Climate and monthly weather forecast
Sibley, IL

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Weather in January

January, like December, is a freezing cold winter month in Sibley, Illinois, with an average temperature fluctuating between 31.5°F (-0.3°C) and 19.6°F (-6.9°C). Sibley's coldest month, January, registers temperatures that range from a high of 31.5°F (-0.3°C) to a low of 19.6°F (-6.9°C). Weather in January »

Weather in February

February, the last month of the winter in Sibley, is a wintry month, with an average temperature ranging between max 35.8°F (2.1°C) and min 22.6°F (-5.2°C). February ushers in an average high-temperature of an icy 35.8°F (2.1°C), aligning closely with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Sibley, Illinois, with an average temperature fluctuating between 34.2°F (1.2°C) and 48.4°F (9.1°C). In Sibley, stepping into March brings a temperature increase, moving up from February's cold 35.8°F (2.1°C) to a chilly 48.4°F (9.1°C). Weather in March »

Weather in April

April is a comfortable spring month in Sibley, Illinois, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 60.8°F (16°C). The arrival of April brings a change in Sibley's weather, with average high-temperatures moving from March's chilly 48.4°F (9.1°C) to a comfortable 60.8°F (16°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Sibley, Illinois, with an average temperature fluctuating between 71.6°F (22°C) and 55.4°F (13°C). Entering May, Sibley sees a temperature rise, with the average high-temperature advancing from April's enjoyable 60.8°F (16°C) to a pleasant 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer in Sibley, is a warm month, with an average temperature fluctuating between 62.8°F (17.1°C) and 79.5°F (26.4°C). The shift into June is accompanied by a modest temperature increase, with the average high-temperature edging up from an agreeable 71.6°F (22°C) in May to a moderately hot 79.5°F (26.4°C). Weather in June »

Weather in July

July, like June, in Sibley, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 64.6°F (18.1°C) and 80.8°F (27.1°C). Temperature readings reach their annual highs in July, averaging 80.8°F (27.1°C) and a minimum average of 64.6°F (18.1°C). In July, the heat index is estimated at a tropical 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Sibley, is another warm month, with an average temperature varying between 62.8°F (17.1°C) and 79.7°F (26.5°C). Sibley's weather in August indicates an average high-temperature of a still warm 79.7°F (26.5°C), nearly consistent with the 80.8°F (27.1°C) of July. Weather in August »

Weather in September

September, the first month of the autumn in Sibley, is still a warm month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 57.4°F (14.1°C). Transitioning into September, Sibley records an average high-temperature of a still warm 75.7°F (24.3°C), almost identical to August's 79.7°F (26.5°C). Weather in September »

Weather in October

October, like September, in Sibley, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 62.4°F (16.9°C) and 46.9°F (8.3°C). With October's arrival, Sibley's weather changes as the average high-temperature falls from a moderately hot 75.7°F (24.3°C) in September to a comfortable 62.4°F (16.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Sibley, is also a frosty month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 47.8°F (8.8°C). The arrival of November brings a distinct temperature shift, with the average high-temperature dropping from a refreshing 62.4°F (16.9°C) in October to a frosty 47.8°F (8.8°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Sibley, Illinois, with an average temperature fluctuating between 36.5°F (2.5°C) and 27°F (-2.8°C). The onset of December results in a decrease in the average high-temperature, receding from a chilly 47.8°F (8.8°C) in November to an icy 36.5°F (2.5°C). Weather in December »
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Frequently asked questions

What is the coldest month in Sibley?

In Sibley, January is the month with the lowest recorded average temperatures, measuring a high of 31.5°F (-0.3°C) and a low of 19.6°F (-6.9°C).

How many days does it rain in Sibley?

In Sibley, Illinois, during the entire year, the rain falls for 126.2 days and collects up to 14.96" (380mm) of precipitation.

When does it snow in Sibley?

Months with snowfall in Sibley, Illinois, are January through April, October through December.

When does it snow the most in Sibley?

January is the month with the most snowfall in Sibley. Snow falls for 9.3 days and accumulates 1.38" (35mm) of snow.

How many days does it snow in Sibley?

Throughout the year, there are 29.4 snowfall days, and 4.69" (119mm) of snow is accumulated.

What is the month with the least sunshine in Sibley?

January has the least sunshine of the year in Sibley, Illinois, with an average of 3.8h of sunshine.

What is the driest month in Sibley?

February and December are months with the least rain in Sibley, Illinois, when the rain falls for 5.1 days and typically aggregates up to 0.75" (19mm) of rain.

When is Daylight Saving Time (DST) in Sibley?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Sibley, Illinois, 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.

What is the rainiest month in Sibley?

The month with the most rainfall is May, when the rain falls for 14.9 days and typically aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Sibley?

May through September are months without snowfall in Sibley.

When are the longest days in Sibley?

With an average of 15h and 0min of daylight, June has the longest days of the year in Sibley, Illinois.

What month has the most sunshine in Sibley?

With an average of 9.8h of sunshine, June has the most sunshine of the year in Sibley, Illinois.

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

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

What are the warmest months in Sibley?

July, characterized by an average high temperature of 80.8°F (27.1°C) and a low temperature of 64.6°F (18.1°C), is generally the warmest month in Sibley, Illinois.

What is the most humid month in Sibley?

July is the most humid month in Sibley, Illinois, with an average relative humidity of 85%.

What is the least humid month in Sibley?

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

What is the month with the shortest days in Sibley?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

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

The month with the lowest UV index in Sibley is December, with an average maximum UV index of 1.

Average temperature
Sibley, IL

Average temperature - Sibley, IL

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

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Average pressure
Sibley, IL

Average pressure - Sibley, IL

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Sibley, IL

Average wind speed - Sibley, IL

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average rainfall
Sibley, IL

Average rainfall - Sibley, IL

The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").

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Average rainfall days
Sibley, IL

Average rainfall days - Sibley, IL

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall
Sibley, IL

Average snowfall - Sibley, IL

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Sibley, IL

Average snowfall days - Sibley, 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).

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Average daylight / Average sunshine
Sibley, IL

Average daylight / Average sunshine - Sibley, IL

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is June (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
Sibley, IL

Average sunshine days - Sibley, IL

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).

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Average visibility
Sibley, IL

Average visibility - Sibley, 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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Sibley, Illinois, USA

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