2025 Compare Climate & Weather:
San Luis Obispo, CA vs Sioux Falls, SD

Highlights

On average, there are 211 sunny days per year in Sioux Falls. San Luis Obispo averages 287 sunny days per year. The US average is 205 sunny days.

Sioux Falls, South Dakota gets 26.7 inches of rain, on average, per year. San Luis Obispo, California gets 20 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Sioux Falls averages 37.6 inches of snow per year. San Luis Obispo averages 0 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Sioux Falls, South Dakota
Summer High: the July high is around 83.5 degrees
Winter Low: the January low is 6.3
Rain: averages 26.7 inches of rain a year
Snow: averages 37.6 inches of snow a year

San Luis Obispo, California
Summer High: the July high is around 73.7 degrees
Winter Low: the January low is 42.8
Rain: averages 20 inches of rain a year
Snow: averages 0 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Sioux Falls is 6.8 (10=best), which means it is about average compared to other places in South Dakota.

The annual BestPlaces Comfort Index for San Luis Obispo is 8.8 (10=best), which means it is more comfortable than most places in California.

Today's Weather - San Luis Obispo, CA

57°F

Today's Weather - Sioux Falls, SD

55°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: San Luis Obispo / Sioux Falls

September is the hottest month for San Luis Obispo with an average high temperature of 75.3°, which ranks it as one of the coolest places in California. In San Luis Obispo, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for San Luis Obispo are September, August and July.

July is the hottest month for Sioux Falls with an average high temperature of 83.5°, which ranks it as cooler than most places in South Dakota. In Sioux Falls, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sioux Falls are June, August and September.

December has the coldest nighttime temperatures for San Luis Obispo with an average of 42.2°. This is warmer than most places in California.

January has the coldest nighttime temperatures for Sioux Falls with an average of 6.3°. This is about average compared to other places in South Dakota.

In San Luis Obispo, there are 6.3 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Sioux Falls, there are 11.2 days annually when the high temperature is over 90°, which is cooler than most places in South Dakota.

In San Luis Obispo, there are 3.5 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in California.

In Sioux Falls, there are 161.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In San Luis Obispo, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

In Sioux Falls, there are 26.3 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in South Dakota.

February is the wettest month in San Luis Obispo with 4.2 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 59% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 20.0 inches in San Luis Obispo means that it is about average compared to other places in California.


June is the wettest month in Sioux Falls 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 26.7 inches in Sioux Falls means that it is wetter than most places in South Dakota.

February is the rainiest month in San Luis Obispo with 9.2 days of rain, and July is the driest month with only 0.4 rainy days. There are 50.5 rainy days annually in San Luis Obispo, which is about average compared to other places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 3% chance of a rainy day.

May is the rainiest month in Sioux Falls with 10.8 days of rain, and February is the driest month with only 5.1 rainy days. There are 90.1 rainy days annually in Sioux Falls, which is one of the rainiest 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.

There is rarely any recorded snowfall in San Luis Obispo, ranking it as one of the least snowy places in California.

An annual snowfall of 37.6 inches in Sioux Falls means that it is about average compared to other places in South Dakota.

Any measurable snowfall is a rare occurance in San Luis Obispo.

December is the snowiest month in Sioux Falls with 7.0 inches of snow, and 7 months of the year have significant snowfall.