December weather forecastBallou, CA
December
Weather in December
December, the first month of the winter in Ballou, is still a comfortable month, with an average temperature fluctuating between 63°F (17.2°C) and 46.2°F (7.9°C).Temperature
The lowest temperatures are recorded in December, with averages reaching a high of 63°F (17.2°C) and a low of 46.2°F (7.9°C).Humidity
In Ballou, California, the average relative humidity in December is 51%.Rainfall
The wettest months are February and December, with an average 1.42" (36mm) of rainfall.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of December in Ballou, sunrise is at 6:38 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 4:51 pm PST.
Sunshine
February and December, with an average of 6.9h of sunshine, are months with the least sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index in Ballou, California. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in December leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ballou, CA
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in December: 46.2°F
The month with the highest average low temperature is August (66.4°F).
The coldest month (with the lowest average low temperature) is February (45.9°F).
Average pressure in December
Ballou, CA
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Ballou, CA
- Average wind speed in December: 5.2mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in December
Ballou, CA
- Average humidity in December: 51%
The months with the highest relative humidity are March and May (54%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Ballou, CA
- Average rainfall in December: 1.42"
The wettest months (with the highest rainfall) are February and December (1.42").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in December
Ballou, CA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is March (7.3 days).
The month with the least rainy days is June (1.1 days).
Average daylight in December /
Average sunshine in December
Ballou, CA
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 6h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are February and December (Average sunshine: 6h and 54min).
Average sunshine days in December
Ballou, CA
- Average sunshine days in December: 23.9 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is February (21.5 days).
Average UV index in December
Ballou, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Ballou, CA
- Average cloud cover in December: 21
The months with the most cloud cover are February, March and December (Cloud cover 21).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in December
Ballou, 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).
