Climate and monthly weather forecast
Lexington, IL

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Weather in January

January, like December, is a freezing cold winter month in Lexington, Illinois, with an average temperature varying between 18.7°F (-7.4°C) and 30.6°F (-0.8°C). The month of January sees the lowest average temperatures, reaching 30.6°F (-0.8°C) at the peak and 18.7°F (-7.4°C) at the low. Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Lexington, Illinois, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 22.3°F (-5.4°C). February ushers in an average high-temperature of an icy 35.2°F (1.8°C), aligning closely with the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Lexington, is a chilly month, with an average temperature varying between 48°F (8.9°C) and 33.4°F (0.8°C). Lexington's transition into March is marked by a rise in the average high-temperature, advancing from a wintry 35.2°F (1.8°C) in February to a chilly 48°F (8.9°C). Weather in March »

Weather in April

April in Lexington, Illinois, is a refreshing spring month, with an average temperature fluctuating between 59.9°F (15.5°C) and 43.9°F (6.6°C). With the onset of April, Lexington experiences a temperature shift, with the average high-temperature moving from a frosty 48°F (8.9°C) in March to a mild 59.9°F (15.5°C). Weather in April »

Weather in May

May, the last month of the spring in Lexington, is an agreeable month, with an average temperature fluctuating between 71.6°F (22°C) and 55.2°F (12.9°C). The onset of May marks an increase in the average high-temperature, moving from a moderate 59.9°F (15.5°C) in April to a pleasant 71.6°F (22°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Lexington, Illinois, with an average temperature ranging between min 62.4°F (16.9°C) and max 79.3°F (26.3°C). Lexington observes a slight ascent in average high-temperatures during June, adjusting from a pleasant 71.6°F (22°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Lexington, Illinois, with an average temperature ranging between max 80.8°F (27.1°C) and min 64.6°F (18.1°C). Lexington, Illinois, witnesses the warmest weather in July, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 64.6°F (18.1°C). In July, the heat index is appraised at a hot 86°F (30°C). Weather in July »

Weather in August

August, the last month of the summer in Lexington, is also a moderately hot month, with temperature in the range of an average high of 80.1°F (26.7°C) and an average low of 62.8°F (17.1°C). Lexington observes an average high-temperature of a still moderately hot 80.1°F (26.7°C) in August, barely different from 80.8°F (27.1°C) in July. Weather in August »

Weather in September

September, the first month of the autumn in Lexington, is still a warm month, with an average temperature fluctuating between 57.2°F (14°C) and 75.7°F (24.3°C). Lexington observes an average high-temperature of a still warm 75.7°F (24.3°C) in September, barely different from 80.1°F (26.7°C) in August. Weather in September »

Weather in October

October, like September, in Lexington, Illinois, is another comfortable autumn month, with an average temperature ranging between min 46.8°F (8.2°C) and max 62.1°F (16.7°C). With the onset of October, Lexington's average high-temperature adjusts, receding from September's moderately hot 75.7°F (24.3°C) to a comfortable 62.1°F (16.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Lexington, is also a frosty month, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 47.7°F (8.7°C). As Lexington welcomes November, the average high-temperature witnesses a distinct drop, moving from a comfortable 62.1°F (16.7°C) in October to a chilly 47.7°F (8.7°C). Weather in November »

Weather in December

December, the first month of the winter in Lexington, is also a wintry month, with temperature in the range of an average low of 26.1°F (-3.3°C) and an average high of 36.5°F (2.5°C). December suggests a modest reduction in the average high-temperature, shifting from a chilly 47.7°F (8.7°C) in November to an icy 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 month is the coldest in Lexington?

The month of January sees the average lowest temperatures, reaching 30.6°F (-0.8°C) at the peak and 18.7°F (-7.4°C) at the low.

What is the driest month in Lexington?

January is the month with the least rainfall in Lexington, Illinois. Rain falls for 5.3 days and accumulates 0.79" (20mm) of precipitation.

How much does it rain in Lexington?

Throughout the year, in Lexington, there are 129.6 rainfall days, and 16.73" (425mm) of precipitation is accumulated.

When does it snow in Lexington?

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

When does it snow the most in Lexington?

January is the month with the most snowfall. Snow falls for 9.9 days and accumulates 2.09" (53mm) of snow.

How many days does it snow in Lexington?

In Lexington, during the entire year, snow falls for 28.1 days and aggregates up to 7.6" (193mm) of snow.

What is the month with the least sunshine in Lexington?

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

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

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

When is Daylight Saving Time (DST) in Lexington?

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

The month with the most rainfall in Lexington is May, when the rain falls for 17 days and typically aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Lexington?

May through October are months without snowfall in Lexington.

When are the longest days in Lexington?

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

What month has the most sunshine in Lexington?

With an average of 10h of sunshine, June has the most sunshine of the year in Lexington.

When is the highest UV index in Lexington?

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

What time of the year is the hottest in Lexington?

Temperature readings in Lexington, Illinois, reach their annual highs in July, averaging 80.8°F (27.1°C) and a minimum average of 64.6°F (18.1°C).

What is the most humid month in Lexington?

July is the most humid month in Lexington, Illinois, with an average relative humidity of 85%.

What is the least humid month in Lexington?

The least humid month in Lexington is October, with an average relative humidity of 71%.

What is the month with the shortest days in Lexington?

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

Average temperature
Lexington, IL

Average temperature - Lexington, IL

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

Average pressure
Lexington, IL

Average pressure - Lexington, 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
Lexington, IL

Average wind speed - Lexington, IL

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity
Lexington, IL

Average humidity - Lexington, IL

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Lexington, IL

Average rainfall - Lexington, IL

The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days
Lexington, IL

Average rainfall days - Lexington, IL

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.9 days).

Average snowfall
Lexington, IL

Average snowfall - Lexington, IL

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Lexington, IL

Average snowfall days - Lexington, IL

The month with the highest number of snowfall days is January (9.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Lexington, IL

Average daylight / Average sunshine - Lexington, 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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days
Lexington, IL

Average sunshine days - Lexington, IL

The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (11 days).

Average UV index
Lexington, IL

Average UV index - Lexington, 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
Lexington, IL

Average visibility - Lexington, 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).

Lexington, Illinois, USA

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