Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
October ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 84°F (28.9°C) to a still warm 74.5°F (23.6°C). A sharp divergence from daytime highs is noted during the month of October, with the average nighttime temperature settling at a cool 51.8°F (11°C).Humidity
In October, the average relative humidity is 56%.Rainfall
In Yountville, in October, during 4.7 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Yountville, during the entire year, the rain falls for 77.8 days and collects up to 16.02" (407mm) of precipitation.Daylight
In Yountville, the average length of the day in October is 11h and 11min.On the first day of the month, sunrise is at 7:05 am and sunset at 6:51 pm. On the last day of October, sunrise is at 7:35 am and sunset at 6:10 pm PDT.
Sunshine
The average sunshine in October in Yountville is 7h.UV index
In Yountville, the average daily maximum UV index in October is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In October, the maximum UV index of 4 suggests this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the average humidity in October?
How much does it rain in October?
How many hours of daylight does Yountville have in October?
When are sunrise and sunset in October?
How many hours of sunshine does Yountville have in October?
What is the UV index intensity in October?
Average temperature in October
Yountville, CA
- Average high temperature in October: 74.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in October: 51.8°F
The month with the highest average low temperature is August (55.4°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in October
Yountville, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in October
Yountville, CA
- Average wind speed in October: 4.6mph
The windiest month (with the highest average wind speed) is May (6mph).
The calmest month (with the lowest average wind speed) is November (4.3mph).
Average humidity in October
Yountville, CA
- Average humidity in October: 56%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (54%).
Average rainfall in October
Yountville, CA
- Average rainfall in October: 0.91"
The wettest month (with the highest rainfall) is February (3.43").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in October
Yountville, CA
- Average rainfall days in October: 4.7 days
The month with the highest number of rainy days is March (13.9 days).
The month with the least rainy days is August (0.9 days).
Average daylight in October /
Average sunshine in October
Yountville, CA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 7h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in October
Yountville, CA
- Average sunshine days in October: 25.5 days
The month with the most sunshine days is July (29.4 days).
The month with the least sunshine days is March (15.8 days).
Average UV index in October
Yountville, CA
- Average UV index in October: 4
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 October
Yountville, CA
- Average cloud cover in October: 18
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in October
Yountville, CA
- Average visibility in October: 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).
Yountville, California, USA
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