December weather forecast
East Wenatchee, WA

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Weather in December

The first month of the winter, December, is also an icy month in East Wenatchee, Washington, with an average temperature ranging between min 20.7°F (-6.3°C) and max 32.4°F (0.2°C).

Temperature

In East Wenatchee, December records the lowest average temperatures, peaking at 32.4°F (0.2°C) and reaching a low of 20.7°F (-6.3°C).

Humidity

In East Wenatchee, the average relative humidity in December is 88%.

Rainfall

In East Wenatchee, in December, it is raining for 10 days, with typically 1.61" (41mm) of accumulated precipitation. In East Wenatchee, during the entire year, the rain falls for 111.1 days and collects up to 11.3" (287mm) of precipitation.

Snowfall

Months with snowfall in East Wenatchee are January through April, November and December. The month with the most snowfall in East Wenatchee is December, when snow falls for 6.9 days and typically aggregates up to 4.76" (121mm) of snow.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year in East Wenatchee.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:12 pm. On the last day of December, sunrise is at 7:48 am and sunset at 4:20 pm PST.

Sunshine

In East Wenatchee, Washington, the average sunshine in December is 4.9h.

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 reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 2 during December morphs into the following directions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What are the coldest months in East Wenatchee?

In East Wenatchee, December records the average lowest temperatures, peaking at 32.4°F (0.2°C) and reaching a low of 20.7°F (-6.3°C).

How cold is December in East Wenatchee?

The high-temperature, in December, in East Wenatchee, is 32.4°F (0.2°C), while the low-temperature averages to 20.7°F (-6.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is calculated to be 82.4°F (28°C).

What is the average humidity in December in East Wenatchee?

In East Wenatchee, Washington, the average relative humidity in December is 88%.

How many days does it rain in December in East Wenatchee?

In December, in East Wenatchee, Washington, the rain falls for 10 days. Throughout December, 1.61" (41mm) of precipitation is accumulated.

When does it snow the most in East Wenatchee?

December is the month with the most snowfall in East Wenatchee, Washington. Snow falls for 6.9 days and accumulates 4.76" (121mm) of snow.

How many days does it snow in December in East Wenatchee?

In East Wenatchee, during December, snow falls for 6.9 days and regularly aggregates up to 4.76" (121mm) of snow.

What is the month with the shortest days in East Wenatchee?

With an average of 8h and 30min of daylight, December has the shortest days of the year.

How many hours of daylight does East Wenatchee have in December?

The average day length in December in East Wenatchee, Washington, is 8h and 32min.

What time are sunrise and sunset in December in East Wenatchee?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 4:12 pm. On the last day of the month, in East Wenatchee, sunrise is at 7:48 am and sunset at 4:20 pm PST.

How long on average sun shines in December in East Wenatchee?

The average sunshine duration in December in East Wenatchee, Washington, is 4.9h.

What is the month with the lowest UV index in East Wenatchee?

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

What is the UV index reading in December in East Wenatchee?

In East Wenatchee, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to Sun's UV rays.
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 December
East Wenatchee, WA

Average temperature in December - East Wenatchee, WA
  • Average high temperature in December: 32.4°F

The warmest months (with the highest average high temperature) are July and August (82.6°F).
The month with the lowest average high temperature is December (32.4°F).

  • Average low temperature in December: 20.7°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

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Average pressure in December
East Wenatchee, WA

Average pressure in December - East Wenatchee, WA
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).

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Average wind speed in December
East Wenatchee, WA

Average wind speed in December - East Wenatchee, WA
  • Average wind speed in December: 3.4mph

The windiest month (with the highest average wind speed) is June (6.1mph).
The calmest month (with the lowest average wind speed) is December (3.4mph).

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Average humidity in December
East Wenatchee, WA

Average humidity in December - East Wenatchee, WA
  • Average humidity in December: 88%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are July and August (47%).

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Average rainfall in December
East Wenatchee, WA

Average rainfall in December - East Wenatchee, WA
  • Average rainfall in December: 1.61"

The wettest month (with the highest rainfall) is January (1.77").
The driest months (with the least rainfall) are July and August (0.24").

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Average rainfall days in December
East Wenatchee, WA

Average rainfall days in December - East Wenatchee, WA
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is March (14 days).
The month with the least rainy days is August (3.4 days).

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Average snowfall in December
East Wenatchee, WA

Average snowfall in December - East Wenatchee, WA
  • Average snowfall in December: 4.76"

The month with the highest snowfall is December (4.76").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
East Wenatchee, WA

Average snowfall days in December - East Wenatchee, WA
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is December (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
East Wenatchee, WA

Average daylight in December / Average sunshine in December - East Wenatchee, WA
  • Average daylight in December: 8h and 3min

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 30min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
East Wenatchee, WA

Average sunshine days in December - East Wenatchee, WA
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is August (26.3 days).
The month with the least sunshine days is February (13.3 days).

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Average UV index in December
East Wenatchee, WA

Average UV index in December - East Wenatchee, WA
  • Average UV index in December: 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 December
East Wenatchee, WA

Average cloud cover in December - East Wenatchee, WA
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 11).

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Average visibility in December
East Wenatchee, WA

Average visibility in December - East Wenatchee, WA
  • Average visibility in December: 4mi

The months with the highest visibility are March, 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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East Wenatchee, Washington, USA

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