March weather forecast
Iowa City, IA

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Golden and brown trees in a scenic, neat lawn near the mighty grandeur of the Old Capitol building, Iowa City
Golden and brown trees in a scenic, neat lawn near the mighty grandeur of the Old Capitol building, Iowa City

Weather in March

March ushers in the first breath of spring in Iowa City, with snowfall giving way to 2.09" (53mm) of rainfall. Temperatures start ascending from the frosty realms, nevertheless, frost still retains its grip during the nights. The increasingly longer daylight hours begin to breathe warmth back into the cityscape. Weather becomes more variable, often alternating between brisk winter days and milder, more welcoming spring-like conditions.

Temperature

As March begins, there is a noticeable increase in the average high-temperature, soaring from a cold 32°F (0°C) in February to a chilly 46.6°F (8.1°C). In the month of March, Iowa City experiences an average low-temperature of 31.6°F (-0.2°C).

Humidity

In March, the average relative humidity in Iowa City is 75%.

Rainfall

In March, in Iowa City, the rain falls for 11.5 days. Throughout March, 2.09" (53mm) of precipitation is accumulated. In Iowa City, during the entire year, the rain falls for 140.4 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In March, it is snowing for 4.9 days. Throughout March, 1.81" (46mm) of snow is accumulated. In Iowa City, during the entire year, snow falls for 37.7 days and aggregates up to 16.42" (417mm) of snow.

Daylight

The average length of the day in March in Iowa City is 11h and 58min.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:57 pm CST. On the last day of March, sunrise is at 6:49 am and sunset at 7:30 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 Iowa City, the average sunshine in March is 6.5h.

UV index

In March, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In March, the average maximum UV index of 3 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

What is the average March temperature?

In Iowa City, in March, the average high-temperature is 46.6°F (8.1°C), and the average low-temperature is 31.6°F (-0.2°C).

What is the average humidity in March?

In Iowa City, the average relative humidity in March is 75%.

How many days does it rain in March?

In Iowa City, in March, during 11.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How many days does it snow in March?

In March, it is snowing for 4.9 days. Throughout March, 1.81" (46mm) of snow is accumulated.

What is the average length of the day in March?

The average day length in March is 11h and 58min.

What time are sunrise and sunset in March?

In March, on the first day of the month, sunrise is at 6:39 am and sunset at 5:57 pm CST. On the last day of the month, sunrise is at 6:49 am and sunset at 7:30 pm CDT.

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

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 many hours of sunshine does Iowa City have in March?

In Iowa City, the average sunshine duration in March is 6.5h.

What is the UV index reading in March?

The average daily maximum UV index in March in Iowa City 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
Iowa City, IA

Average temperature in March - Iowa City, IA
  • Average high temperature in March: 46.6°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in March: 31.6°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in March
Iowa City, IA

Average pressure in March - Iowa City, IA
  • Average pressure in March: 30.08"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in March
Iowa City, IA

Average wind speed in March - Iowa City, IA
  • Average wind speed in March: 10.4mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

Average humidity in March
Iowa City, IA

Average humidity in March - Iowa City, IA
  • Average humidity in March: 75%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in March
Iowa City, IA

Average rainfall in March - Iowa City, IA
  • Average rainfall in March: 2.09"

The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and February (1.34").

Average rainfall days in March
Iowa City, IA

Average rainfall days in March - Iowa City, IA
  • Average rainfall days in March: 11.5 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is February (5 days).

Average snowfall in March
Iowa City, IA

Average snowfall in March - Iowa City, IA
  • Average snowfall in March: 1.81"

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
Iowa City, IA

Average snowfall days in March - Iowa City, IA
  • Average snowfall days in March: 4.9 days

The month with the highest number of snowfall days is January (10.9 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
Iowa City, IA

Average daylight in March / Average sunshine in March - Iowa 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 12min).

  • Average sunshine in March: 6h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in March
Iowa City, IA

Average sunshine days in March - Iowa City, IA
  • Average sunshine days in March: 14.6 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10 days).

Average UV index in March
Iowa City, IA

Average UV index in March - Iowa 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).

Average cloud cover in March
Iowa City, IA

Average cloud cover in March - Iowa City, IA
  • Average cloud cover in March: 49

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in March
Iowa City, IA

Average visibility in March - Iowa City, IA
  • Average visibility in March: 6mi

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

Iowa City, Iowa, USA

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