March weather forecast and climate
Naperville, IL

A covered bridge over a river along the famous Naperville Riverwalk in Naperville, Illinois
A covered bridge over a river along the famous Naperville Riverwalk in Naperville, Illinois

Weather in March

March, the first month of the spring, in Naperville, is a frosty month, with average temperature varying between 31.1°F (-0.5°C) and 45.1°F (7.3°C).

Temperature

In Naperville, the average high-temperature increases, from a wintry 32.4°F (0.2°C) in February, to a frosty 45.1°F (7.3°C). The average low-temperature,, is 31.1°F (-0.5°C).

Humidity

In March, the average relative humidity is 76%.

Rainfall

In Naperville, Illinois, in March, during 9.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Naperville, Illinois, during the entire year, the rain falls for 132.2 days and collects up to 16.22" (412mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In March, it is snowing for 5.3 days. Throughout March, 0.59" (15mm) of snow is accumulated. In Naperville, during the entire year, snow falls for 38.7 days, and aggregates up to 6.93" (176mm) of snow.

Daylight

The average length of the day in Naperville, Illinois, is 12h.

Sunshine

The average sunshine in March is 6.2h.

UV index

In March, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 3 in March transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 Naperville?

In March, the average relative humidity in Naperville is 76%.

How many days does it rain in March in Naperville?

In Naperville, Illinois, in March, during 9.8 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

How much does it snow in Naperville in March?

In Naperville, Illinois, in March, during 5.3 snowfall days, 0.59" (15mm) of snow is typically accumulated.

How many hours of daylight does Naperville have in March?

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

How many hours of sunshine does Naperville have in March?

The average sunshine in March is 6.2h.

What is the UV index intensity in March in Naperville?

In March, the average daily maximum UV index in Naperville is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in March
Naperville, IL

Average temperature in March - Naperville, IL
  • Average high temperature in March: 45.1°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in March: 31.1°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in March
Naperville, IL

Average pressure in March - Naperville, 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
Naperville, IL

Average wind speed in March - Naperville, IL
  • Average wind speed in March: 9.3mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in March
Naperville, IL

Average humidity in March - Naperville, IL
  • Average humidity in March: 76%

Months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in March
Naperville, IL

Average rainfall in March - Naperville, IL
  • Average rainfall in March: 0.87"

The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in March
Naperville, IL

Average rainfall days in March - Naperville, IL
  • Average rainfall days in March: 9.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in March
Naperville, IL

Average snowfall in March - Naperville, IL
  • Average snowfall in March: 0.59"

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

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Average snowfall days in March
Naperville, IL

Average snowfall days in March - Naperville, IL
  • Average snowfall days in March: 5.3 days

The month with the highest number of snowfall days is January (11.1 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in March / Average sunshine in March - Naperville, 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: 6.2h

Months with the most sunshine are July and August (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 3.8h).

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Average sunshine days in March
Naperville, IL

Average sunshine days in March - Naperville, IL
  • Average sunshine days in March: 16 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.2 days).

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Average UV index in March
Naperville, IL

Average UV index in March - Naperville, IL
  • Average UV index in March: 3

Months with the highest UV index are June, 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
Naperville, IL

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

The month with the most cloud cover is January (Cloud cover 60).
Months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in March
Naperville, IL

Average visibility in March - Naperville, IL
  • Average visibility in March: 6mi

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

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