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's arrival shows an average high-temperature of a subzero cold 31.5°F (-0.3°C), hardly different from the previous month. Throughout December nights, Eyak records a consistent low-temperature averaging a still freezing cold 26.2°F (-3.2°C).Humidity
In December, the average relative humidity in Eyak is 81%.Rainfall
In December, the rain falls for 14.5 days. Throughout December, 8.98" (228mm) of precipitation is accumulated. In Eyak, during the entire year, the rain falls for 191.3 days and collects up to 72.4" (1839mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 12.9 days and typically aggregates up to 17.76" (451mm) of snow.Daylight
The month with the shortest days is December, with an average of 5h and 54min of daylight.On the first day of the month, sunrise is at 9:23 am and sunset at 3:40 pm. On the last day of December, sunrise is at 9:49 am and sunset at 3:42 pm AKST.
Sunshine
The month with the least sunshine is December, with an average of 2.1h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: In December, a regular UV index of 1 translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Stay sun-safe with clothing that is both closely woven and worn loosely. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Eyak, AK
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Eyak, AK
- Average pressure in December: 29.68"Hg
The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).
Average wind speed in December
Eyak, AK
- Average wind speed in December: 12mph
The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).
Average humidity in December
Eyak, AK
- Average humidity in December: 81%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Eyak, AK
- Average rainfall in December: 8.98"
The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").
Average rainfall days in December
Eyak, AK
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).
Average snowfall in December
Eyak, AK
- Average snowfall in December: 17.76"
The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Eyak, AK
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Eyak, AK
- Average daylight in December: 5h and 5min
The month with the longest days is June (Average daylight: 18h and 54min).
The month with the shortest days is December (Average daylight: 5h and 54min).
- Average sunshine in December: 2h and 1min
The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in December
Eyak, AK
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).
Average UV index in December
Eyak, 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 November and December (UV index 1).
Average cloud cover in December
Eyak, AK
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).
Average visibility in December
Eyak, AK
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, August and December (5mi).
Eyak, Alaska, USA
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