Climate and monthly weather forecast
Montgomery, IL

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Weather in January

January, like December, is another subzero cold winter month in Montgomery, Illinois, with temperature in the range of an average high of 28.4°F (-2°C) and an average low of 16.7°F (-8.5°C). With average high temperatures of 28.4°F (-2°C) and lows of 16.7°F (-8.5°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Montgomery, Illinois, with temperature in the range of an average low of 19.8°F (-6.8°C) and an average high of 32.5°F (0.3°C). Montgomery experiences a transition to a wintry 32.5°F (0.3°C) in average high-temperatures with the arrival of February, not greatly differing from January's 28.4°F (-2°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Montgomery, Illinois, with an average temperature varying between 45.7°F (7.6°C) and 31.5°F (-0.3°C). In March, the average high-temperature increases from a wintry 32.5°F (0.3°C) in February to a chilly 45.7°F (7.6°C). Weather in March »

Weather in April

April is a moderate spring month in Montgomery, Illinois, with an average temperature varying between 57°F (13.9°C) and 40.8°F (4.9°C). April witnesses an increase in the average high-temperature, moving from a chilly 45.7°F (7.6°C) in March to a refreshing 57°F (13.9°C). Weather in April »

Weather in May

May, the last month of the spring in Montgomery, is an agreeable month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 52.3°F (11.3°C). The start of May brings a rise in the average high-temperature, moving from a moderate 57°F (13.9°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Montgomery, Illinois, with an average temperature fluctuating between 60.8°F (16°C) and 78.4°F (25.8°C). June brings an increase in the average high-temperature, progressing from an agreeable 69.4°F (20.8°C) in May to a warm 78.4°F (25.8°C). Weather in June »

Weather in July

July, like June, in Montgomery, Illinois, is another warm summer month, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 81.1°F (27.3°C). In Montgomery, July is the warmest month, with temperatures averaging a high of 81.1°F (27.3°C) and a low of 64.2°F (17.9°C). In July, the heat index is computed to be a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Montgomery, Illinois, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.4°F (16.9°C). The shift into August records an average high-temperature of a still warm 79.3°F (26.3°C), subtly varied from July's 81.1°F (27.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Montgomery, is also a moderately hot month, with an average temperature varying between 56.3°F (13.5°C) and 74.1°F (23.4°C). The dawn of September sees an average high-temperature of a still warm 74.1°F (23.4°C), subtly contrasting with August's 79.3°F (26.3°C). Weather in September »

Weather in October

October, like September, in Montgomery, Illinois, is another enjoyable autumn month, with an average temperature varying between 60.8°F (16°C) and 45.1°F (7.3°C). Montgomery's weather changes with the onset of October, slightly falling from a warm 74.1°F (23.4°C) in September to an enjoyable 60.8°F (16°C). Weather in October »

Weather in November

November, the last month of the autumn in Montgomery, is another chilly month, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 33.3°F (0.7°C). The onset of November brings a clear temperature shift, with the average high-temperature decreasing from an enjoyable 60.8°F (16°C) in October to a chilly 46°F (7.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Montgomery, Illinois, with an average temperature varying between 34.5°F (1.4°C) and 24.1°F (-4.4°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 46°F (7.8°C) to a cold 34.5°F (1.4°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Montgomery?

The month of January, characterized by an average high of 28.4°F (-2°C) and a low of 16.7°F (-8.5°C), is recognized as the coldest in Montgomery, Illinois.

What are the most humid months in Montgomery?

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

How many days does it rain in Montgomery?

In Montgomery, Illinois, during the entire year, the rain falls for 133.1 days and collects up to 16.93" (430mm) of precipitation.

When does it snow in Montgomery?

Months with snowfall are January through April, October through December.

When does it snow the most in Montgomery?

January is the month with the most snowfall. Snow falls for 10.7 days and accumulates 1.73" (44mm) of snow.

How many days does it snow in Montgomery?

In Montgomery, Illinois, during the entire year, snow falls for 39.5 days and aggregates up to 6.69" (170mm) of snow.

What is the month with the least sunshine in Montgomery?

The month with the least sunshine in Montgomery, Illinois, is January, with an average of 3.8h of sunshine.

What are the months with the lowest UV index in Montgomery?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Montgomery, Illinois.

When is Daylight Saving Time (DST) in Montgomery?

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 Montgomery?

In Montgomery, Illinois, snow does not fall in May through September.

What is the rainiest month in Montgomery?

June is the month with the most rainfall. Rain falls for 14.9 days and accumulates 2.24" (57mm) of precipitation.

When are the longest days in Montgomery?

June has the longest days of the year in Montgomery, Illinois, with an average of 15h and 12min of daylight.

What is the month with the highest UV index in Montgomery?

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

What is the hottest time of year in Montgomery?

Montgomery, Illinois, witnesses the warmest weather in July, with temperatures averaging a high of 81.1°F (27.3°C) and a low of 64.2°F (17.9°C).

What month has the most sunshine in Montgomery?

July has the most sunshine of the year, with an average of 9.8h of sunshine.

What is the least humid month in Montgomery?

The least humid month in Montgomery is October, with an average relative humidity of 74%.

What is the driest month in Montgomery?

The months with the least rainfall in Montgomery, Illinois, are November and December Rain falls for 7.6 days and accumulates 0.75" (19mm) of rain.

What is the month with the shortest days in Montgomery?

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

Average temperature
Montgomery, IL

Average temperature - Montgomery, IL

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.4°F).

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure
Montgomery, IL

Average pressure - Montgomery, IL

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Montgomery, IL

Average wind speed - Montgomery, IL

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity
Montgomery, IL

Average humidity - Montgomery, IL

The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall
Montgomery, IL

Average rainfall - Montgomery, IL

The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").

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Average rainfall days
Montgomery, IL

Average rainfall days - Montgomery, IL

The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall
Montgomery, IL

Average snowfall - Montgomery, IL

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Montgomery, IL

Average snowfall days - Montgomery, IL

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Montgomery, IL

Average daylight / Average sunshine - Montgomery, IL

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

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days
Montgomery, IL

Average sunshine days - Montgomery, IL

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).

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Average visibility
Montgomery, IL

Average visibility - Montgomery, IL

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

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Montgomery, Illinois, USA

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