December weather forecastTrinity Center, CA
December
Weather in December
December, the first month of the winter in Trinity Center, is also a frosty month, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 34°F (1.1°C).Temperature
In Trinity Center, the lowest average temperatures are observed in December, with a high of 48°F (8.9°C) and a low of 34°F (1.1°C).Humidity
The average relative humidity in December in Trinity Center, California, is 74%.Rainfall
In Trinity Center, in December, it is raining for 13.2 days, with typically 3.74" (95mm) of accumulated precipitation. In Trinity Center, during the entire year, the rain falls for 103.6 days and collects up to 25.28" (642mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Trinity Center, California, in December, during 1.1 snowfall days, 1.1" (28mm) of snow is typically accumulated. In Trinity Center, during the entire year, snow falls for 4.7 days and aggregates up to 4.45" (113mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:52 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.4h of sunshine.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trinity Center, CA
- Average high temperature in December: 48°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (48°F).
- Average low temperature in December: 34°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure in December
Trinity Center, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in December
Trinity Center, CA
- Average wind speed in December: 4.7mph
The windiest months (with the highest average wind speed) are March and October (5.3mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).
Average humidity in December
Trinity Center, CA
- Average humidity in December: 74%
The month with the highest relative humidity is March (77%).
The month with the lowest relative humidity is August (37%).
Average rainfall in December
Trinity Center, CA
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is March (4.8").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in December
Trinity Center, CA
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.7 days).
Average snowfall in December
Trinity Center, CA
- Average snowfall in December: 1.1"
The month with the highest snowfall is November (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Trinity Center, CA
- Average snowfall days in December: 1.1 days
The month with the highest number of snowfall days is February (1.9 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
Trinity Center, CA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in December
Trinity Center, CA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in December
Trinity Center, CA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in December
Trinity Center, CA
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in December
Trinity Center, CA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
