December weather forecastChiniak, AK
December
Weather in December
The first month of the winter, December, is also a wintry month in Chiniak, Alaska, with an average temperature fluctuating between 32°F (0°C) and 36.9°F (2.7°C).Temperature
In Chiniak, December's average high-temperature stands at a still icy 36.9°F (2.7°C), closely related to the preceding month. During the month of December, Chiniak identifies an average nighttime low-temperature of 32°F (0°C), slightly lower than its daytime counterpart.Humidity
In December, the average relative humidity is 82%.Rainfall
In December, the rain falls for 14.8 days. Throughout December, 4.29" (109mm) of precipitation is accumulated. Throughout the year, there are 171.2 rainfall days, and 37.32" (948mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 5.1 days. Throughout December, 2.32" (59mm) of snow is accumulated. In Chiniak, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.Daylight
December has the shortest days of the year, with an average of 6h and 42min of daylight.On the first day of the month, sunrise is at 9:27 am and sunset at 4:29 pm. On the last day of December, sunrise is at 9:51 am and sunset at 4:33 pm AKST.
Sunshine
January and December, with an average of 2.6h of sunshine, are months with the least sunshine.UV index
In December, the average daily maximum UV index in Chiniak is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chiniak, AK
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).
Average pressure in December
Chiniak, AK
- Average pressure in December: 29.55"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).
Average wind speed in December
Chiniak, AK
- Average wind speed in December: 14.2mph
The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Chiniak, AK
- Average humidity in December: 82%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).
Average rainfall in December
Chiniak, AK
- Average rainfall in December: 4.29"
The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in December
Chiniak, AK
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).
Average snowfall in December
Chiniak, AK
- Average snowfall in December: 2.32"
The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Chiniak, AK
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Chiniak, AK
- Average daylight in December: 6h and 42min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in December: 2h and 36min
The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in December
Chiniak, AK
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Chiniak, AK
- Average UV index in December: 2
The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Chiniak, AK
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in December
Chiniak, AK
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
