Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Chico's December weather, marked by an average high temperature of 53.2°F (11.8°C) and an average low temperature of 39°F (3.9°C), is the coldest in the year.Humidity
In December, the average relative humidity in Chico is 67%.Rainfall
In Chico, during December, the rain falls for 11.5 days and regularly aggregates up to 3.9" (99mm) of precipitation. Throughout the year, there are 90.7 rainfall days, and 21.81" (554mm) of precipitation is accumulated.Snowfall
The only month with snowfall in Chico is December. The month with the most snowfall in Chico is December, when snow falls for 0.4 days and typically aggregates up to 0.12" (3mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Chico.On the first day of the month, sunrise is at 7:09 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:53 pm PST.
Sunshine
January and December, with an average of 5.9h of sunshine, are months with the least sunshine in Chico.UV index
The months with the lowest UV index in Chico, California, 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 health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, a regular UV index of 3 translates into these guidelines:
Undertake protective steps - Recommendations to avoid sunburn are issued. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Frequently asked questions
What part of the year is the coldest in Chico?
What are December temperatures in Chico?
What is the average humidity in December in Chico?
How many days does it rain in December in Chico?
When does it snow the most in Chico?
When does it start to snow in Chico?
What is the month with the shortest days in Chico?
What is the average length of the day in December in Chico?
When are sunrise and sunset in December in Chico?
What are the months with the least sunshine in Chico?
How many hours of sunshine does Chico have in December?
What are the months with the lowest UV index in Chico?
What is the UV index intensity in December in Chico?
Average temperature in December
Chico, CA
- Average high temperature in December: 53.2°F
The warmest month (with the highest average high temperature) is July (95.2°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in December: 39°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is December (39°F).
Average pressure in December
Chico, CA
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Chico, CA
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is March (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Chico, CA
- Average humidity in December: 67%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is July (32%).
Average rainfall in December
Chico, CA
- Average rainfall in December: 3.9"
The wettest month (with the highest rainfall) is February (3.94").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in December
Chico, CA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is August (1.9 days).
Average snowfall in December
Chico, CA
- Average snowfall in December: 0.12"
The month with the highest snowfall is December (0.12").
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
Chico, CA
- Average snowfall days in December: 0.4 days
The month with the highest number of snowfall days is December (0.4 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
Chico, CA
- Average daylight in December: 9h and 2min
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 24min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 5h and 54min).
Average sunshine days in December
Chico, CA
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is August (28.1 days).
The month with the least sunshine days is March (14.9 days).
Average UV index in December
Chico, 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
Chico, CA
- Average cloud cover in December: 35
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in December
Chico, 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).
Chico, California, USA
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