December weather forecastRamona Bowl, CA
December
Weather in December
December, the first month of the winter in Ramona Bowl, is also a moderate month, with temperature in the range of an average low of 41°F (5°C) and an average high of 58.6°F (14.8°C).Temperature
December proves to be the coldest month, recording an average maximum temperature of 58.6°F (14.8°C) and a minimum temperature of 41°F (5°C).Humidity
In December, the average relative humidity in Ramona Bowl is 54%.Rainfall
In Ramona Bowl, in December, it is raining for 6 days, with typically 1.22" (31mm) of accumulated precipitation. Throughout the year, there are 54 rainfall days, and 6.61" (168mm) of precipitation is accumulated.Snowfall
December is the only month when snow falls. The month with the most snowfall is December, when snow falls for 0.1 days and typically aggregates up to 0.04" (1mm) of snow.Daylight
December has the shortest days of the year, with an average of 10h and 0min of daylight.On the first day of December, sunrise is at 6:35 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 4:49 pm PST.
Sunshine
February and December, with an average of 6.7h of sunshine, are months with the least sunshine in Ramona Bowl.UV index
November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 3 in December translates into this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ramona Bowl, CA
- Average high temperature in December: 58.6°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is December (58.6°F).
- Average low temperature in December: 41°F
The month with the highest average low temperature is August (63.1°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in December
Ramona Bowl, CA
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Ramona Bowl, CA
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in December
Ramona Bowl, CA
- Average humidity in December: 54%
The months with the highest relative humidity are February, March and May (56%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Ramona Bowl, CA
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in December
Ramona Bowl, CA
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is March (7.4 days).
The month with the least rainy days is June (1.6 days).
Average snowfall in December
Ramona Bowl, CA
- Average snowfall in December: 0.04"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Ramona Bowl, CA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Ramona Bowl, CA
- Average daylight in December: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in December: 6h and 42min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 42min).
Average sunshine days in December
Ramona Bowl, CA
- Average sunshine days in December: 24.2 days
The month with the most sunshine days is October (27.4 days).
The month with the least sunshine days is February (20.9 days).
Average UV index in December
Ramona Bowl, CA
- Average UV index in December: 3
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 3).
Average cloud cover in December
Ramona Bowl, CA
- Average cloud cover in December: 25
The months with the most cloud cover are March and December (Cloud cover 25).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in December
Ramona Bowl, 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).
