Climate and monthly weather forecast
Manchester, IL

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Weather in January

January, the same as December, is a wintry winter month in Manchester, Illinois, with an average temperature ranging between max 34.3°F (1.3°C) and min 21.9°F (-5.6°C). Manchester's coldest temperatures are experienced in January, with average high temperatures of 34.3°F (1.3°C) and lows of 21.9°F (-5.6°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Manchester, Illinois, with an average temperature varying between 39.4°F (4.1°C) and 25.3°F (-3.7°C). Manchester observes a minor difference in average high-temperatures between January's 34.3°F (1.3°C) and February's 39.4°F (4.1°C). Weather in February »

Weather in March

March, the first month of the spring in Manchester, is a cool month, with an average temperature fluctuating between 52.2°F (11.2°C) and 36.1°F (2.3°C). The shift into March is marked by a rise in the average high-temperature, moving from February's cold 39.4°F (4.1°C) to a cool 52.2°F (11.2°C). Weather in March »

Weather in April

April in Manchester, Illinois, is an enjoyable spring month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 63.7°F (17.6°C). April brings a rise in Manchester's average high-temperature, moving from a fresh 52.2°F (11.2°C) in March to a refreshing 63.7°F (17.6°C). Weather in April »

Weather in May

May, the last month of the spring in Manchester, is a pleasant month, with an average temperature ranging between max 73.2°F (22.9°C) and min 56.1°F (13.4°C). The shift into May brings an increase in the average high-temperature, moving from a refreshing 63.7°F (17.6°C) in April to an agreeable 73.2°F (22.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Manchester, Illinois, with an average temperature ranging between max 82°F (27.8°C) and min 64.6°F (18.1°C). As Manchester welcomes June, the average high-temperature displays a subtle shift, adjusting from an agreeable 73.2°F (22.9°C) in May to a moderately hot 82°F (27.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Manchester, Illinois, with an average temperature ranging between min 67.1°F (19.5°C) and max 84.2°F (29°C). July registers as the month with the highest average temperatures, reaching 84.2°F (29°C) at its peak and 67.1°F (19.5°C) at the lowest. The heat index in July is estimated at a very hot 95°F (35°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Manchester, Illinois, with an average temperature varying between 83.5°F (28.6°C) and 65.5°F (18.6°C). Manchester notes an average high-temperature of a still moderately hot 83.5°F (28.6°C) in August, displaying minor variation from July. Weather in August »

Weather in September

September, the first month of the autumn in Manchester, is still a warm month, with an average temperature varying between 78.1°F (25.6°C) and 59.2°F (15.1°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from 83.5°F (28.6°C) in August to a still moderately hot 78.1°F (25.6°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Manchester, Illinois, with an average temperature fluctuating between 64.4°F (18°C) and 47.8°F (8.8°C). Manchester's weather changes with the onset of October, slightly falling from a moderately hot 78.1°F (25.6°C) in September to a comfortable 64.4°F (18°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Manchester, Illinois, with an average temperature varying between 36.5°F (2.5°C) and 51.6°F (10.9°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 64.4°F (18°C) to a cool 51.6°F (10.9°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Manchester, Illinois, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 40.1°F (4.5°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's fresh 51.6°F (10.9°C) to a cold 40.1°F (4.5°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Manchester?

Manchester's coldest temperatures are experienced in January, with average high temperatures of 34.3°F (1.3°C) and lows of 21.9°F (-5.6°C).

What is the driest month in Manchester?

The months with the least rainfall in Manchester, Illinois, are January and November Rain falls for 5.5 days and accumulates 0.83" (21mm) of rain.

How many days does it rain in Manchester?

In Manchester, Illinois, during the entire year, the rain falls for 127.3 days and collects up to 17.24" (438mm) of precipitation.

When does it snow in Manchester?

January through April, November and December are months with snowfall.

How many days does it snow in Manchester?

Throughout the year, there are 22.5 snowfall days, and 5.08" (129mm) of snow is accumulated.

What is the month with the least sunshine in Manchester?

The month with the least sunshine in Manchester is January, with an average of 4.4h of sunshine.

What is the month with the lowest UV index in Manchester?

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

When does it snow the most in Manchester?

The month with the most snowfall in Manchester, Illinois, is February, when snow falls for 6.4 days and typically aggregates up to 1.69" (43mm) of snow.

When is Daylight Saving Time (DST) in Manchester?

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 Manchester?

May through October are months without snowfall in Manchester.

What is the rainiest month in Manchester?

The month with the most rainfall in Manchester, Illinois, is June, when the rain falls for 13.6 days and typically aggregates up to 2.44" (62mm) of precipitation.

When are the longest days in Manchester?

June has the longest days of the year, with an average of 14h and 54min of daylight.

What month has the most sunshine in Manchester?

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

What are the months with the highest UV index in Manchester?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Manchester, Illinois.

What is the warmest month in Manchester?

July is the warmest month of the year in Manchester, Illinois, registering average temperatures as high as 84.2°F (29°C) and as low as 67.1°F (19.5°C).

What is the most humid month in Manchester?

The most humid month is July, with an average relative humidity of 81%.

What is the least humid month in Manchester?

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

What is the month with the shortest days in Manchester?

December has the shortest days of the year in Manchester, with an average of 9h and 24min of daylight.

Average temperature
Manchester, IL

Average temperature - Manchester, IL

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).

Average pressure
Manchester, IL

Average pressure - Manchester, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Manchester, IL

Average wind speed - Manchester, IL

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).

Average humidity
Manchester, IL

Average humidity - Manchester, IL

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Manchester, IL

Average rainfall - Manchester, IL

The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").

Average rainfall days
Manchester, IL

Average rainfall days - Manchester, IL

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).

Average snowfall
Manchester, IL

Average snowfall - Manchester, IL

The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Manchester, IL

Average snowfall days - Manchester, IL

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Manchester, IL

Average daylight / Average sunshine - Manchester, IL

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days
Manchester, IL

Average sunshine days - Manchester, IL

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).

Average UV index
Manchester, IL

Average UV index - Manchester, IL

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

Average visibility
Manchester, IL

Average visibility - Manchester, 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).

Manchester, Illinois, USA

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