Climate and monthly weather forecast
Elwin, IL

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Weather in January

January, the same as December, is an icy winter month in Elwin, Illinois, with an average temperature ranging between min 21.2°F (-6°C) and max 32.9°F (0.5°C). Temperature records mark January as the coldest month, with highs averaging 32.9°F (0.5°C) and lows at 21.2°F (-6°C). Weather in January »

Weather in February

The last month of the winter, February, is also a wintry month in Elwin, Illinois, with an average temperature ranging between min 25.2°F (-3.8°C) and max 37.8°F (3.2°C). February commences with an average high-temperature of a still icy 37.8°F (3.2°C), showing little deviation from January's 32.9°F (0.5°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Elwin, Illinois, with an average temperature fluctuating between 35.6°F (2°C) and 50.5°F (10.3°C). With the onset of March, Elwin sees a temperature rise, with the average high-temperature moving from February's wintry 37.8°F (3.2°C) to a cool 50.5°F (10.3°C). Weather in March »

Weather in April

April is a comfortable spring month in Elwin, Illinois, with an average temperature varying between 46°F (7.8°C) and 61.9°F (16.6°C). Elwin in April experiences an increase in the average high-temperature, moving from March's cool 50.5°F (10.3°C) to a comfortable 61.9°F (16.6°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Elwin, Illinois, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 72.9°F (22.7°C). Elwin's transition into May is marked by a temperature shift, moving from an enjoyable 61.9°F (16.6°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Elwin, Illinois, with an average temperature fluctuating between 80.6°F (27°C) and 64°F (17.8°C). The commencement of June sees a minor shift in the average high-temperature, moving from a pleasant 72.9°F (22.7°C) in May to a moderately hot 80.6°F (27°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Elwin, Illinois, with an average temperature varying between 65.7°F (18.7°C) and 82°F (27.8°C). In Elwin, the highest average temperatures are observed in July, with a high of 82°F (27.8°C) and a low of 65.7°F (18.7°C). In July, the average heat index is appraised at a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Elwin, Illinois, with an average temperature varying between 81.1°F (27.3°C) and 63.9°F (17.7°C). With the onset of August, the average high-temperature stands at a still warm 81.1°F (27.3°C), closely aligned with July's 82°F (27.8°C). Weather in August »

Weather in September

September, the first month of the autumn in Elwin, is still a warm month, with an average temperature varying between 77°F (25°C) and 58.5°F (14.7°C). The average high-temperature during September is a still warm 77°F (25°C), almost matching the conditions of the preceding month. Weather in September »

Weather in October

October, like September, in Elwin, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 64°F (17.8°C) and 48°F (8.9°C). The onset of October coincides with a reduction in the average high-temperature, falling from a moderately hot 77°F (25°C) in September to an enjoyable 64°F (17.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Elwin, is also a frosty month, with an average temperature varying between 36.1°F (2.3°C) and 49.8°F (9.9°C). The move into November indicates a reduction in the average high-temperature, down from October's comfortable 64°F (17.8°C) to a frosty 49.8°F (9.9°C). Weather in November »

Weather in December

December, the first month of the winter in Elwin, is still a cold month, with an average temperature ranging between min 27.9°F (-2.3°C) and max 38.5°F (3.6°C). The onset of December introduces a moderate change in Elwin's weather, with average high-temperatures falling from November's frosty 49.8°F (9.9°C) to a wintry 38.5°F (3.6°C). Weather in December »
Updated: Jul 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January is the month when Elwin sees the average lowest temperatures, with a high of 32.9°F (0.5°C) and a low of 21.2°F (-6°C).

How many days does it rain?

Throughout the year, there are 130.2 rainfall days, and 16.34" (415mm) of precipitation is accumulated.

When does it snow?

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

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 7.2 days and accumulates 1.85" (47mm) of snow.

How many days does it snow in Elwin?

In Elwin, during the entire year, snow falls for 23.1 days and aggregates up to 5.67" (144mm) of snow.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.1h of sunshine.

What is the month with the lowest UV index?

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

What is the driest month?

The months with the least rainfall are February and December Rain falls for 5.8 days and accumulates 0.87" (22mm) of rain.

When is Daylight Saving Time (DST) in Elwin?

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?

May is the month with the most rainfall in Elwin. Rain falls for 17 days and accumulates 2.01" (51mm) of precipitation.

When it does not snow?

In Elwin, snow does not fall in May through October.

When are the longest days?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What month has the most sunshine?

The month with the most sunshine in Elwin, Illinois, is June, with an average of 10.4h of sunshine.

What is the month with the highest UV index?

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?

July, characterized by an average high temperature of 82°F (27.8°C) and a low temperature of 65.7°F (18.7°C), is generally the warmest month.

What is the most humid month?

The most humid month in Elwin is July, with an average relative humidity of 84%.

What is the least humid month?

October is the least humid month, with an average relative humidity of 70%.

What is the month with the shortest days?

December has the shortest days of the year in Elwin, with an average of 9h and 24min of daylight.

Average pressure
Elwin, IL

Average pressure - Elwin, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Elwin, IL

Average wind speed - Elwin, IL

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

Average rainfall
Elwin, IL

Average rainfall - Elwin, IL

The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").

Average rainfall days
Elwin, IL

Average rainfall days - Elwin, IL

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).

Average snowfall
Elwin, IL

Average snowfall - Elwin, IL

The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Elwin, IL

Average snowfall days - Elwin, IL

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Elwin, IL

Average daylight / Average sunshine - Elwin, IL

The month with the longest days is June (Average daylight: 14h and 54min).
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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days
Elwin, IL

Average sunshine days - Elwin, IL

The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).

Average UV index
Elwin, IL

Average UV index - Elwin, 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
Elwin, IL

Average visibility - Elwin, 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).

Elwin, Illinois, USA

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