Climate and monthly weather forecast
Lake Summerset, IL

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Weather in January

January, the same as December, in Lake Summerset, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 12.7°F (-10.7°C) and an average high of 24.8°F (-4°C). In Lake Summerset, the lowest average temperatures are observed in January, with a high of 24.8°F (-4°C) and a low of 12.7°F (-10.7°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Lake Summerset, Illinois, with an average temperature ranging between max 28.4°F (-2°C) and min 15.6°F (-9.1°C). Lake Summerset records an average high-temperature of a still freezing cold 28.4°F (-2°C) as February arrives, nearly mirroring the previous month's climate. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Lake Summerset, Illinois, with an average temperature ranging between max 43°F (6.1°C) and min 28.2°F (-2.1°C). As March sets, the average high-temperature displays a significant increase, moving up from a subzero cold 28.4°F (-2°C) in February to a chilly 43°F (6.1°C). Weather in March »

Weather in April

April in Lake Summerset, Illinois, is a cool spring month, with an average temperature ranging between min 38.1°F (3.4°C) and max 54.9°F (12.7°C). April indicates a change in the average high-temperature, moving up from a chilly 43°F (6.1°C) in March to a cool 54.9°F (12.7°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Lake Summerset, Illinois, with an average temperature varying between 49.6°F (9.8°C) and 66.7°F (19.3°C). May's arrival signals an increase in average high-temperatures, moving from April's fresh 54.9°F (12.7°C) to a comfortable 66.7°F (19.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Lake Summerset, Illinois, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 75.7°F (24.3°C). June brings a rise in Lake Summerset's average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in May to a warm 75.7°F (24.3°C). Weather in June »

Weather in July

July, like June, in Lake Summerset, Illinois, is another warm summer month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.2°F (16.8°C). The month of July sees the highest average temperatures, reaching 79.3°F (26.3°C) at the peak and 62.2°F (16.8°C) at the low. Weather in July »

Weather in August

August, the last month of the summer in Lake Summerset, is also a moderately hot month, with an average temperature varying between 77.7°F (25.4°C) and 59.9°F (15.5°C). As Lake Summerset steps into August, the average high-temperature is measured at a still warm 77.7°F (25.4°C), displaying minor differences from July's 79.3°F (26.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Lake Summerset, Illinois, with an average temperature fluctuating between 72°F (22.2°C) and 52.9°F (11.6°C). As August transitions into September, Lake Summerset sees a gentle drop in the average high-temperature, transitioning from a moderately hot 77.7°F (25.4°C) to a pleasant 72°F (22.2°C). Weather in September »

Weather in October

October, like September, is another refreshing autumn month in Lake Summerset, Illinois, with an average temperature varying between 58.1°F (14.5°C) and 42.1°F (5.6°C). As September shifts into October, a slight alteration in temperatures is observed, with average highs reducing from a pleasant 72°F (22.2°C) to a refreshing 58.1°F (14.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Lake Summerset, is another chilly month, with temperature in the range of an average low of 30.6°F (-0.8°C) and an average high of 43.7°F (6.5°C). November is marked by a significant decrease, with the average high-temperature retreating from a moderate 58.1°F (14.5°C) in October to a frosty 43.7°F (6.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Lake Summerset, Illinois, with an average temperature fluctuating between 21.4°F (-5.9°C) and 31.5°F (-0.3°C). December shows a mild decline in the average high-temperature, falling from November's chilly 43.7°F (6.5°C) to a freezing cold 31.5°F (-0.3°C). Weather in December »
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Lake Summerset experiences its average lowest temperatures in January, reaching a peak of 24.8°F (-4°C) and a minimum of 12.7°F (-10.7°C).

What is the most humid month?

With an average relative humidity of 88%, January is the most humid month.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 2.4 days and typically collects 0.31" (8mm) of precipitation.

How many days does it rain?

Throughout the year, there are 90.4 rainfall days, and 7.09" (180mm) of precipitation is accumulated.

When does it snow in Lake Summerset?

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

When does it snow the most?

January is the month with the most snowfall in Lake Summerset. Snow falls for 9.3 days and accumulates 1.22" (31mm) of snow.

How many days does it snow?

In Lake Summerset, during the entire year, snow falls for 32.7 days and aggregates up to 3.9" (99mm) of snow.

What is the month with the least sunshine?

The months with the least sunshine are January and February, with an average of 3.5h of sunshine.

When is the lowest UV index?

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

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?

May through September are months without snowfall.

What is the rainiest month?

June is the month with the most rainfall. Rain falls for 12.6 days and accumulates 0.98" (25mm) of precipitation.

When are the longest days in Lake Summerset?

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

What is the month with the highest UV index?

June is the month with the highest UV index in Lake Summerset, with an average maximum UV index of 6.

What are the warmest months?

In Lake Summerset, the peak average temperatures are observed in July, with a high of 79.3°F (26.3°C) and a low of 62.2°F (16.8°C).

What month has the most sunshine?

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

What is the least humid month?

The least humid month is October, with an average relative humidity of 76%.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 6min of daylight.

Average temperature
Lake Summerset, IL

Average temperature - Lake Summerset, IL

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.8°F).

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).

Average pressure
Lake Summerset, IL

Average pressure - Lake Summerset, IL

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Lake Summerset, IL

Average wind speed - Lake Summerset, IL

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity
Lake Summerset, IL

Average humidity - Lake Summerset, IL

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (76%).

Average rainfall
Lake Summerset, IL

Average rainfall - Lake Summerset, IL

The wettest month (with the highest rainfall) is June (0.98").
The driest month (with the least rainfall) is January (0.31").

Average rainfall days
Lake Summerset, IL

Average rainfall days - Lake Summerset, IL

The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and February (2.4 days).

Average snowfall
Lake Summerset, IL

Average snowfall - Lake Summerset, IL

The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Lake Summerset, IL

Average snowfall days - Lake Summerset, IL

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Lake Summerset, IL

Average daylight / Average sunshine - Lake Summerset, 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 6min).

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).

Average sunshine days
Lake Summerset, IL

Average sunshine days - Lake Summerset, IL

The months with the most sunshine days are November and December (22.9 days).
The month with the least sunshine days is June (13.4 days).

Average visibility
Lake Summerset, IL

Average visibility - Lake Summerset, IL

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

Lake Summerset, Illinois, USA

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