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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January in Yountville, California, is a refreshing winter month, with an average temperature ranging between min 41.2°F (5.1°C) and max 55.9°F (13.3°C). Yountville's shift into January sets the average high-temperature at a refreshing 55.9°F (13.3°C), a figure that deviates only slightly from December's 54.5°F (12.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also a moderate month in Yountville, California, with an average temperature ranging between max 59°F (15°C) and min 41.4°F (5.2°C). The transition from January to February sees an average high-temperature of a still moderate 59°F (15°C), indicating a minor variance from the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a comfortable month in Yountville, California, with an average temperature ranging between max 61.3°F (16.3°C) and min 42.3°F (5.7°C). A minimal variation is noted in Yountville's average high-temperature at the onset of March, reaching a comfortable 61.3°F (16.3°C) from February's 59°F (15°C). Weather in March »
Weather in April
April is a pleasant spring month in Yountville, California, with an average temperature varying between 68°F (20°C) and 44.4°F (6.9°C). April's arrival signals a subtle increase in average high-temperatures, moving from March's comfortable 61.3°F (16.3°C) to a pleasant 68°F (20°C). Weather in April »
Weather in May
May, the last month of the spring in Yountville, is a moderately hot month, with an average temperature fluctuating between 48.2°F (9°C) and 73.6°F (23.1°C). May's onset brings a minor rise in the average high-temperature, moving from an agreeable 68°F (20°C) in April to a warm 73.6°F (23.1°C). Weather in May »
Weather in June
June, the first month of the summer in Yountville, is still a warm month, with an average temperature fluctuating between 82.8°F (28.2°C) and 53.2°F (11.8°C). Yountville experiences a temperature shift with the start of June, with average high-temperatures moving from a warm 73.6°F (23.1°C) in May to a still moderately hot 82.8°F (28.2°C). Weather in June »
Weather in July
July is a hot summer month in Yountville, California, with an average temperature varying between 55°F (12.8°C) and 86.5°F (30.3°C). Yountville's temperature records reveal July as the warmest month, marked by average highs of 86.5°F (30.3°C) and lows of 55°F (12.8°C). July's mean heat index is evaluated at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Yountville, is another tropical month, with an average temperature varying between 55.4°F (13°C) and 86.2°F (30.1°C). Transitioning into August, Yountville experiences an average high-temperature of a still tropical 86.2°F (30.1°C), marking a minor shift from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Yountville, is still a warm month, with an average temperature varying between 55.2°F (12.9°C) and 84°F (28.9°C). With the transition into September, Yountville notes an average high-temperature of a moderately hot 84°F (28.9°C), closely resembling August. Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Yountville, California, with an average temperature ranging between min 51.8°F (11°C) and max 74.5°F (23.6°C). October brings a drop in Yountville's average high-temperature, falling from 84°F (28.9°C) in September to a still warm 74.5°F (23.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Yountville, is another comfortable month, with an average temperature fluctuating between 63.3°F (17.4°C) and 45.1°F (7.3°C). As November begins, there is a decrease in the average high-temperature, falling from a moderately hot 74.5°F (23.6°C) in October to a refreshing 63.3°F (17.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a fresh month in Yountville, California, with temperature in the range of an average high of 54.5°F (12.5°C) and an average low of 40.1°F (4.5°C). In Yountville, December is the month with the lowest recorded average temperatures, measuring a high of 54.5°F (12.5°C) and a low of 40.1°F (4.5°C). Weather in December »
[Resources]Frequently asked questions
How much does it rain in Yountville?
Throughout the year, in Yountville, there are 77.8 rainfall days, and 16.02" (407mm) of precipitation is accumulated.
When is the lowest UV index in Yountville?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 3.
What is the wettest month in Yountville?
The month with the most rainfall is February, when the rain falls for 9.4 days and typically aggregates up to 3.43" (87mm) of precipitation.
What is the most humid month in Yountville?
March is the most humid month, with an average relative humidity of 76%.
When is Daylight Saving Time (DST) in Yountville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Yountville, California, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When are the longest days in Yountville?
With an average of 14h and 48min of daylight, June has the longest days of the year in Yountville, California.
When is the highest UV index in Yountville?
The months with the highest UV index in Yountville are June through August, with an average maximum UV index of 6.
What are the warmest months in Yountville?
The warmest temperatures occur during July, when averages reach a peak of 86.5°F (30.3°C) and a low of 55°F (12.8°C).
What is the driest month in Yountville?
July and August are months with the least rain when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.
What month has the most sunshine in Yountville?
The month with the most sunshine is July, with an average of 12h of sunshine.
What is the least humid month in Yountville?
September is the least humid month in Yountville, California, with an average relative humidity of 54%.
What time of the year is the coldest in Yountville?
Yountville records the coldest temperatures in December, averaging a high of 54.5°F (12.5°C) and a low of 40.1°F (4.5°C).
What is the month with the shortest days in Yountville?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
What is the month with the least sunshine in Yountville?
With an average of 5.6h of sunshine, December has the least sunshine of the year.
Average temperature
Yountville, CA
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).
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
Yountville, CA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.92"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"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
Yountville, CA
- Average wind speed in January:
4.5mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.4mph - Average wind speed in April:
5.8mph - Average wind speed in May:
6mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.4mph - Average wind speed in August:
5mph - Average wind speed in September:
4.7mph - Average wind speed in October:
4.6mph - Average wind speed in November:
4.3mph - Average wind speed in December:
4.7mph
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
Yountville, CA
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (54%).
Average rainfall
Yountville, CA
- Average rainfall in January:
3.03" - Average rainfall in February:
3.43" - Average rainfall in March:
2.52" - Average rainfall in April:
0.79" - Average rainfall in May:
0.83" - Average rainfall in June:
0.16"
- Average rainfall in July:
0.04" - Average rainfall in August:
0.04" - Average rainfall in September:
0.08" - Average rainfall in October:
0.91" - Average rainfall in November:
1.46" - Average rainfall in December:
2.76"
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
Yountville, CA
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
9.4 days - Average rainfall days in March:
13.9 days - Average rainfall days in April:
8.3 days - Average rainfall days in May:
5.6 days - Average rainfall days in June:
2.4 days
- Average rainfall days in July:
1.2 days - Average rainfall days in August:
0.9 days - Average rainfall days in September:
2.1 days - Average rainfall days in October:
4.7 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
11.4 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 / Average sunshine
Yountville, CA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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 January:
5h and 4min - Average sunshine in February:
6h and 0min - Average sunshine in March:
7h and 2min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 4min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
11h and 5min - Average sunshine in September:
11h and 1min - Average sunshine in October:
7h and 0min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 4min
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
Yountville, CA
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
20.8 days - Average sunshine days in May:
24.1 days - Average sunshine days in June:
26.9 days
- Average sunshine days in July:
29.4 days - Average sunshine days in August:
29.3 days - Average sunshine days in September:
26.9 days - Average sunshine days in October:
25.5 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
18.7 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
Yountville, CA
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
Yountville, CA
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
Yountville, CA
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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