January weather forecastAntioch, CA

January
Weather in January
January is a moderate winter month in Antioch, California, with an average temperature fluctuating between 41.5°F (5.3°C) and 56.1°F (13.4°C).Temperature
The advent of January reveals an average high-temperature of a moderate 56.1°F (13.4°C), showing minimal difference from the prior month. Throughout January, the average low-temperature in Antioch records at a wintry 41.5°F (5.3°C).Humidity
The most humid month in Antioch is January, with an average relative humidity of 74%.Rainfall
In Antioch, during January, the rain falls for 8.6 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Antioch, during the entire year, the rain falls for 62 days and collects up to 10.16" (258mm) of precipitation.Snowfall
In Antioch, California, snow does not fall in January through November.Daylight
In Antioch, the average length of the day in January is 9h and 53min.On the first day of the month, sunrise is at 7:23 am and sunset at 4:58 pm. On the last day of January, in Antioch, sunrise is at 7:12 am and sunset at 5:28 pm PST.
Sunshine
The average sunshine in January in Antioch is 6h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during January leads to these advisories:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Antioch, CA
- Average high temperature in January: 56.1°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in January: 41.5°F
The month with the highest average low temperature is September (57.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in January
Antioch, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in January
Antioch, CA
- Average wind speed in January: 4.5mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity in January
Antioch, CA
- Average humidity in January: 74%
The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is September (52%).
Average rainfall in January
Antioch, CA
- Average rainfall in January: 1.89"
The wettest month (with the highest rainfall) is February (2.09").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Antioch, CA
- Average rainfall days in January: 8.6 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in January
Antioch, CA
- Average snowfall days in January: 0 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 January /
Average sunshine in January
Antioch, CA
- Average daylight in January: 9h and 54min
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 36min).
- Average sunshine in January: 6h and 0min
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 January
Antioch, CA
- Average sunshine days in January: 21.8 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is March (17.7 days).
Average UV index in January
Antioch, CA
- Average UV index in January: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Antioch, CA
- Average cloud cover in January: 34
The months with the most cloud cover are March and December (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in January
Antioch, 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).





