Last updated: February 24, 2025
Experience the diverse climate of Sun Valley, United States in May, where temperatures showcase a captivating range from a maximum of 24°C (75°F) to a minimum of -12°C (10°F), with an average hovering around 4°C (40°F). This transitional month witnesses 61 mm (2.4 in) of precipitation spread across 13 days, contributing to the area's lush surroundings. With an average humidity of 66%, May in Sun Valley offers a refreshing yet variable weather experience, inviting outdoor adventures and cozy moments alike.
In May, Sun Valley begins to shake off the chill of winter, embracing a more temperate climate. With minimum temperatures around -12°C (10°F) and average daily highs peaking at 24°C (75°F), the transition is unmistakable. The average temperature of 4°C (40°F) signifies the heart of spring, where crisp mornings give way to pleasantly warm afternoons. As the snows continue to melt and the region bursts into life, residents and visitors alike can revel in the beauty of blossoming landscapes, making May a delightful prelude to the warmer months ahead. This shift in temperatures not only highlights the warming trend but also sets the stage for the vibrant summer season that follows.
In Sun Valley, May ushers in a moderate precipitation total of 61 mm (2.4 in) over the course of 13 days, marking a slight increase compared to April's 52 mm (2.0 in). This consistent rainfall reflects the region's transition into summer, as it follows the wetter months of January and February, which see precipitation levels peaking at 56 mm and 86 mm, respectively. Interestingly, after the spring showers in May, June experiences a significant drop to only 46 mm (1.8 in) and 9 rainy days, suggesting a drying trend as the warm season approaches. Overall, May serves as a pivotal month where lingering spring moisture sets the stage for the drier summer ahead, while the consistent rainfall contributes to the lush landscapes characteristic of the area during this time.
As spring unfolds in Sun Valley, May brings a notable shift in humidity levels, dropping to 66% from April's 76%. This transition marks a significant departure from the high humidity of the earlier months, which consistently hovered above 85% from January to March. By May, the air feels lighter and more comfortable, setting the stage for the warm summer days ahead. The declining trend continues into June, where humidity further decreases to 62%. This gradual reduction in moisture not only enhances outdoor enjoyment but also allows residents and visitors to revel in the region’s stunning natural beauty without the oppressive dampness characteristic of the winter months.
In May, Sun Valley experiences a notable surge in sun intensity, with the UV Index soaring to 11, categorizing exposure as extreme. This significant jump from a UV Index of 9 in April highlights the urgency for sun protection, as the burn time shortens to just 10 minutes—half the time required earlier in the spring. As temperatures rise, outdoor activities become more frequent, making awareness of UV radiation vital. Those venturing outside must be vigilant and ready to shield themselves from the sun’s powerful rays. For further insights on UV trends throughout the year, visit Sun Valley UV Index.
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May in Sun Valley, United States, shines brightly with 352 hours of glorious sunshine, marking a significant leap from the 307 hours enjoyed in April. This month not only welcomes warmer temperatures but also heralds the peak of spring, positioning May as a delightful prelude to the sunnier days of summer. Following May, June escalates the sunlit experience even further, reaching 384 hours, indicating a steady increase in daylight that carries into the summer months. As the seasons change, sunshine hours continue to rise in Sun Valley, creating a perfect backdrop for outdoor adventures and scenic retreats. The general trend highlights the transition from the briskness of winter, where January has a mere 142 hours of sunshine, to the vibrant, sun-soaked days of late spring and beyond, illustrating the region's charm and appeal for those seeking warmth and outdoor enjoyment.
As we transition into May in Sun Valley, the likelihood of sunny weather sees a dip to 46%, reflecting a slight decrease from the months of April and March. While this is a moderate chance, it hints at a trend where spring months offer less predictable weather compared to the approaching summer. In fact, May is sandwiched between the promising sunny days of March (57%) and the clear skies of June (78%), suggesting that while sunshine is certainly possible, the month may still carry remnants of spring variability. This transitional phase prepares residents and visitors alike for the glorious summer days that follow, making every sunny moment in May feel like a special treat amidst the unpredictable weather patterns.
