December weather forecastFlournoy, CA
December
Weather in December
December, the first month of the winter in Flournoy, is still a cool month, with an average temperature varying between 39.2°F (4°C) and 52.7°F (11.5°C).Temperature
In Flournoy, December records the lowest average temperatures, peaking at 52.7°F (11.5°C) and reaching a low of 39.2°F (4°C).Humidity
The average relative humidity in December is 68%.Rainfall
The month with the most rainfall is December, when the rain falls for 11.5 days and typically aggregates up to 2.83" (72mm) of precipitation.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:12 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:55 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.8h of 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 medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the maximum UV index of 3 suggests these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Flournoy, CA
- Average high temperature in December: 52.7°F
The warmest month (with the highest average high temperature) is July (95.5°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in December: 39.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in December
Flournoy, CA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.91"Hg).
Average wind speed in December
Flournoy, CA
- Average wind speed in December: 5.5mph
The windiest months (with the highest average wind speed) are March and October (6.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Flournoy, CA
- Average humidity in December: 68%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (33%).
Average rainfall in December
Flournoy, CA
- Average rainfall in December: 2.83"
The wettest month (with the highest rainfall) is December (2.83").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Flournoy, CA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is August (1.4 days).
Average daylight in December /
Average sunshine in December
Flournoy, CA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 48min
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 48min).
Average sunshine days in December
Flournoy, CA
- Average sunshine days in December: 18.9 days
The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in December
Flournoy, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Flournoy, CA
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Flournoy, 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).
