Climate and monthly 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 January

January, like December, in Monroe, Washington, is another cold winter month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 42.6°F (5.9°C). January commences with an average high-temperature of a still wintry 42.6°F (5.9°C), showing little deviation from December's 41.2°F (5.1°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Monroe, Washington, with an average temperature ranging between max 44.1°F (6.7°C) and min 32.2°F (0.1°C). Transitioning from January to February, Monroe observes an average high-temperature of a frosty 44.1°F (6.7°C), differing subtly from the previous month. Weather in February »

Weather in March

March, the first month of the spring in Monroe, is also a frosty month, with an average temperature varying between 48.7°F (9.3°C) and 34.3°F (1.3°C). Monroe starts March with an average high-temperature of a still frosty 48.7°F (9.3°C), a minor shift from February's 44.1°F (6.7°C). Weather in March »

Weather in April

April in Monroe, Washington, is a cool spring month, with temperature in the range of an average high of 54.3°F (12.4°C) and an average low of 37°F (2.8°C). A slight uplift in the average high-temperature marks April, adjusting from March's frosty 48.7°F (9.3°C) to a cool 54.3°F (12.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an enjoyable month in Monroe, Washington, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 63.3°F (17.4°C). As Monroe welcomes May, the average high-temperature sees a modest rise, transitioning from a cool 54.3°F (12.4°C) in April to a refreshing 63.3°F (17.4°C). Weather in May »

Weather in June

The first month of the summer, June, is still a refreshing month in Monroe, Washington, with an average temperature ranging between max 67.8°F (19.9°C) and min 44.6°F (7°C). June brings a marginal elevation to a still enjoyable 67.8°F (19.9°C) from May's 63.3°F (17.4°C) in Monroe's average high-temperatures. Weather in June »

Weather in July

July is a moderately hot summer month in Monroe, Washington, with an average temperature ranging between max 74.8°F (23.8°C) and min 48.6°F (9.2°C). The start of July brings a subtle shift in the average high-temperature, edging up from June's enjoyable 67.8°F (19.9°C) to a moderately hot 74.8°F (23.8°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Monroe, Washington, 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). Monroe's warmest temperatures are experienced in August, with average high temperatures of 75.6°F (24.2°C) and lows of 49.8°F (9.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Monroe, Washington, with an average temperature varying between 47.3°F (8.5°C) and 68.7°F (20.4°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's warm 75.6°F (24.2°C) to an agreeable 68.7°F (20.4°C). Weather in September »

Weather in October

October, the same as September, in Monroe, Washington, is another refreshing autumn month, with temperature in the range of an average high of 57.2°F (14°C) and an average low of 42.3°F (5.7°C). In Monroe, the beginning of October is marked by a lowered average high-temperature, shifting from September's pleasant 68.7°F (20.4°C) to a refreshing 57.2°F (14°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Monroe, Washington, with temperature in the range of an average low of 36.9°F (2.7°C) and an average high of 47.1°F (8.4°C). Monroe's November weather features a mild decline in high-temperatures, reducing from a moderate 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 still a cold month, with an average temperature fluctuating between 31.8°F (-0.1°C) and 41.2°F (5.1°C). The lowest temperatures are recorded in December, with averages reaching a high of 41.2°F (5.1°C) and a low of 31.8°F (-0.1°C). Weather in December »

Frequently asked questions

What are the most humid months in Monroe?

The 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, there are 115.8 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through April, November and December.

How much does it snow?

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

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most?

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

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 16h and 0min of daylight.

What is the least humid month?

With an average relative humidity of 71%, July is the least humid month.

When is the highest UV index?

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

What are the warmest months in Monroe?

August, characterized by an average high temperature of 75.6°F (24.2°C) and a low temperature of 49.8°F (9.9°C), is generally the warmest month.

What is the driest month?

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?

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

What is the coldest time of year?

The lowest temperatures are recorded in December, with averages reaching a high of 41.2°F (5.1°C) and a low of 31.8°F (-0.1°C).

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 12.4 days and typically aggregates up to 1.85" (47mm) of precipitation.

What is the month with the shortest days?

With an average of 8h and 30min of daylight, December has the shortest days of the year.

What is the month with the least sunshine?

With an average of 3.8h of sunshine, December has the least sunshine of the year.

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).

Average pressure
Monroe, WA

Average pressure - Monroe, WA

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

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).

Average humidity
Monroe, WA

Average humidity - Monroe, WA

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

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").

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).

Average snowfall
Monroe, WA

Average snowfall - Monroe, WA

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").

Average snowfall days
Monroe, WA

Average snowfall days - Monroe, WA

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).

Average daylight / Average sunshine
Monroe, WA

Average daylight / Average sunshine - Monroe, WA

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).

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).

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).

Average UV index
Monroe, WA

Average UV index - Monroe, WA

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).

Average visibility
Monroe, WA

Average visibility - Monroe, WA

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

Monroe, Washington, USA

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