As spring unfolds in Sun Valley, the increasing daylight heralds a vibrant transition into summer. In May, residents can bask in 14 hours of daylight, a significant leap from just 9 hours in January. This upward trend continues into June with 15 hours of sunshine, creating perfect conditions for outdoor activities and exploration. The daylight duration gradually tapers off as the year progresses, with 13 hours in August and 12 hours in September, marking the onset of autumn. Overall, the rhythm of daylight in Sun Valley not only reflects the passage of time but also invites an appreciation for the longer, sunlit days that characterize late spring and early summer.
In May, Sun Valley experiences a gentle breeze, with an average wind speed of 2.0 m/s (5 mph), mirroring the calmness of the previous month. As spring unfolds, the wind begins to pick up slightly from the winter months, where speeds were around 1.7 m/s to 2.1 m/s. This consistent breeze not only enhances the region's vibrant outdoor activities but also sets the stage for the upcoming summer, where winds can increase to 2.4 m/s in June. Overall, the gradual rise in wind speeds from January through May reflects the seasonal transition, helping to create a refreshing atmosphere for residents and visitors alike.
The weather in Sun Valley 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 Sun Valley and find detailed weather information for every month.
May and January present significantly different weather patterns. In May, temperatures range from a minimum of -12°C (10°F) to a maximum of 24°C (75°F), with an average of 4°C (40°F). The month sees about 61 mm (2.4 in) of precipitation over 13 days, accompanied by a relatively moderate humidity level of 66%. In contrast, January experiences much colder conditions, with temperatures plummeting to a minimum of -27°C (-16°F) and only reaching a maximum of 2°C (36°F), resulting in an average temperature of -8°C (17°F). Precipitation in January is slightly lower, at 56 mm (2.2 in), occurring over 10 days, but the humidity is notably higher at 91%. These differences illustrate how May offers more temperate weather compared to the harsh cold of January. For more detailed characteristics of January weather, visit Sun Valley weather in January.
When comparing the weather in May and February, a stark contrast emerges in temperatures and overall conditions. May experiences milder temperatures, ranging from a minimum of -12°C (10°F) to a maximum of 24°C (75°F), averaging around 4°C (40°F), while February is much colder, with temperatures dipping as low as -22°C (-8°F) and only reaching a maximum of 6°C (42°F). Additionally, February sees higher humidity levels at 92%, compared to May's 66%, and while both months have 13 days of precipitation, February's total rainfall of 86 mm (3.4 in) surpasses May's 61 mm (2.4 in). This makes February a much wetter month overall. For those interested in detailed February weather patterns, Sun Valley weather in February provides further insights.
When comparing the weather in May and March, there is a noticeable shift in temperature and humidity. May generally sees milder temperatures, with averages around 4°C (40°F) and a maximum of 24°C (75°F), providing a pleasant transition into spring. In contrast, March is much colder, with an average temperature of -3°C (26°F) and a maximum of just 10°C (50°F), making it still feel quite wintry. Although both months experience similar levels of precipitation—around 60 mm (2.4 in)—March has slightly higher humidity at 85% compared to May's 66%. For those interested in more detailed weather information specific to March, Sun Valley weather in March offers additional insights.
In comparing the weather between April and May, significant differences emerge. May experiences a more moderate temperature range, with minimums around -12°C (10°F), averages of 4°C (40°F), and maximums reaching up to 24°C (75°F). In contrast, April has a colder profile with minimum temperatures dipping to -16°C (3°F), an average of 0°C (31°F), and maximums only reaching 14°C (57°F). While both months see a fair amount of precipitation—61 mm (2.4 in) in May compared to 52 mm (2.0 in) in April—May tends to have slightly more rainfall spread over 13 days versus April's 11. Additionally, April's humidity sits higher at 76%, compared to May's 66%. For a detailed look at April's conditions, you can visit Sun Valley weather in April.
