Climate and monthly weather forecast
Shady Grove, IL

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Weather in January

January, like December, in Shady Grove, Illinois, is an icy winter month, with temperature in the range of an average low of 28.6°F (-1.9°C) and an average high of 41.5°F (5.3°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 41.5°F (5.3°C) and a low of 28.6°F (-1.9°C). Weather in January »

Weather in February

February, the last month of the winter in Shady Grove, is a chilly month, with an average temperature varying between 46.6°F (8.1°C) and 32.4°F (0.2°C). February is marked by an average high-temperature of a frosty 46.6°F (8.1°C), almost identical to the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Shady Grove, is a mild month, with an average temperature varying between 40.5°F (4.7°C) and 56.8°F (13.8°C). March's onset brings a rise in the average high-temperature, moving from a frosty 46.6°F (8.1°C) in February to a moderate 56.8°F (13.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Shady Grove, Illinois, with an average temperature varying between 67.8°F (19.9°C) and 49.6°F (9.8°C). Shady Grove in April shows a temperature shift, moving from an average high of a mild 56.8°F (13.8°C) in March to an enjoyable 67.8°F (19.9°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Shady Grove, Illinois, with an average temperature fluctuating between 76.6°F (24.8°C) and 59°F (15°C). With the onset of May, Shady Grove's average high-temperature experiences a slight rise, moving from April's comfortable 67.8°F (19.9°C) to a moderately hot 76.6°F (24.8°C). Weather in May »

Weather in June

June, the first month of the summer in Shady Grove, is also a moderately hot month, with an average temperature ranging between max 85.8°F (29.9°C) and min 66.4°F (19.1°C). Shady Grove's transition into June is marked by a rise in the average high-temperature, advancing from 76.6°F (24.8°C) in May to a still moderately hot 85.8°F (29.9°C). Weather in June »

Weather in July

July is a tropical summer month in Shady Grove, Illinois, with temperature in the range of an average low of 69.4°F (20.8°C) and an average high of 88.7°F (31.5°C). Shady Grove's warmest weather arrives in July, when temperatures average a high of 88.7°F (31.5°C) and a low of 69.4°F (20.8°C). July's average heat index is evaluated at an extremely hot 105.8°F (41°C). Weather in July »

Weather in August

The last month of the summer, August, is another hot month in Shady Grove, Illinois, with an average temperature varying between 67.6°F (19.8°C) and 87.3°F (30.7°C). Shady Grove's shift from July to August is accompanied by an average high-temperature of a still tropical 87.3°F (30.7°C), a slight deviation from 88.7°F (31.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Shady Grove, Illinois, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 81.7°F (27.6°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from a hot 87.3°F (30.7°C) in August to a warm 81.7°F (27.6°C). Weather in September »

Weather in October

October, the same as September, in Shady Grove, Illinois, is an agreeable autumn month, with an average temperature fluctuating between 51.1°F (10.6°C) and 69.3°F (20.7°C). A subtle decrease in the average high-temperature marks October, falling from September's moderately hot 81.7°F (27.6°C) to an agreeable 69.3°F (20.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Shady Grove, is also a moderate month, with an average temperature ranging between min 40.1°F (4.5°C) and max 55.6°F (13.1°C). The onset of November introduces a moderate change in Shady Grove's weather, with average high-temperatures falling from October's agreeable 69.3°F (20.7°C) to a mild 55.6°F (13.1°C). Weather in November »

Weather in December

December, the first month of the winter in Shady Grove, is still a chilly month, with an average temperature fluctuating between 34.2°F (1.2°C) and 46.2°F (7.9°C). December shows a mild decline in the average high-temperature, falling from November's refreshing 55.6°F (13.1°C) to a chilly 46.2°F (7.9°C). Weather in December »
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Frequently asked questions

What is the coldest month in Shady Grove?

January stands out as Shady Grove's coldest month, with temperatures ranging between an average high of 41.5°F (5.3°C) and a low of 28.6°F (-1.9°C).

How many days does it rain in Shady Grove?

In Shady Grove, Illinois, during the entire year, the rain falls for 126.4 days and collects up to 16.89" (429mm) of precipitation.

When does it snow in Shady Grove?

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

How much does it snow in Shady Grove?

In Shady Grove, during the entire year, snow falls for 8.9 days and aggregates up to 1.65" (42mm) of snow.

What are the months with the lowest UV index in Shady Grove?

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

What is the snowiest month in Shady Grove?

February is the month with the most snowfall in Shady Grove. Snow falls for 3.3 days and accumulates 0.71" (18mm) of snow.

What is the month with the least sunshine in Shady Grove?

February has the least sunshine of the year in Shady Grove, with an average of 4.6h of sunshine.

What are the most humid months in Shady Grove?

March and May, with an average relative humidity of 79%, are most humid months in Shady Grove.

When is Daylight Saving Time (DST) in Shady Grove?

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 Shady Grove?

In Shady Grove, snow does not fall in April through October.

What is the rainiest month in Shady Grove?

The month with the most rainfall is May, when the rain falls for 14.7 days and typically aggregates up to 1.93" (49mm) of precipitation.

What are the months with the highest UV index in Shady Grove?

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

When are the longest days in Shady Grove?

With an average of 14h and 42min of daylight, June has the longest days of the year.

What is the month with the most sunshine in Shady Grove?

June and July, with an average of 10.5h of sunshine, are months with the most sunshine in Shady Grove.

What is the hottest time of year in Shady Grove?

July is the month when Shady Grove's temperatures reach their peak, with averages of 88.7°F (31.5°C) and lows of 69.4°F (20.8°C).

What is the driest month in Shady Grove?

September is the month with the least rainfall in Shady Grove, Illinois. Rain falls for 8.6 days and accumulates 0.63" (16mm) of precipitation.

What is the least humid month in Shady Grove?

October is the least humid month, with an average relative humidity of 70%.

What is the month with the shortest days in Shady Grove?

The month with the shortest days in Shady Grove, Illinois, is December, with an average of 9h and 42min of daylight.

Average temperature
Shady Grove, IL

Average temperature - Shady Grove, IL

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (41.5°F).

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.6°F).

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Average pressure
Shady Grove, IL

Average pressure - Shady Grove, IL

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed
Shady Grove, IL

Average wind speed - Shady Grove, IL

The windiest month (with the highest average wind speed) is April (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity
Shady Grove, IL

Average humidity - Shady Grove, IL

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall
Shady Grove, IL

Average rainfall - Shady Grove, IL

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.63").

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Average rainfall days
Shady Grove, IL

Average rainfall days - Shady Grove, IL

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is October (7.6 days).

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Average snowfall
Shady Grove, IL

Average snowfall - Shady Grove, IL

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Shady Grove, IL

Average snowfall days - Shady Grove, IL

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Shady Grove, IL

Average daylight / Average sunshine - Shady Grove, IL

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days
Shady Grove, IL

Average sunshine days - Shady Grove, IL

The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (14.2 days).

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Average UV index
Shady Grove, IL

Average UV index - Shady Grove, 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 and December (UV index 2).

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Average visibility
Shady Grove, IL

Average visibility - Shady Grove, 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).

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Shady Grove, Illinois, USA

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