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
December is the month when Nass experiences its coldest temperatures, averaging a high of 36.5°F (2.5°C) and a low of 25.5°F (-3.6°C).Humidity
In Nass, the average relative humidity in December is 81%.Rainfall
In Nass, in December, during 6.9 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. In Nass, during the entire year, the rain falls for 78 days and collects up to 3.39" (86mm) of precipitation.Snowfall
January through March, September, November and December are months with snowfall in Nass. The months with the most snowfall in Nass are January, February and December, with an average 0.94" (24mm) of accumulated snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:24 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:24 pm PST.
Sunshine
In December, the average sunshine in Nass is 5.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Nass?
How cold is December in Nass?
What is the average humidity in December in Nass?
How much does it rain in Nass in December?
When does it snow the most in Nass?
How much does it snow in Nass in December?
What is the month with the shortest days in Nass?
How many hours of daylight does Nass have in December?
When is the sunrise / sunset in December in Nass?
How many hours of sunshine does Nass have in December?
What are the months with the lowest UV index in Nass?
What is the UV index intensity in December in Nass?
Average temperature in December
Nass, WA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in December
Nass, WA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Nass, WA
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is December (4.8mph).
Average humidity in December
Nass, WA
- Average humidity in December: 81%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (38%).
Average rainfall in December
Nass, WA
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is May (0.63").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Nass, WA
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is March (9.9 days).
The months with the least rainy days are July and August (2.8 days).
Average snowfall in December
Nass, WA
- Average snowfall in December: 0.94"
The months with the highest snowfall are January, February and December (0.94").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days in December
Nass, WA
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is December (4.7 days).
The months with the least snowfall days are April, May, June, July, August and October (0 days).
Average daylight in December /
Average sunshine in December
Nass, WA
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in December
Nass, WA
- Average sunshine days in December: 19.4 days
The month with the most sunshine days is July (26.6 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in December
Nass, WA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Nass, WA
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 9).
Average visibility in December
Nass, WA
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Nass, Washington, USA
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