December weather forecastPort Safety, AK
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Port Safety, Alaska, with temperature in the range of an average low of 8.1°F (-13.3°C) and an average high of 15.3°F (-9.3°C).Temperature
The onset of December introduces a moderate change in Port Safety's weather, with average high-temperatures falling from November's freezing cold 24.8°F (-4°C) to a still subzero cold 15.3°F (-9.3°C). Port Safety, during December nights, records a temperature marginally cooler than the daytime average, at a frigid cold 8.1°F (-13.3°C).Humidity
In Port Safety, the average relative humidity in December is 87%.Rainfall
In Port Safety, in December, it is raining for 1.9 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 81.6 rainfall days, and 16.77" (426mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Port Safety, in December, during 11.3 snowfall days, 3.7" (94mm) of snow is typically accumulated. Throughout the year, there are 65.1 snowfall days, and 25" (635mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 4h and 12min of daylight.On the first day of December, sunrise is at 11:24 am and sunset at 4:13 pm. On the last day of the month, sunrise is at 11:55 am and sunset at 4:09 pm AKST.
Sunshine
The average sunshine in December in Port Safety is 2.4h.UV index
The months with the lowest UV index are January, October through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Safety, AK
- Average high temperature in December: 15.3°F
The warmest month (with the highest average high temperature) is July (54.3°F).
The month with the lowest average high temperature is January (10.4°F).
- Average low temperature in December: 8.1°F
The months with the highest average low temperature are July and August (48.7°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).
Average pressure in December
Port Safety, AK
- Average pressure in December: 29.73"Hg
The month with the highest atmospheric pressure is May (29.94"Hg).
The month with the lowest atmospheric pressure is October (29.7"Hg).
Average wind speed in December
Port Safety, AK
- Average wind speed in December: 11.7mph
The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest month (with the lowest average wind speed) is May (8mph).
Average humidity in December
Port Safety, AK
- Average humidity in December: 87%
The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is June (76%).
Average rainfall in December
Port Safety, AK
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is August (2.2").
The driest month (with the least rainfall) is May (0.71").
Average rainfall days in December
Port Safety, AK
- Average rainfall days in December: 1.9 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Port Safety, AK
- Average snowfall in December: 3.7"
The month with the highest snowfall is March (5.08").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Port Safety, AK
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is December (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Port Safety, AK
- Average daylight in December: 4h and 12min
The month with the longest days is June (Average daylight: 21h and 6min).
The month with the shortest days is December (Average daylight: 4h and 12min).
- Average sunshine in December: 2h and 24min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is June (Average sunshine: 0h and 36min).
Average sunshine days in December
Port Safety, AK
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is March (20.8 days).
The month with the least sunshine days is August (13.6 days).
Average UV index in December
Port Safety, AK
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are January, October, November and December (UV index 1).
Average cloud cover in December
Port Safety, AK
- Average cloud cover in December: 56
The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in December
Port Safety, AK
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
