Climate and monthly weather forecast
Onarga, IL

Weather in January

January, the same as December, in Onarga, Illinois, is another subzero cold winter month, with an average temperature ranging between max 30.7°F (-0.7°C) and min 18.7°F (-7.4°C). January is the coldest month, with an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.7°F (-7.4°C). Weather in January »

Weather in February

February, the last month of the winter in Onarga, is a wintry month, with an average temperature ranging between min 22.3°F (-5.4°C) and max 35.1°F (1.7°C). In February, the average high-temperature is practically the same as in January - a cold 35.1°F (1.7°C). Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Onarga, Illinois, with an average temperature ranging between min 33.4°F (0.8°C) and max 47.8°F (8.8°C). In Onarga, the average high-temperature in March increases from a cold 35.1°F (1.7°C) in February to a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

April in Onarga, Illinois, is a mild spring month, with an average temperature fluctuating between 43.7°F (6.5°C) and 59.5°F (15.3°C). In Onarga, the average high-temperature in April rises from a frosty 47.8°F (8.8°C) in March to a mild 59.5°F (15.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Onarga, Illinois, with an average temperature fluctuating between 54.9°F (12.7°C) and 71.4°F (21.9°C). In May, the average high-temperature increases from a moderate 59.5°F (15.3°C) in April to a pleasant 71.4°F (21.9°C). Weather in May »

Weather in June

June, the first month of the summer in Onarga, is a moderately hot month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.8°F (17.1°C). In June, the average high-temperature marginally rises from an agreeable 71.4°F (21.9°C) in May to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Onarga, Illinois, is another warm summer month, with an average temperature fluctuating between 64.4°F (18°C) and 81°F (27.2°C). July is the warmest month, with an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.4°F (18°C). In July, the average heat index is estimated at a hot 87.8°F (31°C). Weather in July »

Weather in August

August, the last month of the summer in Onarga, is also a moderately hot month, with an average temperature varying between 62.6°F (17°C) and 79.9°F (26.6°C). In August, the average high-temperature is essentially the same as in July - a still warm 79.9°F (26.6°C). Weather in August »

Weather in September

September, the first month of the autumn in Onarga, is also a moderately hot month, with an average temperature ranging between max 75.2°F (24°C) and min 57.2°F (14°C). In September, the average high-temperature is relatively the same as in August - a still warm 75.2°F (24°C). Weather in September »

Weather in October

October, like September, in Onarga, Illinois, is another comfortable autumn month, with temperature in the range of an average low of 46.8°F (8.2°C) and an average high of 62.2°F (16.8°C). In October, the average high-temperature drops from a moderately hot 75.2°F (24°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Onarga, is another chilly month, with an average temperature varying between 34.9°F (1.6°C) and 47.8°F (8.8°C). In November, the average high-temperature plummets from an enjoyable 62.2°F (16.8°C) in October to a frosty 47.8°F (8.8°C). Weather in November »

Weather in December

December, the first month of the winter in Onarga, is also a wintry month, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.2°F (-3.2°C). In December, the average high-temperature drops from a frosty 47.8°F (8.8°C) in November to a cold 36.5°F (2.5°C). Weather in December »
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FAQ

What is the coldest month in Onarga?

January is the coldest month in Onarga, Illinois, with an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.7°F (-7.4°C).

What is the driest month in Onarga?

The months with the least rainfall in Onarga, Illinois, are January, February and December Rain falls for 5.5 days and accumulates 0.91" (23mm) of rain.

How many days does it rain in Onarga?

Throughout the year, in Onarga, Illinois, there are 130.7 rainfall days, and 17.13" (435mm) of precipitation is accumulated.

When does it snow in Onarga?

Months with snowfall in Onarga are January through April, November and December.

How many days does it snow in Onarga?

Throughout the year, there are 30.7 snowfall days, and 8.19" (208mm) of snow is accumulated.

What is the month with the least sunshine in Onarga?

With an average of 3.8h of sunshine, January has the least sunshine of the year.

What is the snowiest month in Onarga?

The month with the most snowfall in Onarga is February, when snow falls for 7.6 days and typically aggregates up to 2.24" (57mm) of snow.

When is Daylight Saving Time (DST) in Onarga?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Onarga?

The month with the most rainfall in Onarga is May, when the rain falls for 17.3 days and typically aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Onarga?

In Onarga, Illinois, snow does not fall in May through October.

When are the longest days in Onarga?

With an average of 15h and 2min of daylight, June has the longest days of the year.

What month has the most sunshine in Onarga?

With an average of 9.9h of sunshine, June has the most sunshine of the year in Onarga.

When is the highest UV index in Onarga?

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

What is the warmest month in Onarga?

With an average high-temperature of 81°F (27.2°C) and an average low-temperature of 64.4°F (18°C), July is the warmest month in Onarga, Illinois.

What is the most humid month in Onarga?

The most humid month in Onarga is July, with an average relative humidity of 85%.

What is the least humid month in Onarga?

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

What is the month with the shortest days in Onarga?

December has the shortest days of the year in Onarga, Illinois, with an average of 9h and 19min of daylight.

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

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

Average temperature
Onarga, IL

Average temperature - Onarga, IL

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure
Onarga, IL

Average pressure - Onarga, IL

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Onarga, IL

Average wind speed - Onarga, IL

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average rainfall
Onarga, IL

Average rainfall - Onarga, IL

The wettest month (with the highest rainfall) is May (2.44").
The driest months (with the least rainfall) are January, February and December (0.91").

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Average rainfall days
Onarga, IL

Average rainfall days - Onarga, IL

The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (5.5 days).

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Average snowfall
Onarga, IL

Average snowfall - Onarga, IL

The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Onarga, IL

Average snowfall days - Onarga, IL

The month with the highest number of snowfall days is January (9.6 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
Onarga, IL

Average daylight / Average sunshine - Onarga, IL

The month with the longest days is June (Average daylight: 15h and 2min).
The month with the shortest days is December (Average daylight: 9h and 19min).

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days
Onarga, IL

Average sunshine days - Onarga, IL

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (11.4 days).

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Average visibility
Onarga, IL

Average visibility - Onarga, 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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