July weather forecast
Walla Walla, WA

The small city of Walla Walla in Washington
The small city of Walla Walla in Washington

Weather in July

July, like June, in Walla, Washington, is a moderately hot summer month, with an average temperature varying between 59.2°F (15.1°C) and 84.7°F (29.3°C).

Temperature

July is the warmest month, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 59.2°F (15.1°C).

Heat index

The average heat index in July is computed to be 84°F (28.9°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, wind, clothing, and differences in body mass, height, and shape affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in July in Walla is 40%.

Rainfall

The month with the least rainfall in Walla is July, when the rain falls for 4.9 days and typically collects 0.35" (9mm) of precipitation.

Snowfall

May through August and October are months without snowfall in Walla, Washington.

Daylight

The average length of the day in July is 15h and 20min.
On the first day of July in Walla, Washington, sunrise is at 5:06 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:24 pm PDT.

Sunshine

In July, the average sunshine is 12h.

UV index

July is the month with the highest UV index in Walla, Washington, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in July transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the warmest month in Walla?

July is the warmest month in Walla, with an average high-temperature of 84.7°F (29.3°C) and an average low-temperature of 59.2°F (15.1°C).

What is the temperature in July in Walla?

In Walla, Washington, in July, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 59.2°F (15.1°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is computed to be 84°F (28.9°C).

What is the average humidity in July in Walla?

The average relative humidity in July is 40%.

What is the driest month in Walla?

July is the month with the least rainfall in Walla, Washington. Rain falls for 4.9 days and accumulates 0.35" (9mm) of precipitation.

How much does it rain in Walla in July?

In Walla, Washington, in July, it is raining for 4.9 days, with typically 0.35" (9mm) of accumulated precipitation.

When it does not snow in Walla?

In Walla, Washington, snow does not fall in May through August and October.

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

In Walla, Washington, the average day length in July is 15h and 20min.

When is the sunrise / sunset in July in Walla?

On the first day of July in Walla, Washington, sunrise is at 5:06 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:24 pm PDT.

How many hours of sunshine does Walla have in July?

The average sunshine duration in July in Walla is 12h.

When is the highest UV index in Walla?

The month with the highest UV index is July, with an average maximum UV index of 7.

What is the UV index intensity in July in Walla?

In Walla, the average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Walla Walla, WA

Average temperature in July - Walla Walla, WA
  • Average high temperature in July: 84.7°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (37.4°F).

  • Average low temperature in July: 59.2°F

The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (27°F).

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Average pressure in July
Walla Walla, WA

Average pressure in July - Walla Walla, WA
  • Average pressure in July: 29.92"Hg

The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

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Average wind speed in July
Walla Walla, WA

Average wind speed in July - Walla Walla, WA
  • Average wind speed in July: 6.5mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).

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Average humidity in July
Walla Walla, WA

Average humidity in July - Walla Walla, WA
  • Average humidity in July: 40%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in July
Walla Walla, WA

Average rainfall in July - Walla Walla, WA
  • Average rainfall in July: 0.35"

The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.35").

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Average rainfall days in July
Walla Walla, WA

Average rainfall days in July - Walla Walla, WA
  • Average rainfall days in July: 4.9 days

The month with the highest number of rainy days is March (17.4 days).
The month with the least rainy days is July (4.9 days).

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Average snowfall in July
Walla Walla, WA

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

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in July
Walla Walla, WA

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

The months with the highest number of snowfall days are February and December (6.1 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in July / Average sunshine in July - Walla Walla, WA
  • Average daylight in July: 15h and 20min

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 43min).

  • Average sunshine in July: 12h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in July
Walla Walla, WA

Average sunshine days in July - Walla Walla, WA
  • Average sunshine days in July: 24.4 days

The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is February (10 days).

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Average UV index in July
Walla Walla, WA

Average UV index in July - Walla Walla, WA
  • Average UV index in July: 7

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 July
Walla Walla, WA

Average cloud cover in July - Walla Walla, WA
  • Average cloud cover in July: 10

The months with the most cloud cover are January, February and December (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in July
Walla Walla, WA

Average visibility in July - Walla Walla, WA
  • Average visibility in July: 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).

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