March weather forecast
Mount Vernon, IA

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Weather in March

March, the first month of the spring in Mount Vernon, is a chilly month, with an average temperature varying between 45.5°F (7.5°C) and 30.7°F (-0.7°C).

Temperature

The average high-temperature exhibits a considerable increase in March, surging from a freezing cold 30.6°F (-0.8°C) in February to a chilly 45.5°F (7.5°C). An average minimum temperature of 30.7°F (-0.7°C) marks the month of March.

Humidity

In Mount Vernon, the average relative humidity in March is 77%.

Rainfall

In Mount Vernon, in March, it is raining for 12.1 days, with typically 2.05" (52mm) of accumulated precipitation. In Mount Vernon, during the entire year, the rain falls for 147.9 days and collects up to 31.57" (802mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Mount Vernon, during March, snow falls for 6.1 days and regularly aggregates up to 2.01" (51mm) of snow. In Mount Vernon, during the entire year, snow falls for 44 days and aggregates up to 18.35" (466mm) of snow.

Daylight

In Mount Vernon, the average length of the day in March is 11h and 58min.
On the first day of the month, sunrise is at 6:39 am and sunset at 5:56 pm CST. On the last day of March, sunrise is at 6:48 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 Mount Vernon, the average sunshine in March is 6.3h.

UV index

In Mount Vernon, Iowa, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 3 in March interprets into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What are the temperatures in Mount Vernon in March?

In March, in Mount Vernon, the average high-temperature is 45.5°F (7.5°C), and the average low-temperature is 30.7°F (-0.7°C).

What is the average humidity in March in Mount Vernon?

In Mount Vernon, Iowa, the average relative humidity in March is 77%.

How many days does it rain in March in Mount Vernon?

In Mount Vernon, Iowa, in March, during 12.1 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

How much does it snow in Mount Vernon in March?

In Mount Vernon, Iowa, in March, during 6.1 snowfall days, 2.01" (51mm) of snow is typically accumulated.

What is the average length of the day in March in Mount Vernon?

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

What time are sunrise and sunset in March in Mount Vernon?

On the first day of March, sunrise is at 6:39 am and sunset at 5:56 pm CST. On the last day of the month, sunrise is at 6:48 am and sunset at 7:30 pm CDT.

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

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

In March, the average sunshine duration in Mount Vernon, Iowa, is 6.3h.

What is the UV index intensity in March in Mount Vernon?

In Mount Vernon, Iowa, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unsafe 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
Mount Vernon, IA

Average temperature in March - Mount Vernon, IA
  • Average high temperature in March: 45.5°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in March: 30.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

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Average pressure in March
Mount Vernon, IA

Average pressure in March - Mount Vernon, 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).

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Average wind speed in March
Mount Vernon, IA

Average wind speed in March - Mount Vernon, IA
  • Average wind speed in March: 10.5mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in March
Mount Vernon, IA

Average humidity in March - Mount Vernon, IA
  • Average humidity in March: 77%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in March
Mount Vernon, IA

Average rainfall in March - Mount Vernon, IA
  • Average rainfall in March: 2.05"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").

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Average rainfall days in March
Mount Vernon, IA

Average rainfall days in March - Mount Vernon, IA
  • Average rainfall days in March: 12.1 days

The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).

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Average snowfall in March
Mount Vernon, IA

Average snowfall in March - Mount Vernon, IA
  • Average snowfall in March: 2.01"

The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in March
Mount Vernon, IA

Average snowfall days in March - Mount Vernon, IA
  • Average snowfall days in March: 6.1 days

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in March /
Average sunshine in March
Mount Vernon, IA

Average daylight in March / Average sunshine in March - Mount Vernon, 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 months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in March
Mount Vernon, IA

Average sunshine days in March - Mount Vernon, IA
  • Average sunshine days in March: 13.9 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).

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Average UV index in March
Mount Vernon, IA

Average UV index in March - Mount Vernon, IA
  • Average UV index in March: 3

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in March
Mount Vernon, IA

Average cloud cover in March - Mount Vernon, IA
  • Average cloud cover in March: 50

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in March
Mount Vernon, IA

Average visibility in March - Mount Vernon, 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).

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Mount Vernon, Iowa, USA

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