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
December, characterized by an average high temperature of 45°F (7.2°C) and a low temperature of 31.3°F (-0.4°C), is generally the coldest month.Humidity
The months with the highest humidity in Glendale are January, February and December, with an average relative humidity of 85%.Rainfall
The months with the most rainfall are January and December, with an average 2.2" (56mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Glendale, Oregon, during December, snow falls for 4.7 days and regularly aggregates up to 3.35" (85mm) of snow. Throughout the year, there are 23.3 snowfall days, and 17.17" (436mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Glendale.On the first day of December, sunrise is at 7:25 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 4:50 pm PST.
Sunshine
With an average of 4.6h of sunshine, December has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
What are the coldest months in Glendale?
What is the usual temperature for Glendale in December?
What are the most humid months in Glendale?
What is the average humidity in December in Glendale?
What is the rainiest month in Glendale?
How many days does it rain in December in Glendale?
How many days does it snow in December in Glendale?
What is the month with the shortest days in Glendale?
What is the average length of the day in December in Glendale?
When are sunrise and sunset in December in Glendale?
What is the month with the least sunshine in Glendale?
How long on average sun shines in December in Glendale?
What are the months with the lowest UV index in Glendale?
What is the UV index intensity in December in Glendale?
Average temperature in December
Glendale, OR
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (45°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (31.3°F).
Average pressure in December
Glendale, OR
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed in December
Glendale, OR
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is January (4.1mph).
The calmest month (with the lowest average wind speed) is September (3.2mph).
Average humidity in December
Glendale, OR
- Average humidity in December: 85%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Glendale, OR
- Average rainfall in December: 2.2"
The wettest months (with the highest rainfall) are January and December (2.2").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Glendale, OR
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (13.1 days).
The month with the least rainy days is August (2.1 days).
Average snowfall in December
Glendale, OR
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (5").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Glendale, OR
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Glendale, OR
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in December
Glendale, OR
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in December
Glendale, OR
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Glendale, OR
- Average cloud cover in December: 54
The month with the most cloud cover is March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Glendale, OR
- Average visibility in December: 4mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Glendale, Oregon, USA
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