July weather forecast
Union, WA

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Weather in July

July is a warm summer month in Union, Washington, with an average temperature varying between 75.9°F (24.4°C) and 48.9°F (9.4°C).

Temperature

Union experiences a minor temperature shift with the start of July, with average high-temperatures moving from a pleasant 68.5°F (20.3°C) in June to a warm 75.9°F (24.4°C). Union's July nights represent a significant downturn from the day's heat, with an average temperature of 48.9°F (9.4°C).

Humidity

The least humid month is July, with an average relative humidity of 72%.

Rainfall

The month with the least rainfall is July, when the rain falls for 7.1 days and typically collects 0.43" (11mm) of precipitation.

Snowfall

In Union, snow does not fall in April through October.

Daylight

In July, the average length of the day in Union is 15h and 29min.
On the first day of July in Union, sunrise is at 5:20 am and sunset at 9:12 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:46 pm PDT.

Sunshine

In Union, the average sunshine in July is 10.6h.

UV index

The months with the highest UV index are June and July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in July transforms into the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in July in Union?

During July, Union experiences an average high-temperature of 75.9°F (24.4°C) and a low-temperature of 48.9°F (9.4°C).

What is the least humid month in Union?

The least humid month is July, with an average relative humidity of 72%.

What is the average humidity in July in Union?

In Union, the average relative humidity in July is 72%.

What is the driest month in Union?

The month with the least rainfall in Union is July, when the rain falls for 7.1 days and typically collects 0.43" (11mm) of precipitation.

How many days does it rain in July in Union?

In Union, Washington, during July, the rain falls for 7.1 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow in Union?

April through October are months without snowfall.

What is the average length of the day in July in Union?

In July, the average day length is 15h and 29min.

When are sunrise and sunset in July in Union?

On the first day of July in Union, Washington, sunrise is at 5:20 am and sunset at 9:12 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:46 pm PDT.

How many hours of sunshine does Union have in July?

The average sunshine duration in July is 10.6h.

When is the highest UV index in Union?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Union.

How high is the UV index in July in Union?

In July, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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 July
Union, WA

Average temperature in July - Union, WA
  • Average high temperature in July: 75.9°F

The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in July: 48.9°F

The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is February (32.7°F).

Average pressure in July
Union, WA

Average pressure in July - Union, WA
  • Average pressure in July: 30.06"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

Average wind speed in July
Union, WA

Average wind speed in July - Union, WA
  • Average wind speed in July: 3.7mph

The windiest month (with the highest average wind speed) is March (4.3mph).
The calmest month (with the lowest average wind speed) is September (3.4mph).

Average humidity in July
Union, WA

Average humidity in July - Union, WA
  • Average humidity in July: 72%

The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is July (72%).

Average rainfall in July
Union, WA

Average rainfall in July - Union, WA
  • Average rainfall in July: 0.43"

The wettest month (with the highest rainfall) is January (7.24").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in July
Union, WA

Average rainfall days in July - Union, WA
  • Average rainfall days in July: 7.1 days

The month with the highest number of rainy days is March (21.4 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in July
Union, WA

Average snowfall in July - Union, WA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (2.17").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Union, WA

Average snowfall days in July - Union, WA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July /
Average sunshine in July
Union, WA

Average daylight in July / Average sunshine in July - Union, WA
  • Average daylight in July: 15h and 3min

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 30min).

  • Average sunshine in July: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).

Average sunshine days in July
Union, WA

Average sunshine days in July - Union, WA
  • Average sunshine days in July: 21.7 days

The month with the most sunshine days is July (21.7 days).
The month with the least sunshine days is March (7.5 days).

Average UV index in July
Union, WA

Average UV index in July - Union, WA
  • Average UV index in July: 5

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

Average cloud cover in July
Union, WA

Average cloud cover in July - Union, WA
  • Average cloud cover in July: 30

The months with the most cloud cover are January and December (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 30).

Average visibility in July
Union, WA

Average visibility in July - Union, WA
  • Average visibility in July: 5mi

The months with the highest visibility are June, July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, October, November and December (4mi).

Union, Washington, USA

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