Climate and monthly weather forecast
Fletcher, IL

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Weather in January

January, like December, is another subzero cold winter month in Fletcher, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 30.7°F (-0.7°C). Fletcher notes the coldest temperatures in January, with a high average of 30.7°F (-0.7°C) and a low of 18.9°F (-7.3°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Fletcher, Illinois, with an average temperature ranging between max 35.6°F (2°C) and min 22.5°F (-5.3°C). February's beginning signals an average high-temperature of a cold 35.6°F (2°C), barely different from January's 30.7°F (-0.7°C). Weather in February »

Weather in March

March, the first month of the spring in Fletcher, is a chilly month, with temperature in the range of an average high of 48.6°F (9.2°C) and an average low of 34°F (1.1°C). March marks a rise in the average high-temperature, moving from February's icy 35.6°F (2°C) to a frosty 48.6°F (9.2°C). Weather in March »

Weather in April

April is a moderate spring month in Fletcher, Illinois, with an average temperature varying between 44.2°F (6.8°C) and 60.4°F (15.8°C). With the onset of April, the average high-temperature slightly shifts from March's frosty 48.6°F (9.2°C) to a mild 60.4°F (15.8°C). Weather in April »

Weather in May

May, the last month of the spring in Fletcher, is a pleasant month, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 72°F (22.2°C). In Fletcher, stepping into May brings a temperature increase, moving up from April's refreshing 60.4°F (15.8°C) to a pleasant 72°F (22.2°C). Weather in May »

Weather in June

June, the first month of the summer in Fletcher, is a warm month, with an average temperature fluctuating between 63.1°F (17.3°C) and 79.3°F (26.3°C). As Fletcher welcomes June, the average high-temperature sees a modest rise, transitioning from an agreeable 72°F (22.2°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Fletcher, Illinois, is another warm summer month, with an average temperature ranging between max 80.8°F (27.1°C) and min 64.9°F (18.3°C). In Fletcher, July is the warmest month, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 64.9°F (18.3°C). In July, the heat index is calculated to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Fletcher, Illinois, with an average temperature ranging between min 63.1°F (17.3°C) and max 79.9°F (26.6°C). In August, Fletcher notes an average high-temperature of a still moderately hot 79.9°F (26.6°C), hardly different from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Fletcher, Illinois, with an average temperature fluctuating between 57.4°F (14.1°C) and 75.6°F (24.2°C). The advent of September presents an average high-temperature of a still moderately hot 75.6°F (24.2°C), maintaining a close correlation with the preceding month. Weather in September »

Weather in October

October, like September, in Fletcher, Illinois, is another refreshing autumn month, with an average temperature varying between 46.6°F (8.1°C) and 62.1°F (16.7°C). Start of October brings a shift in the average high-temperature, falling from September's moderately hot 75.6°F (24.2°C) to a comfortable 62.1°F (16.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Fletcher, is another chilly month, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 34.7°F (1.5°C). The beginning of November signals a clear reduction in the average high-temperature, falling 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 Fletcher, is also an icy month, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 26.1°F (-3.3°C). Observing a mild shift, the average high-temperature during December reduces from November's frosty 47.7°F (8.7°C) to a cold 36.5°F (2.5°C). Weather in December »
Updated: Jul 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

January is Fletcher's coldest month, registering average high temperatures of 30.7°F (-0.7°C) and lows of 18.9°F (-7.3°C).

How many days does it rain?

Throughout the year, there are 163.1 rainfall days, and 33.62" (854mm) of precipitation is accumulated.

When does it snow?

Months with snowfall in Fletcher are January through April, October through December.

What is the snowiest month?

January is the month with the most snowfall in Fletcher, Illinois. Snow falls for 12.8 days and accumulates 5.04" (128mm) of snow.

How many days does it snow?

In Fletcher, during the entire year, snow falls for 40.7 days and aggregates up to 17.01" (432mm) of snow.

What is the month with the least sunshine in Fletcher?

The month with the least sunshine in Fletcher is January, with an average of 3.7h of sunshine.

What are the months with the lowest UV index?

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

When is Daylight Saving Time (DST)?

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 rainiest month?

May is the month with the most rainfall. Rain falls for 20.1 days and accumulates 4.57" (116mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

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

What month has the most sunshine?

With an average of 9.8h of sunshine, June has the most sunshine of the year.

What are the months 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 is the warmest month?

Fletcher experiences its highest temperatures in July, with an average peak of 80.8°F (27.1°C) and a low of 64.9°F (18.3°C).

What is the most humid month?

The most humid month is July, with an average relative humidity of 86%.

What is the least humid month?

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

What is the driest month?

The month with the least rainfall is December, when the rain falls for 9 days and typically collects 1.93" (49mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

Average temperature
Fletcher, IL

Average temperature - Fletcher, 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 (30.7°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
Fletcher, IL

Average pressure - Fletcher, 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
Fletcher, IL

Average wind speed - Fletcher, IL

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity
Fletcher, IL

Average humidity - Fletcher, IL

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is October (71%).

Average rainfall
Fletcher, IL

Average rainfall - Fletcher, IL

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is December (1.93").

Average rainfall days
Fletcher, IL

Average rainfall days - Fletcher, IL

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is February (6.9 days).

Average snowfall
Fletcher, IL

Average snowfall - Fletcher, IL

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Fletcher, IL

Average snowfall days - Fletcher, IL

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Fletcher, IL

Average daylight / Average sunshine - Fletcher, 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: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days
Fletcher, IL

Average sunshine days - Fletcher, IL

The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (8.4 days).

Average UV index
Fletcher, IL

Average UV index - Fletcher, 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, October, November and December (UV index 2).

Average visibility
Fletcher, IL

Average visibility - Fletcher, IL

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

Fletcher, Illinois, USA

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