December weather forecast
Airway Heights, WA

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Weather in December

The first month of the winter, December, is also a wintry month in Airway Heights, Washington, with an average temperature fluctuating between 32.2°F (0.1°C) and 22.1°F (-5.5°C).

Temperature

In Airway Heights, December is the month with the lowest recorded average temperatures, measuring a high of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C).

Humidity

In Airway Heights, the average relative humidity in December is 86%.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 127.8 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. In Airway Heights, in December, during 15.6 snowfall days, 8.74" (222mm) of snow is typically accumulated. In Airway Heights, Washington, during the entire year, snow falls for 62.3 days and aggregates up to 37.83" (961mm) 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 the month, sunrise is at 7:18 am and sunset at 4:00 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:08 pm PST.

Sunshine

The month with the least sunshine is December, with an average of 3.9h of sunshine.

UV index

The months with the lowest UV index are February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 1 turns into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. 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. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

What time of the year is the coldest?

In Airway Heights, December is the month with the lowest recorded average temperatures, measuring a high of 32.2°F (0.1°C) and a low of 22.1°F (-5.5°C).

How cold is it in December?

The high-temperature, in December, in Airway Heights, is 32.2°F (0.1°C), while the low-temperature averages to 22.1°F (-5.5°C). In July, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 82.4°F (28°C).

What is the average humidity in December?

In December, the average relative humidity is 86%.

How many days does it rain in December?

In December, the rain falls for 9.6 days. Throughout December, 2.09" (53mm) of precipitation is accumulated.

How many days does it snow in December?

In Airway Heights, Washington, during December, snow falls for 15.6 days and regularly aggregates up to 8.74" (222mm) of snow.

What is the month with the shortest days?

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

What is the average length of the day in December?

In December, the average day length is 8h and 30min.

What time are sunrise and sunset in December in Airway Heights?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 4:08 pm PST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 3.9h of sunshine.

How many hours of sunshine does Airway Heights have in December?

In December, the average sunshine duration is 3.9h.

What is the month with the lowest UV index?

February and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December?

In Airway Heights, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Airway Heights, WA

Average temperature in December - Airway Heights, WA
  • Average high temperature in December: 32.2°F

The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (32.2°F).

  • Average low temperature in December: 22.1°F

The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

Average pressure in December
Airway Heights, WA

Average pressure in December - Airway Heights, 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 (29.9"Hg).

Average wind speed in December
Airway Heights, WA

Average wind speed in December - Airway Heights, WA
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in December
Airway Heights, WA

Average humidity in December - Airway Heights, WA
  • Average humidity in December: 86%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).

Average rainfall in December
Airway Heights, WA

Average rainfall in December - Airway Heights, WA
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is March (2.13").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in December
Airway Heights, WA

Average rainfall days in December - Airway Heights, WA
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is July (4.9 days).

Average snowfall in December
Airway Heights, WA

Average snowfall in December - Airway Heights, WA
  • Average snowfall in December: 8.74"

The month with the highest snowfall is January (10.39").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Airway Heights, WA

Average snowfall days in December - Airway Heights, WA
  • Average snowfall days in December: 15.6 days

The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in December /
Average sunshine in December
Airway Heights, WA

Average daylight in December / Average sunshine in December - Airway Heights, 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: 3h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

Average sunshine days in December
Airway Heights, WA

Average sunshine days in December - Airway Heights, WA
  • Average sunshine days in December: 12 days

The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is March (9.8 days).

Average UV index in December
Airway Heights, WA

Average UV index in December - Airway Heights, WA
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in December
Airway Heights, WA

Average cloud cover in December - Airway Heights, WA
  • Average cloud cover in December: 59

The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).

Average visibility in December
Airway Heights, WA

Average visibility in December - Airway Heights, 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).

Airway Heights, Washington, USA

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