March weather forecast
Union, IL

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Weather in March

March, the first month of the spring in Union, is a frosty month, with an average temperature varying between 29.1°F (-1.6°C) and 43.7°F (6.5°C).

Temperature

March brings a rise in the average high-temperature, transitioning from February's subzero cold 30°F (-1.1°C) to a frosty 43.7°F (6.5°C). An average low-temperature of 29.1°F (-1.6°C) is observed during March nights.

Humidity

In March, the average relative humidity in Union is 78%.

Rainfall

In Union, in March, during 11.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 154.6 rainfall days, and 30.31" (770mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. In Union, in March, snow falls for 5.5 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, in Union, there are 44.9 snowfall days, and 17.24" (438mm) of snow is accumulated.

Daylight

The average length of the day in March in Union is 11h and 58min.
On the first day of March in Union, sunrise is at 6:27 am and sunset at 5:44 pm CST. On the last day of the month, sunrise is at 6:36 am and sunset at 7:19 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

In Union, the average sunshine in March is 6h.

UV index

In Union, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In March, a daily UV index of 3 turns into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is March in Union?

In March, in Union, the average high-temperature is 43.7°F (6.5°C), and the average low-temperature is 29.1°F (-1.6°C).

What is the average humidity in March in Union?

The average relative humidity in March in Union, Illinois, is 78%.

How much does it rain in Union in March?

In Union, during March, the rain falls for 11.5 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How much does it snow in Union in March?

In Union, Illinois, during March, snow falls for 5.5 days and regularly aggregates up to 1.85" (47mm) of snow.

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

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

When is the sunrise / sunset in March in Union?

In March, on the first day of the month, sunrise is at 6:27 am and sunset at 5:44 pm CST. On the last day of the month, sunrise is at 6:36 am and sunset at 7:19 pm CDT.

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

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

The average sunshine duration in March in Union, Illinois, is 6h.

What is the UV index intensity in March in Union?

In Union, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
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
Union, IL

Average temperature in March - Union, IL
  • Average high temperature in March: 43.7°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in March: 29.1°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in March
Union, IL

Average pressure in March - Union, 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
Union, IL

Average wind speed in March - Union, IL
  • Average wind speed in March: 9.5mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in March
Union, IL

Average humidity in March - Union, IL
  • Average humidity in March: 78%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (76%).

Average rainfall in March
Union, IL

Average rainfall in March - Union, IL
  • Average rainfall in March: 1.77"

The wettest month (with the highest rainfall) is June (4.21").
The driest months (with the least rainfall) are February and November (1.5").

Average rainfall days in March
Union, IL

Average rainfall days in March - Union, IL
  • Average rainfall days in March: 11.5 days

The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is February (4.8 days).

Average snowfall in March
Union, IL

Average snowfall in March - Union, IL
  • Average snowfall in March: 1.85"

The month with the highest snowfall is January (5.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in March
Union, IL

Average snowfall days in March - Union, IL
  • Average snowfall days in March: 5.5 days

The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in March / Average sunshine in March - Union, 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: 6h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in March
Union, IL

Average sunshine days in March - Union, IL
  • Average sunshine days in March: 15.2 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (9.5 days).

Average UV index in March
Union, IL

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in March
Union, IL

Average cloud cover in March - Union, IL
  • Average cloud cover in March: 51

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 35).

Average visibility in March
Union, IL

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

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

Union, Illinois, USA

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