March weather forecast
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 still a cold month in Chicago, Illinois, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 32.2°F (0.1°C).

Temperature

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

Humidity

The average relative humidity in March is 77%.

Rainfall

In Chicago, during March, the rain falls for 11.8 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Chicago, Illinois, during the entire year, the rain falls for 160.2 days and collects up to 36.97" (939mm) of precipitation.

Snowfall

Months with snowfall are January through May, November and December. In Chicago, during March, snow falls for 6.1 days and regularly aggregates up to 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 seawater temperature in March 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

The average length of the day in March in Chicago, Illinois, is 11h and 58min.
On the first day of March in Chicago, sunrise is at 6:24 am and sunset at 5:40 pm CST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:14 pm CDT.
Note: On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 6. 2022, at 2:00 am; consequently, the time zone reverts from CDT to CST.

Sunshine

The average sunshine in March in Chicago is 6.1h.

UV index

In Chicago, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In March, the average maximum UV index of 2 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in March in Chicago?

In March, the average relative humidity in Chicago is 77%.

How much does it rain in Chicago in March?

In March, in Chicago, the rain falls for 11.8 days. Throughout March, 2.13" (54mm) of precipitation is accumulated.

How many days does it snow in March in Chicago?

In Chicago, in March, during 6.1 snowfall days, 1.34" (34mm) of snow is typically accumulated.

What is the water temperature in March in Chicago?

In March, the average ocean temperature in Chicago, Illinois, 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.

What is the average length of the day in March in Chicago?

In March, the average day length is 11h and 58min.

When is the sunrise / sunset in March in Chicago?

On the first day of March in Chicago, Illinois, sunrise is at 6:24 am and sunset at 5:40 pm CST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:14 pm CDT.

When does Daylight Saving Time (DST) start in March in Chicago?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Chicago, Illinois, and the time zone changes from CST to CDT. DST ends Sunday, November 6. 2022, at 2:00 am.

How long on average sun shines in March in Chicago?

In March, the average sunshine duration in Chicago is 6.1h.

How high is the UV index in March in Chicago?

In Chicago, the average daily maximum UV index in March is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.

Average temperature in March
Chicago, IL

Average temperature in March - Chicago, IL
  • Average high temperature in March: 41.5°F

The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in March: 32.2°F

The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

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Average pressure in March
Chicago, IL

Average pressure in March - Chicago, IL
  • Average pressure in March: 30.09"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in March
Chicago, IL

Average wind speed in March - Chicago, IL
  • Average wind speed in March: 11mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).

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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: 2.13"

The wettest month (with the highest rainfall) is June (4.88").
The driest month (with the least rainfall) is December (1.65").

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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: 1.34"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are June, July, August, September and October (0").

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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).
The 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: 37.8°F

The best month for swimming (with the highest average sea temperature) is August (73.9°F).
The coldest month (with the lowest average sea temperature) is February (36.9°F).

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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: 11h and 58min

The month with the longest days is June (Average daylight: 15h and 11min).
The month with the shortest days is December (Average daylight: 9h and 11min).

  • Average sunshine in March: 6.1h

The 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

The months with the highest UV index are July and August (UV index 6).
The 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).
The 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: 6mi

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

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