July Weather in Yountville, United States

Last updated: February 24, 2025

In Yountville, United States, July offers a delightful climate characterized by warm temperatures and low humidity. The maximum temperature soars to an impressive 41°C (106°F), while the average hovers around a pleasant 24°C (76°F). Nighttime brings a refreshing cooldown, with a minimum temperature of 12°C (54°F). Notably, the month experiences an exceptionally dry spell, with just 1 mm of precipitation over 0 rainy days, allowing residents and visitors to fully enjoy the sun-soaked days. With a humidity level of 44%, July in Yountville provides an ideal setting for outdoor activities and exploration.

July Temperature in Yountville

In July, Yountville experiences its warmest temperatures of the year, with minimums around 12°C (54°F) and averages climbing to a pleasant 24°C (76°F). The heat peaks with maximums reaching an impressive 41°C (106°F), marking a stark contrast to the chill of winter months. This trend of rising temperatures is mirrored in the preceding months, culminating in a warm embrace that invites outdoor activities. As the summer sun casts its golden glow, Yountville transforms into a vibrant hub, perfect for enjoying vineyard tours or alfresco dining in the delightful warmth of the season.

July Weather in Yountville: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Yountville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505254606673757572655549
Data source: Temperature data for Yountville generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Yountville

In July, Yountville experiences a notable shift in precipitation patterns, characterized by a stark decline in rainfall. With just 1 mm (0.0 in) recorded over the month, July stands out as one of the driest periods, further complemented by zero precipitation days. This dramatic reduction follows a trend from previous months, where rainfall steadily decreased from 127 mm (5.0 in) in January to a mere 2 mm (0.1 in) in June. The arid conditions set in during July typically pave the way for warm summer days, creating a striking contrast to the wet start of the year. Such patterns highlight the region's seasonal variability, emphasizing the dry heat that defines the heart of summer in Yountville.

July Precipitation Trends in Yountville

The chart displays monthly precipitation patterns in Yountville, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec1271208432202101314387
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

July Humidity in Yountville

In Yountville, United States, July marks a significant turn in humidity, dropping to a brisk 44%, a stark contrast to the damp conditions felt in the earlier months of the year, where figures hovered above 80%. This reduction in humidity not only enhances the summer experience, making outdoor activities more enjoyable, but also sets the stage for the drier months ahead, with August following closely at 36%. As the annual cycle progresses, the trend reveals a distinct shift from the heavy moisture of winter and spring to the refreshing dryness of late summer and early fall, offering residents and visitors alike a brief respite before the return of humidity in the later months.

July Average Humidity in Yountville

This chart illustrates the average monthly humidity levels in Yountville, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%83%81%74%64%44%37%44%65%84%83%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Yountville

In July, Yountville experiences its peak UV Index of 11, categorizing the exposure as extreme and shortening burn time to just 10 minutes. This month follows a sharp upward trend from earlier in the year, where values gradually increased from a moderate 3 in January to an extreme level in June. July maintains this intense UV radiation, which began in June, highlighting the importance of taking sun safety precautions during this time. As the summer sun blazes, visitors and residents alike should remain vigilant about skin protection, making it crucial to stay informed. For a comprehensive understanding, visit the detailed Yountville UV Index.

Maximum UV Index Levels in Yountville for July

The chart shows the monthly maximum UV Index (UVI) for Yountville in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109643
Data source: Yountville July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

July Sunshine in Yountville

In July, Yountville basks in the glory of 394 hours of sunshine, marking the pinnacle of daylight this year. This golden month represents a peak that began building momentum in the spring, with sunshine hours progressively increasing from 257 in March to a remarkable 384 in June. The warm glow of July not only signifies the height of summer but also hints at the delightful, sun-drenched days that characterize the region, as it transitions back to slightly less sunny August. It's a season where the warmth of the sun can be felt in every corner, enhancing the vibrant landscapes and inviting leisurely outdoor experiences. The overall trend reflects a consistent climb in sunshine hours as winter's gray gives way to the brilliant summer light.

Monthly Sunshine Duration in Yountville: July Highlighted

The July sunshine duration represents the total number of hours Yountville experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec141h210h257h296h357h384h394h356h314h280h220h185h
Data source: Yountville July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yountville During July

In Yountville, the likelihood of sunny weather in July is quite promising, with a robust 84% chance of sunshine. This aligns with the broader trend observed from spring into summer, as the likelihood steadily increases from a modest 37% in January to a peak of 88% in June. Following the sunny July, residents can still expect excellent weather, as August sees an even higher chance of 89%. September, too, maintains a commendable 82% likelihood of sun. Overall, July stands as a highlight in Yountville's summer, balancing warmth and brightness, making it an ideal time for outdoor activities and enjoying the local scenery.

