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
The transition from November to December brings an average high-temperature of a still subzero cold 21.6°F (-5.8°C), barely different from November's 25.7°F (-3.5°C). Birchwood experiences a nighttime temperature average of 12.6°F (-10.8°C) during December.Humidity
The average relative humidity in December is 86%.Rainfall
In Birchwood, in December, it is raining for 10.2 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, in Birchwood, Alaska, there are 147 rainfall days, and 13.27" (337mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Birchwood. The month with the most snowfall is December, when snow falls for 10.9 days and typically aggregates up to 5.98" (152mm) of snow.Daylight
December has the shortest days of the year in Birchwood, with an average of 5h and 36min of daylight.On the first day of the month, sunrise is at 9:46 am and sunset at 3:48 pm. On the last day of December, sunrise is at 10:12 am and sunset at 3:49 pm AKST.
Sunshine
With an average of 3.9h of sunshine, December has the least sunshine of the year.UV index
In December, the average daily maximum UV index in Birchwood is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
How cold is December in Birchwood?
What is the average humidity in December in Birchwood?
How much does it rain in Birchwood in December?
When does it snow the most in Birchwood?
How much does it snow in Birchwood in December?
What is the month with the shortest days in Birchwood?
What is the average length of the day in December in Birchwood?
When is the sunrise / sunset in December in Birchwood?
What is the month with the least sunshine in Birchwood?
How long on average sun shines in December in Birchwood?
What is the UV index reading in December in Birchwood?
Average temperature in December
Birchwood, AK
- Average high temperature in December: 21.6°F
The warmest month (with the highest average high temperature) is July (63.1°F).
The month with the lowest average high temperature is January (19°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is July (48.4°F).
The coldest month (with the lowest average low temperature) is January (9.7°F).
Average pressure in December
Birchwood, AK
- Average pressure in December: 29.69"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.69"Hg).
Average wind speed in December
Birchwood, AK
- Average wind speed in December: 4.6mph
The windiest months (with the highest average wind speed) are January and December (4.6mph).
The calmest month (with the lowest average wind speed) is July (4.1mph).
Average humidity in December
Birchwood, AK
- Average humidity in December: 86%
The months with the highest relative humidity are February and March (87%).
The month with the lowest relative humidity is May (65%).
Average rainfall in December
Birchwood, AK
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is May (0.63").
Average rainfall days in December
Birchwood, AK
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is August (18.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Birchwood, AK
- Average snowfall in December: 5.98"
The month with the highest snowfall is December (5.98").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Birchwood, AK
- Average snowfall days in December: 10.9 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Birchwood, AK
- Average daylight in December: 5h and 4min
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 36min).
- 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 54min).
Average sunshine days in December
Birchwood, AK
- Average sunshine days in December: 15.1 days
The month with the most sunshine days is January (17.2 days).
The month with the least sunshine days is August (10.2 days).
Average UV index in December
Birchwood, 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 February (UV index 1).
Average cloud cover in December
Birchwood, AK
- Average cloud cover in December: 44
The months with the most cloud cover are April, August and December (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 37).
Average visibility in December
Birchwood, AK
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is March (4mi).
Birchwood, Alaska, USA
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