Climate and monthly weather forecast
Tremont, IL

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Weather in January

January, like December, is another subzero cold winter month in Tremont, Illinois, with temperature in the range of an average low of 18.9°F (-7.3°C) and an average high of 31.1°F (-0.5°C). January stands out as Tremont's coldest month, with an average high-temperature of 31.1°F (-0.5°C) and a low-temperature of 18.9°F (-7.3°C). Weather in January »

Weather in February

February, the last month of the winter in Tremont, is an icy month, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 35.4°F (1.9°C). The weather during February records an average high-temperature of a wintry 35.4°F (1.9°C), closely mirroring the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Tremont, is a chilly month, with an average temperature fluctuating between 34°F (1.1°C) and 49.3°F (9.6°C). The shift from February to March is marked by an increase in the average high-temperature, moving from a wintry 35.4°F (1.9°C) to a frosty 49.3°F (9.6°C). Weather in March »

Weather in April

April in Tremont, Illinois, is a moderate spring month, with an average temperature varying between 44.2°F (6.8°C) and 60.6°F (15.9°C). April's onset brings a temperature rise, moving from a frosty 49.3°F (9.6°C) in March to a refreshing 60.6°F (15.9°C). Weather in April »

Weather in May

May, the last month of the spring in Tremont, is a pleasant month, with an average temperature varying between 55.2°F (12.9°C) and 71.8°F (22.1°C). Tremont's weather in May presents a rise in the average high-temperature, moving from a mild 60.6°F (15.9°C) in April to an agreeable 71.8°F (22.1°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Tremont, Illinois, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.9°F (26.6°C). Tremont's June weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 71.8°F (22.1°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July, like June, in Tremont, Illinois, is a moderately hot summer month, with an average temperature ranging between min 64.9°F (18.3°C) and max 81.9°F (27.7°C). July is the month that records the highest temperatures, with averages ranging from a high of 81.9°F (27.7°C) to a low of 64.9°F (18.3°C). The average heat index in July is estimated at a tropical 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Tremont, Illinois, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 80.8°F (27.1°C). The high-temperature average in August for Tremont is a still moderately hot 80.8°F (27.1°C), staying closely aligned with July's conditions. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Tremont, Illinois, with an average temperature varying between 57.2°F (14°C) and 76.1°F (24.5°C). The transition into September notes an average high-temperature of a still moderately hot 76.1°F (24.5°C), revealing a mild distinction from the 80.8°F (27.1°C) in August. Weather in September »

Weather in October

October, like September, in Tremont, Illinois, is another comfortable autumn month, with an average temperature ranging between min 46.4°F (8°C) and max 62.2°F (16.8°C). The commencement of October involves a temperature shift, with the average high-temperature dropping from a moderately hot 76.1°F (24.5°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Tremont, Illinois, with an average temperature fluctuating between 48.4°F (9.1°C) and 34.9°F (1.6°C). Tremont in November demonstrates a small temperature transition, adjusting from an average high of a refreshing 62.2°F (16.8°C) in October to a chilly 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in Tremont, is still a cold month, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.2°F (-3.2°C). The onset of December is marked by a decrease in temperature, transitioning from a chilly 48.4°F (9.1°C) in November to a cold 36.5°F (2.5°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 Tremont?

Tremont experiences its lowest temperatures in January, with an average peak of 31.1°F (-0.5°C) and a low of 18.9°F (-7.3°C).

How many days does it rain in Tremont?

In Tremont, Illinois, during the entire year, the rain falls for 127.2 days and collects up to 16.77" (426mm) of precipitation.

When does it snow in Tremont?

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

When does it snow the most in Tremont?

January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.

How much does it snow in Tremont?

In Tremont, Illinois, during the entire year, snow falls for 27.6 days and aggregates up to 6.46" (164mm) of snow.

What is the month with the least sunshine in Tremont?

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

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

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

What is the driest month in Tremont?

February and December are months with the least rain when the rain falls for 4.8 days and typically aggregates up to 0.83" (21mm) of rain.

When is Daylight Saving Time (DST) in Tremont?

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

May is the month with the most rainfall in Tremont. Rain falls for 17.2 days and accumulates 2.48" (63mm) of precipitation.

When it does not snow in Tremont?

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

When are the longest days in Tremont?

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

What month has the most sunshine in Tremont?

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

What is the month with the highest UV index in Tremont?

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

What part of the year is the hottest in Tremont?

July temperatures in Tremont tend to peak at an average high of 81.9°F (27.7°C) and dip to a low of 64.9°F (18.3°C).

What is the most humid month in Tremont?

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

What is the least humid month in Tremont?

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

What is the month with the shortest days in Tremont?

The month with the shortest days in Tremont, Illinois, is December, with an average of 9h and 18min of daylight.

Average temperature
Tremont, IL

Average temperature - Tremont, IL

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.1°F).

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure
Tremont, IL

Average pressure - Tremont, 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
Tremont, IL

Average wind speed - Tremont, 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).

Average humidity
Tremont, IL

Average humidity - Tremont, IL

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Tremont, IL

Average rainfall - Tremont, IL

The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are February and December (0.83").

Average rainfall days
Tremont, IL

Average rainfall days - Tremont, IL

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (4.8 days).

Average snowfall
Tremont, IL

Average snowfall - Tremont, IL

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

Average snowfall days
Tremont, IL

Average snowfall days - Tremont, IL

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Tremont, IL

Average daylight / Average sunshine - Tremont, 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: 3h and 54min).

Average sunshine days
Tremont, IL

Average sunshine days - Tremont, IL

The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (11.4 days).

Average UV index
Tremont, IL

Average UV index - Tremont, 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).

Average visibility
Tremont, IL

Average visibility - Tremont, 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).

Tremont, Illinois, USA

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