Last updated: February 24, 2025
In Calistoga, United States, May brings a delightful mix of warm days and cool nights. The maximum temperature can reach a sizzling 37°C (99°F), while the average temperature hovers around a pleasant 18°C (64°F). Early mornings may dip to a brisk 4°C (39°F), making for refreshing starts to the day. With just 23 mm (0.9 in) of rain spread over 3 days, the month allows for ample sunshine, despite an 80% humidity level that adds a touch of tropical feel. May in Calistoga is characterized by its vibrant weather, perfect for outdoor activities and enjoying the natural beauty of the region.
In May, Calistoga experiences a delightful shift towards warmer weather, with temperatures ranging from a comfortable 4°C (39°F) at night to a sultry 37°C (99°F) during the day. The average temperature climbs to 18°C (64°F), marking a significant increase from the cooler months of earlier in the year. As spring fully springs into action, the city's climate becomes more inviting, perfect for outdoor activities and vineyard tours. This trend of rising temperatures continues into June, suggesting that May serves as a pleasant transition from the brisk early months to the warm summer ahead. Whether you're exploring the local landscapes or enjoying a glass of wine, May in Calistoga promises a refreshing warmth that enchants both residents and visitors alike.
In Calistoga, the month of May marks a notable transition in precipitation patterns, with only 23 mm (0.9 inches) falling over just three days. This decline follows a series of wetter months, especially February, which recorded 141 mm (5.6 inches), setting a striking contrast to the much drier conditions ahead. By May, the landscape begins to shift toward summer's embrace, as both the frequency and intensity of rain decrease significantly. This trend is further emphasized as the region heads into June, where precipitation drops to a mere 2 mm (0.1 inches), indicating the onset of a prolonged dry spell that lasts through the summer months. The gradual tapering off of rainfall in May underscores the seasonal rhythm characteristic of Calistoga, hinting at the warm, sun-kissed days that are soon to dominate the forecast.
As May arrives in Calistoga, the humidity levels settle at a comfortable 80%, maintaining the trend established in April. This marks a transition from the cooler, more humid months of winter and early spring, where humidity peaked at 86% in January. The gradual decline in humidity from January through June indicates a shift towards drier conditions, with summer months promising more sunshine and lower humidity levels—76% in June and dropping further to 70% in July. This gradual decrease not only enhances the outdoor experience but also emphasizes the region's appeal as a warm weather destination. As the month progresses, residents and visitors alike can enjoy the fresh, albeit slightly humid, air that characterizes late spring in this beautiful part of California.
As May unfolds in Calistoga, the UV Index reaches a peak of 10, signaling very high exposure levels and a burn time of just 15 minutes. This trend reflects the gradual increase in UV intensity observed throughout the spring, with the index climbing from a moderate 3 in January to a striking 9 in April. As summer approaches, residents and visitors should be well aware of the intensified sunlight, especially with the upcoming months showing even higher levels of UV radiation. It's crucial to adopt sun safety measures to protect your skin during this time of heightened risk. For more details on UV levels throughout the year, check the complete guide at Calistoga UV Index.
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As May arrives in Calistoga, the sun shines brighter than ever, boasting an impressive 357 hours of sunshine—one of the highest monthly totals of the year. This delightful trend continues a steady increase from January’s 141 hours, with each month bringing more light and warmth as spring transitions into summer. The sunshine peaks in July with 394 hours, creating the perfect backdrop for outdoor activities and vineyard visits. However, even as the days gradually shorten towards autumn, the residents and visitors of Calistoga can revel in the sun-drenched days of May, fostering a spirit of vibrancy and relaxation that makes this charming town shine. With each season showcasing its unique beauty, the remarkable increase in sunshine hours during the warmer months symbolizes the joyful embrace of nature that Calistoga has to offer.
As spring transitions into summer, the likelihood of sunny weather in Calistoga sees a significant upswing, particularly in May. With an impressive 85% chance of sunshine, May stands out as a beacon of brightness, following a steady increase from just 37% in January. This upward trend continues into the summer months, peaking in June at 88%, but May offers a delightful balance of warmth and sunshine, making it ideal for outdoor activities. The gradual shift from an overcast winter to a sun-drenched May not only enhances the landscape but also lifts the spirits of locals and visitors alike, heralding the vibrant season ahead.
