June weather forecast
Mountain Brook, WA

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Weather in June

The first month of the summer, June, is an agreeable month in Mountain Brook, Washington, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 68.7°F (20.4°C).

Temperature

June's arrival brings a modest temperature shift, moving from an enjoyable 62.8°F (17.1°C) in May to a pleasant 68.7°F (20.4°C). Mountain Brook, in the heat of June, registers a significant plunge to a mean of 46°F (7.8°C) during the nights.

Humidity

In June, the average relative humidity is 66%.

Rainfall

In Mountain Brook, Washington, during June, the rain falls for 8.6 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, in Mountain Brook, Washington, there are 152.5 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Mountain Brook.

Daylight

June has the longest days of the year in Mountain Brook, with an average of 15h and 42min of daylight.
On the first day of June, sunrise is at 5:18 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:59 pm PDT.

Sunshine

In June, the average sunshine is 10.8h.

UV index

In June, the average daily maximum UV index in Mountain Brook is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 5 in June translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the temperature in June in Mountain Brook?

June temperatures vary between a high-temperature of 68.7°F (20.4°C) and a low-temperature of 46°F (7.8°C).

What is the average humidity in June in Mountain Brook?

In June, the average relative humidity in Mountain Brook, Washington, is 66%.

How many days does it rain in June in Mountain Brook?

In Mountain Brook, in June, during 8.6 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

When it does not snow in Mountain Brook?

May through October are months without snowfall.

When are the longest days in Mountain Brook?

The month with the longest days is June, with an average of 15h and 42min of daylight.

How many hours of daylight does Mountain Brook have in June?

In Mountain Brook, the average day length in June is 15h and 40min.

When are sunrise and sunset in June in Mountain Brook?

On the first day of June, sunrise is at 5:18 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:59 pm PDT.

How many hours of sunshine does Mountain Brook have in June?

The average sunshine duration in June is 10.8h.

How high is the UV index in June in Mountain Brook?

The average daily maximum UV index in June is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Mountain Brook, WA

Average temperature in June - Mountain Brook, WA
  • Average high temperature in June: 68.7°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (35.2°F).

  • Average low temperature in June: 46°F

The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (26.1°F).

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Average pressure in June
Mountain Brook, WA

Average pressure in June - Mountain Brook, WA
  • Average pressure in June: 29.99"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).

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Average wind speed in June
Mountain Brook, WA

Average wind speed in June - Mountain Brook, WA
  • Average wind speed in June: 6.4mph

The windiest month (with the highest average wind speed) is June (6.4mph).
The calmest month (with the lowest average wind speed) is October (4.8mph).

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Average humidity in June
Mountain Brook, WA

Average humidity in June - Mountain Brook, WA
  • Average humidity in June: 66%

The months with the highest relative humidity are January, February and December (88%).
The months with the lowest relative humidity are July and August (58%).

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Average rainfall in June
Mountain Brook, WA

Average rainfall in June - Mountain Brook, WA
  • Average rainfall in June: 0.83"

The wettest month (with the highest rainfall) is January (4.88").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in June
Mountain Brook, WA

Average rainfall days in June - Mountain Brook, WA
  • Average rainfall days in June: 8.6 days

The month with the highest number of rainy days is March (19.4 days).
The month with the least rainy days is August (3.8 days).

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Average snowfall in June
Mountain Brook, WA

Average snowfall in June - Mountain Brook, WA
  • Average snowfall in June: 0"

The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in June
Mountain Brook, WA

Average snowfall days in June - Mountain Brook, WA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is December (6.5 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 June /
Average sunshine in June
Mountain Brook, WA

Average daylight in June / Average sunshine in June - Mountain Brook, WA
  • Average daylight in June: 15h and 4min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in June: 10h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in June
Mountain Brook, WA

Average sunshine days in June - Mountain Brook, WA
  • Average sunshine days in June: 17.7 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in June
Mountain Brook, WA

Average UV index in June - Mountain Brook, WA
  • Average UV index in June: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in June
Mountain Brook, WA

Average cloud cover in June - Mountain Brook, WA
  • Average cloud cover in June: 32

The months with the most cloud cover are January and February (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 15).

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Average visibility in June
Mountain Brook, WA

Average visibility in June - Mountain Brook, WA
  • Average visibility in June: 6mi

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

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Mountain Brook, Washington, USA

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