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 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
In Glendale, the lowest temperatures are generally noted in December, averaging a high of 62.4°F (16.9°C) and a low of 47.3°F (8.5°C).Humidity
The average relative humidity in December is 53%.Rainfall
In Glendale, during December, the rain falls for 6.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Glendale, during the entire year, the rain falls for 50.4 days and collects up to 8.35" (212mm) of precipitation.Snowfall
December is the only month when snow falls. The month with the most snowfall days is December, when snow falls for 0.1 days.Daylight
With an average of 9h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:41 am and sunset at 4:43 pm. On the last day of December, sunrise is at 6:58 am and sunset at 4:54 pm PST.
Sunshine
The months with the least sunshine in Glendale, California, are January, February and December, with an average of 6.9h of sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 4 in December transforms into this advice:
Ensure safety - Sun damage prevention is strongly urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Glendale?
What are December temperatures in Glendale?
What is the average humidity in December in Glendale?
How much does it rain in Glendale in December?
What is the snowiest month in Glendale?
When does it start to snow 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 are the months with the least sunshine in Glendale?
How long on average sun shines in December in Glendale?
When is the lowest UV index in Glendale?
What is the UV index reading in December in Glendale?
Average temperature in December
Glendale, CA
- Average high temperature in December: 62.4°F
The warmest month (with the highest average high temperature) is August (85.6°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in December: 47.3°F
The month with the highest average low temperature is August (64.8°F).
The coldest month (with the lowest average low temperature) is December (47.3°F).
Average pressure in December
Glendale, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Glendale, CA
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).
Average humidity in December
Glendale, CA
- Average humidity in December: 53%
The month with the highest relative humidity is June (60%).
The month with the lowest relative humidity is November (48%).
Average rainfall in December
Glendale, CA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is February (1.77").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Glendale, CA
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is March (7.1 days).
The month with the least rainy days is June (1.1 days).
Average snowfall days in December
Glendale, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Glendale, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Glendale, CA
- Average sunshine days in December: 23.7 days
The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21 days).
Average UV index in December
Glendale, CA
- Average UV index in December: 4
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).
Average cloud cover in December
Glendale, CA
- Average cloud cover in December: 21
The months with the most cloud cover are March and December (Cloud cover 21).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Glendale, CA
- 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).
Glendale, California, USA
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