March weather forecast
Sioux City, IA

englishespañol中文
Share
Panorama of the vast Sioux City, Iowa
Panorama of the vast Sioux City, Iowa

Weather in March

March, a transitional period, often sees some of the most variable weather in Sioux City. While higher temperature averages signify the welcome arrival of spring, occasional cold snaps remain a possibility. In terms of precipitation, both rainy and snowy days become less frequent, further reiterating the general shift in climate. The longer daytime hours, with 12 hours of daylight, bring with it the reemergence of the city's vibrant flora. March's weather invites residents of Sioux City to breathe in the rejuvenation associated with spring.

Temperature

A clear escalation in the average high-temperature is witnessed with the onset of March, advancing from a subzero cold 31.1°F (-0.5°C) in February to a frosty 46.8°F (8.2°C). Throughout the month of March, the nighttime temperature in Sioux City dips to an average of 30.9°F (-0.6°C).

Humidity

In Sioux City, the average relative humidity in March is 73%.

Rainfall

In Sioux City, in March, it is raining for 8.3 days, with typically 0.87" (22mm) of accumulated precipitation. In Sioux City, during the entire year, the rain falls for 102.3 days and collects up to 12.91" (328mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Sioux City, in March, snow falls for 4.2 days, with typically accumulated 0.94" (24mm) of snow. Throughout the year, in Sioux City, there are 31.1 snowfall days, and 6.85" (174mm) of snow is accumulated.

Daylight

The average length of the day in March in Sioux City is 11h and 58min.
On the first day of March in Sioux City, sunrise is at 6:59 am and sunset at 6:15 pm CST. On the last day of the month, sunrise is at 7:08 am and sunset at 7:50 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 Sioux City is 6.4h.

UV index

The average daily maximum UV index in March in Sioux City 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, the average maximum UV index of 3 translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
[Resources]

Frequently asked questions

What is the usual temperature for Sioux City in March?

The average high-temperature, in March, in Sioux City, is 46.8°F (8.2°C), while the average low-temperature is 30.9°F (-0.6°C).

What is the average humidity in March in Sioux City?

The average relative humidity in March is 73%.

How many days does it rain in March in Sioux City?

In Sioux City, in March, during 8.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

How much does it snow in Sioux City in March?

In Sioux City, Iowa, in March, during 4.2 snowfall days, 0.94" (24mm) of snow is typically accumulated.

How many hours of daylight does Sioux City have in March?

In Sioux City, Iowa, the average day length in March is 11h and 58min.

When is the sunrise / sunset in March in Sioux City?

In March, on the first day of the month, sunrise is at 6:59 am and sunset at 6:15 pm CST. On the last day of the month, in Sioux City, sunrise is at 7:08 am and sunset at 7:50 pm CDT.

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

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

The average sunshine duration in March is 6.4h.

What is the UV index intensity in March in Sioux City?

In March, the average daily maximum UV index in Sioux City, Iowa, is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's 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
Sioux City, IA

Average temperature in March - Sioux City, IA
  • Average high temperature in March: 46.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in March: 30.9°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

[Resources]

Average pressure in March
Sioux City, IA

Average pressure in March - Sioux City, IA
  • Average pressure in March: 30.06"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

[Resources]

Average wind speed in March
Sioux City, IA

Average wind speed in March - Sioux City, IA
  • Average wind speed in March: 10.7mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

[Resources]

Average humidity in March
Sioux City, IA

Average humidity in March - Sioux City, IA
  • Average humidity in March: 73%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).

[Resources]

Average rainfall in March
Sioux City, IA

Average rainfall in March - Sioux City, IA
  • Average rainfall in March: 0.87"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").

[Resources]

Average rainfall days in March
Sioux City, IA

Average rainfall days in March - Sioux City, IA
  • Average rainfall days in March: 8.3 days

The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).

[Resources]

Average snowfall in March
Sioux City, IA

Average snowfall in March - Sioux City, IA
  • Average snowfall in March: 0.94"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in March
Sioux City, IA

Average snowfall days in March - Sioux City, IA
  • Average snowfall days in March: 4.2 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

Average daylight in March /
Average sunshine in March
Sioux City, IA

Average daylight in March / Average sunshine in March - Sioux City, IA
  • 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 6min).

  • Average sunshine in March: 6h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days in March
Sioux City, IA

Average sunshine days in March - Sioux City, IA
  • Average sunshine days in March: 17.5 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).

[Resources]

Average UV index in March
Sioux City, IA

Average UV index in March - Sioux City, IA
  • Average UV index in March: 3

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

[Resources]

Average cloud cover in March
Sioux City, IA

Average cloud cover in March - Sioux City, IA
  • Average cloud cover in March: 46

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).

[Resources]

Average visibility in March
Sioux City, IA

Average visibility in March - Sioux City, IA
  • 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).

[Resources]

Sioux City, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location