January 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, the same as December, is an icy winter month in Monroe, Washington, 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).

Temperature

As December transitions into January, Monroe records an average high-temperature of a still icy 42.6°F (5.9°C), showing a gentle shift from the preceding month. Throughout January, Monroe anticipates an average low-temperature of 32.9°F (0.5°C).

Humidity

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

Rainfall

In January, the rain falls for 11.8 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. In Monroe, during the entire year, the rain falls for 115.8 days and collects up to 11.81" (300mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. In Monroe, in January, snow falls for 1.4 days, with typically accumulated 0.75" (19mm) of snow. In Monroe, during the entire year, snow falls for 7 days and aggregates up to 2.64" (67mm) of snow.

Daylight

The average length of the day in January in Monroe is 8h and 56min.
On the first day of the month, sunrise is at 7:56 am and sunset at 4:25 pm. On the last day of January, sunrise is at 7:36 am and sunset at 5:06 pm PST.

Sunshine

In January, the average sunshine in Monroe is 4h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Monroe. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 2 during January leads to these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

How cold is it in Monroe in January?

The high-temperature, in January, in Monroe, records 42.6°F (5.9°C), while the low-temperature is 32.9°F (0.5°C).

What is the most humid month in Monroe?

The months with the highest humidity in Monroe are January, February and December, with an average relative humidity of 86%.

What is the average humidity in January in Monroe?

In January, the average relative humidity in Monroe is 86%.

How many days does it rain in January in Monroe?

In Monroe, in January, it is raining for 11.8 days, with typically 1.61" (41mm) of accumulated precipitation.

How much does it snow in Monroe in January?

In Monroe, in January, snow falls for 1.4 days, with typically accumulated 0.75" (19mm) of snow.

What is the average length of the day in January in Monroe?

In January, the average day length is 8h and 56min.

What time are sunrise and sunset in January in Monroe?

On the first day of January in Monroe, sunrise is at 7:56 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:06 pm PST.

How many hours of sunshine does Monroe have in January?

In Monroe, Washington, the average sunshine duration in January is 4h.

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

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

What is the UV index reading in January in Monroe?

In Monroe, Washington, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Monroe, WA

Average temperature in January - Monroe, WA
  • Average high temperature in January: 42.6°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 January: 32.9°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 January
Monroe, WA

Average pressure in January - Monroe, WA
  • Average pressure in January: 30.1"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 January
Monroe, WA

Average wind speed in January - Monroe, WA
  • Average wind speed in January: 4.9mph

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 January
Monroe, WA

Average humidity in January - Monroe, WA
  • Average humidity in January: 86%

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 January
Monroe, WA

Average rainfall in January - Monroe, WA
  • Average rainfall in January: 1.61"

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 January
Monroe, WA

Average rainfall days in January - Monroe, WA
  • Average rainfall days in January: 11.8 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 January
Monroe, WA

Average snowfall in January - Monroe, WA
  • Average snowfall in January: 0.75"

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 January
Monroe, WA

Average snowfall days in January - Monroe, WA
  • Average snowfall days in January: 1.4 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 January /
Average sunshine in January
Monroe, WA

Average daylight in January / Average sunshine in January - Monroe, WA
  • Average daylight in January: 8h and 5min

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 January: 4h and 0min

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 January
Monroe, WA

Average sunshine days in January - Monroe, WA
  • Average sunshine days in January: 16.8 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 January
Monroe, WA

Average UV index in January - Monroe, WA
  • Average UV index in January: 2

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 January
Monroe, WA

Average cloud cover in January - Monroe, WA
  • Average cloud cover in January: 59

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 January
Monroe, WA

Average visibility in January - Monroe, WA
  • Average visibility in January: 4mi

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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