June weather forecast
Mount Vernon, WA

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Weather in June

June sets the stage for summer in Mount Vernon, with the warmer scale of temperature ranging from 49.3°F (9.6°C) to 63.9°F (17.7°C). This increment in temperature is accompanied by a diminishing intensity of rainfall. With just 1.54" (39mm) of rainfall over 12.4 days, June is relatively dry compared to the preceding months. The longer duration of sunshine - 9.2 hours on average - contributes to the overall climate. The gentle wind sweeps at an average speed of 4.4mph (7.1km/h).

Temperature

June's arrival brings an average high-temperature of a comfortable 63.9°F (17.7°C), slightly deviating from May's 60.3°F (15.7°C). Mount Vernon, in the month of June, anticipates a consistent average low-temperature of 49.3°F (9.6°C).

Humidity

In June, the average relative humidity is 77%.

Rainfall

In Mount Vernon, Washington, in June, it is raining for 12.4 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 185.2 rainfall days, and 34.72" (882mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

June has the longest days of the year, with an average of 16h and 0min of daylight.
On the first day of June in Mount Vernon, sunrise is at 5:11 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 9:14 pm PDT.

Sunshine

The average sunshine in June is 9.2h.

UV index

The average daily maximum UV index in June is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In June, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Around midday, solar radiation is most harmful; hence, exposure should be limited. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Updated: Jun 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mount Vernon in June?

In Mount Vernon, in June, the average high-temperature is 63.9°F (17.7°C), and the average low-temperature is 49.3°F (9.6°C).

What is the average humidity in June?

In June, the average relative humidity is 77%.

How much does it rain in Mount Vernon in June?

In Mount Vernon, in June, during 12.4 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

When it does not snow?

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

When are the longest days?

June has the longest days of the year, with an average of 16h and 0min of daylight.

How many hours of daylight does Mount Vernon have in June?

In Mount Vernon, the average day length in June is 16h and 2min.

What time are sunrise and sunset in June?

On the first day of June, sunrise is at 5:11 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 9:14 pm PDT.

How many hours of sunshine does Mount Vernon have in June?

The average sunshine duration in June is 9.2h.

What is the UV index intensity in June?

In Mount Vernon, the average daily maximum UV index in June is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Mount Vernon, WA

Average temperature in June - Mount Vernon, WA
  • Average high temperature in June: 63.9°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 June: 49.3°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).

Average pressure in June
Mount Vernon, WA

Average pressure in June - Mount Vernon, WA
  • Average pressure in June: 30.02"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).

Average wind speed in June
Mount Vernon, WA

Average wind speed in June - Mount Vernon, WA
  • Average wind speed in June: 4.4mph

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).

Average humidity in June
Mount Vernon, WA

Average humidity in June - Mount Vernon, WA
  • Average humidity in June: 77%

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

Average rainfall in June
Mount Vernon, WA

Average rainfall in June - Mount Vernon, WA
  • Average rainfall in June: 1.54"

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

Average rainfall days in June
Mount Vernon, WA

Average rainfall days in June - Mount Vernon, WA
  • Average rainfall days in June: 12.4 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).

Average snowfall in June
Mount Vernon, WA

Average snowfall in June - Mount Vernon, WA
  • Average snowfall in June: 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").

Average snowfall days in June
Mount Vernon, WA

Average snowfall days in June - Mount Vernon, WA
  • Average snowfall days in June: 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).

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

Average daylight in June / Average sunshine in June - Mount Vernon, WA
  • Average daylight in June: 16h and 0min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in June: 9h and 1min

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).

Average sunshine days in June
Mount Vernon, WA

Average sunshine days in June - Mount Vernon, WA
  • Average sunshine days in June: 15 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).

Average UV index in June
Mount Vernon, WA

Average UV index in June - Mount Vernon, WA
  • Average UV index in June: 4

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).

Average cloud cover in June
Mount Vernon, WA

Average cloud cover in June - Mount Vernon, WA
  • Average cloud cover in June: 42

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

Average visibility in June
Mount Vernon, WA

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

Mount Vernon, Washington, USA

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