January weather forecastCollege City, CA
January
Weather in January
January in College City, California, is a refreshing winter month, with an average temperature varying between 56.1°F (13.4°C) and 42.1°F (5.6°C).Temperature
With the start of January, College City measures an average high-temperature of a mild 56.1°F (13.4°C), not significantly differing from December's 54.3°F (12.4°C). The temperature in College City lowers to an average of 42.1°F (5.6°C) during January nights.Humidity
In College City, California, the average relative humidity in January is 69%.Rainfall
In January, the rain falls for 9 days. Throughout January, 2.13" (54mm) of precipitation is accumulated. Throughout the year, there are 70.9 rainfall days, and 12.13" (308mm) of precipitation is accumulated.Snowfall
January, March through December are months without snowfall in College City.Daylight
In College City, the average length of the day in January is 9h and 48min.On the first day of the month, sunrise is at 7:26 am and sunset at 4:56 pm. On the last day of January, in College City, sunrise is at 7:15 am and sunset at 5:27 pm PST.
Sunshine
The average sunshine in January in College City is 5.8h.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 health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 3 in January translates into the following instructions:
Undertake protective steps - Preventing sun damage is advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
College City, CA
- Average high temperature in January: 56.1°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in January: 42.1°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is December (41.7°F).
Average pressure in January
College City, CA
- Average pressure in January: 30.15"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 January
College City, CA
- Average wind speed in January: 5.5mph
The windiest months (with the highest average wind speed) are February and March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in January
College City, CA
- Average humidity in January: 69%
The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is September (38%).
Average rainfall in January
College City, CA
- Average rainfall in January: 2.13"
The wettest month (with the highest rainfall) is February (2.44").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
College City, CA
- Average rainfall days in January: 9 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is July (0.8 days).
Average snowfall days in January
College City, 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
College City, 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 48min
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 42min).
Average sunshine days in January
College City, CA
- Average sunshine days in January: 21.3 days
The months with the most sunshine days are July and August (29.6 days).
The month with the least sunshine days is March (17.2 days).
Average UV index in January
College City, 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
College City, CA
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
College City, 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).





