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 onset of December marks an average high-temperature of a still icy 36.9°F (2.7°C), hardly differing from November's 39.9°F (4.4°C). During the nights of December, Old Harbor records an average temperature of 32°F (0°C), a minor drop from daytime peaks.Humidity
In Old Harbor, the average relative humidity in December is 82%.Rainfall
In Old Harbor, in December, it is raining for 14.8 days, with typically 4.29" (109mm) of accumulated precipitation. In Old Harbor, during the entire year, the rain falls for 171.2 days and collects up to 37.32" (948mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. In Old Harbor, in December, snow falls for 5.1 days, with typically accumulated 2.32" (59mm) of snow. In Old Harbor, during the entire year, snow falls for 35.1 days and aggregates up to 13.74" (349mm) of snow.Daylight
December has the shortest days of the year in Old Harbor, with an average of 6h and 48min of daylight.On the first day of December, sunrise is at 9:29 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 9:52 am and sunset at 4:40 pm AKST.
Sunshine
January and December, with an average of 2.6h of sunshine, are months with the least sunshine in Old Harbor.UV index
In Old Harbor, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 2 in December suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in Old Harbor in December?
What is the average humidity in December in Old Harbor?
How many days does it rain in December in Old Harbor?
How many days does it snow in December in Old Harbor?
What is the month with the shortest days in Old Harbor?
What is the average length of the day in December in Old Harbor?
When is the sunrise / sunset in December in Old Harbor?
What are the months with the least sunshine in Old Harbor?
How many hours of sunshine does Old Harbor have in December?
What is the UV index intensity in December in Old Harbor?
Average temperature in December
Old Harbor, AK
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is August (57.6°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is August (50.7°F).
The coldest month (with the lowest average low temperature) is March (30.6°F).
Average pressure in December
Old Harbor, AK
- Average pressure in December: 29.55"Hg
The month with the highest atmospheric pressure is July (29.98"Hg).
The month with the lowest atmospheric pressure is December (29.55"Hg).
Average wind speed in December
Old Harbor, AK
- Average wind speed in December: 14.2mph
The windiest month (with the highest average wind speed) is December (14.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Old Harbor, AK
- Average humidity in December: 82%
The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are March and November (80%).
Average rainfall in December
Old Harbor, AK
- Average rainfall in December: 4.29"
The wettest months (with the highest rainfall) are October and November (4.53").
The driest month (with the least rainfall) is July (1.85").
Average rainfall days in December
Old Harbor, AK
- Average rainfall days in December: 14.8 days
The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is March (10.8 days).
Average snowfall in December
Old Harbor, AK
- Average snowfall in December: 2.32"
The month with the highest snowfall is March (3.15").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Old Harbor, AK
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is March (8.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Old Harbor, AK
- Average daylight in December: 6h and 5min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 8h and 18min).
The months with the least sunshine are January and December (Average sunshine: 2h and 36min).
Average sunshine days in December
Old Harbor, AK
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is July (14.7 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in December
Old Harbor, AK
- Average UV index in December: 2
The months with the highest UV index are June, July, August and September (UV index 3).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Old Harbor, AK
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in December
Old Harbor, AK
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Old Harbor, Alaska, USA
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