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
At the start of December, Nikiski's average high-temperature reaches a still subzero cold 27°F (-2.8°C), subtly different from the preceding month. Nighttime temperatures hover around an average low of 21.2°F (-6°C) in December, a slight descent from daytime highs.Humidity
The average relative humidity in December is 85%.Rainfall
In Nikiski, in December, it is raining for 7.1 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 136.3 rainfall days, and 19.49" (495mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 12.7 days and accumulates 8.74" (222mm) 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 the month, sunrise is at 9:47 am and sunset at 4:01 pm. On the last day of December, sunrise is at 10:13 am and sunset at 4:03 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 2.9h of sunshine.UV index
In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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?
What is the snowiest month?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Nikiski have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Nikiski have in December?
What is the UV index reading in December?
Average temperature in December
Nikiski, AK
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is July (61.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (51.3°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Nikiski, AK
- Average pressure in December: 29.64"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed in December
Nikiski, AK
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is December (9.6mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Nikiski, AK
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is May (69%).
Average rainfall in December
Nikiski, AK
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is October (2.87").
The driest month (with the least rainfall) is June (0.91").
Average rainfall days in December
Nikiski, AK
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is September (16.6 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in December
Nikiski, AK
- Average snowfall in December: 8.74"
The month with the highest snowfall is December (8.74").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in December
Nikiski, AK
- Average snowfall days in December: 12.7 days
The month with the highest number of snowfall days is December (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Nikiski, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 54min).
Average sunshine days in December
Nikiski, AK
- Average sunshine days in December: 14 days
The month with the most sunshine days is June (16.6 days).
The month with the least sunshine days is September (11.5 days).
Average UV index in December
Nikiski, AK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Nikiski, AK
- Average cloud cover in December: 58
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 44).
Average visibility in December
Nikiski, AK
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Nikiski, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location