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 brings an average high-temperature of a subzero cold 28°F (-2.2°C), showing a slight difference from November's 32.2°F (0.1°C). The temperature during December sees a subtle transition from day to night, averaging a low of 22.5°F (-5.3°C).Humidity
In Old Tyonek, the average relative humidity in December is 81%.Rainfall
In Old Tyonek, Alaska, in December, during 7.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. Throughout the year, there are 128.2 rainfall days, and 20.08" (510mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 11.9 days and accumulates 7.91" (201mm) of snow.Daylight
December has the shortest days of the year, with an average of 5h and 42min of daylight.On the first day of December, sunrise is at 9:50 am and sunset at 3:58 pm. On the last day of the month, sunrise is at 10:17 am and sunset at 3:59 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 2.9h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Around midday, solar radiation is most harmful; hence, exposure should be limited. 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. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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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 in Old Tyonek?
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?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Old Tyonek, AK
- Average high temperature in December: 28°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 (25.2°F).
- Average low temperature in December: 22.5°F
The month with the highest average low temperature is July (51.1°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Old Tyonek, AK
- Average pressure in December: 29.65"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.65"Hg).
Average wind speed in December
Old Tyonek, AK
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is December (11mph).
The calmest month (with the lowest average wind speed) is May (7.5mph).
Average humidity in December
Old Tyonek, AK
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Old Tyonek, AK
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is June (0.71").
Average rainfall days in December
Old Tyonek, AK
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is September (15.6 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in December
Old Tyonek, AK
- Average snowfall in December: 7.91"
The month with the highest snowfall is December (7.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Old Tyonek, AK
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is December (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Old Tyonek, 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 5min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in December
Old Tyonek, AK
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is June (18.7 days).
The month with the least sunshine days is September (13.1 days).
Average UV index in December
Old Tyonek, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Old Tyonek, AK
- Average cloud cover in December: 57
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is June (Cloud cover 40).
Average visibility in December
Old Tyonek, 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).
Old Tyonek, Alaska, USA
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