Bluffs, IL Climate

Bluffs, IL has a humid continental climate, experiencing warm to hot summers and cold to very cold winters. The area experiences an average of 38 inches of precipitation annually, with rainfall spread throughout the year. Summer temperatures can reach highs in the upper 80s F (31 C), while winter temperatures can drop as low as 0 F (-18 C). Snowfall averages around 18 inches per year, mainly during winter months. Bluffs is known for its changing seasons and severe weather, including strong thunderstorms and occasional tornadoes.

Bluffs, Illinois gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Bluffs averages 19 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Bluffs. The US average is 205 sunny days.

Bluffs gets some kind of precipitation, on average, 108 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 87 degrees
Winter Low: the January low is 18
Rain: averages 40 inches of rain a year
Snow: averages 19 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Bluffs is 7.1 (10=best), which means it is more comfortable than most places in Illinois.

8.2 Summer - 5.2 Winter

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

Climate	Bluffs, Illinois	United States
	Unlock	38.1 in.
	18.9 in.	Unlock
	Unlock	106.2 days
	200 days	Unlock
	86.8°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	469 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for Bluffs with an average high temperature of 86.8°, which ranks it as warmer than most places in Illinois. In Bluffs, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Bluffs are September, May and June.

In Bluffs, there are 24.0 days annually when the high temperature is over 90°, which is hotter than most places in Illinois.

January has the coldest nighttime temperatures for Bluffs with an average of 17.8°. This is about average compared to other places in Illinois.

In Bluffs, there are 119.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Illinois.

In Bluffs, there are 4.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Illinois.

The humidity can be uncomfortably heavy or close in Bluffs during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Bluffs.

June is the wettest month in Bluffs with 4.5 inches of rain, and the driest month is February with 1.9 inches. The wettest season is Autumn with 30% of yearly precipitation and 16% occurs in Spring, which is the driest season. The annual rainfall of 39.7 inches in Bluffs means that it is wetter than most places in Illinois.

May is the rainiest month in Bluffs with 11.7 days of rain, and February is the driest month with only 7.1 rainy days. There are 107.7 rainy days annually in Bluffs, which is about average compared to other places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 21% chance of a rainy day.

An annual snowfall of 18.9 inches in Bluffs means that it is about average compared to other places in Illinois. December is the snowiest month in Bluffs with 5.5 inches of snow, and 5 months of the year have significant snowfall.

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