January weather forecast
East Renton Highlands, WA

Weather in January

January is a frosty winter month in East Renton Highlands, Washington, with an average temperature fluctuating between 34.3°F (1.3°C) and 44.2°F (6.8°C).

Temperature

In East Renton Highlands, Washington, the average high-temperature in January is almost the same as in December - a chilly 44.2°F (6.8°C). In January, the average low-temperature is 34.3°F (1.3°C).

Humidity

The months with the highest humidity are January, February and December, with an average relative humidity of 85%.

Rainfall

In East Renton Highlands, during 17.4 rainfall days, 4.96" (126mm) of precipitation is typically accumulated. Throughout the year, there are 175.4 rainfall days, and 33.9" (861mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in East Renton Highlands. In East Renton Highlands, during January, snow falls for 2.3 days and regularly aggregates up to 1.54" (39mm) of snow. In East Renton Highlands, during the entire year, snow falls for 13.6 days and aggregates up to 7.6" (193mm) of snow.

Daylight

The average length of the day in January in East Renton Highlands is 8h and 58min.
On the first day of the month, sunrise is at 7:56 am and sunset at 4:28 pm. On the last day of January, sunrise is at 7:35 am and sunset at 5:08 pm PST.

Sunshine

The average sunshine in January in East Renton Highlands, Washington, is 4.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What are the most humid months in East Renton Highlands?

January, February and December, with an average relative humidity of 85%, are most humid months in East Renton Highlands.

What is the average humidity in January in East Renton Highlands?

The average relative humidity in January in East Renton Highlands, Washington, is 85%.

How much does it rain in East Renton Highlands in January?

In January, in East Renton Highlands, Washington, the rain falls for 17.4 days. Throughout January, 4.96" (126mm) of precipitation is accumulated.

How many days does it snow in January in East Renton Highlands?

In East Renton Highlands, Washington, in January, during 2.3 snowfall days, 1.54" (39mm) of snow is typically accumulated.

What is the average length of the day in January in East Renton Highlands?

In East Renton Highlands, the average day length in January is 8h and 58min.

When is the sunrise / sunset in January in East Renton Highlands?

On the first day of January, sunrise is at 7:56 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:08 pm PST.

How many hours of sunshine does East Renton Highlands have in January?

The average sunshine duration in January in East Renton Highlands is 4.1h.

What are the months with the lowest UV index in East Renton Highlands?

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

How high is the UV index in January in East Renton Highlands?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
East Renton Highlands, WA

Average temperature in January - East Renton Highlands, WA
  • Average high temperature in January: 44.2°F

The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in January: 34.3°F

The month with the highest average low temperature is August (52.3°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

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Average pressure in January
East Renton Highlands, WA

Average pressure in January - East Renton Highlands, 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
East Renton Highlands, WA

Average wind speed in January - East Renton Highlands, WA
  • Average wind speed in January: 5mph

The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).

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Average humidity in January
East Renton Highlands, WA

Average humidity in January - East Renton Highlands, WA
  • Average humidity in January: 85%

The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in January
East Renton Highlands, WA

Average rainfall in January - East Renton Highlands, WA
  • Average rainfall in January: 4.96"

The wettest month (with the highest rainfall) is December (5.12").
The driest month (with the least rainfall) is July (0.51").

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Average rainfall days in January
East Renton Highlands, WA

Average rainfall days in January - East Renton Highlands, WA
  • Average rainfall days in January: 17.4 days

The month with the highest number of rainy days is March (19.7 days).
The month with the least rainy days is August (6.2 days).

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Average snowfall in January
East Renton Highlands, WA

Average snowfall in January - East Renton Highlands, WA
  • Average snowfall in January: 1.54"

The month with the highest snowfall is February (3.62").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
East Renton Highlands, WA

Average snowfall days in January - East Renton Highlands, WA
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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Average daylight in January /
Average sunshine in January
East Renton Highlands, WA

Average daylight in January / Average sunshine in January - East Renton Highlands, WA
  • Average daylight in January: 8h and 58min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 31min).

  • Average sunshine in January: 4h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 0min).

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Average sunshine days in January
East Renton Highlands, WA

Average sunshine days in January - East Renton Highlands, WA
  • Average sunshine days in January: 11.1 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.8 days).

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Average UV index in January
East Renton Highlands, WA

Average UV index in January - East Renton Highlands, WA
  • Average UV index in January: 2

The months with the highest UV index are June and 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
East Renton Highlands, WA

Average cloud cover in January - East Renton Highlands, WA
  • Average cloud cover in January: 58

The months with the most cloud cover are January and December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in January
East Renton Highlands, WA

Average visibility in January - East Renton Highlands, WA
  • Average visibility in January: 5mi

The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).

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