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
During the coldest month, December, temperatures average a high of 58.5°F (14.7°C) and a low of 41.4°F (5.2°C).Humidity
The months with the highest humidity are January, February and December, with an average relative humidity of 59%.Rainfall
December is the month with the most rainfall. Rain falls for 6.3 days and accumulates 1.02" (26mm) of precipitation.Snowfall
In Greenacres, snow does not fall in January, March through December.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December in Greenacres, sunrise is at 6:47 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 4:54 pm PST.
Sunshine
The months with the least sunshine are January and December, with an average of 6.7h of sunshine.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What is the temperature in December?
What are the most humid months?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in Greenacres in December?
When it does not snow?
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?
What are the months with the least sunshine?
How many hours of sunshine does Greenacres have in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Greenacres?
Average temperature in December
Greenacres, CA
- Average high temperature in December: 58.5°F
The warmest month (with the highest average high temperature) is July (97.5°F).
The month with the lowest average high temperature is December (58.5°F).
- Average low temperature in December: 41.4°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in December
Greenacres, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Greenacres, CA
- Average wind speed in December: 3.9mph
The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are November and December (3.9mph).
Average humidity in December
Greenacres, CA
- Average humidity in December: 59%
The months with the highest relative humidity are January, February and December (59%).
The month with the lowest relative humidity is August (30%).
Average rainfall in December
Greenacres, CA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is December (1.02").
The driest months (with the least rainfall) are June, August and September (0.08").
Average rainfall days in December
Greenacres, CA
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in December
Greenacres, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Greenacres, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Greenacres, 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: 6h and 4min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Greenacres, CA
- Average sunshine days in December: 23.5 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (21.2 days).
Average UV index in December
Greenacres, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Greenacres, CA
- Average cloud cover in December: 25
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in December
Greenacres, 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).
Greenacres, California, USA
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