Climate and monthly weather forecast
Millstadt, IL

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Weather in January

January, like December, in Millstadt, Illinois, is an icy winter month, with an average temperature varying between 25°F (-3.9°C) and 37.9°F (3.3°C). The lowest temperatures are recorded in January, with averages reaching a high of 37.9°F (3.3°C) and a low of 25°F (-3.9°C). Weather in January »

Weather in February

February, the last month of the winter in Millstadt, is also a wintry month, with an average temperature fluctuating between 28°F (-2.2°C) and 42.4°F (5.8°C). At the onset of February, Millstadt records an average high-temperature of a still icy 42.4°F (5.8°C), showing little deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Millstadt, is a fresh month, with an average temperature fluctuating between 54.5°F (12.5°C) and 37.9°F (3.3°C). March's arrival coincides with a temperature rise, moving from February's wintry 42.4°F (5.8°C) to a cool 54.5°F (12.5°C). Weather in March »

Weather in April

April in Millstadt, Illinois, is a refreshing spring month, with an average temperature varying between 47.8°F (8.8°C) and 65.7°F (18.7°C). The onset of April brings a rise in the average high-temperature, elevating from a cool 54.5°F (12.5°C) in March to a comfortable 65.7°F (18.7°C). Weather in April »

Weather in May

May, the last month of the spring in Millstadt, is a moderately hot month, with an average temperature fluctuating between 74.8°F (23.8°C) and 57.9°F (14.4°C). Millstadt's weather shows a temperature rise with the arrival of May, moving from an enjoyable 65.7°F (18.7°C) in April to a moderately hot 74.8°F (23.8°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Millstadt, Illinois, with temperature in the range of an average high of 83.8°F (28.8°C) and an average low of 66.7°F (19.3°C). With the beginning of June, Millstadt's average high-temperature sees an increase, transitioning from a moderately hot 74.8°F (23.8°C) in May to a still warm 83.8°F (28.8°C). Weather in June »

Weather in July

July is a tropical summer month in Millstadt, Illinois, with an average temperature varying between 68.7°F (20.4°C) and 86.5°F (30.3°C). The month of July, characterized by an average high of 86.5°F (30.3°C) and a low of 68.7°F (20.4°C), is recognized as the warmest. The heat index for July is calculated to be a very hot 100.4°F (38°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Millstadt, Illinois, with an average temperature varying between 84.9°F (29.4°C) and 66.6°F (19.2°C). The transition from July to August brings an average high-temperature of a warm 84.9°F (29.4°C), barely different from July's 86.5°F (30.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Millstadt, Illinois, with an average temperature fluctuating between 79.2°F (26.2°C) and 60.4°F (15.8°C). With the onset of September, the average high-temperature subtly recedes from August's moderately hot 84.9°F (29.4°C) to a still warm 79.2°F (26.2°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Millstadt, Illinois, with an average temperature ranging between max 66.6°F (19.2°C) and min 49.1°F (9.5°C). Millstadt's October weather features a mild decline in high-temperatures, reducing from a warm 79.2°F (26.2°C) in September to an enjoyable 66.6°F (19.2°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Millstadt, Illinois, with an average temperature fluctuating between 37.9°F (3.3°C) and 53.6°F (12°C). A shift in the average high-temperature occurs in November, reducing from a comfortable 66.6°F (19.2°C) in October to a fresh 53.6°F (12°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Millstadt, Illinois, with an average temperature ranging between min 30.7°F (-0.7°C) and max 43.2°F (6.2°C). The arrival of December corresponds with a temperature reduction, down from November's cool 53.6°F (12°C) to a chilly 43.2°F (6.2°C). Weather in December »
Updated: Jun 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, recording an average high temperature of 37.9°F (3.3°C) and a low temperature of 25°F (-3.9°C), is Millstadt's coldest month.

How many days does it rain in Millstadt?

Throughout the year, there are 133.3 rainfall days, and 23.03" (585mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through March, November and December.

How many days does it snow?

Throughout the year, there are 18.5 snowfall days, and 5.04" (128mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 4.6h of sunshine, January has the least sunshine of the year.

What are the months with the lowest UV index?

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.

What is the driest month in Millstadt?

The month with the least rainfall is February, when the rain falls for 7.3 days and typically collects 1.1" (28mm) of precipitation.

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 5.4 days and typically aggregates up to 1.5" (38mm) of snow.

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.

When it does not snow?

In Millstadt, snow does not fall in April through October.

What is the most humid month in Millstadt?

The most humid month is May, with an average relative humidity of 79%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 15.1 days and typically aggregates up to 2.95" (75mm) of precipitation.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When are the longest days?

June has the longest days of the year, with an average of 14h and 48min of daylight.

What is the month with the most sunshine?

June and July, with an average of 10.4h of sunshine, are months with the most sunshine.

What time of the year is the hottest?

In Millstadt, the peak average temperatures are observed in July, with a high of 86.5°F (30.3°C) and a low of 68.7°F (20.4°C).

What is the least humid month?

The least humid month is October, with an average relative humidity of 71%.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

Average temperature
Millstadt, IL

Average temperature - Millstadt, IL

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure
Millstadt, IL

Average pressure - Millstadt, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Millstadt, IL

Average wind speed - Millstadt, IL

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity
Millstadt, IL

Average humidity - Millstadt, IL

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Millstadt, IL

Average rainfall - Millstadt, IL

The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is February (1.1").

Average rainfall days
Millstadt, IL

Average rainfall days - Millstadt, IL

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (6 days).

Average snowfall
Millstadt, IL

Average snowfall - Millstadt, IL

The month with the highest snowfall is February (1.5").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days
Millstadt, IL

Average snowfall days - Millstadt, IL

The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Millstadt, IL

Average daylight / Average sunshine - Millstadt, IL

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days
Millstadt, IL

Average sunshine days - Millstadt, IL

The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is July (12.1 days).

Average UV index
Millstadt, IL

Average UV index - Millstadt, IL

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average visibility
Millstadt, IL

Average visibility - Millstadt, 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).

Millstadt, Illinois, USA

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