° / 15°	32° / 12°

Hot, Freezing, Rainy, Snowy Days: Rapid City / Yankton

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	29 / 31	4 / 5	5 / 4
February	0 / 0	26 / 27	5 / 5	5 / 4
March	0 / 0	25 / 26	6 / 6	4 / 3
April	0 / 1	15 / 12	9 / 9	3 / 1
May	0 / 1	3 / 1	11 / 11	0 / 0
June	2 / 5	0 / 0	12 / 10	0 / 0
July	9 / 9	0 / 0	9 / 9	0 / 0
August	8 / 7	0 / 0	8 / 8	0 / 0
September	2 / 2	1 / 1	6 / 8	0 / 0
October	0 / 0	10 / 9	7 / 7	1 / 1
November	0 / 0	23 / 24	4 / 6	3 / 2
December	0 / 0	29 / 31	4 / 5	4 / 4

July is the hottest month for Rapid City with an average high temperature of 85.3°, which ranks it as about average compared to other places in South Dakota. In Rapid City, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Rapid City are June, September and August.

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

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Yankton with an average of 8.9°. This is warmer than most places in South Dakota.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Yankton, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Yankton, there are 159.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

In Yankton, there are 20.6 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 Rapid City with 3.8 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 38% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 18.2 inches in Rapid City means that it is drier than most places in South Dakota.

June is the wettest month in Yankton with 4.1 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 37% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 27.8 inches in Yankton means that it is one of the wettest places in South Dakota.

June is the rainiest month in Rapid City with 11.8 days of rain, and November is the driest month with only 4.0 rainy days. There are 85.4 rainy days annually in Rapid City, which is rainier than most places in South Dakota. The rainiest season is Autumn when it rains 34% of the time and the driest is Spring with only a 15% chance of a rainy day.

May is the rainiest month in Yankton with 10.6 days of rain, and January is the driest month with only 4.6 rainy days. There are 86.6 rainy days annually in Yankton, which is rainier than most places in South Dakota. The rainiest season is Autumn when it rains 30% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

An annual snowfall of 35.0 inches in Yankton means that it is less snowy than most places in South Dakota.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

February is the snowiest month in Yankton with 6.7 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 Rapid 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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Reviews for Yankton 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:
Rapid City, SD vs Yankton, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rapid City / Yankton

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Yankton with an average of 8.9°. This is warmer than most places in South Dakota.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Yankton, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

In Yankton, there are 20.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

An annual snowfall of 35.0 inches in Yankton means that it is less snowy than most places in South Dakota.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

February is the snowiest month in Yankton with 6.7 inches of snow, and 7 months of the year have significant snowfall.

DID YOU KNOW?

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2025 Compare Climate & Weather:Rapid City, SD vs Yankton, SD

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Rapid City / Yankton

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.January has the coldest nighttime temperatures for Yankton with an average of 8.9°. This is warmer than most places in South Dakota.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.In Yankton, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Rapid City, there are 159.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.In Yankton, there are 159.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.In Yankton, there are 20.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.An annual snowfall of 35.0 inches in Yankton means that it is less snowy than most places in South Dakota.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.February is the snowiest month in Yankton with 6.7 inches of snow, and 7 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Rapid City 2 Reviews

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Zips In Rapid City, South Dakota

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2025 Compare Climate & Weather:
Rapid City, SD vs Yankton, SD

January has the coldest nighttime temperatures for Rapid City with an average of 14.2°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Yankton with an average of 8.9°. This is warmer than most places in South Dakota.

In Rapid City, there are 22.5 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

In Yankton, there are 24.2 days annually when the high temperature is over 90°, which is hotter than most places in South Dakota.

In Rapid City, there are 14.9 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

In Yankton, there are 20.6 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

An annual snowfall of 38.0 inches in Rapid City means that it is about average compared to other places in South Dakota.

An annual snowfall of 35.0 inches in Yankton means that it is less snowy than most places in South Dakota.

March is the snowiest month in Rapid City with 8.6 inches of snow, and 8 months of the year have significant snowfall.

February is the snowiest month in Yankton with 6.7 inches of snow, and 7 months of the year have significant snowfall.