December weather forecastUmiat, AK
December
Weather in December
The first month of the winter, December, is a dangerously cold month in Umiat, Alaska, with temperature in the range of an average high of -7.8°F (-22.1°C) and an average low of -18.8°F (-28.2°C).Temperature
As December arrives, Umiat's weather displays a decrease in high-temperatures, transitioning from November's polar cold 3.6°F (-15.8°C) to a life-threatening cold -7.8°F (-22.1°C). During the month of December, Umiat's nighttime temperature lowers to an average of -18.8°F (-28.2°C).Humidity
The average relative humidity in December in Umiat is 92%.Rainfall
In December, the rain falls for 1.5 days. Throughout December, 0.39" (10mm) of precipitation is accumulated. In Umiat, during the entire year, the rain falls for 73.5 days and collects up to 8.39" (213mm) of precipitation.Snowfall
January through June, August through December are months with snowfall. In Umiat, in December, during 16.3 snowfall days, 2.83" (72mm) of snow is typically accumulated. Throughout the year, there are 139.2 snowfall days, and 28.35" (720mm) of snow is accumulated.Daylight
June and December, with an average of 0h and 0min of daylight, are months with the shortest days.Sunshine
December has the least sunshine of the year in Umiat, with an average of 0.4h of sunshine.UV index
January through April, September through December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Umiat, AK
- Average high temperature in December: -7.8°F
The warmest month (with the highest average high temperature) is July (63.7°F).
The month with the lowest average high temperature is January (-8.9°F).
- Average low temperature in December: -18.8°F
The month with the highest average low temperature is July (46.2°F).
The coldest month (with the lowest average low temperature) is January (-20.7°F).
Average pressure in December
Umiat, AK
- Average pressure in December: 29.98"Hg
The months with the highest atmospheric pressure are January and March (30.06"Hg).
The month with the lowest atmospheric pressure is September (29.83"Hg).
Average wind speed in December
Umiat, AK
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is June (8.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in December
Umiat, AK
- Average humidity in December: 92%
The months with the highest relative humidity are April and May (93%).
The month with the lowest relative humidity is July (65%).
Average rainfall in December
Umiat, AK
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is August (1.65").
The driest month (with the least rainfall) is January (0.28").
Average rainfall days in December
Umiat, AK
- Average rainfall days in December: 1.5 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is February (0.7 days).
Average snowfall in December
Umiat, AK
- Average snowfall in December: 2.83"
The month with the highest snowfall is October (5.08").
The month with the least snowfall is July (0").
Average snowfall days in December
Umiat, AK
- Average snowfall days in December: 16.3 days
The month with the highest number of snowfall days is November (19.2 days).
The month with the least snowfall days is July (0.1 days).
Average daylight in December /
Average sunshine in December
Umiat, AK
- Average daylight in December: 0h and 0min
The month with the longest days is August (Average daylight: 17h and 48min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in December: 0h and 24min
The month with the most sunshine is August (Average sunshine: 6h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in December
Umiat, AK
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is August (9.9 days).
Average UV index in December
Umiat, AK
- Average UV index in December: 1
The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 1).
Average cloud cover in December
Umiat, AK
- Average cloud cover in December: 74
The month with the most cloud cover is May (Cloud cover 75).
The month with the least cloud cover is June (Cloud cover 49).
Average visibility in December
Umiat, AK
- Average visibility in December: 3mi
The months with the highest visibility are June, July and August (6mi).
The month with the lowest visibility is December (3mi).
