Climate and monthly weather forecast
Tolono, IL

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Weather in January

January, like December, in Tolono, Illinois, is an icy winter month, with an average temperature fluctuating between 20.7°F (-6.3°C) and 32.2°F (0.1°C). Tolono's January weather reaches an average high of 32.2°F (0.1°C) and an average low of 20.7°F (-6.3°C), making it the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Tolono, Illinois, with an average temperature fluctuating between 24.3°F (-4.3°C) and 37.4°F (3°C). The arrival of February brings an average high-temperature of a still wintry 37.4°F (3°C), closely following the temperature pattern of January. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Tolono, Illinois, with an average temperature varying between 35.1°F (1.7°C) and 49.6°F (9.8°C). March shows a rise in the average high-temperature, moving from February's icy 37.4°F (3°C) to a frosty 49.6°F (9.8°C). Weather in March »

Weather in April

April in Tolono, Illinois, is a comfortable spring month, with temperature in the range of an average low of 45.7°F (7.6°C) and an average high of 61.5°F (16.4°C). April brings a temperature increase, with average high-temperatures moving from March's frosty 49.6°F (9.8°C) to an enjoyable 61.5°F (16.4°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Tolono, Illinois, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 72.7°F (22.6°C). An escalation in the average high-temperature is seen with the onset of May, moving from an enjoyable 61.5°F (16.4°C) in April to a pleasant 72.7°F (22.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Tolono, Illinois, with an average temperature varying between 63.9°F (17.7°C) and 80.2°F (26.8°C). A gentle upsurge in temperatures occurs as May gives way to June, with average highs shifting from a pleasant 72.7°F (22.6°C) to a moderately hot 80.2°F (26.8°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Tolono, Illinois, with an average temperature ranging between min 65.1°F (18.4°C) and max 81.7°F (27.6°C). July is the month when Tolono, Illinois, experiences its warmest temperatures, averaging a high of 81.7°F (27.6°C) and a low of 65.1°F (18.4°C). During July, the heat index is appraised at a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in Tolono, is another warm month, with an average temperature ranging between min 63.3°F (17.4°C) and max 81.1°F (27.3°C). The shift into August reveals an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely mirroring July's climate. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Tolono, Illinois, with an average temperature fluctuating between 58.3°F (14.6°C) and 76.5°F (24.7°C). A minor adjustment in Tolono's average high-temperature is noted with the start of September, touching a still moderately hot 76.5°F (24.7°C) from August's 81.1°F (27.3°C). Weather in September »

Weather in October

October, like September, in Tolono, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 47.7°F (8.7°C) and max 63.5°F (17.5°C). As Tolono enters October, the average high-temperature decreases from the a warm 76.5°F (24.7°C) of September to a comfortable 63.5°F (17.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Tolono, Illinois, with an average temperature ranging between min 35.8°F (2.1°C) and max 49.1°F (9.5°C). The shift from October to November brings a noticeable decrease in the average high-temperature, dropping from a comfortable 63.5°F (17.5°C) to a frosty 49.1°F (9.5°C). Weather in November »

Weather in December

December, the first month of the winter in Tolono, is also a wintry month, with an average temperature ranging between min 27.7°F (-2.4°C) and max 37.8°F (3.2°C). Tolono's weather changes with the onset of December, slightly falling from a frosty 49.1°F (9.5°C) in November to a wintry 37.8°F (3.2°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Tolono?

January proves to be the coldest month in Tolono, Illinois, recording an average maximum temperature of 32.2°F (0.1°C) and a minimum temperature of 20.7°F (-6.3°C).

How much does it rain in Tolono?

In Tolono, Illinois, during the entire year, the rain falls for 143.2 days and collects up to 23.11" (587mm) of precipitation.

When does it snow in Tolono?

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

How many days does it snow in Tolono?

Throughout the year, there are 30.6 snowfall days, and 8.54" (217mm) of snow is accumulated.

What is the month with the least sunshine in Tolono?

With an average of 3.9h of sunshine, January has the least sunshine of the year.

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

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

What is the snowiest month in Tolono?

February is the month with the most snowfall in Tolono, Illinois. Snow falls for 8.1 days and accumulates 2.56" (65mm) of snow.

When is Daylight Saving Time (DST) in Tolono?

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

May is the month with the most rainfall in Tolono. Rain falls for 16.8 days and accumulates 2.8" (71mm) of precipitation.

When it does not snow in Tolono?

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

When are the longest days in Tolono?

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

What month has the most sunshine in Tolono?

The month with the most sunshine is June, with an average of 10.1h of sunshine.

When is the highest UV index in Tolono?

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

What is the hottest time of year in Tolono?

July, on average, is the warmest month in Tolono, Illinois, registering a high temperature of 81.7°F (27.6°C) and a low of 65.1°F (18.4°C).

What is the most humid month in Tolono?

With an average relative humidity of 85%, July is the most humid month.

What is the driest month in Tolono?

The month with the least rainfall in Tolono, Illinois, is September, when the rain falls for 11.5 days and typically collects 1.18" (30mm) of precipitation.

What is the least humid month in Tolono?

The least humid month in Tolono is October, with an average relative humidity of 70%.

What is the month with the shortest days in Tolono?

The month with the shortest days in Tolono is December, with an average of 9h and 24min of daylight.

Average temperature
Tolono, IL

Average temperature - Tolono, IL

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure
Tolono, IL

Average pressure - Tolono, 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).

Average wind speed
Tolono, IL

Average wind speed - Tolono, IL

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.4mph).

Average rainfall
Tolono, IL

Average rainfall - Tolono, IL

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is September (1.18").

Average rainfall days
Tolono, IL

Average rainfall days - Tolono, IL

The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is February (6.2 days).

Average snowfall
Tolono, IL

Average snowfall - Tolono, IL

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Tolono, IL

Average snowfall days - Tolono, IL

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Tolono, IL

Average daylight / Average sunshine - Tolono, 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 24min).

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days
Tolono, IL

Average sunshine days - Tolono, IL

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (10.8 days).

Average UV index
Tolono, IL

Average UV index - Tolono, IL

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

Average visibility
Tolono, IL

Average visibility - Tolono, 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).

Tolono, Illinois, USA

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