Climate and monthly weather forecast
South Pekin, IL

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Weather in January

January, the same as December, in South Pekin, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 19°F (-7.2°C) and 31.3°F (-0.4°C). January is the coldest month, with an average high-temperature of 31.3°F (-0.4°C) and an average low-temperature of 19°F (-7.2°C). Weather in January »

Weather in February

The last month of the winter, February, is an icy month in South Pekin, Illinois, with temperature in the range of an average low of 22.6°F (-5.2°C) and an average high of 35.6°F (2°C). February's climate shows a minor adjustment in average high-temperatures to a cold 35.6°F (2°C) from January's 31.3°F (-0.4°C). Weather in February »

Weather in March

March, the first month of the spring in South Pekin, is a chilly month, with temperature in the range of an average high of 49.3°F (9.6°C) and an average low of 34°F (1.1°C). South Pekin's transition into March is marked by a temperature shift, moving from a cold 35.6°F (2°C) in February to a chilly 49.3°F (9.6°C). Weather in March »

Weather in April

April in South Pekin, Illinois, is a comfortable spring month, with an average temperature fluctuating between 61.3°F (16.3°C) and 44.2°F (6.8°C). As South Pekin transitions into April, a rise in the average high-temperature is observed, moving from a frosty 49.3°F (9.6°C) in March to an enjoyable 61.3°F (16.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in South Pekin, Illinois, with an average temperature varying between 55.2°F (12.9°C) and 72.1°F (22.3°C). South Pekin's transition into May brings a rise in the average high-temperature, moving from an enjoyable 61.3°F (16.3°C) in April to an agreeable 72.1°F (22.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in South Pekin, Illinois, with an average temperature varying between 63.7°F (17.6°C) and 80.2°F (26.8°C). As May transitions into June, South Pekin notices a gentle rise in the average high-temperature, transitioning from a pleasant 72.1°F (22.3°C) to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in South Pekin, Illinois, with an average temperature fluctuating between 82°F (27.8°C) and 65.3°F (18.5°C). July, with its average high-temperature of 82°F (27.8°C) and an average low-temperature of 65.3°F (18.5°C), holds the record as the warmest month. The average heat index in July is estimated at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in South Pekin, Illinois, with temperature in the range of an average high of 81.3°F (27.4°C) and an average low of 63.3°F (17.4°C). July's transformation into August witnesses an average high-temperature of a still warm 81.3°F (27.4°C), noting a minor change from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in South Pekin, is also a moderately hot month, with an average temperature varying between 76.3°F (24.6°C) and 57.2°F (14°C). Entering September, the average high-temperature is recorded at a still moderately hot 76.3°F (24.6°C), exhibiting a minimal shift from August's 81.3°F (27.4°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in South Pekin, Illinois, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 63.1°F (17.3°C). South Pekin's October weather shows a moderate shift in high-temperatures, falling from September's warm 76.3°F (24.6°C) to a comfortable 63.1°F (17.3°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in South Pekin, Illinois, with an average temperature varying between 35.2°F (1.8°C) and 48.6°F (9.2°C). November's arrival is marked by a notable drop in high-temperatures, falling from a refreshing 63.1°F (17.3°C) in October to a frosty 48.6°F (9.2°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in South Pekin, Illinois, with an average temperature fluctuating between 36.9°F (2.7°C) and 26.2°F (-3.2°C). The transition into December indicates a reduction in the average high-temperature, down to a wintry 36.9°F (2.7°C) from November's chilly 48.6°F (9.2°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in South Pekin?

January is the month when South Pekin, Illinois, experiences its coldest temperatures, averaging a high of 31.3°F (-0.4°C) and a low of 19°F (-7.2°C).

How many days does it rain in South Pekin?

Throughout the year, in South Pekin, there are 153.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.

When does it snow in South Pekin?

January through April, October through December are months with snowfall in South Pekin.

When does it snow the most in South Pekin?

The month with the most snowfall in South Pekin, Illinois, is January, when snow falls for 10.6 days and typically aggregates up to 3.86" (98mm) of snow.

How many days does it snow in South Pekin?

In South Pekin, Illinois, during the entire year, snow falls for 32.9 days and aggregates up to 12.24" (311mm) of snow.

What is the month with the least sunshine in South Pekin?

January has the least sunshine of the year, with an average of 4h of sunshine.

When is the lowest UV index in South Pekin?

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

When is Daylight Saving Time (DST) in South Pekin?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in South Pekin, 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 wettest month in South Pekin?

The month with the most rainfall in South Pekin, Illinois, is May, when the rain falls for 18.5 days and typically aggregates up to 4.09" (104mm) of precipitation.

When it does not snow in South Pekin?

May through September are months without snowfall in South Pekin.

When are the longest days in South Pekin?

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

What month has the most sunshine in South Pekin?

With an average of 10.1h of sunshine, June has the most sunshine of the year in South Pekin, Illinois.

What is the month with the highest UV index in South Pekin?

The months with the highest UV index in South Pekin are June and July, with an average maximum UV index of 6.

What month is the hottest in South Pekin?

In South Pekin, Illinois, the average temperatures in July are the highest, with a peak at 82°F (27.8°C) and a low of 65.3°F (18.5°C).

What is the most humid month in South Pekin?

With an average relative humidity of 84%, July is the most humid month in South Pekin.

What is the least humid month in South Pekin?

The least humid month in South Pekin, Illinois, is October, with an average relative humidity of 71%.

What is the driest month in South Pekin?

The month with the least rainfall in South Pekin, Illinois, is December, when the rain falls for 8.1 days and typically collects 1.54" (39mm) of precipitation.

What is the month with the shortest days in South Pekin?

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

Average temperature
South Pekin, IL

Average temperature - South Pekin, IL

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure
South Pekin, IL

Average pressure - South Pekin, IL

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed
South Pekin, IL

Average wind speed - South Pekin, IL

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average rainfall
South Pekin, IL

Average rainfall - South Pekin, IL

The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (1.54").

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Average rainfall days
South Pekin, IL

Average rainfall days - South Pekin, IL

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (6.3 days).

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Average snowfall
South Pekin, IL

Average snowfall - South Pekin, IL

The month with the highest snowfall is January (3.86").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days
South Pekin, IL

Average snowfall days - South Pekin, IL

The month with the highest number of snowfall days is January (10.6 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
South Pekin, IL

Average daylight / Average sunshine - South Pekin, 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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days
South Pekin, IL

Average sunshine days - South Pekin, IL

The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (10 days).

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Average UV index
South Pekin, IL

Average UV index - South Pekin, IL

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

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Average visibility
South Pekin, IL

Average visibility - South Pekin, 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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South Pekin, Illinois, USA

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