January weather forecast and climate
Ellensburg, WA

Weather in January

January, like December, in Ellensburg, Washington, is another cold winter month, with average temperature ranging between min 22.6°F (-5.2°C) and max 34.3°F (1.3°C).

Temperature

In January, the average high-temperature is practically the same as in December - a still wintry 34.3°F (1.3°C). In January, the average low-temperature is 22.6°F (-5.2°C).

Humidity

January is the most humid month, with an average relative humidity of 87%.

Rainfall

In Ellensburg, it is raining for 10.3 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, in Ellensburg, there are 99.9 rainfall days, and 8.66" (220mm) of precipitation is accumulated.

Snowfall

January through April, September through December are months with snowfall. In Ellensburg, during 8.7 snowfall days, 3.98" (101mm) of snow is typically accumulated. Throughout the year, there are 35.4 snowfall days, and 15.59" (396mm) of snow is accumulated.

Daylight

In January, the average length of the day in Ellensburg, Washington, is 9h.

Sunshine

January and December, with an average of 4.8h of sunshine, are months with the least sunshine in Ellensburg, Washington.

UV index

January through March, November and 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 low health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 Ellensburg?

January is the most humid month, with an average relative humidity of 87%.

What is the average humidity in January in Ellensburg?

In January, the average relative humidity in Ellensburg, Washington, is 87%.

How many days does it rain in January in Ellensburg?

In January, in Ellensburg, Washington, the rain falls for 10.3 days. Throughout January, 1.22" (31mm) of precipitation is accumulated.

How many days does it snow in January in Ellensburg?

In Ellensburg, Washington, in January, snow falls for 8.7 days, with typically accumulated 3.98" (101mm) of snow.

How many hours of daylight does Ellensburg have in January?

The average length of the day in January is 9h.

What is the month with the least sunshine in Ellensburg?

January and December, with an average of 4.8h of sunshine, are months with the least sunshine in Ellensburg, Washington.

How many hours of sunshine does Ellensburg have in January?

In Ellensburg, the average sunshine in January is 4.8h.

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

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

How high is the UV index in January in Ellensburg?

In Ellensburg, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a low health threat from the exposure to the Sun's UV radiation.

Average temperature in January
Ellensburg, WA

Average temperature in January - Ellensburg, WA
  • Average high temperature in January: 34.3°F

The warmest months (with the highest average high temperature) are July and August (82°F).
The month with the lowest average high temperature is December (33.3°F).

  • Average low temperature in January: 22.6°F

The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).

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Average pressure in January
Ellensburg, WA

Average pressure in January - Ellensburg, WA
  • Average pressure in January: 30.15"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is August (29.94").

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Average wind speed in January
Ellensburg, WA

Average wind speed in January - Ellensburg, WA
  • Average wind speed in January: 4.5mph

The windiest month (with the highest average wind speed) is June (8.9mph).
The calmest month (with the lowest average wind speed) is December (4.2mph).

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Average humidity in January
Ellensburg, WA

Average humidity in January - Ellensburg, WA
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
Months with the lowest relative humidity are July and August (46%).

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Average rainfall in January
Ellensburg, WA

Average rainfall in January - Ellensburg, WA
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in January
Ellensburg, WA

Average rainfall days in January - Ellensburg, WA
  • Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (2.8 days).

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Average snowfall in January
Ellensburg, WA

Average snowfall in January - Ellensburg, WA
  • Average snowfall in January: 3.98"

The month with the highest snowfall is December (4.65").
Months with the least snowfall are May, June, July and August (0").

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Average snowfall days in January
Ellensburg, WA

Average snowfall days in January - Ellensburg, WA
  • Average snowfall days in January: 8.7 days

Months with the highest number of snowfall days are January and December (8.7 days).
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
Ellensburg, WA

Average daylight in January / Average sunshine in January - Ellensburg, WA
  • Average daylight in January: 9h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in January: 4.8h

Months with the most sunshine are July and August (Average sunshine: 12h).
Months with the least sunshine are January and December (Average sunshine: 4.8).

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Average sunshine days in January
Ellensburg, WA

Average sunshine days in January - Ellensburg, WA
  • Average sunshine days in January: 15.2 days

The month with the most sunshine days is July (27.1 days).
The month with the least sunshine days is February (13.5 days).

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Average UV index in January
Ellensburg, WA

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

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

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Average cloud cover in January
Ellensburg, WA

Average cloud cover in January - Ellensburg, WA
  • Average cloud cover in January: 48

The month with the most cloud cover is January (Cloud cover 48).
Months with the least cloud cover are July and August (Cloud cover 11).

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Average visibility in January
Ellensburg, WA

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

Months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January and December (4mi).

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