June weather forecast
Sumner, WA

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Weather in June

The first month of the summer, June, is still a refreshing month in Sumner, Washington, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 45.1°F (7.3°C).

Temperature

The transition into June notes an average high-temperature of a still comfortable 67.3°F (19.6°C), revealing a mild distinction from the 62.6°F (17°C) in May. Contrasting the daytime warmth, Sumner's June nights cool down to an average of 45.1°F (7.3°C).

Humidity

In June, the average relative humidity is 75%.

Rainfall

In Sumner, in June, it is raining for 13.3 days, with typically 1.54" (39mm) of accumulated precipitation. In Sumner, during the entire year, the rain falls for 185 days and collects up to 35.71" (907mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

With an average of 15h and 54min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 5:16 am and sunset at 8:57 pm. On the last day of June, sunrise is at 5:17 am and sunset at 9:08 pm PDT.

Sunshine

The average sunshine in June is 9.4h.

UV index

The average daily maximum UV index in June is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 4 in June translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average June temperature?

An average high-temperature, in June, in Sumner, is 67.3°F (19.6°C) and the average low-temperature is 45.1°F (7.3°C).

What is the average humidity in June?

The average relative humidity in June is 75%.

How much does it rain in June?

In June, the rain falls for 13.3 days. Throughout June, 1.54" (39mm) of precipitation is accumulated.

When it does not snow?

In Sumner, Washington, snow does not fall in May through October.

When are the longest days in Sumner?

June has the longest days of the year, with an average of 15h and 54min of daylight.

How many hours of daylight does Sumner have in June?

In June, the average day length is 15h and 52min.

When is the sunrise / sunset in June in Sumner?

On the first day of June, sunrise is at 5:16 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 9:08 pm PDT.

How long on average sun shines in June?

The average sunshine duration in June is 9.4h.

What is the UV index reading in June?

In June, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Sumner, WA

Average temperature in June - Sumner, WA
  • Average high temperature in June: 67.3°F

The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (41.4°F).

  • Average low temperature in June: 45.1°F

The month with the highest average low temperature is August (50.9°F).
The coldest month (with the lowest average low temperature) is December (32°F).

Average pressure in June
Sumner, WA

Average pressure in June - Sumner, WA
  • Average pressure in June: 30.02"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in June
Sumner, WA

Average wind speed in June - Sumner, WA
  • Average wind speed in June: 3.8mph

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

Average humidity in June
Sumner, WA

Average humidity in June - Sumner, WA
  • Average humidity in June: 75%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are July and August (70%).

Average rainfall in June
Sumner, WA

Average rainfall in June - Sumner, WA
  • Average rainfall in June: 1.54"

The wettest month (with the highest rainfall) is December (5.35").
The driest month (with the least rainfall) is July (0.51").

Average rainfall days in June
Sumner, WA

Average rainfall days in June - Sumner, WA
  • Average rainfall days in June: 13.3 days

The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is August (6.8 days).

Average snowfall in June
Sumner, WA

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

The month with the highest snowfall is February (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in June
Sumner, WA

Average snowfall days in June - Sumner, WA
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (5.3 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
Sumner, WA

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

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in June: 9h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).

Average sunshine days in June
Sumner, WA

Average sunshine days in June - Sumner, WA
  • Average sunshine days in June: 13.8 days

The month with the most sunshine days is August (22 days).
The month with the least sunshine days is February (8.2 days).

Average UV index in June
Sumner, WA

Average UV index in June - Sumner, 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, October, November and December (UV index 2).

Average cloud cover in June
Sumner, WA

Average cloud cover in June - Sumner, WA
  • Average cloud cover in June: 44

The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in June
Sumner, WA

Average visibility in June - Sumner, WA
  • Average visibility in June: 5mi

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

Sumner, Washington, USA

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