December weather forecastLamont, CA
December
Weather in December
December, the first month of the winter in Lamont, is still a mild month, with an average temperature varying between 38.3°F (3.5°C) and 56.3°F (13.5°C).Temperature
Temperature readings reach their annual highs in December, averaging 56.3°F (13.5°C) and a minimum average of 38.3°F (3.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 58%.Rainfall
The month with the most rainfall is December, when the rain falls for 6.5 days and typically aggregates up to 1.22" (31mm) of precipitation.Snowfall
In Lamont, snow does not fall in January, March through December.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:04 am and sunset at 4:53 pm PST.
Sunshine
January and December, with an average of 6.9h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 3 translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lamont, CA
- Average high temperature in December: 56.3°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is December (56.3°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).
Average pressure in December
Lamont, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Lamont, CA
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is June (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in December
Lamont, CA
- Average humidity in December: 58%
The months with the highest relative humidity are February and December (58%).
The month with the lowest relative humidity is August (29%).
Average rainfall in December
Lamont, CA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is December (1.22").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in December
Lamont, CA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is June (1.4 days).
Average snowfall in December
Lamont, 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
Lamont, 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, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Lamont, CA
- Average daylight in December: 9h and 48min
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 54min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Lamont, CA
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (20.5 days).
Average UV index in December
Lamont, CA
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Lamont, CA
- Average cloud cover in December: 22
The month with the most cloud cover is March (Cloud cover 23).
The months with the least cloud cover are June, July, August and September (Cloud cover 5).
Average visibility in December
Lamont, 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).
