January weather forecast
Manson, WA

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Weather in January

January, like December, is another subzero cold winter month in Manson, Washington, with an average temperature fluctuating between 30.9°F (-0.6°C) and 19°F (-7.2°C).

Temperature

With the onset of January, the average high-temperature registers at a still subzero cold 30.9°F (-0.6°C), subtly different from December's 30.2°F (-1°C). Manson throughout January, records an average low-temperature of 19°F (-7.2°C).

Humidity

The most humid month is January, with an average relative humidity of 90%.

Rainfall

In Manson, Washington, in January, during 8.6 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 99.9 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

January through April, September through December are months with snowfall in Manson, Washington. In Manson, in January, during 12 snowfall days, 7.87" (200mm) of snow is typically accumulated. In Manson, during the entire year, snow falls for 48.7 days and aggregates up to 28.62" (727mm) of snow.

Daylight

In Manson, the average length of the day in January is 8h and 55min.
On the first day of January in Manson, sunrise is at 7:49 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:58 pm PST.

Sunshine

The month with the least sunshine in Manson is January, with an average of 4.1h of sunshine.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
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Frequently asked questions

How cold is January in Manson?

The high-temperature, in January, in Manson, records 30.9°F (-0.6°C), while the low-temperature is 19°F (-7.2°C).

What is the most humid month in Manson?

With an average relative humidity of 90%, January is the most humid month.

What is the average humidity in January in Manson?

In January, the average relative humidity in Manson, Washington, is 90%.

How many days does it rain in January in Manson?

In January, in Manson, Washington, the rain falls for 8.6 days. Throughout January, 1.5" (38mm) of precipitation is accumulated.

How much does it snow in Manson in January?

In January, in Manson, it is snowing for 12 days. Throughout January, 7.87" (200mm) of snow is accumulated.

How many hours of daylight does Manson have in January?

The average day length in January in Manson, Washington, is 8h and 55min.

When is the sunrise / sunset in January in Manson?

On the first day of January in Manson, Washington, sunrise is at 7:49 am and sunset at 4:18 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:58 pm PST.

What is the month with the least sunshine in Manson?

January has the least sunshine of the year in Manson, Washington, with an average of 4.1h of sunshine.

How long on average sun shines in January in Manson?

The average sunshine duration in January in Manson is 4.1h.

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

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Manson, Washington.

What is the UV index reading in January in Manson?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's 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
Manson, WA

Average temperature in January - Manson, WA
  • Average high temperature in January: 30.9°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is December (30.2°F).

  • Average low temperature in January: 19°F

The month with the highest average low temperature is August (55.8°F).
The coldest months (with the lowest average low temperature) are January and December (19°F).

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Average pressure in January
Manson, WA

Average pressure in January - Manson, WA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in January
Manson, WA

Average wind speed in January - Manson, WA
  • Average wind speed in January: 3.5mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest months (with the lowest average wind speed) are January and December (3.5mph).

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Average humidity in January
Manson, WA

Average humidity in January - Manson, WA
  • Average humidity in January: 90%

The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (43%).

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Average rainfall in January
Manson, WA

Average rainfall in January - Manson, WA
  • Average rainfall in January: 1.5"

The wettest month (with the highest rainfall) is December (1.65").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in January
Manson, WA

Average rainfall days in January - Manson, WA
  • Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (3.8 days).

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Average snowfall in January
Manson, WA

Average snowfall in January - Manson, WA
  • Average snowfall in January: 7.87"

The month with the highest snowfall is December (9.06").
The months with the least snowfall are May, June, July and August (0").

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Average snowfall days in January
Manson, WA

Average snowfall days in January - Manson, WA
  • Average snowfall days in January: 12 days

The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in January /
Average sunshine in January
Manson, WA

Average daylight in January / Average sunshine in January - Manson, 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 1min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in January
Manson, WA

Average sunshine days in January - Manson, WA
  • Average sunshine days in January: 14.4 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (13.2 days).

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Average UV index in January
Manson, WA

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in January
Manson, WA

Average cloud cover in January - Manson, WA
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).

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Average visibility in January
Manson, WA

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

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Manson, Washington, USA

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