December weather forecast
Adrian, WA

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Weather in December

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

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 32.4°F (0.2°C) and a low of 20.7°F (-6.3°C).

Humidity

In Adrian, the average relative humidity in December is 87%.

Rainfall

The months with the most rainfall are January and December, with an average 1.57" (40mm) of precipitation.

Snowfall

January through April, September, November and December are months with snowfall in Adrian, Washington. December is the month with the most snowfall in Adrian, Washington. Snow falls for 9.5 days and accumulates 5.98" (152mm) of snow.

Daylight

The month with the shortest days is December, with an average of 8h and 30min of daylight.
On the first day of the month, sunrise is at 7:27 am and sunset at 4:10 pm. On the last day of December, in Adrian, sunrise is at 7:46 am and sunset at 4:19 pm PST.

Sunshine

In Adrian, the average sunshine in December is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Adrian. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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Frequently asked questions

What is the coldest month in Adrian?

The month of December sees the average lowest temperatures in Adrian, reaching 32.4°F (0.2°C) at the peak and 20.7°F (-6.3°C) at the low.

How cold is it in Adrian in December?

Adrian in December has an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 20.7°F (-6.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is estimated at 82.4°F (28°C).

What is the average humidity in December in Adrian?

In Adrian, Washington, the average relative humidity in December is 87%.

What is the wettest month in Adrian?

The wettest months in Adrian are January and December, with an average 1.57" (40mm) of rainfall.

How much does it rain in Adrian in December?

In Adrian, during December, the rain falls for 9.7 days and regularly aggregates up to 1.57" (40mm) of precipitation.

What is the snowiest month in Adrian?

The month with the most snowfall in Adrian, Washington, is December, when snow falls for 9.5 days and typically aggregates up to 5.98" (152mm) of snow.

How much does it snow in Adrian in December?

In Adrian, Washington, in December, during 9.5 snowfall days, 5.98" (152mm) of snow is typically accumulated.

What is the month with the shortest days in Adrian?

The month with the shortest days in Adrian, Washington, is December, with an average of 8h and 30min of daylight.

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

In Adrian, the average day length in December is 8h and 32min.

What time are sunrise and sunset in December in Adrian?

On the first day of December, sunrise is at 7:27 am and sunset at 4:10 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 4:19 pm PST.

How long on average sun shines in December in Adrian?

In Adrian, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index in Adrian?

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

What is the UV index intensity in December in Adrian?

In December, the average daily maximum UV index in Adrian, Washington, is 2. A UV Index reading of 2, and below, represents a low health threat 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
Adrian, WA

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

The warmest month (with the highest average high temperature) is July (83.1°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 (56.3°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

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Average pressure in December
Adrian, WA

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

Average wind speed in December - Adrian, WA
  • Average wind speed in December: 3.7mph

The windiest month (with the highest average wind speed) is June (6.5mph).
The calmest month (with the lowest average wind speed) is December (3.7mph).

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Average humidity in December
Adrian, WA

Average humidity in December - Adrian, WA
  • Average humidity in December: 87%

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are July and August (44%).

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Average rainfall in December
Adrian, WA

Average rainfall in December - Adrian, WA
  • Average rainfall in December: 1.57"

The wettest months (with the highest rainfall) are January and December (1.57").
The driest months (with the least rainfall) are July and August (0.24").

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Average rainfall days in December
Adrian, WA

Average rainfall days in December - Adrian, WA
  • Average rainfall days in December: 9.7 days

The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (3.8 days).

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Average snowfall in December
Adrian, WA

Average snowfall in December - Adrian, WA
  • Average snowfall in December: 5.98"

The month with the highest snowfall is December (5.98").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in December
Adrian, WA

Average snowfall days in December - Adrian, WA
  • Average snowfall days in December: 9.5 days

The month with the highest number of snowfall days is December (9.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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

Average daylight in December / Average sunshine in December - Adrian, 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 42min).

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Average sunshine days in December
Adrian, WA

Average sunshine days in December - Adrian, WA
  • Average sunshine days in December: 15.7 days

The month with the most sunshine days is July (25.5 days).
The month with the least sunshine days is February (12.6 days).

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Average UV index in December
Adrian, WA

Average UV index in December - Adrian, 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
Adrian, WA

Average cloud cover in December - Adrian, WA
  • Average cloud cover in December: 47

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

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Average visibility in December
Adrian, WA

Average visibility in December - Adrian, WA
  • Average visibility in December: 4mi

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

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Adrian, Washington, USA

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