2025 Compare Climate & Weather:
Hill City, SD vs Geneva, IL

Highlights

On average, there are 188 sunny days per year in Geneva. Hill City averages 228 sunny days per year. The US average is 205 sunny days.

Geneva, Illinois gets 37.7 inches of rain, on average, per year. Hill City, South Dakota gets 20.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Geneva averages 30 inches of snow per year. Hill City averages 55.4 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Geneva, Illinois
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 14.7
Rain: averages 37.7 inches of rain a year
Snow: averages 30 inches of snow a year

Hill City, South Dakota
Summer High: the July high is around 80.3 degrees
Winter Low: the January low is 15.9
Rain: averages 20.8 inches of rain a year
Snow: averages 55.4 inches of snow a year

BestPlaces Comfort Index

The annual BestPlaces Comfort Index for Geneva is 6.9 (10=best), which means it is less comfortable than most places in Illinois.

The annual BestPlaces Comfort Index for Hill City is 6.7 (10=best), which means it is less comfortable than most places in South Dakota.

Today's Weather - Hill City, SD

50°F

Today's Weather - Geneva, IL

50°F

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Hill City / Geneva

July is the hottest month for Hill City with an average high temperature of 80.3°, which ranks it as one of the coolest places in South Dakota. In Hill City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Hill City are August, July and June.

July is the hottest month for Geneva with an average high temperature of 84.2°, which ranks it as cooler than most places in Illinois. In Geneva, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Geneva are June, September and August.

December has the coldest nighttime temperatures for Hill City with an average of 15.1°. This is one of the warmest places in South Dakota.

January has the coldest nighttime temperatures for Geneva with an average of 14.7°. This is colder than most places in Illinois.

In Hill City, there are 7.0 days annually when the high temperature is over 90°, which is one of the coolest places in South Dakota.

In Geneva, there are 11.9 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

In Hill City, there are 172.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.

In Geneva, there are 130.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Hill City, there are 13.4 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in South Dakota.

In Geneva, there are 9.1 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

May is the wettest month in Hill City with 3.9 inches of rain, and the driest month is January with 0.3 inches. The wettest season is Autumn with 40% of yearly precipitation and 6% occurs in Spring, which is the driest season. The annual rainfall of 20.8 inches in Hill City means that it is drier than most places in South Dakota.


August is the wettest month in Geneva with 4.4 inches of rain, and the driest month is January with 1.6 inches. The wettest season is Autumn with 33% of yearly precipitation and 14% occurs in Spring, which is the driest season. The annual rainfall of 37.7 inches in Geneva means that it is drier than most places in Illinois.

May is the rainiest month in Hill City with 12.6 days of rain, and January is the driest month with only 4.0 rainy days. There are 93.4 rainy days annually in Hill City, which is one of the rainiest places in South Dakota. The rainiest season is Autumn when it rains 36% of the time and the driest is Spring with only a 14% chance of a rainy day.

May is the rainiest month in Geneva with 12.2 days of rain, and February is the driest month with only 7.7 rainy days. There are 119.5 rainy days annually in Geneva, which is rainier than most places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 23% chance of a rainy day.

An annual snowfall of 55.4 inches in Hill City means that it is one of the snowiest places in South Dakota.

An annual snowfall of 30.0 inches in Geneva means that it is snowier than most places in Illinois.

April is the snowiest month in Hill City with 11.7 inches of snow, and 9 months of the year have significant snowfall.

January is the snowiest month in Geneva with 9.6 inches of snow, and 6 months of the year have significant snowfall.