July weather forecast
Index, WA

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Weather in July

July in Index, Washington, is an agreeable summer month, with an average temperature ranging between max 72.9°F (22.7°C) and min 46.6°F (8.1°C).

Temperature

With the onset of July, Index's weather sees a minor temperature rise, transitioning from a comfortable 64.9°F (18.3°C) in June to an agreeable 72.9°F (22.7°C). Index undergoes a major shift from daytime highs, averaging a chilly 46.6°F (8.1°C) during the night in July.

Humidity

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

Rainfall

In Index, in July, it is raining for 9.6 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Index, there are 200.6 rainfall days, and 51.65" (1312mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Index, Washington.

Daylight

The average length of the day in July in Index, Washington, is 15h and 33min.
On the first day of the month, sunrise is at 5:12 am and sunset at 9:08 pm. On the last day of July, in Index, sunrise is at 5:42 am and sunset at 8:42 pm PDT.

Sunshine

In Index, the average sunshine in July is 10.3h.

UV index

The month with the highest UV index is July, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 in July interprets into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What are the temperatures in Index in July?

The high-temperature, in July, in Index, is 72.9°F (22.7°C), while the low-temperature averages to 46.6°F (8.1°C).

What is the least humid month in Index?

July is the least humid month in Index, Washington, with an average relative humidity of 72%.

What is the average humidity in July in Index?

The average relative humidity in July in Index is 72%.

How many days does it rain in July in Index?

In July, in Index, Washington, the rain falls for 9.6 days. Throughout July, 0.83" (21mm) of precipitation is accumulated.

When it does not snow in Index?

May through October are months without snowfall in Index, Washington.

How many hours of daylight does Index have in July?

The average day length in July in Index, Washington, is 15h and 33min.

What time are sunrise and sunset in July in Index?

In July, on the first day of the month, sunrise is at 5:12 am and sunset at 9:08 pm. On the last day of the month, in Index, sunrise is at 5:42 am and sunset at 8:42 pm PDT.

How many hours of sunshine does Index have in July?

The average sunshine duration in July is 10.3h.

What is the month with the highest UV index in Index?

July is the month with the highest UV index, with an average maximum UV index of 5.

How high is the UV index in July in Index?

In July, the average daily maximum UV index in Index is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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 July
Index, WA

Average temperature in July - Index, WA
  • Average high temperature in July: 72.9°F

The warmest month (with the highest average high temperature) is August (73.4°F).
The month with the lowest average high temperature is December (38.3°F).

  • Average low temperature in July: 46.6°F

The month with the highest average low temperature is August (48°F).
The coldest month (with the lowest average low temperature) is December (28.6°F).

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Average pressure in July
Index, WA

Average pressure in July - Index, WA
  • Average pressure in July: 30.02"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

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Average wind speed in July
Index, WA

Average wind speed in July - Index, WA
  • Average wind speed in July: 3.4mph

The windiest month (with the highest average wind speed) is January (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).

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Average humidity in July
Index, WA

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

The months with the highest relative humidity are January, February and March (88%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in July
Index, WA

Average rainfall in July - Index, WA
  • Average rainfall in July: 0.83"

The wettest month (with the highest rainfall) is January (7.8").
The driest month (with the least rainfall) is August (0.79").

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Average rainfall days in July
Index, WA

Average rainfall days in July - Index, WA
  • Average rainfall days in July: 9.6 days

The month with the highest number of rainy days is March (22.3 days).
The month with the least rainy days is August (7.9 days).

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Average snowfall in July
Index, WA

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

The month with the highest snowfall is February (5.43").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Index, WA

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

The month with the highest number of snowfall days is February (5.2 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 July /
Average sunshine in July
Index, WA

Average daylight in July / Average sunshine in July - Index, WA
  • Average daylight in July: 15h and 4min

The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).

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Average sunshine days in July
Index, WA

Average sunshine days in July - Index, WA
  • Average sunshine days in July: 18.3 days

The month with the most sunshine days is August (19.9 days).
The month with the least sunshine days is March (7 days).

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Average UV index in July
Index, WA

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

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in July
Index, WA

Average cloud cover in July - Index, WA
  • Average cloud cover in July: 31

The months with the most cloud cover are March and December (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in July
Index, WA

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

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

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Index, Washington, USA

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