Percentage of Sunny Days in July in Yountville

The chart illustrates the percentage of sunny days in Yountville throughout the year, with July highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Yountville experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%59%63%72%85%88%84%89%82%53%50%35%
Data source: Yountville July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yountville in July

In July, Yountville basks in 14 hours of daylight, maintaining the peak duration first reached in June. This bright summer month continues the trend of gradually increasing daylight that began in January, when the sun graced the skies for only 9 hours. As spring transitioned into summer, daylight hours steadily climbed, reaching a maximum in both June and July. However, a gradual decrease begins in August as daylight hours wane to 13 before descending further into the fall months. This rhythmic cycle of daylight not only invigorates the vibrant summer atmosphere but also signals the approach of shorter days as the year unfolds.

Average Daylight Hours in Yountville for July

The chart illustrates the variation in daylight duration in Yountville throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 49m10h 46m11h 59m13h 13m14h 16m14h 47m14h 30m13h 34m12h 22m11h 8m10h 3m9h 31m
Data source: Yountville daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Yountville

In July, Yountville experiences a gentle breeze with an average wind speed of 2.1 m/s (5 mph), maintaining a comfortable atmosphere reminiscent of the preceding months. This slight dip from June's 2.4 m/s reflects a typical summer trend, where winds tend to ease as the warm days progress. Throughout the year, wind speeds in Yountville peak slightly in May before generally tapering off into the latter summer months. As August approaches, the average wind speed is expected to decrease further to 1.9 m/s (4 mph), hinting at the calm that often accompanies the peak of summer. This subtle shift in wind patterns enhances the tranquil charm of Yountville, making it an ideal destination for leisurely summer afternoons.

Average July Wind Speed in Yountville

The chart displays monthly wind speed patterns in Yountville, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.32.32.02.62.42.1 m/s1.91.92.11.61.8
Data source: Yountville July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Yountville Compares to Other Months

The weather in Yountville changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Yountville and find detailed weather information for every month.

The weather in July and January presents a striking contrast. In July, temperatures range from a mild 12°C (54°F) at night to a scorching maximum of 41°C (106°F), with minimal precipitation of just 1 mm and humidity at a comfortable 44%. In stark contrast, January experiences much cooler temperatures, with a minimum of -1°C (30°F) and an average of 10°C (50°F), peaking at 26°C (78°F). This winter month sees significant rainfall, accumulating 127 mm over about 8 days, and high humidity levels at 84%. For a detailed look at January weather, check out Yountville weather in January.

July and February portray starkly contrasting weather conditions. July boasts an impressive temperature range, with a minimum of 12°C (54°F) and a soaring maximum of 41°C (106°F), averaging around 24°C (76°F), while enjoying almost no precipitation and a comfortable humidity level of 44%. In stark contrast, February experiences cooler temperatures, ranging from a chilly minimum of -3°C (28°F) to a maximum of 27°C (81°F), with an average of just 11°C (53°F). This month is also marked by significant rainfall, recording 120 mm (4.7 in) over about 7 days, coupled with a high humidity level of 84%. For more specifics on the winter weather, you can view Yountville weather in February.

When comparing the weather in July and March, it’s clear that there is a significant contrast between the two months. July boasts much higher temperatures, with a minimum of 12°C (54°F) and an average of 24°C (76°F), peaking at a scorching 41°C (106°F). In contrast, March has a much cooler climate, with temperatures ranging from a minimum of 0°C (32°F) to an average of 12°C (54°F) and a maximum of 30°C (86°F). Additionally, March sees substantial rainfall with 84 mm (3.3 in) of precipitation over 10 days, while July is notably dry, receiving just 1 mm of rain across the entire month. The humidity levels further highlight the differences, with March having a high humidity of 83% compared to July's more comfortable 44%. For a detailed overview of March weather, check out Yountville weather in March.

The weather in July contrasts significantly with that of April. In July, temperatures soar, averaging around 24°C (76°F) and reaching a scorching maximum of 41°C (106°F), while experiencing virtually no rainfall. In stark contrast, April enjoys milder temperatures, with an average of 16°C (60°F) and highs of 33°C (92°F), but it comes with increased humidity at 81% and substantial precipitation of 32 mm (1.3 in) over approximately five rainy days. For more details on April weather specifics, you can check Yountville weather in April.