As spring blooms into summer, Calistoga experiences a delightful increase in daylight hours. Starting with nine hours in January, the length of daylight steadily grows, reaching 14 hours by May. This trend of extended sunlight continues into June and July, creating vibrant evenings perfect for outdoor activities. The gradual decrease resumes in August, transitioning back to 12 hours by September. This rhythmic cycle of daylight not only marks the changing seasons but also invites residents and visitors alike to bask in the warmth and beauty of the longer, sun-drenched days that May offers.
In Calistoga, the wind speed begins to pick up in May, reaching an average of 2.5 m/s (6 mph), making it one of the breezier months of the year. This gentle increase is a refreshing change from the cooler spring months, where winds ranged from 1.8 to 2.2 m/s. As summer approaches, June follows closely with a slight decrease to 2.4 m/s (5 mph), indicative of the warm, inviting climate that draws visitors to this charming region. Overall, the transition into May marks a notable shift, suggesting that the area experiences a pleasant breeze that enhances the vibrant outdoor atmosphere, paving the way for sun-soaked afternoons and picturesque vineyard tours.
The weather in Calistoga changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Calistoga and find detailed weather information for every month.
May and January present contrasting weather patterns, with May showcasing a warmer climate. In May, temperatures range from a minimum of 4°C (39°F) to a maximum of 37°C (99°F), averaging around 18°C (64°F), and the month experiences relatively low precipitation at 23 mm (0.9 in) over just 3 days. In contrast, January is much cooler, featuring temperatures that dip as low as -1°C (30°F) and cap at 25°C (77°F), with an average temperature of 9°C (49°F). January also brings significantly more rainfall, totaling 137 mm (5.4 in) across 8 days, with slightly higher humidity at 86%. For more detailed insights, check out Calistoga weather in January.
May and February present contrasting weather patterns. May typically features milder temperatures, with a minimum of 4°C (39°F) and an average of 18°C (64°F), peaking at a warm 37°C (99°F). In contrast, February sees colder conditions, starting at a minimum of -3°C (27°F) and averaging 10°C (51°F), with a maximum of 27°C (80°F). Precipitation is significantly higher in February, totaling 141 mm (5.6 in) over 7 days, compared to just 23 mm (0.9 in) over 3 days in May. Despite both months having similar humidity levels, February's dampness contributes to a chillier feel. For more specific details, check Calistoga weather in February.
When comparing the weather in May and March, it's evident that May offers warmer temperatures, with averages around 18°C (64°F) compared to March's cooler average of 11°C (53°F). While May can peak at a sweltering 37°C (99°F), March's maximum temperature reaches a more moderate 29°C (85°F). Additionally, March experiences significantly more precipitation, with 92 mm (3.6 in) over approximately 10 days, while May sees only 23 mm (0.9 in) across just 3 days. Humidity levels are fairly similar, hovering around 80% in May and 83% in March. For more detailed insights into March weather, you can check out Calistoga weather in March.
In comparing the weather of May and April, we see a notable increase in temperatures. May boasts a minimum temperature of 4°C (39°F) and an average of 18°C (64°F), reaching a maximum of 37°C (99°F), whereas April has slightly cooler temperatures, with a minimum of 2°C (36°F) and an average of 15°C (59°F), maxing out at 33°C (92°F). While both months share the same humidity level of 80%, May experiences less precipitation, with only 23 mm (0.9 in) over 3 days compared to April's higher 39 mm (1.5 in) spread over 5 days. This suggests that May offers warmer and drier conditions, making it generally more pleasant for outdoor activities. For more detailed insights into April's climate, check Calistoga weather in April.
In May, temperatures in Calistoga range from a minimum of 4°C (39°F) to a maximum of 37°C (99°F), with an average temperature of 18°C (64°F). The month sees around 23 mm (0.9 in) of precipitation over approximately 3 days, and humidity levels are relatively high at 80%. In contrast, June experiences a milder climate, with minimum temperatures of 9°C (49°F), an average of 22°C (72°F), and highs reaching up to 42°C (107°F). This month boasts significantly less precipitation, only 2 mm (0.1 in) over no rainy days, and slightly lower humidity at 76%. For more detailed information, refer to Calistoga weather in June.
