December weather forecastMead, WA

December

Weather in December

The first month of the winter, December, is also a wintry month in Mead, Washington, with an average temperature fluctuating between 21.9°F (-5.6°C) and 32°F (0°C).

Temperature

The coldest temperatures occur during December, when averages reach a peak of 32°F (0°C) and a low of 21.9°F (-5.6°C).

Humidity

In December, the average relative humidity is 88%.

Rainfall

In December, the rain falls for 8.9 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 125.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In December, it is snowing for 13.9 days. Throughout December, 8.9" (226mm) of snow is accumulated. In Mead, during the entire year, snow falls for 56.4 days and aggregates up to 37.4" (950mm) of snow.

Daylight

With an average of 8h and 30min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:18 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:07 pm PST.

Sunshine

January and December, with an average of 3.8h of sunshine, are months with the least sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The coldest temperatures occur during December, when averages reach a peak of 32°F (0°C) and a low of 21.9°F (-5.6°C).

December temperatures vary between a high-temperature of 32°F (0°C) and a low-temperature of 21.9°F (-5.6°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is estimated at 82.4°F (28°C).

The average relative humidity in December is 88%.

In December, the rain falls for 8.9 days. Throughout December, 2.2" (56mm) of precipitation is accumulated.

In Mead, Washington, during December, snow falls for 13.9 days and regularly aggregates up to 8.9" (226mm) of snow.

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

In Mead, the average day length in December is 8h and 29min.

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 3:59 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:07 pm PST.

January and December, with an average of 3.8h of sunshine, are months with the least sunshine.

In Mead, the average sunshine duration in December is 3.8h.

With an average maximum UV index of 1, December is the month with the lowest UV index.

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Mead, WA

  • Average high temperature in December: 32°F

The warmest month (with the highest average high temperature) is August (83.3°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in December: 21.9°F

The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

Average pressure in December
Mead, WA

  • Average pressure in December: 30.17"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

Average wind speed in December
Mead, WA

  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is December (4.7mph).

Average humidity in December
Mead, WA

  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (43%).

Average rainfall in December
Mead, WA

  • Average rainfall in December: 2.2"

The wettest month (with the highest rainfall) is January (2.28").
The driest months (with the least rainfall) are July and August (0.35").

Average rainfall days in December
Mead, WA

  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is March (16 days).
The month with the least rainy days is July (5.1 days).

Average snowfall in December
Mead, WA

  • Average snowfall in December: 8.9"

The month with the highest snowfall is January (10.51").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Mead, WA

  • Average snowfall days in December: 13.9 days

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

  • Average daylight in December: 8h and 30min

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: 3h and 48min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).

Average sunshine days in December
Mead, WA

  • Average sunshine days in December: 13.4 days

The month with the most sunshine days is July (24.3 days).
The month with the least sunshine days is March (10.3 days).

Average UV index in December
Mead, WA

  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Mead, WA

  • Average cloud cover in December: 61

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in December
Mead, WA

  • Average visibility in December: 4mi

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