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
With the onset of December, Juneau experiences a modest temperature adjustment, with the average high-temperature receding from a chilly 46.2°F (7.9°C) in November to a cold 36.7°F (2.6°C). In Juneau, the nighttime temperature averages to a subzero cold 25.7°F (-3.5°C) during December.Humidity
In Juneau, the average relative humidity in December is 86%.Rainfall
In Juneau, in December, it is raining for 10.5 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Juneau, there are 151.9 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Snowfall
Months with snowfall in Juneau are January through May, October through December. In December, in Juneau, it is snowing for 14.6 days. Throughout December, 4.21" (107mm) of snow is accumulated. In Juneau, during the entire year, snow falls for 71 days and aggregates up to 22.32" (567mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Juneau, sunrise is at 7:21 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:58 pm EST.
Sunshine
The average sunshine in December is 2.6h.UV index
December is the month with the lowest UV index in Juneau, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Juneau in December?
What is the average humidity in December in Juneau?
How many days does it rain in December in Juneau?
How many days does it snow in December in Juneau?
What is the month with the shortest days in Juneau?
How many hours of daylight does Juneau have in December?
When are sunrise and sunset in December in Juneau?
How many hours of sunshine does Juneau have in December?
When is the lowest UV index in Juneau?
What is the UV index reading in December in Juneau?
Average temperature in December
Juneau, PA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Juneau, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Juneau, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Juneau, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Juneau, PA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in December
Juneau, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Juneau, PA
- Average snowfall in December: 4.21"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Juneau, PA
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Juneau, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Juneau, PA
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Juneau, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Juneau, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Juneau, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Juneau, Pennsylvania, USA
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