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United StatesThe weather in January in Yountville
It's cool to moderate in January in Yountville with an average temperature of 16°C. Temperatures this month range from a low of 14°C to a high of 18°C. At night, you can expect temperatures between 1°C and 7°C.
Looking for sun and warm weather? January isn’t a good month to be in Yountville. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in January for Yountville, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 27°C in 2021, Yountville reached the highest temperature in January over the past 10 years. The lowest daytime temperature in this month was 8°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of -3°C to a highest value of 14°C.
Rainfall amount
In January, there is an average of 96 mm of precipitation, spread over 11 days. The wind speed is around 3 Bft, mostly coming from the South.
Daily weather in January for Yountville
Click on any day in January to get detailed info about the usual weather on that day in Yountville. Check out the historical temperatures and precipitation over the past 10 years on this day.
January weather comparison
| Yountville | New York | |
|---|---|---|
| Average temperature | 16°C | 5°C |
| Max. temperature | 18°C | 11°C |
| Min. temperature | 1°C | -5°C |
| Total precipitation | 96 mm | 97 mm |
| Rainy days | 11 days | 12 days |
Start of January
The month of January starts in Yountville with cool temps, averaging around 15°C during the day and nights around 6°C.
Mid January
By mid-January, daytime temps rise to around 17°C, with nights around 5°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of January
By the end of January, the average daytime temperature in Yountville is around 17°C, while nighttime temps are about 5°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
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Temperature charts
These charts show the average temperatures in January in Yountville, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in January in Yountville
Temperature in January in Yountville over the years
Precipitation charts
These charts show the average amount of precipitation in January in Yountville, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in January in Yountville
Total precipitation in January in Yountville over the years
Daily UV index in January in Yountville
This chart shows the average daily UV index in January in Yountville, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in January in Yountville
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Average weather in Yountville by month
Click on a month below to see detailed weather info for Yountville. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.