Climate and monthly weather forecast
Dawson, IL

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Weather in January

January, like December, in Dawson, Illinois, is another cold winter month, with an average temperature varying between 20.8°F (-6.2°C) and 33.1°F (0.6°C). In Dawson, the month of January is known for its lowest average temperatures, reaching a high of 33.1°F (0.6°C) and a low of 20.8°F (-6.2°C). Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Dawson, Illinois, with an average temperature varying between 25°F (-3.9°C) and 37.9°F (3.3°C). The advent of February sees the average high-temperature at a still icy 37.9°F (3.3°C), subtly shifted from January's 33.1°F (0.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Dawson, Illinois, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 35.6°F (2°C). With the onset of March, Dawson's average high-temperature sees a rise, moving from February's wintry 37.9°F (3.3°C) to a fresh 51.1°F (10.6°C). Weather in March »

Weather in April

April in Dawson, Illinois, is a comfortable spring month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 63.1°F (17.3°C). As March transitions into April, Dawson sees a rise in the average high-temperature, moving from a cool 51.1°F (10.6°C) to a refreshing 63.1°F (17.3°C). Weather in April »

Weather in May

May, the last month of the spring in Dawson, is a pleasant month, with an average temperature ranging between max 72.9°F (22.7°C) and min 56.5°F (13.6°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 63.1°F (17.3°C) to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

June, the first month of the summer in Dawson, is a warm month, with temperature in the range of an average high of 81.1°F (27.3°C) and an average low of 64.4°F (18°C). As Dawson, Illinois, transitions into June, a marginal rise in the average high-temperature is observed, moving from an agreeable 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »

Weather in July

July, like June, in Dawson, Illinois, is a moderately hot summer month, with an average temperature ranging between max 82.8°F (28.2°C) and min 66°F (18.9°C). July, on average, is the warmest month, registering a high temperature of 82.8°F (28.2°C) and a low of 66°F (18.9°C). In July, the heat index is appraised at a tropical 91.4°F (33°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Dawson, Illinois, with an average temperature varying between 64°F (17.8°C) and 81.7°F (27.6°C). The transition into August is marked with an average high-temperature of a still moderately hot 81.7°F (27.6°C), showing an insignificant shift from July's 82.8°F (28.2°C). Weather in August »

Weather in September

September, the first month of the autumn in Dawson, is also a moderately hot month, with temperature in the range of an average low of 58.5°F (14.7°C) and an average high of 77.2°F (25.1°C). Dawson in September witnesses an average high-temperature of a still warm 77.2°F (25.1°C), indicating a slight variation from August's 81.7°F (27.6°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Dawson, Illinois, with an average temperature fluctuating between 64°F (17.8°C) and 48.2°F (9°C). Dawson's weather in October involves a decrease in the average high-temperature, moving down from September's warm 77.2°F (25.1°C) to a refreshing 64°F (17.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Dawson, is also a fresh month, with an average temperature varying between 50°F (10°C) and 36.5°F (2.5°C). Dawson's progression into November includes a drop in the average high-temperature, from a comfortable 64°F (17.8°C) in October to a cool 50°F (10°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Dawson, Illinois, with an average temperature fluctuating between 28.2°F (-2.1°C) and 38.7°F (3.7°C). December comes with a decrease in the average high-temperature, falling from a cool 50°F (10°C) in November to an icy 38.7°F (3.7°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 Dawson?

The coldest temperatures occur during January, when averages reach a peak of 33.1°F (0.6°C) and a low of 20.8°F (-6.2°C).

How much does it rain in Dawson?

In Dawson, Illinois, during the entire year, the rain falls for 131.5 days and collects up to 18.54" (471mm) of precipitation.

When does it snow in Dawson?

January through April, November and December are months with snowfall in Dawson.

What is the snowiest month in Dawson?

January is the month with the most snowfall in Dawson. Snow falls for 8 days and accumulates 1.81" (46mm) of snow.

How many days does it snow in Dawson?

Throughout the year, in Dawson, there are 24.5 snowfall days, and 5.51" (140mm) of snow is accumulated.

What is the month with the least sunshine in Dawson?

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

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

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

When is Daylight Saving Time (DST) in Dawson?

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

When it does not snow in Dawson?

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

What is the rainiest month in Dawson?

June is the month with the most rainfall. Rain falls for 14.6 days and accumulates 2.36" (60mm) of precipitation.

When are the longest days in Dawson?

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

What month has the most sunshine in Dawson?

With an average of 10.4h of sunshine, June has the most sunshine of the year.

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

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

What are the warmest months in Dawson?

In Dawson, July records the average highest temperatures, peaking at 82.8°F (28.2°C) and reaching a low of 66°F (18.9°C).

What is the most humid month in Dawson?

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

What is the least humid month in Dawson?

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

What is the driest month in Dawson?

The month with the least rainfall is December, when the rain falls for 6.6 days and typically collects 0.83" (21mm) of precipitation.

What is the month with the shortest days in Dawson?

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

Average temperature
Dawson, IL

Average temperature - Dawson, IL

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.1°F).

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure
Dawson, IL

Average pressure - Dawson, IL

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Dawson, IL

Average wind speed - Dawson, IL

The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average rainfall
Dawson, IL

Average rainfall - Dawson, IL

The wettest month (with the highest rainfall) is June (2.36").
The driest month (with the least rainfall) is December (0.83").

Average rainfall days
Dawson, IL

Average rainfall days - Dawson, IL

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.7 days).

Average snowfall
Dawson, IL

Average snowfall - Dawson, IL

The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Dawson, IL

Average snowfall days - Dawson, IL

The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Dawson, IL

Average daylight / Average sunshine - Dawson, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days
Dawson, IL

Average sunshine days - Dawson, IL

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.5 days).

Average UV index
Dawson, IL

Average UV index - Dawson, 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
Dawson, IL

Average visibility - Dawson, 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).

Dawson, Illinois, USA

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