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 snowfall 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 shift into January records an average high-temperature of a moderate 56.5°F (13.6°C), subtly varied from December's 54.1°F (12.3°C). In Vina, January's nights observe an average temperature dip to a wintry 41.5°F (5.3°C).Humidity
The average relative humidity in January is 67%.Rainfall
In January, the rain falls for 10.3 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. In Vina, during the entire year, the rain falls for 82.8 days and collects up to 16.34" (415mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
The average length of the day in January in Vina is 9h and 43min.On the first day of the month, sunrise is at 7:29 am and sunset at 4:53 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:25 pm PST.
Sunshine
January and December, with an average of 5.8h of sunshine, are months with the least sunshine.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 reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In January, a regular UV index of 3 translates into these guidelines:
Ensure safety - Sun damage prevention is strongly urged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January?
How many days does it rain in January?
When it does not snow?
Does it snow in January?
How many hours of daylight does Vina have in January?
When is the sunrise / sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Vina have in January?
What is the month with the lowest UV index?
How high is the UV index in January in Vina?
Average temperature in January
Vina, CA
- Average high temperature in January: 56.5°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in January: 41.5°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (40.3°F).
Average pressure in January
Vina, CA
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in January
Vina, CA
- Average wind speed in January: 6mph
The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in January
Vina, CA
- Average humidity in January: 67%
The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are July and August (29%).
Average rainfall in January
Vina, CA
- Average rainfall in January: 2.48"
The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in January
Vina, CA
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (1.1 days).
Average snowfall days in January
Vina, CA
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is February (0.2 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
Vina, CA
- Average daylight in January: 9h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January: 5h and 5min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).
Average sunshine days in January
Vina, CA
- Average sunshine days in January: 19.7 days
The months with the most sunshine days are July and August (29.3 days).
The month with the least sunshine days is March (14.9 days).
Average UV index in January
Vina, 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
Vina, CA
- Average cloud cover in January: 35
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in January
Vina, 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).
Vina, California, USA
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