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
Usk's December weather, with an average high temperature of 28.8°F (-1.8°C) and an average low temperature of 18°F (-7.8°C), tends to be the coldest of the year.Humidity
In Usk, the average relative humidity in December is 92%.Rainfall
In Usk, in December, during 8.3 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 130.2 rainfall days, and 24.17" (614mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall in Usk. In Usk, during December, snow falls for 21.7 days and regularly aggregates up to 20.04" (509mm) of snow. Throughout the year, there are 122.5 snowfall days, and 103.78" (2636mm) of snow is accumulated.Daylight
December has the shortest days of the year in Usk, with an average of 8h and 24min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 3:56 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:04 pm PST.
Sunshine
The average sunshine in December is 3.3h.UV index
The months with the lowest UV index in Usk are February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What time of the year is the coldest in Usk?
How cold is December in Usk?
What is the average humidity in December in Usk?
How much does it rain in Usk in December?
How many days does it snow in December in Usk?
What is the month with the shortest days in Usk?
What is the average length of the day in December in Usk?
When is the sunrise / sunset in December in Usk?
How long on average sun shines in December in Usk?
When is the lowest UV index in Usk?
What is the UV index intensity in December in Usk?
Average temperature in December
Usk, WA
- Average high temperature in December: 28.8°F
The warmest month (with the highest average high temperature) is August (80.2°F).
The month with the lowest average high temperature is December (28.8°F).
- Average low temperature in December: 18°F
The month with the highest average low temperature is August (50.2°F).
The coldest months (with the lowest average low temperature) are February and December (18°F).
Average pressure in December
Usk, WA
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Usk, WA
- Average wind speed in December: 3.3mph
The windiest month (with the highest average wind speed) is April (4.4mph).
The calmest month (with the lowest average wind speed) is December (3.3mph).
Average humidity in December
Usk, WA
- Average humidity in December: 92%
The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (51%).
Average rainfall in December
Usk, WA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is January (2.99").
The driest month (with the least rainfall) is August (0.51").
Average rainfall days in December
Usk, WA
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is April (17.2 days).
The months with the least rainy days are February and August (6.8 days).
Average snowfall in December
Usk, WA
- Average snowfall in December: 20.04"
The month with the highest snowfall is January (23.39").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Usk, WA
- Average snowfall days in December: 21.7 days
The month with the highest number of snowfall days is December (21.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Usk, WA
- Average daylight in December: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Usk, WA
- Average sunshine days in December: 9.4 days
The month with the most sunshine days is August (21.9 days).
The months with the least sunshine days are February, March and April (7.8 days).
Average UV index in December
Usk, WA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Usk, WA
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Usk, WA
- Average visibility in December: 3mi
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).
Usk, Washington, USA
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