In comparing the weather of July and May, July stands out for its significantly higher average temperatures, with nighttime lows of 12°C (54°F) and daytime highs reaching up to 41°C (106°F). In contrast, May experiences cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 38°C (101°F). While July boasts virtually no precipitation and low humidity at 44%, May tends to be wetter, receiving about 20 mm (0.8 in) of rain over 2 days, accompanied by a higher humidity level of 74%. For a deeper look at the conditions during May, check out Yountville weather in May.

In comparing the weather of July and June, July tends to be slightly warmer, with average temperatures reaching 24°C (76°F) compared to June's 23°C (74°F). Both months experience extreme highs, with July peaking at 41°C (106°F) and June at 42°C (108°F). However, July is drier, registering only 1 mm of precipitation, while June sees slightly more at 2 mm, although both months have no recorded rainy days. Humidity levels are notably lower in July at 44%, contrasted with June's higher humidity of 64%. For more details on June conditions, visit Yountville weather in June.

In July, temperatures range from a minimum of 12°C (54°F) to a scorching maximum of 41°C (106°F), with an average of 24°C (76°F). The month experiences virtually no precipitation, recording just 1 mm, and maintains a humidity level of 44%. In contrast, August brings slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum reaching 43°C (109°F), while the average remains stable at 24°C (75°F). August is also dry, with no recorded precipitation and lower humidity at 36%. For more detailed information about the weather in Yountville, check out Yountville weather in August.

July and September exhibit notable differences in weather patterns, particularly in temperature. July boasts a minimum temperature of 12°C (54°F) and an average of 24°C (76°F), with a maximum reaching 41°C (106°F). In contrast, September sees cooler conditions with a minimum of 7°C (45°F) and an average of 22°C (72°F), while the maximum temperature can spike to an impressive 44°C (112°F). Both months experience the same low level of precipitation, with just 1 mm recorded and no rainy days. Humidity remains constant at 44% for both months, providing a similar feel despite the temperature variations. For a more detailed look at September weather in Yountville, check out Yountville weather in September.

The weather in July and October shows a striking contrast in both temperature and precipitation patterns. In July, temperatures range from a pleasant minimum of 12°C (54°F) to a scorching maximum of 41°C (106°F), with barely any rain—just 1 mm and no rainy days—resulting in a low humidity of 44%. In contrast, October experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 19°C (66°F), while still reaching a high of 38°C (101°F). Rainfall increases significantly, totaling 31 mm over 2 days, and humidity rises to a more humid 65%. For a closer look at the climate specifics, you can check Yountville weather in October.

In July, the weather is characterized by warm temperatures, with a minimum of 12°C (54°F) and an average of 24°C (76°F), peaking at a scorching maximum of 41°C (106°F). This month experiences very little precipitation, with just 1 mm and no rainy days, alongside a relatively low humidity level of 44%. In contrast, November brings a significant shift in weather, where temperatures range from a chilly minimum of -1°C (30°F) to an average of 13°C (56°F), reaching a maximum of 29°C (85°F). Rainfall is much more frequent, totaling 43 mm over five days, and the humidity rises substantially to 84%. This stark difference in weather conditions between the two months highlights the transition from the hot and dry summer to the cooler and wetter fall. For a closer look at the weather specifics during this time, you can refer to Yountville weather in November.

July and December present stark contrasts in weather. In July, temperatures soar, with an impressive maximum reaching up to 41°C (106°F) and an average of 24°C (76°F), contributing to a dry atmosphere with only 1 mm of precipitation and a humidity level of 44%. In contrast, December is much cooler, with minimum temperatures dropping to 0°C (33°F) and an average of just 10°C (50°F). The month is characterized by significantly higher precipitation at 87 mm (3.4 in) over 8 days, while humidity levels rise to 83%. For a more detailed look at the weather during this time, you can check out Yountville weather in December.

Compare Yountville's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Yountville

As July arrives in Yountville, it brings a vibrant transformation in the weather, characterized by warm temperatures that soar compared to other months. With an average warmth that invites outdoor activities, this month boasts a consistent lack of rainfall, ensuring mostly dry days that are perfect for exploring the scenic vineyards. The pleasant humidity levels add to the charm, making Yountville a delightful destination for summer enthusiasts. For those curious about the overall climate patterns in this beautiful region, be sure to check out Yountville Climate.