June weather forecast
Mattawa, WA

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Weather in June

June, the first month of the summer in Mattawa, is a warm month, with an average temperature varying between 78.6°F (25.9°C) and 54.1°F (12.3°C).

Temperature

The beginning of June signals a minor rise in the average high-temperature, moving from an agreeable 71.2°F (21.8°C) in May to a moderately hot 78.6°F (25.9°C). With a notable disparity from daily peak temperatures, the average low-temperature in Mattawa settles at a cool 54.1°F (12.3°C) throughout June.

Humidity

In June, the average relative humidity in Mattawa is 45%.

Rainfall

In Mattawa, during June, the rain falls for 5.5 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 86.4 rainfall days, and 6.38" (162mm) of precipitation is accumulated.

Snowfall

May through August and October are months without snowfall.

Daylight

The month with the longest days is June, with an average of 15h and 48min of daylight.
On the first day of the month, sunrise is at 5:08 am and sunset at 8:46 pm. On the last day of June, in Mattawa, sunrise is at 5:09 am and sunset at 8:57 pm PDT.

Sunshine

In June, the average sunshine is 11.5h.

UV index

The average daily maximum UV index in June in Mattawa is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during June morphs into the following directions:
Ward off overexposure. Defence against solar harm is crucial. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the usual temperature for Mattawa in June?

The average high-temperature, in June, in Mattawa, is 78.6°F (25.9°C), while the average low-temperature is 54.1°F (12.3°C).

What is the average humidity in June in Mattawa?

In June, the average relative humidity in Mattawa is 45%.

How many days does it rain in June in Mattawa?

In June, in Mattawa, the rain falls for 5.5 days. Throughout June, 0.43" (11mm) of precipitation is accumulated.

When it does not snow in Mattawa?

May through August and October are months without snowfall in Mattawa.

When are the longest days in Mattawa?

The month with the longest days in Mattawa, Washington, is June, with an average of 15h and 48min of daylight.

How many hours of daylight does Mattawa have in June?

In June, the average day length in Mattawa, Washington, is 15h and 47min.

What time are sunrise and sunset in June in Mattawa?

In June, on the first day of the month, sunrise is at 5:08 am and sunset at 8:46 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:57 pm PDT.

How many hours of sunshine does Mattawa have in June?

In Mattawa, Washington, the average sunshine duration in June is 11.5h.

What is the UV index intensity in June in Mattawa?

The average daily maximum UV index in June in Mattawa, Washington, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to 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
Mattawa, WA

Average temperature in June - Mattawa, WA
  • Average high temperature in June: 78.6°F

The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (34.5°F).

  • Average low temperature in June: 54.1°F

The month with the highest average low temperature is August (61.5°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

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Average pressure in June
Mattawa, WA

Average pressure in June - Mattawa, WA
  • Average pressure in June: 29.93"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in June
Mattawa, WA

Average wind speed in June - Mattawa, WA
  • Average wind speed in June: 7.2mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

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Average humidity in June
Mattawa, WA

Average humidity in June - Mattawa, WA
  • Average humidity in June: 45%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in June
Mattawa, WA

Average rainfall in June - Mattawa, WA
  • Average rainfall in June: 0.43"

The wettest months (with the highest rainfall) are January and December (0.87").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in June
Mattawa, WA

Average rainfall days in June - Mattawa, WA
  • Average rainfall days in June: 5.5 days

The month with the highest number of rainy days is March (10.6 days).
The month with the least rainy days is August (3.5 days).

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Average snowfall in June
Mattawa, WA

Average snowfall in June - Mattawa, WA
  • Average snowfall in June: 0"

The month with the highest snowfall is December (3.43").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in June
Mattawa, WA

Average snowfall days in June - Mattawa, 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 and August (0 days).

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Average daylight in June /
Average sunshine in June
Mattawa, WA

Average daylight in June / Average sunshine in June - Mattawa, WA
  • Average daylight in June: 15h and 5min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in June: 11h and 3min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

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Average sunshine days in June
Mattawa, WA

Average sunshine days in June - Mattawa, WA
  • Average sunshine days in June: 23 days

The months with the most sunshine days are July and August (25.8 days).
The month with the least sunshine days is February (16 days).

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Average UV index in June
Mattawa, WA

Average UV index in June - Mattawa, WA
  • Average UV index in June: 6

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in June
Mattawa, WA

Average cloud cover in June - Mattawa, WA
  • Average cloud cover in June: 20

The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in June
Mattawa, WA

Average visibility in June - Mattawa, WA
  • Average visibility in June: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

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Mattawa, Washington, USA

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