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
Whittier's weather, upon December's arrival, documents an average high-temperature of a still freezing cold 22.8°F (-5.1°C), nearly identical to the prior month. Whittier, during the nights of December, experiences an average temperature drop to a frigid cold 13.6°F (-10.2°C).Humidity
The average relative humidity in December is 91%.Rainfall
In December, the rain falls for 11.1 days. Throughout December, 12.09" (307mm) of precipitation is accumulated. Throughout the year, there are 199.9 rainfall days, and 94.88" (2410mm) of precipitation is accumulated.Snowfall
Months with snowfall in Whittier are January through May, September through December. The month with the most snowfall is December, when snow falls for 21.9 days and typically aggregates up to 46.38" (1178mm) of snow.Daylight
December has the shortest days of the year in Whittier, with an average of 5h and 48min of daylight.On the first day of the month, sunrise is at 9:38 am and sunset at 3:50 pm. On the last day of December, in Whittier, Alaska, sunrise is at 10:04 am and sunset at 3:52 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 2h of sunshine.UV index
The months with the lowest UV index are January, February, April, October through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
How cold is December in Whittier?
What is the average humidity in December in Whittier?
How many days does it rain in December in Whittier?
When does it snow the most in Whittier?
How many days does it snow in December in Whittier?
What is the month with the shortest days in Whittier?
How many hours of daylight does Whittier have in December?
When are sunrise and sunset in December in Whittier?
What is the month with the least sunshine in Whittier?
How long on average sun shines in December in Whittier?
When is the lowest UV index in Whittier?
What is the UV index intensity in December in Whittier?
Average temperature in December
Whittier, AK
- Average high temperature in December: 22.8°F
The warmest month (with the highest average high temperature) is July (55°F).
The month with the lowest average high temperature is January (20.1°F).
- Average low temperature in December: 13.6°F
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in December
Whittier, AK
- Average pressure in December: 29.66"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).
Average wind speed in December
Whittier, AK
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is November (6.1mph).
The calmest month (with the lowest average wind speed) is July (4.1mph).
Average humidity in December
Whittier, AK
- Average humidity in December: 91%
The months with the highest relative humidity are March and April (92%).
The month with the lowest relative humidity is June (82%).
Average rainfall in December
Whittier, AK
- Average rainfall in December: 12.09"
The wettest month (with the highest rainfall) is October (12.13").
The driest month (with the least rainfall) is June (3.9").
Average rainfall days in December
Whittier, AK
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in December
Whittier, AK
- Average snowfall in December: 46.38"
The month with the highest snowfall is December (46.38").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Whittier, AK
- Average snowfall days in December: 21.9 days
The month with the highest number of snowfall days is December (21.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Whittier, 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
The month with the most sunshine is June (Average sunshine: 8h).
The month with the least sunshine is December (Average sunshine: 2h).
Average sunshine days in December
Whittier, AK
- Average sunshine days in December: 5.7 days
The month with the most sunshine days is January (9.3 days).
The month with the least sunshine days is April (5.6 days).
Average UV index in December
Whittier, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, April, October, November and December (UV index 1).
Average cloud cover in December
Whittier, AK
- Average cloud cover in December: 71
The month with the most cloud cover is December (Cloud cover 71).
The months with the least cloud cover are March and June (Cloud cover 60).
Average visibility in December
Whittier, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).
Whittier, Alaska, USA
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