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 onset brings a negligible change in high-temperatures, falling from 23.2°F (-4.9°C) in November to a still freezing cold 16.7°F (-8.5°C). Napaskiak's nighttime temperatures in December display a slight drop from daytime highs, averaging to an extreme cold 7.9°F (-13.4°C).Humidity
In Napaskiak, the average relative humidity in December is 90%.Rainfall
In Napaskiak, in December, during 5.6 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Napaskiak, during the entire year, the rain falls for 129.5 days and collects up to 16.46" (418mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Napaskiak, in December, during 12.8 snowfall days, 3.5" (89mm) of snow is typically accumulated. In Napaskiak, during the entire year, snow falls for 74.8 days and aggregates up to 22.91" (582mm) of snow.Daylight
The month with the shortest days is December, with an average of 5h and 48min of daylight.On the first day of December, sunrise is at 10:29 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 10:55 am and sunset at 4:45 pm AKST.
Sunshine
The month with the least sunshine is December, with an average of 2.7h of sunshine.UV index
The months with the lowest UV index are February, March and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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 many days 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?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Napaskiak, AK
- Average high temperature in December: 16.7°F
The warmest month (with the highest average high temperature) is July (62.4°F).
The month with the lowest average high temperature is January (12.2°F).
- Average low temperature in December: 7.9°F
The month with the highest average low temperature is July (49.6°F).
The coldest month (with the lowest average low temperature) is January (3.7°F).
Average pressure in December
Napaskiak, AK
- Average pressure in December: 29.64"Hg
The month with the highest atmospheric pressure is July (29.92"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed in December
Napaskiak, AK
- Average wind speed in December: 12.1mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in December
Napaskiak, AK
- Average humidity in December: 90%
The months with the highest relative humidity are January, February and March (91%).
The month with the lowest relative humidity is June (65%).
Average rainfall in December
Napaskiak, AK
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (2.09").
The driest months (with the least rainfall) are January and April (0.91").
Average rainfall days in December
Napaskiak, AK
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is August (19.7 days).
The month with the least rainy days is March (4.4 days).
Average snowfall in December
Napaskiak, AK
- Average snowfall in December: 3.5"
The month with the highest snowfall is February (4.96").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Napaskiak, AK
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Napaskiak, AK
- Average daylight in December: 5h and 5min
The month with the longest days is June (Average daylight: 19h and 0min).
The month with the shortest days is December (Average daylight: 5h and 48min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 42min).
Average sunshine days in December
Napaskiak, AK
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is March (17.5 days).
The month with the least sunshine days is August (8.6 days).
Average UV index in December
Napaskiak, AK
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 3).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in December
Napaskiak, AK
- Average cloud cover in December: 62
The months with the most cloud cover are July and August (Cloud cover 67).
The month with the least cloud cover is June (Cloud cover 54).
Average visibility in December
Napaskiak, AK
- Average visibility in December: 6mi
The months with the highest visibility are May, June, July, August, September, October and December (6mi).
The months with the lowest visibility are January, February, March, April and November (5mi).
Napaskiak, Alaska, USA
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