January weather forecastWinters, CA
January
Weather in January
January in Winters, California, is a refreshing winter month, with an average temperature ranging between min 40.8°F (4.9°C) and max 55.6°F (13.1°C).Temperature
With the transition into January, Winters notes an average high-temperature of a moderate 55.6°F (13.1°C), closely resembling December. January brings with it a nighttime average temperature of 40.8°F (4.9°C).Humidity
In Winters, the average relative humidity in January is 73%.Rainfall
In January, the rain falls for 9.4 days. Throughout January, 2.52" (64mm) of precipitation is accumulated. In Winters, during the entire year, the rain falls for 71.7 days and collects up to 13.43" (341mm) of precipitation.Snowfall
The only month with snowfall is January. The month with the most snowfall is January, when 0.12" (3mm) of snow is typically aggregated.Daylight
In Winters, the average length of the day in January is 9h and 50min.On the first day of January, sunrise is at 7:25 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:28 pm PST.
Sunshine
The average sunshine in January 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. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 3 in January translates into these instructions:
Undertake protective steps - Preventing sun damage is advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Winters, CA
- Average high temperature in January: 55.6°F
The warmest month (with the highest average high temperature) is July (93°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in January: 40.8°F
The month with the highest average low temperature is August (58.3°F).
The coldest month (with the lowest average low temperature) is January (40.8°F).
Average pressure in January
Winters, CA
- Average pressure in January: 30.14"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in January
Winters, CA
- Average wind speed in January: 5mph
The windiest month (with the highest average wind speed) is May (6.6mph).
The calmest months (with the lowest average wind speed) are January and November (5mph).
Average humidity in January
Winters, CA
- Average humidity in January: 73%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (46%).
Average rainfall in January
Winters, CA
- Average rainfall in January: 2.52"
The wettest month (with the highest rainfall) is February (2.68").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Winters, CA
- Average rainfall days in January: 9.4 days
The month with the highest number of rainy days is March (12.7 days).
The month with the least rainy days is July (0.8 days).
Average snowfall in January
Winters, CA
- Average snowfall in January: 0.1"
The month with the highest snowfall is January (0.1").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in January
Winters, 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 daylight in January /
Average sunshine in January
Winters, CA
- Average daylight in January: 9h and 48min
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 January: 5h and 36min
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 30min).
Average sunshine days in January
Winters, CA
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is July (30.1 days).
The month with the least sunshine days is March (16.9 days).
Average UV index in January
Winters, CA
- Average UV index in January: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in January
Winters, CA
- Average cloud cover in January: 38
The months with the most cloud cover are March and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in January
Winters, 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).





