Grand Tower, IL Climate


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Grand Tower, IL has a humid continental climate with hot summers and cold winters. The average temperature in the summer is around 75 degrees Fahrenheit, while in the winter it can dip as low as -10 degrees Fahrenheit. The area experiences an average of 44 inches of rain throughout the year, and snowfall can range from 10 to 20 inches annually. Winters tend to be windy, with gusts of up to 25 mph not uncommon. Grand Tower sees plenty of sunshine throughout the year, making it a great destination for those looking to enjoy some outdoor activities in milder seasons.

Grand Tower, Illinois gets 45 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Grand Tower averages 9 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 217 sunny days per year in Grand Tower. The US average is 205 sunny days.

Grand Tower gets some kind of precipitation, on average, 96 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 89 degrees
Winter Low: the January low is 24
Rain: averages 45 inches of rain a year
Snow: averages 9 inches of snow a year


Bestplaces Comfort Index

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

7.2 Summer - 5.8 Winter
September, May and October are the most pleasant months in Grand Tower, while January and December are the least comfortable months.

  ClimateGrand Tower, IllinoisUnited States
  44.6 in.38.1 in.
  9.0 in.27.8 in.
  95.5 days106.2 days
  217 days205 days
  89.2°85.8°
  23.5°21.7°
  7.27
  4.34.3
  361 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 Grand Tower with an average high temperature of 89.2°, which ranks it as one of the hottest places in Illinois. In Grand Tower, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Grand Tower are May, September and October.
In Grand Tower, there are 38.6 days annually when the high temperature is over 90°, which is one of the hottest places in Illinois.
January has the coldest nighttime temperatures for Grand Tower with an average of 23.5°. This is one of the warmest places in Illinois.
In Grand Tower, there are 95.5 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Illinois.
In Grand Tower, there are 1.4 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Illinois.
The humidity can be uncomfortably heavy or close in Grand Tower 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 Grand Tower.
May is the wettest month in Grand Tower with 5.1 inches of rain, and the driest month is January with 2.8 inches. The wettest season is Summer with 30% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 44.6 inches in Grand Tower means that it is one of the wettest places in Illinois.
May is the rainiest month in Grand Tower with 10.3 days of rain, and September is the driest month with only 6.2 rainy days. There are 95.5 rainy days annually in Grand Tower, which is one of the least rainy places in Illinois. The rainiest season is Summer when it rains 31% of the time and the driest is Autumn with only a 22% chance of a rainy day.
An annual snowfall of 9.0 inches in Grand Tower means that it is one of the least snowy places in Illinois. February is the snowiest month in Grand Tower with 2.7 inches of snow, and 4 months of the year have significant snowfall.
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