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
Sunnyside's December reports an average high-temperature of a freezing cold 31.8°F (-0.1°C), exhibiting a minor difference from November. December nighttime temperatures hover close to the daytime peak with an average of 27.3°F (-2.6°C).Humidity
In Sunnyside, the average relative humidity in December is 87%.Rainfall
In Sunnyside, in December, during 12.8 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. Throughout the year, there are 182.7 rainfall days, and 37.4" (950mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 11.9 days. Throughout December, 11.18" (284mm) of snow is accumulated. Throughout the year, there are 60.8 snowfall days, and 53.78" (1366mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 6h and 36min of daylight.On the first day of the month, sunrise is at 8:26 am and sunset at 3:22 pm. On the last day of December, sunrise is at 8:50 am and sunset at 3:26 pm AKST.
Sunshine
The months with the least sunshine are January and December, with an average of 2.9h of sunshine.UV index
November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
What are the months with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Sunnyside, AK
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (57.2°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is February (25.9°F).
Average pressure in December
Sunnyside, AK
- Average pressure in December: 29.83"Hg
The month with the highest atmospheric pressure is July (30.03"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).
Average wind speed in December
Sunnyside, AK
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7mph).
The calmest months (with the lowest average wind speed) are June and July (3.7mph).
Average humidity in December
Sunnyside, AK
- Average humidity in December: 87%
The month with the highest relative humidity is August (90%).
The month with the lowest relative humidity is November (84%).
Average rainfall in December
Sunnyside, AK
- Average rainfall in December: 3.58"
The wettest months (with the highest rainfall) are October and November (4.21").
The driest month (with the least rainfall) is May (1.61").
Average rainfall days in December
Sunnyside, AK
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in December
Sunnyside, AK
- Average snowfall in December: 11.18"
The month with the highest snowfall is January (11.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Sunnyside, AK
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is March (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sunnyside, AK
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 36min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is June (Average sunshine: 7h and 42min).
The months with the least sunshine are January and December (Average sunshine: 2h and 54min).
Average sunshine days in December
Sunnyside, AK
- Average sunshine days in December: 10.5 days
The months with the most sunshine days are February and May (12.5 days).
The month with the least sunshine days is June (7.7 days).
Average UV index in December
Sunnyside, 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
Sunnyside, AK
- Average cloud cover in December: 70
The month with the most cloud cover is November (Cloud cover 71).
The month with the least cloud cover is May (Cloud cover 56).
Average visibility in December
Sunnyside, AK
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).
Sunnyside, Alaska, USA
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