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 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
December, known for its average high temperature of 54.1°F (12.3°C) and an average low temperature of 40.8°F (4.9°C), is the coldest month.Humidity
The average relative humidity in December is 71%.Rainfall
In December, the rain falls for 8.9 days. Throughout December, 1.77" (45mm) of precipitation is accumulated. Throughout the year, there are 67.3 rainfall days, and 10.79" (274mm) of precipitation is accumulated.Snowfall
December is the only month when snow falls. December has the most snowfall days of the year in Rancho Cordova. Snow falls for 0.1 days.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:04 am and sunset at 4:44 pm. On the last day of December, sunrise is at 7:22 am and sunset at 4:54 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 February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 3 in December translates into these instructions:
Exercise prevention - Precautions against solar damage are endorsed. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
What is the snowiest month?
When does it start to snow?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Rancho Cordova, CA
- Average high temperature in December: 54.1°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in December: 40.8°F
The months with the highest average low temperature are July and August (60.1°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).
Average pressure in December
Rancho Cordova, CA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Rancho Cordova, CA
- Average wind speed in December: 5mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in December
Rancho Cordova, CA
- Average humidity in December: 71%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and September (43%).
Average rainfall in December
Rancho Cordova, CA
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in December
Rancho Cordova, CA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is March (12 days).
The months with the least rainy days are June and July (1.3 days).
Average snowfall days in December
Rancho Cordova, 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
Rancho Cordova, CA
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 5min
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
Rancho Cordova, CA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is March (18.1 days).
Average UV index in December
Rancho Cordova, 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 February, November and December (UV index 3).
Average cloud cover in December
Rancho Cordova, 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
Rancho Cordova, 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).
Rancho Cordova, California, USA
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