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 notes an average high-temperature of a still freezing cold 21.9°F (-5.6°C), subtly differing from November's 27°F (-2.8°C). In Port Chilkoot, December is characterized by an average low-temperature of 14.4°F (-9.8°C), indicating a minor drop from daytime highs.Humidity
The average relative humidity in December is 90%.Rainfall
In Port Chilkoot, in December, it is raining for 12.6 days, with typically 5.47" (139mm) of accumulated precipitation. In Port Chilkoot, during the entire year, the rain falls for 200.4 days and collects up to 48.03" (1220mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Port Chilkoot. December is the month with the most snowfall in Port Chilkoot. Snow falls for 17.1 days and accumulates 21.06" (535mm) of snow.Daylight
The month with the shortest days in Port Chilkoot is December, with an average of 6h and 18min of daylight.On the first day of December in Port Chilkoot, sunrise is at 8:32 am and sunset at 3:10 pm. On the last day of the month, sunrise is at 8:56 am and sunset at 3:13 pm AKST.
Sunshine
January and December, with an average of 3.7h of sunshine, are months with the least sunshine.UV index
February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Port Chilkoot. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 1 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To protect against the Sun's most potent rays, avoid direct exposure around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
How cold is December in Port Chilkoot?
What is the average humidity in December in Port Chilkoot?
How many days does it rain in December in Port Chilkoot?
What is the snowiest month in Port Chilkoot?
How many days does it snow in December in Port Chilkoot?
What is the month with the shortest days in Port Chilkoot?
How many hours of daylight does Port Chilkoot have in December?
When is the sunrise / sunset in December in Port Chilkoot?
What are the months with the least sunshine in Port Chilkoot?
How many hours of sunshine does Port Chilkoot have in December?
What is the month with the lowest UV index in Port Chilkoot?
How high is the UV index in December in Port Chilkoot?
Average temperature in December
Port Chilkoot, AK
- Average high temperature in December: 21.9°F
The warmest month (with the highest average high temperature) is July (56.5°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 14.4°F
The month with the highest average low temperature is August (44.1°F).
The coldest month (with the lowest average low temperature) is February (12.4°F).
Average pressure in December
Port Chilkoot, AK
- Average pressure in December: 29.87"Hg
The month with the highest atmospheric pressure is July (30.01"Hg).
The month with the lowest atmospheric pressure is November (29.81"Hg).
Average wind speed in December
Port Chilkoot, AK
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is May (4.7mph).
Average humidity in December
Port Chilkoot, AK
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Port Chilkoot, AK
- Average rainfall in December: 5.47"
The wettest month (with the highest rainfall) is November (5.87").
The driest month (with the least rainfall) is June (2.2").
Average rainfall days in December
Port Chilkoot, AK
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is October (20.2 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in December
Port Chilkoot, AK
- Average snowfall in December: 21.06"
The month with the highest snowfall is December (21.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Port Chilkoot, AK
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Port Chilkoot, AK
- Average daylight in December: 6h and 2min
The month with the longest days is June (Average daylight: 18h and 30min).
The month with the shortest days is December (Average daylight: 6h and 18min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 42min).
Average sunshine days in December
Port Chilkoot, AK
- Average sunshine days in December: 8.9 days
The month with the most sunshine days is February (10.4 days).
The month with the least sunshine days is June (6.3 days).
Average UV index in December
Port Chilkoot, AK
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Port Chilkoot, AK
- Average cloud cover in December: 63
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in December
Port Chilkoot, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Port Chilkoot, Alaska, USA
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