Climate and monthly weather forecast
Jonesboro, IL

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Weather in January

January, like December, in Jonesboro, Illinois, is an icy winter month, with an average temperature varying between 26.8°F (-2.9°C) and 39.7°F (4.3°C). The coldest temperatures occur during January, when averages reach a peak of 39.7°F (4.3°C) and a low of 26.8°F (-2.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a frosty month in Jonesboro, Illinois, with an average temperature ranging between max 44.6°F (7°C) and min 30.4°F (-0.9°C). Jonesboro's February average high-temperature settles at a chilly 44.6°F (7°C), showing a near match with the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a moderate month in Jonesboro, Illinois, with an average temperature ranging between max 55.6°F (13.1°C) and min 39.4°F (4.1°C). March sees a rise in the average high-temperature, climbing from a chilly 44.6°F (7°C) in February to a refreshing 55.6°F (13.1°C). Weather in March »

Weather in April

April in Jonesboro, Illinois, is an enjoyable spring month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 66.6°F (19.2°C). As April arrives, a rise in the average high-temperature is observed, moving from a mild 55.6°F (13.1°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Jonesboro, Illinois, with an average temperature fluctuating between 58.1°F (14.5°C) and 75.7°F (24.3°C). May's arrival sees a rise in the average high-temperature, jumping from April's refreshing 66.6°F (19.2°C) to a moderately hot 75.7°F (24.3°C). Weather in May »

Weather in June

June, the first month of the summer in Jonesboro, is also a moderately hot month, with an average temperature varying between 85.6°F (29.8°C) and 66.2°F (19°C). The shift from May to June brings an increase in the average high-temperature, moving from 75.7°F (24.3°C) to a still moderately hot 85.6°F (29.8°C). Weather in June »

Weather in July

July in Jonesboro, Illinois, is a hot summer month, with an average temperature fluctuating between 88.3°F (31.3°C) and 69.1°F (20.6°C). July is the warmest month of the year, registering average temperatures as high as 88.3°F (31.3°C) and as low as 69.1°F (20.6°C). July's mean heat index is evaluated at a scorching 104°F (40°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Jonesboro, Illinois, with an average temperature varying between 86.5°F (30.3°C) and 66.7°F (19.3°C). The advent of August sees the average high-temperature at a still hot 86.5°F (30.3°C), subtly shifted from July's 88.3°F (31.3°C). Weather in August »

Weather in September

September, the first month of the autumn in Jonesboro, is also a moderately hot month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 60.6°F (15.9°C). A moderate decline in average high-temperatures is noted in September, moving from a tropical 86.5°F (30.3°C) in August to a warm 81°F (27.2°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Jonesboro, Illinois, with an average temperature varying between 49.5°F (9.7°C) and 67.8°F (19.9°C). With the beginning of October, the average high-temperature shows a decrease, transitioning from a warm 81°F (27.2°C) in September to a comfortable 67.8°F (19.9°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Jonesboro, Illinois, with an average temperature fluctuating between 54.5°F (12.5°C) and 38.7°F (3.7°C). November involves a decrease in temperature, down from an enjoyable 67.8°F (19.9°C) in October to a fresh 54.5°F (12.5°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Jonesboro, Illinois, with an average temperature fluctuating between 44.8°F (7.1°C) and 32.2°F (0.1°C). Stepping into December, Jonesboro observes a temperature decline, with the average high falling from November's fresh 54.5°F (12.5°C) to a frosty 44.8°F (7.1°C). Weather in December »
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Frequently asked questions

What part of the year is the coldest in Jonesboro?

With its average high temperature of 39.7°F (4.3°C) and a low of 26.8°F (-2.9°C), January is regarded as the coldest month in Jonesboro.

How much does it rain in Jonesboro?

Throughout the year, in Jonesboro, Illinois, there are 143 rainfall days, and 27.44" (697mm) of precipitation is accumulated.

When does it snow in Jonesboro?

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

How much does it snow in Jonesboro?

Throughout the year, there are 14.9 snowfall days, and 6.06" (154mm) of snow is accumulated.

What is the month with the least sunshine in Jonesboro?

The months with the least sunshine are January and February, with an average of 4.6h of sunshine.

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

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

What is the snowiest month in Jonesboro?

The month with the most snowfall is February, when snow falls for 3.9 days and typically aggregates up to 1.89" (48mm) of snow.

When is Daylight Saving Time (DST) in Jonesboro?

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

April is the month with the most rainfall in Jonesboro. Rain falls for 13.4 days and accumulates 3.31" (84mm) of precipitation.

What is the most humid month in Jonesboro?

May is the most humid month in Jonesboro, with an average relative humidity of 79%.

When it does not snow in Jonesboro?

May through September are months without snowfall in Jonesboro.

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

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

When are the longest days in Jonesboro?

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

What part of the year is the hottest in Jonesboro?

In Jonesboro, July is known for its average highest temperatures, reaching a high of 88.3°F (31.3°C) and a low of 69.1°F (20.6°C).

What month has the most sunshine in Jonesboro?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Jonesboro.

What is the driest month in Jonesboro?

September is the month with the least rainfall in Jonesboro. Rain falls for 10.8 days and accumulates 1.3" (33mm) of precipitation.

What is the least humid month in Jonesboro?

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

What is the month with the shortest days in Jonesboro?

The month with the shortest days in Jonesboro is December, with an average of 9h and 36min of daylight.

Average temperature
Jonesboro, IL

Average temperature - Jonesboro, IL

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure
Jonesboro, IL

Average pressure - Jonesboro, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed
Jonesboro, IL

Average wind speed - Jonesboro, IL

The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average rainfall
Jonesboro, IL

Average rainfall - Jonesboro, IL

The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").

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Average rainfall days
Jonesboro, IL

Average rainfall days - Jonesboro, IL

The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).

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Average snowfall
Jonesboro, IL

Average snowfall - Jonesboro, IL

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
Jonesboro, IL

Average snowfall days - Jonesboro, IL

The month with the highest number of snowfall days is January (4.6 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
Jonesboro, IL

Average daylight / Average sunshine - Jonesboro, 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 36min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days
Jonesboro, IL

Average sunshine days - Jonesboro, IL

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index
Jonesboro, IL

Average UV index - Jonesboro, 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, February and December (UV index 2).

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Average visibility
Jonesboro, IL

Average visibility - Jonesboro, 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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Jonesboro, Illinois, USA

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