December weather forecastAzusa, CA
December
Weather in December
December, the first month of the winter in Azusa, is still a refreshing month, with an average temperature fluctuating between 45.9°F (7.7°C) and 61.7°F (16.5°C).Temperature
Azusa's coldest month, December, registers temperatures that range from a high of 61.7°F (16.5°C) to a low of 45.9°F (7.7°C).Humidity
The average relative humidity in December in Azusa, California, is 52%.Rainfall
In December, the rain falls for 6.3 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. Throughout the year, in Azusa, there are 50.5 rainfall days, and 8.35" (212mm) of precipitation is accumulated.Snowfall
In Azusa, snow does not fall in January, March through December.Daylight
December has the shortest days of the year, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:39 am and sunset at 4:42 pm. On the last day of December, in Azusa, sunrise is at 6:57 am and sunset at 4:52 pm PST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.9h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 3 in December translates into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Azusa, CA
- Average high temperature in December: 61.7°F
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is December (61.7°F).
- Average low temperature in December: 45.9°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is December (45.9°F).
Average pressure in December
Azusa, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Azusa, CA
- Average wind speed in December: 5.2mph
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
Azusa, CA
- Average humidity in December: 52%
The month with the highest relative humidity is May (56%).
The month with the lowest relative humidity is November (45%).
Average rainfall in December
Azusa, CA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Azusa, CA
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is March (7 days).
The month with the least rainy days is June (1.3 days).
Average snowfall days in December
Azusa, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Azusa, CA
- Average daylight in December: 9h and 54min
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 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Azusa, CA
- Average sunshine days in December: 24.1 days
The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is February (21.3 days).
Average UV index in December
Azusa, CA
- Average UV index in December: 3
The month with the highest UV index is August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Azusa, 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
Azusa, 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).
