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
Port Graham sees the arrival of December with an average high-temperature of a still wintry 32.2°F (0.1°C), indicating a subtle variation from November. Port Graham encounters an average temperature dip to a freezing cold 27.3°F (-2.6°C) throughout December, subtly lower than its daytime maximum.Humidity
The average relative humidity in December in Port Graham is 83%.Rainfall
The month with the most rainfall in Port Graham is December, when the rain falls for 14.5 days and typically aggregates up to 5.2" (132mm) of precipitation.Snowfall
Months with snowfall in Port Graham are January through May, September through December. In Port Graham, in December, snow falls for 12.6 days, with typically accumulated 8.07" (205mm) of snow. Throughout the year, in Port Graham, there are 70.1 snowfall days, and 38.58" (980mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 12min of daylight.On the first day of the month, sunrise is at 9:38 am and sunset at 4:14 pm. On the last day of December, sunrise is at 10:03 am and sunset at 4:17 pm AKST.
Sunshine
With an average of 2.5h of sunshine, December has the least sunshine of the year in Port Graham.UV index
The months with the lowest UV index in Port Graham, Alaska, are January through May, October through 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 the average person.Note: In December, the UV index of 2 transforms into the following advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
How cold is it in Port Graham in December?
What is the average humidity in December in Port Graham?
What is the wettest month in Port Graham?
How much does it rain in Port Graham in December?
How many days does it snow in December in Port Graham?
What is the month with the shortest days in Port Graham?
How many hours of daylight does Port Graham have in December?
When is the sunrise / sunset in December in Port Graham?
What is the month with the least sunshine in Port Graham?
How many hours of sunshine does Port Graham have in December?
What is the month with the lowest UV index in Port Graham?
How high is the UV index in December in Port Graham?
Average temperature in December
Port Graham, AK
- Average high temperature in December: 32.2°F
The warmest months (with the highest average high temperature) are July and August (55.9°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is August (50.4°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in December
Port Graham, AK
- Average pressure in December: 29.6"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.6"Hg).
Average wind speed in December
Port Graham, AK
- Average wind speed in December: 12.2mph
The windiest month (with the highest average wind speed) is December (12.2mph).
The calmest month (with the lowest average wind speed) is June (6.2mph).
Average humidity in December
Port Graham, AK
- Average humidity in December: 83%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are May and November (78%).
Average rainfall in December
Port Graham, AK
- Average rainfall in December: 5.2"
The wettest month (with the highest rainfall) is December (5.2").
The driest month (with the least rainfall) is June (1.38").
Average rainfall days in December
Port Graham, AK
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is September (18.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Port Graham, AK
- Average snowfall in December: 8.07"
The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Port Graham, AK
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is February (13.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Port Graham, AK
- Average daylight in December: 6h and 1min
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 12min).
- Average sunshine in December: 2h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 2h and 30min).
Average sunshine days in December
Port Graham, AK
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is July (13.7 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in December
Port Graham, AK
- Average UV index in December: 2
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 2).
Average cloud cover in December
Port Graham, AK
- Average cloud cover in December: 64
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 51).
Average visibility in December
Port Graham, 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).
Port Graham, Alaska, USA
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