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
Transition into December subtly marks a drop in the average high-temperature, moderately moving from an extreme cold 13.5°F (-10.3°C) in November to an extremely cold 7.7°F (-13.5°C). McGrath witnesses an average low-temperature of -3.3°F (-19.6°C) throughout the month of December.Humidity
In December, the average relative humidity is 93%.Rainfall
In McGrath, during December, the rain falls for 3.4 days and regularly aggregates up to 1.02" (26mm) of precipitation. In McGrath, Alaska, during the entire year, the rain falls for 111.7 days and collects up to 14.88" (378mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In McGrath, in December, during 15.5 snowfall days, 7.17" (182mm) of snow is typically accumulated. Throughout the year, there are 96.1 snowfall days, and 38.66" (982mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 4h and 54min of daylight.On the first day of the month, sunrise is at 10:27 am and sunset at 3:55 pm. On the last day of December, sunrise is at 10:56 am and sunset at 3:54 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 2.4h of sunshine.UV index
The months with the lowest UV index are January, March, October through December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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 much does it rain in December?
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?
How many hours of sunshine does McGrath have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
McGrath, AK
- Average high temperature in December: 7.7°F
The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is January (2.5°F).
- Average low temperature in December: -3.3°F
The month with the highest average low temperature is July (50°F).
The coldest month (with the lowest average low temperature) is January (-8°F).
Average pressure in December
McGrath, AK
- Average pressure in December: 29.75"Hg
The month with the highest atmospheric pressure is July (29.92"Hg).
The month with the lowest atmospheric pressure is October (29.72"Hg).
Average wind speed in December
McGrath, AK
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is May (5.9mph).
The calmest months (with the lowest average wind speed) are February, November and December (5.3mph).
Average humidity in December
McGrath, AK
- Average humidity in December: 93%
The month with the highest relative humidity is March (94%).
The month with the lowest relative humidity is June (62%).
Average rainfall in December
McGrath, AK
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (2.13").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
McGrath, AK
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
McGrath, AK
- Average snowfall in December: 7.17"
The month with the highest snowfall is November (10.16").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
McGrath, AK
- Average snowfall days in December: 15.5 days
The months with the highest number of snowfall days are March and November (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
McGrath, AK
- Average daylight in December: 4h and 5min
The month with the longest days is June (Average daylight: 20h and 6min).
The month with the shortest days is December (Average daylight: 4h and 54min).
- Average sunshine in December: 2h and 2min
The month with the most sunshine is May (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 24min).
Average sunshine days in December
McGrath, AK
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (9.6 days).
Average UV index in December
McGrath, AK
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, March, October, November and December (UV index 1).
Average cloud cover in December
McGrath, AK
- Average cloud cover in December: 65
The month with the most cloud cover is April (Cloud cover 68).
The months with the least cloud cover are May and June (Cloud cover 47).
Average visibility in December
McGrath, AK
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
McGrath, Alaska, USA
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