Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The arrival of January sees an average high-temperature of a mild 57°F (13.9°C), hardly diverging from December's 55°F (12.8°C). During the month of January, the temperature in Sunol, California, falls to an average of 41.5°F (5.3°C).Humidity
In January, the average relative humidity is 73%.Rainfall
In January, in Sunol, the rain falls for 9.3 days. Throughout January, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 70.2 rainfall days, and 10.98" (279mm) of precipitation is accumulated.Daylight
In January, the average length of the day in Sunol is 9h and 55min.On the first day of January, sunrise is at 7:22 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:11 am and sunset at 5:29 pm PST.
Sunshine
In Sunol, the average sunshine in January is 6.3h.UV index
The months with the lowest UV index in Sunol are January, February, November and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 3 in January, converts into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Sunol?
What is the average humidity in January in Sunol?
How many days does it rain in January in Sunol?
What is the average length of the day in January in Sunol?
When is the sunrise / sunset in January in Sunol?
How long on average sun shines in January in Sunol?
What is the month with the lowest UV index in Sunol?
What is the UV index intensity in January in Sunol?
Average temperature in January
Sunol, CA
- Average high temperature in January: 57°F
The warmest month (with the highest average high temperature) is July (85.3°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 August (56.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in January
Sunol, 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 (29.92"Hg).
Average wind speed in January
Sunol, CA
- Average wind speed in January: 4.3mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in January
Sunol, CA
- Average humidity in January: 73%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (56%).
Average rainfall in January
Sunol, CA
- Average rainfall in January: 1.93"
The wettest month (with the highest rainfall) is February (2.05").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in January
Sunol, CA
- Average rainfall days in January: 9.3 days
The month with the highest number of rainy days is March (12.4 days).
The month with the least rainy days is August (0.9 days).
Average daylight in January /
Average sunshine in January
Sunol, CA
- Average daylight in January: 9h and 5min
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 36min).
- Average sunshine in January: 6h and 2min
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
Sunol, CA
- Average sunshine days in January: 20.8 days
The month with the most sunshine days is August (29 days).
The month with the least sunshine days is March (17.6 days).
Average UV index in January
Sunol, 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
Sunol, CA
- Average cloud cover in January: 31
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in January
Sunol, 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).
Sunol, California, USA
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