Lockport, IL Climate

Lockport, IL has a humid continental climate with hot summers and cold winters. In the summer, temperatures typically reach highs in the mid-80s Fahrenheit while winter temperatures can dip into the single digits. The city receives an average of 33 inches of precipitation annually, with most of it coming from rain but snowfall can occur during the winter months as well. Lockport also experiences four distinct seasons which makes it a great place to live or visit year-round.

Lockport, Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Lockport averages 31 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 192 sunny days per year in Lockport. The US average is 205 sunny days.

Lockport gets some kind of precipitation, on average, 125 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 84 degrees
Winter Low: the January low is 16
Rain: averages 39 inches of rain a year
Snow: averages 31 inches of snow a year

Bestplaces Comfort Index

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

8.9 Summer - 4.5 Winter

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

Climate	Lockport, Illinois	United States
	39.0 in.	38.1 in.
	30.5 in.	27.8 in.
	124.5 days	106.2 days
	192 days	205 days
	84.0°	85.8°
	15.8°	21.7°
	6.9	7
	3.7	4.3
	594 ft.	2443 ft.

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 Lockport with an average high temperature of 84.0°, which ranks it as cooler than most places in Illinois. In Lockport, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lockport are September, June and August.

In Lockport, there are 10.6 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

January has the coldest nighttime temperatures for Lockport with an average of 15.8°. This is colder than most places in Illinois.

In Lockport, there are 127.2 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In Lockport, there are 6.7 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Illinois.

The humidity is usually comfortable in Lockport but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

July is the wettest month in Lockport with 4.6 inches of rain, and the driest month is January with 1.8 inches. The wettest season is Autumn with 33% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 39.0 inches in Lockport means that it is about average compared to other places in Illinois.

May is the rainiest month in Lockport with 12.4 days of rain, and September is the driest month with only 7.8 rainy days. There are 124.5 rainy days annually in Lockport, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 30.5 inches in Lockport means that it is snowier than most places in Illinois. January is the snowiest month in Lockport with 10.0 inches of snow, and 5 months of the year have significant snowfall.