January weather forecastMonte Sereno, CA
January
Weather in January
January, like December, is a moderate winter month in Monte Sereno, California, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 43.9°F (6.6°C).Temperature
The commencement of January brings an average high-temperature of a still moderate 58.5°F (14.7°C), marking an inconsequential divergence from December. Monte Sereno reports an average nighttime low-temperature of 43.9°F (6.6°C) in January.Humidity
In January, the average relative humidity is 72%.Rainfall
In Monte Sereno, in January, it is raining for 9.1 days, with typically 2.09" (53mm) of accumulated precipitation. In Monte Sereno, California, during the entire year, the rain falls for 68.6 days and collects up to 11.57" (294mm) of precipitation.Daylight
In January, the average length of the day is 9h and 57min.On the first day of the month, sunrise is at 7:21 am and sunset at 5:01 pm. On the last day of January, in Monte Sereno, sunrise is at 7:11 am and sunset at 5:31 pm PST.
Sunshine
In January, the average sunshine in Monte Sereno, California, is 6.4h.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 medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 3 during January leads to these instructions:
Act with care - The need to guard against sun damage is communicated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Monte Sereno, CA
- Average high temperature in January: 58.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (56.7°F).
- Average low temperature in January: 43.9°F
The month with the highest average low temperature is August (55.9°F).
The coldest month (with the lowest average low temperature) is February (43.5°F).
Average pressure in January
Monte Sereno, CA
- Average pressure in January: 30.13"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June and September (29.92"Hg).
Average wind speed in January
Monte Sereno, CA
- Average wind speed in January: 4.7mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are August, September, October and November (4.5mph).
Average humidity in January
Monte Sereno, CA
- Average humidity in January: 72%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (62%).
Average rainfall in January
Monte Sereno, CA
- Average rainfall in January: 2.09"
The wettest month (with the highest rainfall) is February (2.2").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Monte Sereno, CA
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (0.9 days).
Average daylight in January /
Average sunshine in January
Monte Sereno, CA
- Average daylight in January: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 6h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in January
Monte Sereno, CA
- Average sunshine days in January: 20.9 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (17.3 days).
Average UV index in January
Monte Sereno, 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
Monte Sereno, CA
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in January
Monte Sereno, 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).





