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
Ricardo notes the coldest temperatures in December, with a high average of 54.3°F (12.4°C) and a low of 38.3°F (3.5°C).Humidity
January and December, with an average relative humidity of 49%, are the most humid months.Rainfall
The month with the most rainfall is December, when the rain falls for 4.5 days and typically aggregates up to 0.87" (22mm) of precipitation.Snowfall
Months with snowfall are January, February, November and December. In December, in Ricardo, it is snowing for 0.3 days. Throughout December, 0.91" (23mm) of snow is accumulated. In Ricardo, during the entire year, snow falls for 1.4 days and aggregates up to 2.2" (56mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 6:43 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 4:49 pm PST.
Sunshine
In Ricardo, California, the average sunshine in December is 7.1h.UV index
January, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 3 translates into these guidelines:
Take precautions - Protection against sun damage is advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
What is the temperature in December?
What is the most humid month?
What is the average humidity in December?
What is the wettest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Ricardo have in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Ricardo?
Average temperature in December
Ricardo, CA
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is July (95.7°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is August (70.3°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).
Average pressure in December
Ricardo, CA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Ricardo, CA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is May (11.5mph).
The calmest month (with the lowest average wind speed) is January (6.4mph).
Average humidity in December
Ricardo, CA
- Average humidity in December: 49%
The months with the highest relative humidity are January and December (49%).
The month with the lowest relative humidity is August (22%).
Average rainfall in December
Ricardo, CA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0").
Average rainfall days in December
Ricardo, CA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is March (5.3 days).
The month with the least rainy days is June (0.4 days).
Average snowfall in December
Ricardo, CA
- Average snowfall in December: 0.91"
The month with the highest snowfall is November (1.06").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in December
Ricardo, CA
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Ricardo, CA
- Average daylight in December: 9h and 5min
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: 7h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in December
Ricardo, CA
- Average sunshine days in December: 25.8 days
The months with the most sunshine days are May, June and August (29.3 days).
The month with the least sunshine days is February (22.5 days).
Average UV index in December
Ricardo, CA
- Average UV index in December: 3
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in December
Ricardo, CA
- Average cloud cover in December: 18
The months with the most cloud cover are January and March (Cloud cover 19).
The months with the least cloud cover are August and September (Cloud cover 4).
Average visibility in December
Ricardo, 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).
Ricardo, California, USA
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