2025 Compare Climate & Weather:
Grants Pass, OR vs Rapid City, SD

Highlights

On average, there are 226 sunny days per year in Rapid City. Grants Pass averages 196 sunny days per year. The US average is 205 sunny days.

Rapid City, South Dakota gets 18.2 inches of rain, on average, per year. Grants Pass, Oregon gets 29.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Rapid City averages 38 inches of snow per year. Grants Pass averages 2.6 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

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

Grants Pass, Oregon
Summer High: the July high is around 90.7 degrees
Winter Low: the January low is 33.9
Rain: averages 29.8 inches of rain a year
Snow: averages 2.6 inches of snow a year

BestPlaces Comfort Index

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.

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

Today's Weather - Grants Pass, OR

62°F

Today's Weather - Rapid City, SD

87°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Grants Pass / Rapid City

August is the hottest month for Grants Pass with an average high temperature of 90.9°, which ranks it as one of the hottest places in Oregon. In Grants Pass, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grants Pass are June, May and September.

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.

January has the coldest nighttime temperatures for Grants Pass with an average of 33.9°. This is warmer than most places in Oregon.

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.

In Grants Pass, there are 54.7 days annually when the high temperature is over 90°, which is one of the hottest places in Oregon.

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 Grants Pass, there are 53.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Oregon.

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 Grants Pass, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.

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.

December is the wettest month in Grants Pass with 6.0 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 49% of yearly precipitation and 4% occurs in Autumn, which is the driest season. The annual rainfall of 29.8 inches in Grants Pass means that it is drier than most places in Oregon.


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.

December is the rainiest month in Grants Pass with 15.0 days of rain, and July is the driest month with only 1.7 rainy days. There are 104.4 rainy days annually in Grants Pass, which is less rainy than most places in Oregon. The rainiest season is Spring when it rains 40% of the time and the driest is Autumn with only a 7% chance of a rainy day.

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.

An annual snowfall of 2.6 inches in Grants Pass means that it is less snowy than most places in Oregon.

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

January is the snowiest month in Grants Pass with 0.9 inches of snow, and 3 months of the year have significant snowfall.

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