March weather forecast
Onawa, IA

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Weather in March

The first month of the spring, March, is a frosty month in Onawa, Iowa, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 31.8°F (-0.1°C).

Temperature

Onawa sees a considerable increase in average high-temperatures during March, surging from a cold 32.2°F (0.1°C) in February to a chilly 47.8°F (8.8°C). Throughout March, an average low-temperature of 31.8°F (-0.1°C) is expected in Onawa.

Humidity

The average relative humidity in March in Onawa is 72%.

Rainfall

In March, the rain falls for 8.9 days. Throughout March, 1.38" (35mm) of precipitation is accumulated. Throughout the year, there are 117.6 rainfall days, and 21.89" (556mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Onawa are January through April, October through December. In March, in Onawa, it is snowing for 4.5 days. Throughout March, 1.89" (48mm) of snow is accumulated. In Onawa, during the entire year, snow falls for 32.9 days and aggregates up to 11.69" (297mm) of snow.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 6:57 am and sunset at 6:15 pm CST. On the last day of March, sunrise is at 7:07 am and sunset at 7:49 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 Onawa, Iowa, the average sunshine in March is 6.4h.

UV index

In March, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 3 during March, leads to the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are March temperatures in Onawa?

In Onawa, 47.8°F (8.8°C) is the average high-temperature and 31.8°F (-0.1°C) is the average low-temperature during March.

What is the average humidity in March in Onawa?

The average relative humidity in March is 72%.

How many days does it rain in March in Onawa?

In March, in Onawa, Iowa, the rain falls for 8.9 days. Throughout March, 1.38" (35mm) of precipitation is accumulated.

How many days does it snow in March in Onawa?

In Onawa, Iowa, in March, during 4.5 snowfall days, 1.89" (48mm) of snow is typically accumulated.

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

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

When is the sunrise / sunset in March in Onawa?

In March, on the first day of the month, sunrise is at 6:57 am and sunset at 6:15 pm CST. On the last day of the month, in Onawa, Iowa, sunrise is at 7:07 am and sunset at 7:49 pm CDT.

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

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

In Onawa, Iowa, the average sunshine duration in March is 6.4h.

What is the UV index reading in March in Onawa?

The average daily maximum UV index in March in Onawa is 3. A UV Index reading of 3 to 5 represents a medium 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
Onawa, IA

Average temperature in March - Onawa, IA
  • Average high temperature in March: 47.8°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 (28°F).

  • Average low temperature in March: 31.8°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in March
Onawa, IA

Average pressure in March - Onawa, 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).

Average wind speed in March
Onawa, IA

Average wind speed in March - Onawa, IA
  • Average wind speed in March: 10.6mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in March
Onawa, IA

Average humidity in March - Onawa, IA
  • Average humidity in March: 72%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).

Average rainfall in March
Onawa, IA

Average rainfall in March - Onawa, IA
  • Average rainfall in March: 1.38"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in March
Onawa, IA

Average rainfall days in March - Onawa, IA
  • Average rainfall days in March: 8.9 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in March
Onawa, IA

Average snowfall in March - Onawa, IA
  • Average snowfall in March: 1.89"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in March
Onawa, IA

Average snowfall days in March - Onawa, IA
  • Average snowfall days in March: 4.5 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in March /
Average sunshine in March
Onawa, IA

Average daylight in March / Average sunshine in March - Onawa, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in March
Onawa, IA

Average sunshine days in March - Onawa, IA
  • Average sunshine days in March: 17.9 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).

Average UV index in March
Onawa, IA

Average UV index in March - Onawa, IA
  • Average UV index in March: 3

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

Average cloud cover in March
Onawa, IA

Average cloud cover in March - Onawa, IA
  • Average cloud cover in March: 47

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in March
Onawa, IA

Average visibility in March - Onawa, 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).

Onawa, Iowa, USA

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