March weather forecast and climate
Chicago, IL

The city of Chicago in Illinois on the shores of Lake Michigan, with a superb view of the sandy beach of Oak Street
The city of Chicago in Illinois on the shores of Lake Michigan, with a superb view of the sandy beach of Oak Street

Weather in March

The first month of the spring, March, is also a wintry month in Chicago, Illinois, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 41.5°F (5.3°C).

Temperature

In Chicago, the average high-temperature increases, from 32°F (0°C) in February, to a still wintry 41.5°F (5.3°C). The average low-temperature, in Chicago, Illinois, is 32.2°F (0.1°C).

Humidity

The average relative humidity in March is 77%.

Rainfall

In Chicago, in March, during 11.8 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Chicago, there are 160.2 rainfall days, and 36.97" (939mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Chicago are January through May, November and December. In Chicago, snow falls for 6.1 days, with typically accumulated 1.34" (34mm) of snow. In Chicago, during the entire year, snow falls for 40.9 days, and aggregates up to 13.9" (353mm) of snow.

Ocean temperature

In Chicago, the average water temperature is 37.8°F (3.2°C).
Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

Daylight

In March, the average length of the day in Chicago is 12h.

Sunshine

In Chicago, Illinois, the average sunshine is 6.1h.

UV index

The average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in March in Chicago?

The average high-temperature, in March, in Chicago, is 41.5°F (5.3°C), while the average low-temperature is 32.2°F (0.1°C).

What is the average humidity in March in Chicago?

In March, the average relative humidity is 77%.

How many days does it rain in March in Chicago?

In Chicago, Illinois, in March, it is raining for 11.8 days, with typically 2.13" (54mm) of accumulated precipitation.

How many days does it snow in March in Chicago?

In Chicago, in March, snow falls for 6.1 days, with typically accumulated 1.34" (34mm) of snow.

How cold is the water in March in Chicago?

In Chicago, the average seawater temperature in March is 37.8°F (3.2°C). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.

How many hours of daylight does Chicago have in March?

The average length of the day in March is 12h.

How many hours of sunshine does Chicago have in March?

The average sunshine in March in Chicago, Illinois, is 6.1h.

How high is the UV index in March in Chicago?

In March, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to the Sun's UV rays.

Average temperature in March
Chicago, IL

Average temperature in March - Chicago, IL
  • Average high temperature in March: 5.3°C

The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (-1.3°C).

  • Average low temperature in March: 0.1°C

The month with the highest average low temperature is July (19.9°C).
The coldest month (with the lowest average low temperature) is January (-6.3°C).

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Average pressure in March
Chicago, IL

Average pressure in March - Chicago, IL
  • Average pressure in March: 1018.8mbar

The month with the highest atmospheric pressure is January (1019.5mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).

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Average wind speed in March
Chicago, IL

Average wind speed in March - Chicago, IL
  • Average wind speed in March: 17.7km/h

The windiest month (with the highest average wind speed) is January (20.1km/h).
The calmest month (with the lowest average wind speed) is July (12.4km/h).

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Average humidity in March
Chicago, IL

Average humidity in March - Chicago, IL
  • Average humidity in March: 77%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in March
Chicago, IL

Average rainfall in March - Chicago, IL
  • Average rainfall in March: 54mm

The wettest month (with the highest rainfall) is June (124mm).
The driest month (with the least rainfall) is December (42mm).

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Average rainfall days in March
Chicago, IL

Average rainfall days in March - Chicago, IL
  • Average rainfall days in March: 11.8 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (5.5 days).

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Average snowfall in March
Chicago, IL

Average snowfall in March - Chicago, IL
  • Average snowfall in March: 34mm

The month with the highest snowfall is February (90mm).
Months with the least snowfall are June, July, August, September and October (0mm).

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Average snowfall days in March
Chicago, IL

Average snowfall days in March - Chicago, IL
  • Average snowfall days in March: 6.1 days

The month with the highest number of snowfall days is January (10.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in March
Chicago, IL

Average sea temperature in March - Chicago, IL
  • Average sea temperature in March: 3.2°C

The best month for swimming (with the highest average sea temperature) is August (23.3°C).
The coldest month (with the lowest average sea temperature) is February (2.7°C).

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Average daylight in March /
Average sunshine in March
Chicago, IL

Average daylight in March / Average sunshine in March - Chicago, IL
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in March: 6.1h

Months with the most sunshine are July and August (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 3.7h).

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Average sunshine days in March
Chicago, IL

Average sunshine days in March - Chicago, IL
  • Average sunshine days in March: 13.9 days

The month with the most sunshine days is December (15.5 days).
The month with the least sunshine days is July (9.3 days).

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Average UV index in March
Chicago, IL

Average UV index in March - Chicago, IL
  • Average UV index in March: 2

Months with the highest UV index are July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in March
Chicago, IL

Average cloud cover in March - Chicago, IL
  • Average cloud cover in March: 50

The month with the most cloud cover is January (Cloud cover 62).
Months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in March
Chicago, IL

Average visibility in March - Chicago, IL
  • Average visibility in March: 9km

Months with the highest visibility are September and October (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (9km).

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