December weather forecastDeer Park, CA
December
Weather in December
December, the first month of the winter in Deer Park, is also a fresh month, with an average temperature fluctuating between 39.6°F (4.2°C) and 54.5°F (12.5°C).Temperature
Deer Park's coldest month, December, generally records average temperatures ranging from a high of 54.5°F (12.5°C) to a low of 39.6°F (4.2°C).Humidity
In December, the average relative humidity in Deer Park is 73%.Rainfall
In Deer Park, in December, it is raining for 11.3 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, in Deer Park, there are 76.2 rainfall days, and 16.93" (430mm) of precipitation is accumulated.Snowfall
In Deer Park, snow does not fall in January, February, April through December.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:09 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:59 pm PST.
Sunshine
With an average of 5.3h of sunshine, December has the least sunshine of the year in Deer Park, California.UV index
January, February, 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 vulnerability from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 3 suggests these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Deer Park, CA
- Average high temperature in December: 54.5°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in December: 39.6°F
The month with the highest average low temperature is September (54.3°F).
The coldest month (with the lowest average low temperature) is December (39.6°F).
Average pressure in December
Deer Park, CA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in December
Deer Park, CA
- Average wind speed in December: 4.6mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in December
Deer Park, CA
- Average humidity in December: 73%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (53%).
Average rainfall in December
Deer Park, CA
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is February (3.7").
The driest month (with the least rainfall) is July (0").
Average rainfall days in December
Deer Park, CA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (0.3 days).
Average snowfall in December
Deer Park, CA
- Average snowfall in December: 0"
The month with the highest snowfall is March (0.04").
The months with the least snowfall are January, February, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Deer Park, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is March (0.2 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Deer Park, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Deer Park, CA
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is July (30 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in December
Deer Park, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Deer Park, CA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in December
Deer Park, CA
- Average visibility in December: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
