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
As November turns into December, the average high-temperatures rest at a still subzero cold 21.7°F (-5.7°C), showing a minor variation from the prior month. Knik experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 13.8°F (-10.1°C) throughout December.Humidity
The average relative humidity in December is 86%.Rainfall
In December, the rain falls for 8.7 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In Knik, during the entire year, the rain falls for 137.5 days and collects up to 11.97" (304mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 11.2 days and accumulates 5.67" (144mm) of snow.Daylight
With an average of 5h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 9:48 am and sunset at 3:47 pm. On the last day of December, sunrise is at 10:15 am and sunset at 3:49 pm AKST.
Sunshine
With an average of 3.8h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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 many days 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?
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 in Knik?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Knik, AK
- Average high temperature in December: 21.7°F
The warmest month (with the highest average high temperature) is July (64.8°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in December: 13.8°F
The month with the highest average low temperature is July (50.2°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in December
Knik, AK
- Average pressure in December: 29.68"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.68"Hg).
Average wind speed in December
Knik, AK
- Average wind speed in December: 4.8mph
The windiest month (with the highest average wind speed) is November (4.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in December
Knik, AK
- Average humidity in December: 86%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (64%).
Average rainfall in December
Knik, AK
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is September (1.77").
The driest months (with the least rainfall) are April and May (0.59").
Average rainfall days in December
Knik, AK
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is February (7.4 days).
Average snowfall in December
Knik, AK
- Average snowfall in December: 5.67"
The month with the highest snowfall is December (5.67").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Knik, AK
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is December (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Knik, AK
- Average daylight in December: 5h and 3min
The month with the longest days is June (Average daylight: 19h and 18min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is May (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in December
Knik, AK
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is January (17 days).
The month with the least sunshine days is August (11.6 days).
Average UV index in December
Knik, AK
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 4).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Knik, AK
- Average cloud cover in December: 45
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in December
Knik, AK
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Knik, Alaska, USA
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