Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
In Spokane, 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 December, the average relative humidity in Spokane, Washington, is 86%.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. In Spokane, during the entire year, the rain falls for 127.8 days and collects up to 16.93" (430mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In December, it is snowing for 15.6 days. Throughout December, 8.74" (222mm) of snow is accumulated. In Spokane, Washington, during the entire year, snow falls for 62.3 days and aggregates up to 37.83" (961mm) of snow.Daylight
The month with the shortest days in Spokane is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:00 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:08 pm PST.
Sunshine
The month with the least sunshine in Spokane is December, with an average of 3.9h of sunshine.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index in Spokane. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What month is the coldest in Spokane?
How cold is it in Spokane in December?
What is the average humidity in December in Spokane?
How many days does it rain in December in Spokane?
How many days does it snow in December in Spokane?
What is the month with the shortest days in Spokane?
How many hours of daylight does Spokane have in December?
When is the sunrise / sunset in December in Spokane?
What is the month with the least sunshine in Spokane?
How long on average sun shines in December in Spokane?
What is the month with the lowest UV index in Spokane?
How high is the UV index in December in Spokane?
Average temperature in December
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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
Spokane, 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).
Spokane, Washington, USA
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