December weather forecast
Lyle, WA

Weather in December

December, the first month of the winter, in Lyle, is also a wintry month, with average temperature fluctuating between 27.1°F (-2.7°C) and 37°F (2.8°C).

Temperature

The coldest month is December, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 27.1°F (-2.7°C).

Humidity

January and December, with an average relative humidity of 85%, are most humid months in Lyle.

Rainfall

In December, the rain falls for 15.5 days. Throughout December, 2.87" (73mm) of precipitation is accumulated. In Lyle, during the entire year, the rain falls for 133.5 days and collects up to 16.93" (430mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall in Lyle. In Lyle, during December, snow falls for 4.4 days and regularly aggregates up to 2.99" (76mm) of snow. Throughout the year, there are 14.3 snowfall days, and 11.06" (281mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Lyle, with an average of 8.8h of daylight.

Sunshine

The average sunshine in Lyle is 5h.

UV index

Months with the lowest UV index in Lyle, Washington, are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 2 in December 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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. 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 coldest month in Lyle?

The coldest month in Lyle, Washington, is December, with an average high-temperature of 37°F (2.8°C) and an average low-temperature of 27.1°F (-2.7°C).

What are the most humid months in Lyle?

Months with the highest humidity in Lyle, Washington, are January and December, with an average relative humidity of 85%.

What is the average humidity in December in Lyle?

In December, the average relative humidity in Lyle is 85%.

How much does it rain in Lyle in December?

In Lyle, Washington, in December, during 15.5 rainfall days, 2.87" (73mm) of precipitation is typically accumulated.

How much does it snow in Lyle in December?

In December, in Lyle, it is snowing for 4.4 days. Throughout December, 2.99" (76mm) of snow is accumulated.

What is the month with the shortest days in Lyle?

The month with the shortest days in Lyle is December, with an average of 8.8h of daylight.

What is the average length of the day in December in Lyle?

In Lyle, the average length of the day in December is 8.8h.

How many hours of sunshine does Lyle have in December?

In December, the average sunshine in Lyle, Washington, is 5h.

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

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 intensity in December in Lyle?

In Lyle, Washington, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in December
Lyle, WA

Average temperature in December - Lyle, WA
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (37°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is August (55.8°F).
The coldest month (with the lowest average low temperature) is December (27.1°F).

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Average pressure in December
Lyle, WA

Average pressure in December - Lyle, WA
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is August (29.96").

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Average wind speed in December
Lyle, WA

Average wind speed in December - Lyle, WA
  • Average wind speed in December: 4.8mph

The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.8mph).

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Average humidity in December
Lyle, WA

Average humidity in December - Lyle, WA
  • Average humidity in December: 85%

Months with the highest relative humidity are January and December (85%).
Months with the lowest relative humidity are July and August (51%).

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Average rainfall in December
Lyle, WA

Average rainfall in December - Lyle, WA
  • Average rainfall in December: 2.87"

The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in December
Lyle, WA

Average rainfall days in December - Lyle, WA
  • Average rainfall days in December: 15.5 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (3.2 days).

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Average snowfall in December
Lyle, WA

Average snowfall in December - Lyle, WA
  • Average snowfall in December: 2.99"

The month with the highest snowfall is February (4.29").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Lyle, WA

Average snowfall days in December - Lyle, WA
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is December (4.4 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Lyle, WA

Average daylight in December / Average sunshine in December - Lyle, WA
  • Average daylight in December: 8.8h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.8h).

  • Average sunshine in December: 5h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is January (Average sunshine: 4.8h).

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Average sunshine days in December
Lyle, WA

Average sunshine days in December - Lyle, WA
  • Average sunshine days in December: 12.1 days

The month with the most sunshine days is July (26.8 days).
The month with the least sunshine days is March (10.6 days).

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Average UV index in December
Lyle, WA

Average UV index in December - Lyle, WA
  • Average UV index in December: 2

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

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Average cloud cover in December
Lyle, WA

Average cloud cover in December - Lyle, WA
  • Average cloud cover in December: 49

The month with the most cloud cover is January (Cloud cover 52).
Months with the least cloud cover are July and August (Cloud cover 10).

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Average visibility in December
Lyle, WA

Average visibility in December - Lyle, WA
  • Average visibility in December: 5mi

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

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