August weather forecast
Monroe, WA

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The red Washington Water Powerhouse, next to a large bridge over the Spokane River and scenic waterfalls in Monroe, Washington
The red Washington Water Powerhouse, next to a large bridge over the Spokane River and scenic waterfalls in Monroe, Washington

Weather in August

August, the last month of the summer in Monroe, is another warm month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 49.8°F (9.9°C).

Temperature

Monroe's August weather reaches an average high of 75.6°F (24.2°C) and an average low of 49.8°F (9.9°C), making it the warmest month.

Humidity

In Monroe, the average relative humidity in August is 73%.

Rainfall

August is the month with the least rainfall in Monroe. Rain falls for 4 days and accumulates 0.2" (5mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Monroe, the average length of the day in August is 14h and 13min.
On the first day of the month, sunrise is at 5:45 am and sunset at 8:42 pm. On the last day of August, sunrise is at 6:25 am and sunset at 7:49 pm PDT.

Sunshine

The month with the most sunshine in Monroe is August, with an average of 10.6h of sunshine.

UV index

In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 4 in August interprets into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the warmest month in Monroe?

In Monroe, the average highest temperatures are observed in August, with a high of 75.6°F (24.2°C) and a low of 49.8°F (9.9°C).

What is the average August temperature in Monroe?

In Monroe, 75.6°F (24.2°C) is the average high-temperature and 49.8°F (9.9°C) is the average low-temperature during August.

What is the average humidity in August in Monroe?

In August, the average relative humidity in Monroe is 73%.

What is the driest month in Monroe?

August is the month with the least rainfall in Monroe, Washington. Rain falls for 4 days and accumulates 0.2" (5mm) of precipitation.

How many days does it rain in August in Monroe?

In August, in Monroe, Washington, the rain falls for 4 days. Throughout August, 0.2" (5mm) of precipitation is accumulated.

When it does not snow in Monroe?

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

How many hours of daylight does Monroe have in August?

The average day length in August in Monroe is 14h and 13min.

When is the sunrise / sunset in August in Monroe?

On the first day of August, sunrise is at 5:45 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:49 pm PDT.

What month has the most sunshine in Monroe?

With an average of 10.6h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does Monroe have in August?

The average sunshine duration in August in Monroe is 10.6h.

How high is the UV index in August in Monroe?

In August, the average daily maximum UV index in Monroe is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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 August
Monroe, WA

Average temperature in August - Monroe, WA
  • Average high temperature in August: 75.6°F

The warmest month (with the highest average high temperature) is August (75.6°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in August: 49.8°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).

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Average pressure in August
Monroe, WA

Average pressure in August - Monroe, WA
  • Average pressure in August: 30"Hg

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

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Average wind speed in August
Monroe, WA

Average wind speed in August - Monroe, WA
  • Average wind speed in August: 3.3mph

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

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Average humidity in August
Monroe, WA

Average humidity in August - Monroe, WA
  • Average humidity in August: 73%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in August
Monroe, WA

Average rainfall in August - Monroe, WA
  • Average rainfall in August: 0.2"

The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is August (0.2").

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Average rainfall days in August
Monroe, WA

Average rainfall days in August - Monroe, WA
  • Average rainfall days in August: 4 days

The month with the highest number of rainy days is March (13.6 days).
The month with the least rainy days is August (4 days).

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Average snowfall in August
Monroe, WA

Average snowfall in August - Monroe, WA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Monroe, WA

Average snowfall days in August - Monroe, WA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (2.8 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 August /
Average sunshine in August
Monroe, WA

Average daylight in August / Average sunshine in August - Monroe, WA
  • Average daylight in August: 14h and 1min

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 August: 10h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).

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Average sunshine days in August
Monroe, WA

Average sunshine days in August - Monroe, WA
  • Average sunshine days in August: 25.5 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is April (15 days).

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Average UV index in August
Monroe, WA

Average UV index in August - Monroe, WA
  • Average UV index in August: 4

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

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Average cloud cover in August
Monroe, WA

Average cloud cover in August - Monroe, WA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in August
Monroe, WA

Average visibility in August - Monroe, WA
  • Average visibility in August: 5mi

The month with the highest visibility is July (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

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Monroe, Washington, USA

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