Climate and monthly weather forecast
Monroe, WA

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 January

January, like December, in Monroe, Washington, is another cold winter month, with average temperature varying between 32.9°F (0.5°C) and 42.6°F (5.9°C). In Monroe, Washington, the average high-temperature is practically the same as in December - a still wintry 42.6°F (5.9°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Monroe, Washington, with average temperature varying between 44.1°F (6.7°C) and 32.2°F (0.1°C). In Monroe, the average high-temperature is practically the same as in January - a frosty 44.1°F (6.7°C). Weather in February »

Weather in March

The first month of the spring, March, is also a frosty month in Monroe, Washington, with average temperature ranging between max 48.7°F (9.3°C) and min 34.3°F (1.3°C). In March, the average high-temperature is practically the same as in February - a still chilly 48.7°F (9.3°C). Weather in March »

Weather in April

April in Monroe, Washington, is a fresh spring month, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 54.3°F (12.4°C). In Monroe, Washington, the average high-temperature in April slightly increases, from a frosty 48.7°F (9.3°C) in March, to a fresh 54.3°F (12.4°C). Weather in April »

Weather in May

May, the last month of the spring, in Monroe, is a comfortable month, with average temperature varying between 41.5°F (5.3°C) and 63.3°F (17.4°C). In Monroe, the average high-temperature slightly increases, from a fresh 54.3°F (12.4°C) in April, to an enjoyable 63.3°F (17.4°C). Weather in May »

Weather in June

June, the first month of the summer, in Monroe, is still a comfortable month, with average temperature fluctuating between 67.8°F (19.9°C) and 44.6°F (7°C). In June, the average high-temperature is essentially the same as in May - a still comfortable 67.8°F (19.9°C). Weather in June »

Weather in July

July in Monroe, Washington, is a warm summer month, with average temperature varying between 48.6°F (9.2°C) and 74.8°F (23.8°C). In Monroe, the average high-temperature marginally rises, from an enjoyable 67.8°F (19.9°C) in June, to a warm 74.8°F (23.8°C). Weather in July »

Weather in August

August, the last month of the summer, in Monroe, is also a moderately hot month, with average temperature fluctuating between 49.8°F (9.9°C) and 75.6°F (24.2°C). With an average high-temperature of 75.6°F (24.2°C) and an average low-temperature of 49.8°F (9.9°C), August is the warmest month. Weather in August »

Weather in September

September, the first month of the autumn, in Monroe, is still a pleasant month, with average temperature ranging between max 68.7°F (20.4°C) and min 47.3°F (8.5°C). In September, the average high-temperature slightly decreases, from a warm 75.6°F (24.2°C) in August, to a pleasant 68.7°F (20.4°C). Weather in September »

Weather in October

October, the same as September, in Monroe, Washington, is a moderate autumn month, with average temperature ranging between max 57.2°F (14°C) and min 42.3°F (5.7°C). In October, the average high-temperature decreases, from a pleasant 68.7°F (20.4°C) in September, to a moderate 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Monroe, Washington, with average temperature varying between 36.9°F (2.7°C) and 47.1°F (8.4°C). In Monroe, the average high-temperature drops, from a mild 57.2°F (14°C) in October, to a chilly 47.1°F (8.4°C). Weather in November »

Weather in December

December, the first month of the winter, in Monroe, is also a wintry month, with temperature in the range of an average high of 41.2°F (5.1°C) and an average low of 31.8°F (-0.1°C). With an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 31.8°F (-0.1°C), December is the coldest month. Weather in December »
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FAQ

What is the most humid month in Monroe?

Months with the highest humidity are January, February and December, with an average relative humidity of 86%.

How much does it rain in Monroe?

Throughout the year, in Monroe, Washington, there are 115.8 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

When does it snow in Monroe?

January through April, November and December are months with snowfall in Monroe.

How many days does it snow in Monroe?

In Monroe, Washington, during the entire year, snow falls for 7 days, and aggregates up to 2.64" (67mm) of snow.

What is the month with the lowest UV index in Monroe?

Months with the lowest UV index in Monroe, Washington, are January, February, November and December, with an average maximum UV index of 2.

What is the snowiest month in Monroe?

February is the month with the most snowfall. Snow falls for 2.8 days and accumulates 1.02" (26mm) of snow.

When it does not snow in Monroe?

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

When are the longest days in Monroe?

With an average of 16h of daylight, June has the longest days of the year in Monroe.

What is the least humid month in Monroe?

The least humid month in Monroe, Washington, is July, with an average relative humidity of 71%.

When is the highest UV index in Monroe?

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

What is the warmest month in Monroe?

The warmest month is August, with an average high-temperature of 75.6°F (24.2°C) and an average low-temperature of 49.8°F (9.9°C).

What is the driest month in Monroe?

The month with the least rainfall is August when the rain falls for 4 days and typically collects 0.2" (5mm) of precipitation.

What month has the most sunshine in Monroe?

August has the most sunshine of the year in Monroe, with an average of 10.6h of sunshine.

What is the coldest month in Monroe?

The coldest month in Monroe is December, with an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 31.8°F (-0.1°C).

What is the rainiest month in Monroe?

December is the month with the most rainfall. Rain falls for 12.4 days and accumulates 1.85" (47mm) of precipitation.

What is the month with the shortest days in Monroe?

The month with the shortest days in Monroe, Washington, is December, with an average of 8.5h of daylight.

What is the month with the least sunshine in Monroe?

The month with the least sunshine is December, with an average of 3.8h of sunshine.

Average temperature
Monroe, WA

Average temperature - Monroe, WA

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).

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
Monroe, WA

Average pressure - Monroe, WA

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

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Average wind speed
Monroe, WA

Average wind speed - Monroe, WA

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
Monroe, WA

Average humidity - Monroe, WA

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
Monroe, WA

Average rainfall - Monroe, WA

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
Monroe, WA

Average rainfall days - Monroe, WA

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
Monroe, WA

Average snowfall - Monroe, WA

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

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Average snowfall days
Monroe, WA

Average snowfall days - Monroe, WA

The month with the highest number of snowfall days is February (2.8 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Monroe, WA

Average daylight / Average sunshine - Monroe, WA

The month with the longest days is June (Average daylight: 16h).
The month with the shortest days is December (Average daylight: 8.5h).

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 3.8h).

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Average sunshine days
Monroe, WA

Average sunshine days - Monroe, WA

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 visibility
Monroe, WA

Average visibility - Monroe, WA

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

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