March weather forecast
Mount Vernon, OR

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Weather in March

March, the first month of the spring in Mount Vernon, is also a wintry month, with an average temperature ranging between max 42.6°F (5.9°C) and min 26.2°F (-3.2°C).

Temperature

The average high-temperature mildly increases in March, edging from a cold 36.3°F (2.4°C) in February to a still icy 42.6°F (5.9°C). In Mount Vernon, the March nights cool down to an average low of 26.2°F (-3.2°C).

Humidity

In March, the average relative humidity in Mount Vernon is 80%.

Rainfall

In March, in Mount Vernon, the rain falls for 17.3 days. Throughout March, 2.17" (55mm) of precipitation is accumulated. In Mount Vernon, during the entire year, the rain falls for 127.7 days and collects up to 17.09" (434mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Mount Vernon. In Mount Vernon, Oregon, during March, snow falls for 9.6 days and regularly aggregates up to 5.83" (148mm) of snow. Throughout the year, in Mount Vernon, there are 62.5 snowfall days, and 39.17" (995mm) of snow is accumulated.

Daylight

In March, the average length of the day is 11h and 58min.
On the first day of the month, sunrise is at 6:32 am and sunset at 5:45 pm PST. On the last day of March, in Mount Vernon, sunrise is at 6:37 am and sunset at 7:23 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.

Sunshine

The average sunshine in March in Mount Vernon is 7.4h.

UV index

The months with the lowest UV index in Mount Vernon are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 2 in March translates into these instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

Is March cold in Mount Vernon?

An average high-temperature, in March, in Mount Vernon, is 42.6°F (5.9°C) and the average low-temperature is 26.2°F (-3.2°C).

What is the average humidity in March in Mount Vernon?

In Mount Vernon, Oregon, the average relative humidity in March is 80%.

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

In March, in Mount Vernon, the rain falls for 17.3 days. Throughout March, 2.17" (55mm) of precipitation is accumulated.

How much does it snow in Mount Vernon in March?

In Mount Vernon, during March, snow falls for 9.6 days and regularly aggregates up to 5.83" (148mm) of snow.

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

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

When are sunrise and sunset in March in Mount Vernon?

On the first day of March in Mount Vernon, sunrise is at 6:32 am and sunset at 5:45 pm PST. On the last day of the month, sunrise is at 6:37 am and sunset at 7:23 pm PDT.

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, and the time zone changes from PST to PDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How long on average sun shines in March in Mount Vernon?

In Mount Vernon, the average sunshine duration in March is 7.4h.

What is the month with the lowest UV index in Mount Vernon?

The months with the lowest UV index in Mount Vernon, Oregon, are January through March, October through December, with an average maximum UV index of 2.

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

The average daily maximum UV index in March in Mount Vernon, Oregon, is 2. A UV Index reading of 2, and below, represents a low health threat 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, OR

Average temperature in March - Mount Vernon, OR
  • Average high temperature in March: 42.6°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (33.4°F).

  • Average low temperature in March: 26.2°F

The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).

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Average pressure in March
Mount Vernon, OR

Average pressure in March - Mount Vernon, OR
  • Average pressure in March: 30.04"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in March
Mount Vernon, OR

Average wind speed in March - Mount Vernon, OR
  • Average wind speed in March: 6.1mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).

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Average humidity in March
Mount Vernon, OR

Average humidity in March - Mount Vernon, OR
  • Average humidity in March: 80%

The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is August (42%).

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Average rainfall in March
Mount Vernon, OR

Average rainfall in March - Mount Vernon, OR
  • Average rainfall in March: 2.17"

The wettest month (with the highest rainfall) is February (2.28").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in March
Mount Vernon, OR

Average rainfall days in March - Mount Vernon, OR
  • Average rainfall days in March: 17.3 days

The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (3.3 days).

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Average snowfall in March
Mount Vernon, OR

Average snowfall in March - Mount Vernon, OR
  • Average snowfall in March: 5.83"

The month with the highest snowfall is February (10.31").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in March
Mount Vernon, OR

Average snowfall days in March - Mount Vernon, OR
  • Average snowfall days in March: 9.6 days

The month with the highest number of snowfall days is December (14.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in March / Average sunshine in March - Mount Vernon, OR
  • Average daylight in March: 12h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in March: 7h and 2min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).

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Average sunshine days in March
Mount Vernon, OR

Average sunshine days in March - Mount Vernon, OR
  • Average sunshine days in March: 9.2 days

The month with the most sunshine days is July (24.9 days).
The month with the least sunshine days is February (9 days).

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Average UV index in March
Mount Vernon, OR

Average UV index in March - Mount Vernon, OR
  • Average UV index in March: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in March
Mount Vernon, OR

Average cloud cover in March - Mount Vernon, OR
  • Average cloud cover in March: 45

The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 9).

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Average visibility in March
Mount Vernon, OR

Average visibility in March - Mount Vernon, OR
  • Average visibility in March: 5mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Mount Vernon, Oregon, USA

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