Freeport
Illinois, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Freeport, IL

January, the same as December, in Freeport, Illinois, is a freezing cold winter month, with average temperature ranging between min 9°F (-12.8°C) and max 25°F (-3.9°C). January is the coldest month, with an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 9°F (-12.8°C). Weather in January »
February, the last month of the winter, in Freeport, is also a subzero cold month, with average temperature fluctuating between 30°F (-1.1°C) and 14°F (-10°C). In February, the average high-temperature is relatively the same as in January - a still freezing cold 30°F (-1.1°C). Weather in February »

The first month of the spring, March, is a chilly month in Freeport, Illinois, with average temperature fluctuating between 25°F (-3.9°C) and 43°F (6.1°C). In March, the average high-temperature rises, from a freezing cold 30°F (-1.1°C) in February, to a frosty 43°F (6.1°C). Weather in March »

April in Freeport, Illinois, is a mild spring month, with average temperature fluctuating between 57°F (13.9°C) and 36°F (2.2°C). In April, the average high-temperature increases, from a frosty 43°F (6.1°C) in March, to a moderate 57°F (13.9°C). Weather in April »

May, the last month of the spring, in Freeport, is a pleasant month, with temperature in the range of an average high of 70°F (21.1°C) and an average low of 46°F (7.8°C). In Freeport, the average high-temperature rises, from a moderate 57°F (13.9°C) in April, to an agreeable 70°F (21.1°C). Weather in May »

June, the first month of the summer, in Freeport, is a moderately hot month, with average temperature fluctuating between 79°F (26.1°C) and 57°F (13.9°C). In Freeport, the average high-temperature rises, from a pleasant 70°F (21.1°C) in May, to a warm 79°F (26.1°C). Weather in June »

July, the same as June, is another warm summer month in Freeport, Illinois, with average temperature fluctuating between 82°F (27.8°C) and 63°F (17.2°C). With an average high-temperature of 82°F (27.8°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 Freeport, Illinois, with temperature in the range of an average low of 59°F (15°C) and an average high of 81°F (27.2°C). In August, the average high-temperature is almost the same as in July - a still moderately hot 81°F (27.2°C). Weather in August »

September, the first month of the autumn, in Freeport, is also an agreeable month, with average temperature varying between 50°F (10°C) and 73°F (22.8°C). In Freeport, the average high-temperature in September slightly decreases, from a warm 81°F (27.2°C) in August, to an agreeable 73°F (22.8°C). Weather in September »

October, like September, in Freeport, Illinois, is another enjoyable autumn month, with average temperature varying between 39°F (3.9°C) and 61°F (16.1°C). In Freeport, the average high-temperature in October decreases, from an agreeable 73°F (22.8°C) in September, to an enjoyable 61°F (16.1°C). Weather in October »

The last month of the autumn, November, is another chilly month in Freeport, Illinois, with average temperature ranging between max 45°F (7.2°C) and min 28°F (-2.2°C). In Freeport, the average high-temperature declines considerably, from a comfortable 61°F (16.1°C) in October, to a frosty 45°F (7.2°C). Weather in November »

The first month of the winter, December, is also a subzero cold month in Freeport, Illinois, with average temperature fluctuating between 16°F (-8.9°C) and 30°F (-1.1°C). In Freeport, Illinois, the average high-temperature in December declines considerably, from a chilly 45°F (7.2°C) in November, to a freezing cold 30°F (-1.1°C). Weather in December »

What is the coldest month in Freeport?

With an average high-temperature of 25°F (-3.9°C) and an average low-temperature of 9°F (-12.8°C), January is the coldest month in Freeport, Illinois.

How much does it rain in Freeport?

Throughout the year, in Freeport, Illinois, 34.8" (883.7mm) of rain is accumulated.

What is the driest month in Freeport?

Months with the least rainfall are January and February with 1.3" (33.8mm) of accumulated rain.

What is the rainiest month in Freeport?

The month with the most rainfall is June when 4.5" (113.3mm) of precipitation is typically aggregated.

When are the longest days in Freeport?

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

What is the warmest month in Freeport?

July is the warmest month, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 63°F (17.2°C).

What is the month with the shortest days in Freeport?

The month with the shortest days in Freeport is December, with an average of 9.1h of daylight.
Average rainfall - Freeport, IL
Average daylight - Freeport, IL

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.1h).