Downers Grove
Illinois, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Downers Grove, IL

January, the same as December, is another cold winter month in Downers Grove, Illinois, with temperature in the range of an average high of 32°F (0°C) and an average low of 14°F (-10°C). With an average high-temperature of 32°F (0°C) and an average low-temperature of 14°F (-10°C), January is the coldest month. Weather in January »
February, the last month of the winter, in Downers Grove, is another cold month, with average temperature fluctuating between 19°F (-7.2°C) and 37.9°F (3.3°C). In Downers Grove, Illinois, the average high-temperature slightly increases, from 32°F (0°C) in January, to a still wintry 37.9°F (3.3°C). Weather in February »

The first month of the spring, March, is a fresh month in Downers Grove, Illinois, with average temperature varying between 28°F (-2.2°C) and 50°F (10°C). In March, the average high-temperature increases, from a cold 37.9°F (3.3°C) in February, to a cool 50°F (10°C). Weather in March »

April in Downers Grove, Illinois, is a comfortable spring month, with average temperature varying between 37.9°F (3.3°C) and 63°F (17.2°C). In Downers Grove, the average high-temperature increases, from a fresh 50°F (10°C) in March, to an enjoyable 63°F (17.2°C). Weather in April »

The last month of the spring, May, is a warm month in Downers Grove, Illinois, with average temperature varying between 48°F (8.9°C) and 75°F (23.9°C). In May, the average high-temperature increases, from a comfortable 63°F (17.2°C) in April, to a moderately hot 75°F (23.9°C). Weather in May »

The first month of the summer, June, is still a warm month in Downers Grove, Illinois, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 84°F (28.9°C). In Downers Grove, the average high-temperature in June rises, from 75°F (23.9°C) in May, to a still moderately hot 84°F (28.9°C). Weather in June »

July is a tropical summer month in Downers Grove, Illinois, with average temperature fluctuating between 87.1°F (30.6°C) and 63°F (17.2°C). With an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month. Weather in July »

The last month of the summer, August, is another warm month in Downers Grove, Illinois, with average temperature varying between 84.9°F (29.4°C) and 61°F (16.1°C). In Downers Grove, the average high-temperature is almost the same as in July - a warm 84.9°F (29.4°C). Weather in August »

September, the first month of the autumn, in Downers Grove, is still a warm month, with average temperature ranging between max 78.1°F (25.6°C) and min 53.1°F (11.7°C). In September, the average high-temperature slightly decreases, from 84.9°F (29.4°C) in August, to a still moderately hot 78.1°F (25.6°C). Weather in September »

October, like September, in Downers Grove, Illinois, is another comfortable autumn month, with average temperature varying between 42.1°F (5.6°C) and 66.9°F (19.4°C). In October, the average high-temperature decreases, from a moderately hot 78.1°F (25.6°C) in September, to an enjoyable 66.9°F (19.4°C). Weather in October »

November, the last month of the autumn, in Downers Grove, is also a fresh month, with temperature in the range of an average low of 32°F (0°C) and an average high of 50°F (10°C). In November, the average high-temperature plummets, from an enjoyable 66.9°F (19.4°C) in October, to a cool 50°F (10°C). Weather in November »

The first month of the winter, December, is still a cold month in Downers Grove, Illinois, with average temperature ranging between max 37°F (2.8°C) and min 19.9°F (-6.7°C). In Downers Grove, the average high-temperature in December drops, from a fresh 50°F (10°C) in November, to a cold 37°F (2.8°C). Weather in December »

What is the coldest month in Downers Grove?

The coldest month in Downers Grove is January, with an average high-temperature of 32°F (0°C) and an average low-temperature of 14°F (-10°C).

How much does it rain in Downers Grove?

During the entire year, Downers Grove aggregates up to 37.9" (963.6mm) of precipitation.

What is the driest month in Downers Grove?

February is the month with the least rainfall, with 1.6" (39.6mm) of accumulated precipitation.

When are the longest days in Downers Grove?

With an average of 15.2h of daylight, June has the longest days of the year.

What is the warmest month in Downers Grove?

With an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 63°F (17.2°C), July is the warmest month in Downers Grove.

What is the rainiest month in Downers Grove?

The month with the most rainfall in Downers Grove, Illinois, is August when 4.6" (116.8mm) of precipitation is typically aggregated.

What is the month with the shortest days in Downers Grove?

The month with the shortest days is December, with an average of 9.2h of daylight.
Average rainfall - Downers Grove, IL
Average daylight - Downers Grove, IL

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).