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 sea temperature 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
During February and December, Mendocino registers its lowest temperatures, averaging a high of 54.3°F (12.4°C).Humidity
In December, the average relative humidity in Mendocino, California, is 76%.Rainfall
December is the month with the most rainfall. Rain falls for 10.4 days and accumulates 1.77" (45mm) of precipitation.Snowfall
January, March through December are months without snowfall.Ocean temperature
In Mendocino, California, the average seawater temperature in December is 54.1°F (12.3°C).Note: Navigating the 54.1°F (12.3°C) at 55.4°F (13°C) is no joy, and temperatures less than 50°F (10°C) can threaten breathing and cause a chilling shock, gauging personal stamina.
Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in Mendocino, California.On the first day of December in Mendocino, California, sunrise is at 7:16 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:02 pm PST.
Sunshine
The month with the least sunshine is December, with an average of 5.5h of sunshine.UV index
The months with the lowest UV index in Mendocino are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 3 in December leads to these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. It's recommended to limit sun exposure when its radiation is at its peak during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Frequently asked questions
What time of the year is the coldest in Mendocino?
What is the usual temperature for Mendocino in December?
What is the average humidity in December in Mendocino?
What is the rainiest month in Mendocino?
How many days does it rain in December in Mendocino?
When it does not snow in Mendocino?
What is the water temperature in December in Mendocino?
What is the month with the shortest days in Mendocino?
What is the average length of the day in December in Mendocino?
What time are sunrise and sunset in December in Mendocino?
What is the month with the least sunshine in Mendocino?
How long on average sun shines in December in Mendocino?
What is the month with the lowest UV index in Mendocino?
What is the UV index reading in December in Mendocino?
Average temperature in December
Mendocino, CA
- Average high temperature in December: 54.3°F
The warmest month (with the highest average high temperature) is September (67.5°F).
The months with the lowest average high temperature are February and December (54.3°F).
- Average low temperature in December: 46.2°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).
Average pressure in December
Mendocino, CA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed in December
Mendocino, CA
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is June (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in December
Mendocino, CA
- Average humidity in December: 76%
The months with the highest relative humidity are March, May and August (80%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Mendocino, CA
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is December (1.77").
The driest months (with the least rainfall) are June, July and August (0.08").
Average rainfall days in December
Mendocino, CA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is March (11.4 days).
The months with the least rainy days are June and August (1.8 days).
Average snowfall in December
Mendocino, CA
- Average snowfall in December: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Mendocino, CA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in December
Mendocino, CA
- Average sea temperature in December: 54.2°F
The best month for swimming (with the highest average sea temperature) is October (55.6°F).
The coldest month (with the lowest average sea temperature) is April (52.1°F).
Average daylight in December /
Average sunshine in December
Mendocino, CA
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in December
Mendocino, CA
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is March (18.4 days).
Average UV index in December
Mendocino, CA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Mendocino, CA
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 10).
Average visibility in December
Mendocino, 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).
Mendocino, California, USA
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