December weather forecastClearlake Park, CA
December
Weather in December
December, the first month of the winter in Clearlake Park, is still a cool month, with temperature in the range of an average high of 52.7°F (11.5°C) and an average low of 38.1°F (3.4°C).Temperature
December, with an average high of 52.7°F (11.5°C) and a low of 38.1°F (3.4°C), signifies the coldest month of the year.Humidity
The average relative humidity in December in Clearlake Park is 72%.Rainfall
In Clearlake Park, in December, it is raining for 11.2 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 79.8 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Clearlake Park, in December, snow falls for 0.2 days, with typically accumulated 0.08" (2mm) of snow. Throughout the year, there are 1.8 snowfall days, and 0.98" (25mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:11 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:58 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.3h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Clearlake Park, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 38.1°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in December
Clearlake 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 and August (29.91"Hg).
Average wind speed in December
Clearlake Park, CA
- Average wind speed in December: 4.7mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in December
Clearlake Park, CA
- Average humidity in December: 72%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (44%).
Average rainfall in December
Clearlake Park, CA
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is February (3.7").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Clearlake Park, CA
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is March (13.9 days).
The months with the least rainy days are July and August (1.1 days).
Average snowfall in December
Clearlake Park, CA
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Clearlake Park, CA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is February (0.9 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
Clearlake Park, CA
- Average daylight in December: 9h and 30min
The month with the longest days is June (Average daylight: 14h and 54min).
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: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in December
Clearlake Park, CA
- Average sunshine days in December: 19 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in December
Clearlake Park, 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 November and December (UV index 2).
Average cloud cover in December
Clearlake Park, CA
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Clearlake Park, 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).
