Climate and monthly weather forecast
Poplar Grove, IL

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Weather in January

January, the same as December, in Poplar Grove, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 13.6°F (-10.2°C) and an average high of 25.9°F (-3.4°C). In Poplar Grove, the lowest average temperatures are observed in January, with a high of 25.9°F (-3.4°C) and a low of 13.6°F (-10.2°C). Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Poplar Grove, Illinois, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 17.1°F (-8.3°C). February's arrival brings an average high-temperature of a still subzero cold 29.8°F (-1.2°C), demonstrating subtle variation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Poplar Grove, is a chilly month, with an average temperature fluctuating between 28.9°F (-1.7°C) and 44.1°F (6.7°C). March's onset brings a temperature rise, moving from a subzero cold 29.8°F (-1.2°C) in February to a chilly 44.1°F (6.7°C). Weather in March »

Weather in April

April in Poplar Grove, Illinois, is a mild spring month, with an average temperature ranging between min 39°F (3.9°C) and max 55.6°F (13.1°C). The rise of average high-temperatures is seen in April, with an increase from a frosty 44.1°F (6.7°C) in March to a moderate 55.6°F (13.1°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Poplar Grove, Illinois, with an average temperature fluctuating between 67.8°F (19.9°C) and 50.5°F (10.3°C). May brings a rise in the average high-temperature, transitioning from April's mild 55.6°F (13.1°C) to a still refreshing 67.8°F (19.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Poplar Grove, Illinois, with an average temperature fluctuating between 76.6°F (24.8°C) and 59.4°F (15.2°C). The average high-temperature mildly increases in June, edging from an enjoyable 67.8°F (19.9°C) in May to a moderately hot 76.6°F (24.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Poplar Grove, Illinois, with an average temperature varying between 79.9°F (26.6°C) and 62.8°F (17.1°C). July is the month when Poplar Grove experiences its warmest temperatures, averaging a high of 79.9°F (26.6°C) and a low of 62.8°F (17.1°C). Weather in July »

Weather in August

August, the last month of the summer in Poplar Grove, is another warm month, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 78.1°F (25.6°C). At the onset of August, Poplar Grove records an average high-temperature of a still moderately hot 78.1°F (25.6°C), showing little deviation from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Poplar Grove, Illinois, with an average temperature varying between 54.1°F (12.3°C) and 72.3°F (22.4°C). As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a moderately hot 78.1°F (25.6°C) to an agreeable 72.3°F (22.4°C). Weather in September »

Weather in October

October, the same as September, in Poplar Grove, Illinois, is another refreshing autumn month, with an average temperature varying between 59°F (15°C) and 43.2°F (6.2°C). Poplar Grove's progression into October involves a drop in the average high-temperature, receding from a pleasant 72.3°F (22.4°C) in September to a moderate 59°F (15°C). Weather in October »

Weather in November

November, the last month of the autumn in Poplar Grove, is also a frosty month, with an average temperature fluctuating between 44.6°F (7°C) and 31.3°F (-0.4°C). November brings a significant decrease in the average high-temperature, moving down from a refreshing 59°F (15°C) in October to a chilly 44.6°F (7°C). Weather in November »

Weather in December

December, the first month of the winter in Poplar Grove, is also a wintry month, with temperature in the range of an average low of 22.3°F (-5.4°C) and an average high of 32.4°F (0.2°C). December involves a decrease in temperature, down from a chilly 44.6°F (7°C) in November to a cold 32.4°F (0.2°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Poplar Grove?

With an average high-temperature of 25.9°F (-3.4°C) and an average low-temperature of 13.6°F (-10.2°C), January is the coldest month.

What is the most humid month in Poplar Grove?

January is the most humid month in Poplar Grove, with an average relative humidity of 86%.

How much does it rain in Poplar Grove?

Throughout the year, in Poplar Grove, there are 154 rainfall days, and 30.47" (774mm) of precipitation is accumulated.

When does it snow in Poplar Grove?

January through April, October through December are months with snowfall in Poplar Grove.

What is the snowiest month in Poplar Grove?

The month with the most snowfall in Poplar Grove is January, when snow falls for 12.6 days and typically aggregates up to 5.35" (136mm) of snow.

How much does it snow in Poplar Grove?

In Poplar Grove, Illinois, during the entire year, snow falls for 45.3 days and aggregates up to 17.28" (439mm) of snow.

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

The month with the least sunshine in Poplar Grove is January, with an average of 3.7h of sunshine.

When is the lowest UV index in Poplar Grove?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the driest month in Poplar Grove?

February is the month with the least rainfall in Poplar Grove. Rain falls for 5.6 days and accumulates 1.46" (37mm) of precipitation.

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

May through September are months without snowfall.

What is the rainiest month in Poplar Grove?

The month with the most rainfall in Poplar Grove is June, when the rain falls for 17.8 days and typically aggregates up to 4.09" (104mm) of precipitation.

When are the longest days in Poplar Grove?

The month with the longest days in Poplar Grove, Illinois, is June, with an average of 15h and 12min of daylight.

When is the highest UV index in Poplar Grove?

With an average maximum UV index of 6, June is the month with the highest UV index in Poplar Grove, Illinois.

What time of the year is the hottest in Poplar Grove?

During the warmest month in Poplar Grove, July, temperatures average a high of 79.9°F (26.6°C) and a low of 62.8°F (17.1°C).

What are the months with the most sunshine in Poplar Grove?

July and August, with an average of 9.7h of sunshine, are months with the most sunshine in Poplar Grove.

What is the least humid month in Poplar Grove?

The least humid month is October, with an average relative humidity of 75%.

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

December has the shortest days of the year, with an average of 9h and 6min of daylight.

Average temperature
Poplar Grove, IL

Average temperature - Poplar Grove, IL

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).

Average pressure
Poplar Grove, IL

Average pressure - Poplar Grove, IL

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Poplar Grove, IL

Average wind speed - Poplar Grove, IL

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity
Poplar Grove, IL

Average humidity - Poplar Grove, IL

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).

Average rainfall
Poplar Grove, IL

Average rainfall - Poplar Grove, IL

The wettest month (with the highest rainfall) is June (4.09").
The driest month (with the least rainfall) is February (1.46").

Average rainfall days
Poplar Grove, IL

Average rainfall days - Poplar Grove, IL

The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (5.6 days).

Average snowfall
Poplar Grove, IL

Average snowfall - Poplar Grove, IL

The month with the highest snowfall is January (5.35").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Poplar Grove, IL

Average snowfall days - Poplar Grove, IL

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Poplar Grove, IL

Average daylight / Average sunshine - Poplar Grove, IL

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days
Poplar Grove, IL

Average sunshine days - Poplar Grove, IL

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is June (10.2 days).

Average UV index
Poplar Grove, IL

Average UV index - Poplar Grove, IL

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average visibility
Poplar Grove, IL

Average visibility - Poplar Grove, IL

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

Poplar Grove, Illinois, USA

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