January weather forecastRolling Hills Estates, CA
January
Weather in January
January, the same as December, is another enjoyable winter month in Rolling Hills Estates, California, with an average temperature fluctuating between 63.9°F (17.7°C) and 53.8°F (12.1°C).Temperature
The beginning of January records an average high-temperature of a still enjoyable 63.9°F (17.7°C), almost echoing the conditions of the previous month. In Rolling Hills Estates, the average nighttime temperature during January is a fresh 53.8°F (12.1°C).Humidity
In Rolling Hills Estates, the average relative humidity in January is 60%.Rainfall
The month with the most rainfall in Rolling Hills Estates is January, when the rain falls for 4.7 days and typically aggregates up to 1.46" (37mm) of precipitation.Daylight
In Rolling Hills Estates, California, the average length of the day in January is 10h and 13min.On the first day of January in Rolling Hills Estates, sunrise is at 6:58 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 5:22 pm PST.
Sunshine
January and December, with an average of 6.7h of sunshine, are months with the least sunshine in Rolling Hills Estates.UV index
January through March, November and December, with an average maximum UV index of 4, are months with the lowest UV index in Rolling Hills Estates. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 4 during January leads to these instructions:
Take precautions - Protection against skin and eye damage is obliged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Rolling Hills Estates, CA
- Average high temperature in January: 63.9°F
The warmest months (with the highest average high temperature) are August and September (76.1°F).
The month with the lowest average high temperature is December (62.4°F).
- Average low temperature in January: 53.8°F
The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (52.5°F).
Average pressure in January
Rolling Hills Estates, CA
- Average pressure in January: 30.1"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in January
Rolling Hills Estates, CA
- Average wind speed in January: 5.8mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is September (5.3mph).
Average humidity in January
Rolling Hills Estates, CA
- Average humidity in January: 60%
The month with the highest relative humidity is June (75%).
The month with the lowest relative humidity is November (58%).
Average rainfall in January
Rolling Hills Estates, CA
- Average rainfall in January: 1.46"
The wettest month (with the highest rainfall) is January (1.46").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in January
Rolling Hills Estates, CA
- Average rainfall days in January: 4.7 days
The month with the highest number of rainy days is March (6.6 days).
The month with the least rainy days is August (3.3 days).
Average daylight in January /
Average sunshine in January
Rolling Hills Estates, CA
- Average daylight in January: 10h and 12min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January: 6h and 42min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in January
Rolling Hills Estates, CA
- Average sunshine days in January: 24.4 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is June (17.8 days).
Average UV index in January
Rolling Hills Estates, CA
- Average UV index in January: 4
The months with the highest UV index are July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in January
Rolling Hills Estates, CA
- Average cloud cover in January: 21
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in January
Rolling Hills Estates, 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).
