January weather forecast
Allyn, WA

Weather in January

January in Allyn, Washington, is a chilly winter month, with an average temperature fluctuating between 34.7°F (1.5°C) and 44.2°F (6.8°C).

Temperature

In January, the average high-temperature is practically the same as in December - a frosty 44.2°F (6.8°C). The average low-temperature, in Allyn, is 34.7°F (1.5°C).

Humidity

The average relative humidity in January is 87%.

Rainfall

In Allyn, during 17.6 rainfall days, 4.96" (126mm) of precipitation is typically accumulated. Throughout the year, there are 175.2 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Allyn are January through April, November and December. In Allyn, Washington, during January, snow falls for 2.4 days and regularly aggregates up to 1.81" (46mm) of snow. Throughout the year, in Allyn, there are 12.1 snowfall days, and 7.05" (179mm) of snow is accumulated.

Daylight

In January, the average length of the day is 8h and 59min.
On the first day of January, sunrise is at 7:58 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:11 pm PST.

Sunshine

In Allyn, the average sunshine in January is 4.1h.

UV index

The 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 vulnerability from 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in January in Allyn?

In Allyn, in January, the average high-temperature is 44.2°F (6.8°C), and the average low-temperature is 34.7°F (1.5°C).

What is the average humidity in January in Allyn?

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

How many days does it rain in January in Allyn?

In Allyn, Washington, in January, during 17.6 rainfall days, 4.96" (126mm) of precipitation is typically accumulated.

How many days does it snow in January in Allyn?

In Allyn, during January, snow falls for 2.4 days and regularly aggregates up to 1.81" (46mm) of snow.

How many hours of daylight does Allyn have in January?

In January, the average day length is 8h and 59min.

When are sunrise and sunset in January in Allyn?

In January, on the first day of the month, sunrise is at 7:58 am and sunset at 4:31 pm. On the last day of the month, in Allyn, Washington, sunrise is at 7:38 am and sunset at 5:11 pm PST.

How long on average sun shines in January in Allyn?

In Allyn, Washington, the average sunshine duration in January is 4.1h.

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

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

How high is the UV index in January in Allyn?

In January, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
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
Allyn, WA

Average temperature in January - Allyn, WA
  • Average high temperature in January: 44.2°F

The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.3°F).

  • Average low temperature in January: 34.7°F

The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).

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Average pressure in January
Allyn, WA

Average pressure in January - Allyn, WA
  • Average pressure in January: 30.09"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).

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Average wind speed in January
Allyn, WA

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

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

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Average humidity in January
Allyn, WA

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

The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is July (69%).

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Average rainfall in January
Allyn, WA

Average rainfall in January - Allyn, WA
  • Average rainfall in January: 4.96"

The wettest month (with the highest rainfall) is December (5").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in January
Allyn, WA

Average rainfall days in January - Allyn, WA
  • Average rainfall days in January: 17.6 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 days).

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Average snowfall in January
Allyn, WA

Average snowfall in January - Allyn, WA
  • Average snowfall in January: 1.81"

The month with the highest snowfall is February (2.91").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Allyn, WA

Average snowfall days in January - Allyn, WA
  • Average snowfall days in January: 2.4 days

The month with the highest number of snowfall days is February (3.8 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
Allyn, WA

Average daylight in January / Average sunshine in January - Allyn, WA
  • Average daylight in January: 8h and 59min

The month with the longest days is June (Average daylight: 15h and 53min).
The month with the shortest days is December (Average daylight: 8h and 32min).

  • Average sunshine in January: 4h and 6min

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
Allyn, WA

Average sunshine days in January - Allyn, WA
  • Average sunshine days in January: 10.3 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is November (8.7 days).

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Average UV index in January
Allyn, WA

Average UV index in January - Allyn, 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, November and December (UV index 2).

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Average cloud cover in January
Allyn, WA

Average cloud cover in January - Allyn, 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 26).

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Average visibility in January
Allyn, WA

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

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

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