January weather forecast and climate
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).

Temperature

In Monroe, Washington, the average high-temperature is practically the same as in December - a still wintry 42.6°F (5.9°C). The average low-temperature, in Monroe, is 32.9°F (0.5°C).

Humidity

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

Rainfall

In Monroe, during January, the rain falls for 11.8 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, in Monroe, there are 115.8 rainfall days, and 11.81" (300mm) of precipitation is accumulated.

Snowfall

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

In January, the average length of the day is 8.9h.

Sunshine

The average sunshine in January is 4h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the most humid month in Monroe?

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

How many days does it rain in January in Monroe?

In January, in Monroe, the rain falls for 11.8 days. Throughout January, 1.61" (41mm) of precipitation is accumulated.

How much does it snow in Monroe in January?

In January, in Monroe, it is snowing for 1.4 days. Throughout January, 0.75" (19mm) of snow is accumulated.

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

The average length of the day in January is 8.9h.

How long on average sun shines in January in Monroe?

The average sunshine in January is 4h.

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

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

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 reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

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"

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 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%

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").
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).
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: 8.9h

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

  • Average sunshine in January: 4h

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 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).
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).
Months with the lowest visibility are January, February, March, April, November and December (4mi).

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