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 is the month that records the lowest temperatures, with averages ranging from a high of 54.3°F (12.4°C) to a low of 38.7°F (3.7°C).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 48%.Rainfall
The month with the most rainfall is December, when the rain falls for 5.6 days and typically aggregates up to 0.55" (14mm) of precipitation.Snowfall
In Apollo, snow does not fall in February through October and December.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of December in Apollo, sunrise is at 6:38 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 4:45 pm PST.
Sunshine
The average sunshine in December is 7.2h.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 3 during December morphs into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the average December temperature?
What are the most humid months?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Apollo have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Apollo, CA
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in December: 38.7°F
The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is December (38.7°F).
Average pressure in December
Apollo, CA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed in December
Apollo, CA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is May (12.6mph).
The calmest month (with the lowest average wind speed) is January (6.3mph).
Average humidity in December
Apollo, CA
- Average humidity in December: 48%
The months with the highest relative humidity are January and December (48%).
The month with the lowest relative humidity is August (23%).
Average rainfall in December
Apollo, CA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is December (0.55").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Apollo, CA
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is December (5.6 days).
The month with the least rainy days is June (0.2 days).
Average snowfall in December
Apollo, CA
- Average snowfall in December: 0"
The month with the highest snowfall is November (0.39").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and December (0").
Average snowfall days in December
Apollo, CA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Apollo, CA
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 7h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in December
Apollo, CA
- Average sunshine days in December: 24.8 days
The month with the most sunshine days is June (29.8 days).
The month with the least sunshine days is February (22.8 days).
Average UV index in December
Apollo, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in December
Apollo, CA
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are June, August and September (Cloud cover 5).
Average visibility in December
Apollo, 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).
Apollo, California, USA
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