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
The shift into December in Girdwood uncovers an average high-temperature of a still subzero cold 20.1°F (-6.6°C), subtly different from the previous month. The month of December records an average low-temperature of 10.2°F (-12.1°C) in Girdwood, Alaska.Humidity
March and December, with an average relative humidity of 92%, are the most humid months in Girdwood.Rainfall
In Girdwood, in December, during 7.1 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. In Girdwood, during the entire year, the rain falls for 158.6 days and collects up to 23.62" (600mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. The month with the most snowfall is December, when snow falls for 17.6 days and typically aggregates up to 9.57" (243mm) of snow.Daylight
December has the shortest days of the year in Girdwood, with an average of 5h and 42min of daylight.On the first day of December in Girdwood, Alaska, sunrise is at 9:41 am and sunset at 3:50 pm. On the last day of the month, sunrise is at 10:07 am and sunset at 3:52 pm AKST.
Sunshine
The month with the least sunshine in Girdwood is December, with an average of 2.1h of sunshine.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Girdwood. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, a regular UV index of 1 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Girdwood?
What is the most humid month in Girdwood?
What is the average humidity in December in Girdwood?
How many days does it rain in December in Girdwood?
When does it snow the most in Girdwood?
How much does it snow in Girdwood in December?
What is the month with the shortest days in Girdwood?
What is the average length of the day in December in Girdwood?
When is the sunrise / sunset in December in Girdwood?
What is the month with the least sunshine in Girdwood?
How long on average sun shines in December in Girdwood?
What are the months with the lowest UV index in Girdwood?
What is the UV index reading in December in Girdwood?
Average temperature in December
Girdwood, AK
- Average high temperature in December: 20.1°F
The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 10.2°F
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in December
Girdwood, AK
- Average pressure in December: 29.67"Hg
The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is November (29.66"Hg).
Average wind speed in December
Girdwood, AK
- Average wind speed in December: 5.9mph
The windiest months (with the highest average wind speed) are November and December (5.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Girdwood, AK
- Average humidity in December: 92%
The months with the highest relative humidity are March and December (92%).
The month with the lowest relative humidity is June (79%).
Average rainfall in December
Girdwood, AK
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in December
Girdwood, AK
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Girdwood, AK
- Average snowfall in December: 9.57"
The month with the highest snowfall is December (9.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Girdwood, AK
- Average snowfall days in December: 17.6 days
The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Girdwood, AK
- Average daylight in December: 5h and 4min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in December
Girdwood, AK
- Average sunshine days in December: 9.8 days
The month with the most sunshine days is January (14.2 days).
The month with the least sunshine days is August (8 days).
Average UV index in December
Girdwood, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Girdwood, AK
- Average cloud cover in December: 70
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is May (Cloud cover 55).
Average visibility in December
Girdwood, AK
- Average visibility in December: 4mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (4mi).
Girdwood, Alaska, USA
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