In May, temperatures can range significantly, with a minimum of 4°C (39°F) and a maximum reaching up to 37°C (99°F), resulting in an average of 18°C (64°F). The month experiences relatively high humidity at 80% and sees around 23 mm (0.9 in) of precipitation over 3 days. In contrast, July brings warmer conditions, featuring a minimum temperature of 12°C (53°F) and an average of 23°C (74°F), with maximums soaring to 40°C (105°F). Notably, July is dry, with no recorded precipitation, and the humidity decreases to 70%. For a more detailed look at July weather, visit Calistoga weather in July.
When comparing the weather in May and August, significant differences emerge, particularly in temperature and precipitation. May experiences a wider temperature range, with minimums dipping to 4°C (39°F) and maximums soaring to 37°C (99°F), accompanied by an average temperature of 18°C (64°F). The month is relatively humid at 80% and sees about 23 mm (0.9 in) of precipitation over three days. In contrast, August offers a warmer climate with minimum temperatures of 11°C (52°F) and maximums reaching a blistering 41°C (106°F), averaging 23°C (73°F). It stands out for its dry conditions, with no recorded precipitation throughout the month and lower humidity at 66%. For more detailed information on the climate during this time, check Calistoga weather in August.
The weather in May tends to be quite variable, with temperatures ranging from a cool minimum of 4°C (39°F) to a scorching maximum of 37°C (99°F), and an average temperature of 18°C (64°F). During this month, you can expect about 23 mm (0.9 in) of precipitation over roughly three days, contributing to a higher humidity level of 80%. In contrast, September offers a more stable climate, featuring a minimum temperature of 7°C (46°F) and a maximum reaching up to 43°C (109°F), with an average temperature of 21°C (71°F). The month is notably dry, with only 2 mm (0.1 in) of precipitation spread over zero rainy days and a lower humidity level of 68%. For more details on September weather, check out Calistoga weather in September.
May and October share similar average temperatures, both hovering around 18°C (64°F), but the overall weather experience differs notably. In May, temperatures can spike to a maximum of 37°C (99°F), while in October, the highest temperatures also reach 37°C (99°F) but with slightly cooler minimums. Precipitation is more pronounced in October, with 38 mm (1.5 in) recorded over just 2 days, compared to May's 23 mm (0.9 in) spread over 3 days. Additionally, humidity levels are higher in May at 80%, while October sees a more comfortable 72%. For more detailed information on the October weather, you can check Calistoga weather in October.
In May, the weather is generally warmer, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 37°C (99°F) and an average of 18°C (64°F). The month sees relatively low precipitation at 23 mm (0.9 in) over about 3 days, coupled with a humidity level of 80%. In contrast, November experiences cooler temperatures, with a minimum of 0°C (31°F) and a maximum of 29°C (84°F), averaging at 12°C (55°F). This month is wetter, receiving 51 mm (2.0 in) of rainfall over approximately 5 days, and slightly higher humidity at 84%. For more details on November weather, check Calistoga weather in November.
The weather in May is generally warmer than in December, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 37°C (99°F) and an average of 18°C (64°F). In contrast, December sees cooler temperatures, with a range from -1°C (30°F) to a maximum of 23°C (74°F) and an average of 9°C (49°F). May experiences significantly less precipitation at 23 mm (0.9 in) over just 3 days, while December sees much wetter conditions, receiving 95 mm (3.7 in) across 8 days. Additionally, humidity levels are relatively high in both months, with May at 80% and December at 84%. For more detailed information on December weather, check out Calistoga weather in December.
As May unfolds in Calistoga, it brings a vibrant transition from the cooler spring months to the warmth of summer, characterized by higher average temperatures that create a pleasant atmosphere for outdoor activities. With occasionally warm days reaching up to 37°C (99°F) and refreshing nights dipping to cooler lows, the month offers a perfect balance for those seeking enjoyment in nature. While precipitation is minimal, with only a few rainy days, the increased humidity adds a touch of moisture to the air, enhancing the lush beauty of the region. For a deeper dive into what to expect weather-wise throughout the year, check out Calistoga Climate.