January weather forecastMendocino, CA
January
Weather in January
January, the same as December, is another fresh winter month in Mendocino, California, with an average temperature fluctuating between 54.9°F (12.7°C) and 46.9°F (8.3°C).Temperature
Mendocino's average high-temperature in January is a still fresh 54.9°F (12.7°C), marking an insignificant difference from the 54.3°F (12.4°C) of December. An average nighttime temperature of 46.9°F (8.3°C) marks January.Humidity
In Mendocino, the average relative humidity in January is 77%.Rainfall
In Mendocino, in January, during 9.8 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Mendocino, during the entire year, the rain falls for 68.4 days and collects up to 9.53" (242mm) of precipitation.Snowfall
January, March through December are months without snowfall.Ocean temperature
In Mendocino, the average seawater temperature in January is 52.7°F (11.5°C).Note: It is risky to swim in 52.7°F (11.5°C). Temperatures beneath 50°F (10°C) induce rapid cold shock and hyperventilation.
Daylight
In January, the average length of the day is 9h and 47min.On the first day of January, sunrise is at 7:34 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 5:34 pm PST.
Sunshine
In January, the average sunshine is 5.6h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Mendocino. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 3 during January morphs into the following directions:
Make use of precautions - Suggestions to resist sunburn are communicated. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Mendocino, CA
- Average high temperature in January: 54.9°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 January: 46.9°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 January
Mendocino, CA
- Average pressure in January: 30.13"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 January
Mendocino, CA
- Average wind speed in January: 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 January
Mendocino, CA
- Average humidity in January: 77%
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 January
Mendocino, CA
- Average rainfall in January: 1.65"
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 January
Mendocino, CA
- Average rainfall days in January: 9.8 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 January
Mendocino, CA
- Average snowfall in January: 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 January
Mendocino, CA
- Average snowfall days in January: 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 January
Mendocino, CA
- Average sea temperature in January: 52.6°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 January /
Average sunshine in January
Mendocino, CA
- Average daylight in January: 9h and 48min
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 January: 5h and 36min
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 January
Mendocino, CA
- Average sunshine days in January: 20 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 January
Mendocino, CA
- Average UV index in January: 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 January
Mendocino, CA
- Average cloud cover in January: 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 January
Mendocino, CA
- Average visibility in January: 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).
