October weather forecast
Mount Vernon, WA

Weather in October

October, the same as September, in Mount Vernon, Washington, is another mild autumn month, with an average temperature varying between 55.8°F (13.2°C) and 46.2°F (7.9°C).

Temperature

In Mount Vernon, Washington, the average high-temperature in October slightly decreases from a comfortable 64°F (17.8°C) in September to a moderate 55.8°F (13.2°C). In Mount Vernon, the average low-temperature is 46.2°F (7.9°C).

Humidity

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

Rainfall

In Mount Vernon, in October, it is raining for 17 days, with typically 3.7" (94mm) of accumulated precipitation. Throughout the year, in Mount Vernon, there are 185.2 rainfall days, and 34.72" (882mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In October, the average length of the day is 10h and 47min.
On the first day of October in Mount Vernon, sunrise is at 7:08 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:52 pm PDT.

Sunshine

The average sunshine in October in Mount Vernon is 5.4h.

UV index

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 3 in October transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in October in Mount Vernon?

The average high-temperature, in October, in Mount Vernon, is 55.8°F (13.2°C), while the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in October in Mount Vernon?

In October, the average relative humidity is 80%.

How much does it rain in Mount Vernon in October?

In October, in Mount Vernon, the rain falls for 17 days. Throughout October, 3.7" (94mm) of precipitation is accumulated.

When it does not snow in Mount Vernon?

In Mount Vernon, snow does not fall in May through October.

Does it snow in Mount Vernon in October?

In Mount Vernon, in October, it doesn't snow. In November, it regularly snows.

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

In Mount Vernon, Washington, the average day length in October is 10h and 47min.

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

In October, on the first day of the month, sunrise is at 7:08 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:52 pm PDT.

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

In October, the average sunshine duration is 5.4h.

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

In Mount Vernon, the average daily maximum UV index in October is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Mount Vernon, WA

Average temperature in October - Mount Vernon, WA
  • Average high temperature in October: 55.8°F

The warmest months (with the highest average high temperature) are July and August (68.4°F).
The month with the lowest average high temperature is December (42.6°F).

  • Average low temperature in October: 46.2°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).

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Average pressure in October
Mount Vernon, WA

Average pressure in October - Mount Vernon, WA
  • Average pressure in October: 30.03"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

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Average wind speed in October
Mount Vernon, WA

Average wind speed in October - Mount Vernon, WA
  • Average wind speed in October: 6mph

The windiest month (with the highest average wind speed) is November (7.5mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in October
Mount Vernon, WA

Average humidity in October - Mount Vernon, WA
  • Average humidity in October: 80%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is July (75%).

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Average rainfall in October
Mount Vernon, WA

Average rainfall in October - Mount Vernon, WA
  • Average rainfall in October: 3.7"

The wettest month (with the highest rainfall) is November (4.96").
The driest month (with the least rainfall) is July (0.63").

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Average rainfall days in October
Mount Vernon, WA

Average rainfall days in October - Mount Vernon, WA
  • Average rainfall days in October: 17 days

The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (7.2 days).

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Average snowfall in October
Mount Vernon, WA

Average snowfall in October - Mount Vernon, WA
  • Average snowfall in October: 0"

The month with the highest snowfall is February (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in October
Mount Vernon, WA

Average snowfall days in October - Mount Vernon, WA
  • Average snowfall days in October: 0 days

The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in October /
Average sunshine in October
Mount Vernon, WA

Average daylight in October / Average sunshine in October - Mount Vernon, WA
  • Average daylight in October: 10h and 47min

The month with the longest days is June (Average daylight: 16h and 2min).
The month with the shortest days is December (Average daylight: 8h and 23min).

  • Average sunshine in October: 5h and 24min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

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Average sunshine days in October
Mount Vernon, WA

Average sunshine days in October - Mount Vernon, WA
  • Average sunshine days in October: 12.6 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.1 days).

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Average UV index in October
Mount Vernon, WA

Average UV index in October - Mount Vernon, WA
  • Average UV index in October: 3

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in October
Mount Vernon, WA

Average cloud cover in October - Mount Vernon, WA
  • Average cloud cover in October: 44

The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).

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Average visibility in October
Mount Vernon, WA

Average visibility in October - Mount Vernon, WA
  • Average visibility in October: 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).

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