Climate and monthly weather forecast
Havana, IL

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Weather in January

January, the same as December, in Havana, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 19.8°F (-6.8°C) and 31.8°F (-0.1°C). January, with an average high of 31.8°F (-0.1°C) and a low of 19.8°F (-6.8°C), signifies the coldest month of the year. Weather in January »

Weather in February

February, the last month of the winter in Havana, is a wintry month, with an average temperature fluctuating between 23.5°F (-4.7°C) and 37°F (2.8°C). The transition from January to February brings an average high-temperature of an icy 37°F (2.8°C), barely different from January's 31.8°F (-0.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Havana, Illinois, with an average temperature varying between 35.1°F (1.7°C) and 49.8°F (9.9°C). The start of March is characterized by an increase in the average high-temperature, transitioning from an icy 37°F (2.8°C) in February to a frosty 49.8°F (9.9°C). Weather in March »

Weather in April

April in Havana, Illinois, is an enjoyable spring month, with an average temperature varying between 45°F (7.2°C) and 61.9°F (16.6°C). April witnesses an increase in the average high-temperature, moving from a frosty 49.8°F (9.9°C) in March to an enjoyable 61.9°F (16.6°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Havana, Illinois, with an average temperature fluctuating between 55.9°F (13.3°C) and 72.3°F (22.4°C). In Havana, the average high-temperature in May increases from a comfortable 61.9°F (16.6°C) in April to an agreeable 72.3°F (22.4°C). Weather in May »

Weather in June

June, the first month of the summer in Havana, is a warm month, with temperature in the range of an average low of 63.9°F (17.7°C) and an average high of 80.8°F (27.1°C). June witnesses a subtle temperature ascent, adjusting from a pleasant 72.3°F (22.4°C) in May to a warm 80.8°F (27.1°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Havana, Illinois, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 66°F (18.9°C). The warmest time of the year is July, with temperatures averaging a high of 82.6°F (28.1°C) and a low of 66°F (18.9°C). July's mean heat index is evaluated at a hot 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Havana, Illinois, with an average temperature varying between 82°F (27.8°C) and 64°F (17.8°C). August reports an average high-temperature of a still moderately hot 82°F (27.8°C), slightly varied from July's 82.6°F (28.1°C). Weather in August »

Weather in September

September, the first month of the autumn in Havana, is still a warm month, with an average temperature fluctuating between 58.5°F (14.7°C) and 77.2°F (25.1°C). Transitioning into September, Havana experiences an average high-temperature of a still moderately hot 77.2°F (25.1°C), marking a minor shift from the preceding month. Weather in September »

Weather in October

October, like September, in Havana, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 47.1°F (8.4°C) and 63.5°F (17.5°C). Havana in October demonstrates a small temperature transition, adjusting from an average high of a moderately hot 77.2°F (25.1°C) in September to an enjoyable 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 Havana, Illinois, with temperature in the range of an average high of 49.5°F (9.7°C) and an average low of 35.2°F (1.8°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's enjoyable 63.5°F (17.5°C) to a chilly 49.5°F (9.7°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Havana, Illinois, with an average temperature ranging between max 37.9°F (3.3°C) and min 26.4°F (-3.1°C). December brings a drop in Havana's average high-temperature, falling from a chilly 49.5°F (9.7°C) in November to an icy 37.9°F (3.3°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Havana?

Havana's coldest month, January, generally records average temperatures ranging from a high of 31.8°F (-0.1°C) to a low of 19.8°F (-6.8°C).

How many days does it rain in Havana?

In Havana, Illinois, during the entire year, the rain falls for 142.9 days and collects up to 28.31" (719mm) of precipitation.

When does it snow in Havana?

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

When does it snow the most in Havana?

The month with the most snowfall in Havana is January, when snow falls for 9.2 days and typically aggregates up to 3.5" (89mm) of snow.

How much does it snow in Havana?

Throughout the year, in Havana, Illinois, there are 28.4 snowfall days, and 10.31" (262mm) of snow is accumulated.

What is the month with the least sunshine in Havana?

With an average of 4.2h of sunshine, January has the least sunshine of the year.

When is the lowest UV index in Havana?

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

When is Daylight Saving Time (DST) in Havana?

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.

What is the wettest month in Havana?

May is the month with the most rainfall in Havana. Rain falls for 18.3 days and accumulates 3.86" (98mm) of precipitation.

When it does not snow in Havana?

In Havana, Illinois, snow does not fall in May through September.

When are the longest days in Havana?

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

What month has the most sunshine in Havana?

June has the most sunshine of the year, with an average of 10.3h of sunshine.

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

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

What is the warmest month in Havana?

Havana's July weather, with an average high temperature of 82.6°F (28.1°C) and an average low temperature of 66°F (18.9°C), tends to be the warmest of the year.

What is the most humid month in Havana?

The most humid month is July, with an average relative humidity of 83%.

What is the least humid month in Havana?

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

What is the driest month in Havana?

December is the month with the least rainfall in Havana, Illinois. Rain falls for 7.5 days and accumulates 1.38" (35mm) of precipitation.

What is the month with the shortest days in Havana?

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

Average temperature
Havana, IL

Average temperature - Havana, IL

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (31.8°F).

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure
Havana, IL

Average pressure - Havana, 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).

Average wind speed
Havana, IL

Average wind speed - Havana, IL

The windiest months (with the highest average wind speed) are January, February and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average rainfall
Havana, IL

Average rainfall - Havana, IL

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is December (1.38").

Average rainfall days
Havana, IL

Average rainfall days - Havana, IL

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

Average snowfall
Havana, IL

Average snowfall - Havana, IL

The month with the highest snowfall is January (3.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Havana, IL

Average snowfall days - Havana, IL

The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Havana, IL

Average daylight / Average sunshine - Havana, 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 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days
Havana, IL

Average sunshine days - Havana, IL

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

Average UV index
Havana, IL

Average UV index - Havana, 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
Havana, IL

Average visibility - Havana, IL

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

Havana, Illinois, USA

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