March weather forecast
Arlington Heights, IL

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Weather in March

As the clasp of winter weakens, weather transformations become evident in March. Notably, there is a significant temperature jump with highs approaching 43.9°F (6.6°C). Equally noteworthy is the marked descend in snowfall to just 1.61" (41mm) occurring over approximately a week. Sunshine hours lengthen to 12, suggesting winter's retreat. The gradual changing of the atmospheric guards is apparent with some rainy days and stronger winds.

Temperature

As Arlington Heights, Illinois, welcomes March, the average high-temperature sees a rise, transitioning from a freezing cold 31.6°F (-0.2°C) in February to a chilly 43.9°F (6.6°C). Arlington Heights's nights in March cool down to an average low-temperature of 30.7°F (-0.7°C).

Humidity

In March, the average relative humidity is 75%.

Rainfall

In Arlington Heights, during March, the rain falls for 11.9 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Arlington Heights, during the entire year, the rain falls for 142.7 days and collects up to 27.91" (709mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Arlington Heights, in March, during 6.6 snowfall days, 1.61" (41mm) of snow is typically accumulated. Throughout the year, in Arlington Heights, there are 48.8 snowfall days, and 21.02" (534mm) of snow is accumulated.

Daylight

In Arlington Heights, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:25 am and sunset at 5:42 pm CST. On the last day of March, in Arlington Heights, sunrise is at 6:34 am and sunset at 7:16 pm CDT.
Note: 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 lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.

Sunshine

The average sunshine in March in Arlington Heights is 5.9h.

UV index

In Arlington Heights, the average daily maximum UV index in March is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: In March, a regular UV index of 2 translates into these guidelines:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in Arlington Heights in March?

The average high-temperature and low-temperature during March are 43.9°F (6.6°C) and 30.7°F (-0.7°C) respectively.

What is the average humidity in March in Arlington Heights?

The average relative humidity in March in Arlington Heights is 75%.

How many days does it rain in March in Arlington Heights?

In Arlington Heights, during March, the rain falls for 11.9 days and regularly aggregates up to 1.93" (49mm) of precipitation.

How much does it snow in Arlington Heights in March?

In Arlington Heights, Illinois, during March, snow falls for 6.6 days and regularly aggregates up to 1.61" (41mm) of snow.

What is the average length of the day in March in Arlington Heights?

The average day length in March in Arlington Heights, Illinois, is 11h and 58min.

When is the sunrise / sunset in March in Arlington Heights?

In March, on the first day of the month, sunrise is at 6:25 am and sunset at 5:42 pm CST. On the last day of the month, sunrise is at 6:34 am and sunset at 7:16 pm CDT.

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

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Arlington Heights?

In Arlington Heights, Illinois, the average sunshine duration in March is 5.9h.

What is the UV index intensity in March in Arlington Heights?

The average daily maximum UV index in March in Arlington Heights, Illinois, is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Arlington Heights, IL

Average temperature in March - Arlington Heights, IL
  • Average high temperature in March: 43.9°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in March: 30.7°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in March
Arlington Heights, IL

Average pressure in March - Arlington Heights, IL
  • Average pressure in March: 30.09"Hg

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

Average wind speed in March
Arlington Heights, IL

Average wind speed in March - Arlington Heights, IL
  • Average wind speed in March: 9.4mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average humidity in March
Arlington Heights, IL

Average humidity in March - Arlington Heights, IL
  • Average humidity in March: 75%

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

Average rainfall in March
Arlington Heights, IL

Average rainfall in March - Arlington Heights, IL
  • Average rainfall in March: 1.93"

The wettest months (with the highest rainfall) are April and May (3.46").
The driest month (with the least rainfall) is November (1.57").

Average rainfall days in March
Arlington Heights, IL

Average rainfall days in March - Arlington Heights, IL
  • Average rainfall days in March: 11.9 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (5.8 days).

Average snowfall in March
Arlington Heights, IL

Average snowfall in March - Arlington Heights, IL
  • Average snowfall in March: 1.61"

The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in March
Arlington Heights, IL

Average snowfall days in March - Arlington Heights, IL
  • Average snowfall days in March: 6.6 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in March /
Average sunshine in March
Arlington Heights, IL

Average daylight in March / Average sunshine in March - Arlington Heights, IL
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in March: 5h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in March
Arlington Heights, IL

Average sunshine days in March - Arlington Heights, IL
  • Average sunshine days in March: 13.4 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in March
Arlington Heights, IL

Average UV index in March - Arlington Heights, IL
  • Average UV index in March: 2

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in March
Arlington Heights, IL

Average cloud cover in March - Arlington Heights, IL
  • Average cloud cover in March: 52

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 30).

Average visibility in March
Arlington Heights, IL

Average visibility in March - Arlington Heights, IL
  • Average visibility in March: 6mi

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

Arlington Heights, Illinois, USA

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