Dawson, IL Climate

The climate in Dawson, IL is classified as humid continental, which means there are four distinct seasons—spring, summer, fall, and winter. Summers tend to be hot and humid with temperatures regularly reaching into the high 80s (°F), while winters are cold and snowy with the temperature often dipping below freezing. Rainfall is moderate throughout the year but snow can accumulate during winter months due to cold air masses coming from Canada. The average yearly temperature is around 45°F (7°C).

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

Dawson averages 17 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 196 sunny days per year in Dawson. The US average is 205 sunny days.

Dawson gets some kind of precipitation, on average, 103 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 85 degrees
Winter Low: the January low is 18
Rain: averages 38 inches of rain a year
Snow: averages 17 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Dawson is 7.2 (10=best), which means it is one of the most pleasant places in Illinois.

8.4 Summer - 5.3 Winter

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

Climate	Dawson, Illinois	United States
	Unlock	38.1 in.
	17.3 in.	Unlock
	Unlock	106.2 days
	196 days	Unlock
	85.3°	85.8°
	Unlock	21.7°
	7.2	Unlock
	Unlock	4.3
	597 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 Dawson with an average high temperature of 85.3°, which ranks it as about average compared to other places in Illinois. In Dawson, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dawson are September, May and June.

In Dawson, there are 18.3 days annually when the high temperature is over 90°, which is about average compared to other places in Illinois.

January has the coldest nighttime temperatures for Dawson with an average of 18.4°. This is warmer than most places in Illinois.

In Dawson, there are 116.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Illinois.

In Dawson, there are 4.8 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 Dawson 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 Dawson.

May is the wettest month in Dawson with 4.4 inches of rain, and the driest month is January with 1.9 inches. The wettest season is Autumn with 30% of yearly precipitation and 17% occurs in Spring, which is the driest season. The annual rainfall of 38.0 inches in Dawson means that it is drier than most places in Illinois.

May is the rainiest month in Dawson with 10.7 days of rain, and September is the driest month with only 6.8 rainy days. There are 103.2 rainy days annually in Dawson, which is less rainy than most places in Illinois. The rainiest season is Summer when it rains 30% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 17.3 inches in Dawson means that it is less snowy than most places in Illinois. February is the snowiest month in Dawson with 5.1 inches of snow, and 4 months of the year have significant snowfall.

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