Climate and monthly weather forecast
Milan, IL

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Weather in January

January, like December, is another subzero cold winter month in Milan, Illinois, with an average temperature fluctuating between 16°F (-8.9°C) and 28.2°F (-2.1°C). With average high temperatures of 28.2°F (-2.1°C) and lows of 16°F (-8.9°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Milan, is an icy month, with an average temperature varying between 19.8°F (-6.8°C) and 32.7°F (0.4°C). The advent of February denotes an average high-temperature of an icy 32.7°F (0.4°C), subtly different from January's 28.2°F (-2.1°C). Weather in February »

Weather in March

March, the first month of the spring in Milan, is a frosty month, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 32°F (0°C). The shift into March is characterized by a rise in the average high-temperature, transitioning from February's icy 32.7°F (0.4°C) to a chilly 46.9°F (8.3°C). Weather in March »

Weather in April

April is a refreshing spring month in Milan, Illinois, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 59°F (15°C). Noticing a change, the average high-temperature during April moves from March's frosty 46.9°F (8.3°C) to a moderate 59°F (15°C). Weather in April »

Weather in May

May, the last month of the spring in Milan, is an agreeable month, with an average temperature varying between 53.4°F (11.9°C) and 70.3°F (21.3°C). With the transition into May, Milan experiences an increase in average high-temperatures, moving up from a mild 59°F (15°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Milan, Illinois, with an average temperature ranging between max 79°F (26.1°C) and min 61.9°F (16.6°C). As May transitions into June, Milan notices a gentle rise in the average high-temperature, transitioning from a pleasant 70.3°F (21.3°C) to a moderately hot 79°F (26.1°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Milan, Illinois, with an average temperature ranging between min 64.9°F (18.3°C) and max 81.7°F (27.6°C). July stands out as Milan's warmest month, with temperatures ranging between an average high of 81.7°F (27.6°C) and a low of 64.9°F (18.3°C). For July, the heat index is evaluated at a hot 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Milan, is another warm month, with an average temperature fluctuating between 80.8°F (27.1°C) and 63°F (17.2°C). With the onset of August, Milan's average high-temperature clocks in at a still moderately hot 80.8°F (27.1°C), showing a minor fluctuation from the previous month. Weather in August »

Weather in September

September, the first month of the autumn in Milan, is also a moderately hot month, with an average temperature ranging between max 75.4°F (24.1°C) and min 56.3°F (13.5°C). As September arrives, Milan's weather displays a minor decrease in high-temperatures, transitioning from August's 80.8°F (27.1°C) to a still moderately hot 75.4°F (24.1°C). Weather in September »

Weather in October

October, like September, in Milan, Illinois, is another enjoyable autumn month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 61.3°F (16.3°C). Arrival of October comes with a reduction in the average high-temperature, falling from a moderately hot 75.4°F (24.1°C) in September to a refreshing 61.3°F (16.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Milan, Illinois, with an average temperature ranging between min 33.3°F (0.7°C) and max 47.1°F (8.4°C). The transition into November involves a decrease in the average high-temperature, falling from a refreshing 61.3°F (16.3°C) in October to a frosty 47.1°F (8.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Milan, Illinois, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 23.9°F (-4.5°C). In December, the average high-temperature goes from a frosty 47.1°F (8.4°C) in November to a wintry 34.7°F (1.5°C). Weather in December »
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January, with average temperatures reaching a high of 28.2°F (-2.1°C) and a low of 16°F (-8.9°C), is the coldest month.

What are the most humid months?

January and July, with an average relative humidity of 83%, are most humid months in Milan.

How much does it rain?

Throughout the year, there are 75.2 rainfall days, and 5.79" (147mm) of precipitation is accumulated.

When does it snow?

Months with snowfall in Milan, Illinois, are January through April, October through December.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 5.5 days and accumulates 1.06" (27mm) of snow.

How many days does it snow?

Throughout the year, there are 18.4 snowfall days, and 2.64" (67mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 3.9h of sunshine, January has the least sunshine of the year.

What is the month with the lowest UV index?

January is the month with the lowest UV index in Milan, with an average maximum UV index of 1.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Milan?

The month with the most rainfall is May, when the rain falls for 10.4 days and typically aggregates up to 0.94" (24mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days in Milan?

The month with the longest days is June, with an average of 15h and 6min of daylight.

When is the highest UV index?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What time of the year is the hottest?

July, having an average high-temperature of 81.7°F (27.6°C) and an average low-temperature of 64.9°F (18.3°C), is the warmest month.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.2h of sunshine.

What is the least humid month?

October is the least humid month in Milan, with an average relative humidity of 71%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 3.2 days and accumulates 0.24" (6mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

Average pressure
Milan, IL

Average pressure - Milan, IL

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
Milan, IL

Average wind speed - Milan, IL

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity
Milan, IL

Average humidity - Milan, IL

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Milan, IL

Average rainfall - Milan, IL

The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is December (0.24").

Average rainfall days
Milan, IL

Average rainfall days - Milan, IL

The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is January (1.8 days).

Average snowfall
Milan, IL

Average snowfall - Milan, IL

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Milan, IL

Average snowfall days - Milan, IL

The month with the highest number of snowfall days is January (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Milan, IL

Average daylight / Average sunshine - Milan, IL

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days
Milan, IL

Average sunshine days - Milan, IL

The month with the most sunshine days is December (25.8 days).
The month with the least sunshine days is June (15.4 days).

Average visibility
Milan, IL

Average visibility - Milan, IL

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Milan, Illinois, USA

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