In May, temperatures range from a chilly minimum of -12°C (10°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 4°C (40°F). This month sees relatively high precipitation at 61 mm (2.4 in) over 13 days, combined with a humidity level of 66%. In contrast, June warms up significantly, with temperatures dipping only to -4°C (24°F) and reaching up to 28°C (82°F), resulting in a higher average of 11°C (52°F). Additionally, June experiences lower precipitation, totaling 46 mm (1.8 in) over just 9 days, and slightly lower humidity at 62%. For a detailed look at the weather in June, check out Sun Valley weather in June.
The weather in May can be quite variable, with temperatures ranging from a chilly minimum of -12°C (10°F) to a pleasant maximum of 24°C (75°F), resulting in an average of around 4°C (40°F). This month experiences more substantial precipitation, totaling 61 mm (2.4 in) over 13 days, alongside a higher humidity level of 66%. In contrast, July brings warmer and more stable conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 28°C (83°F), averaging at 16°C (62°F). July is also drier, with only 15 mm (0.6 in) of rain over just 4 days and a lower humidity of 53%. For more details, check out Sun Valley weather in July.
May and August in Sun Valley present contrasting weather experiences. In May, temperatures range from a chilly minimum of -12°C (10°F) to a comfortable maximum of 24°C (75°F), with an average of 4°C (40°F). The month sees significant precipitation, with about 61 mm (2.4 in) spread across 13 days, and a higher humidity of 66%. In contrast, August is much warmer, with temperatures fluctuating between a minimum of -3°C (27°F) and a maximum of 30°C (86°F), and an average of 15°C (60°F). This summer month enjoys significantly less rainfall, with only 33 mm (1.3 in) over just 6 days, and lower humidity at 42%. For more information on the weather specifics, check out Sun Valley weather in August.
May and September showcase distinct weather patterns, with May exhibiting a broader temperature range and higher precipitation. In May, temperatures can dip to -12°C (10°F) at their lowest and rise to a pleasant 24°C (75°F), averaging around 4°C (40°F) with 61 mm (2.4 in) of rain over approximately 13 days and a humidity level of 66%. In contrast, September experiences slightly lower minimum temperatures at -13°C (10°F) but can reach up to 29°C (84°F), with an average of 10°C (51°F). The month sees significantly less rainfall at only 30 mm (1.2 in) over 5 days and a drop in humidity to 46%. For more details on September weather specifics, check Sun Valley weather in September.
May and October showcase distinct weather patterns, with May typically presenting milder temperatures and more variability. In May, the temperatures range from a minimum of -12°C (10°F) to a pleasant maximum of 24°C (75°F), with an average of 4°C (40°F). The month receives around 61 mm (2.4 in) of precipitation over 13 days, coupled with a humidity level of 66%.
In contrast, October's weather is characterized by cooler temperatures, with a minimum dipping to -24°C (-11°F) and a slightly higher maximum of 22°C (71°F). Its average temperature hovers around 2°C (35°F), with total precipitation at 42 mm (1.6 in) over only 7 days, indicating less rainy days but a similar humidity level of 64%. For more detailed insights on October weather in this region, you can check Sun Valley weather in October.
May and November exhibit stark differences in weather patterns. May typically experiences a much broader temperature range, with minimums around -12°C (10°F) and maximums reaching up to 24°C (75°F), while averaging at 4°C (40°F). The month sees about 61 mm (2.4 in) of precipitation over 13 days, accompanied by a moderate humidity of 66%. In contrast, November presents a colder atmosphere, with temperatures dropping to a minimum of -23°C (-10°F) and averaging -4°C (26°F), peaking at only 12°C (55°F). Precipitation decreases to 46 mm (1.8 in) over 9 days, but the humidity rises to a more pronounced 83%. For detailed insights into specific conditions during this time, check this link: Sun Valley weather in November.
In May, the weather is significantly warmer with temperatures ranging from a chilly -12°C (10°F) at night to a pleasant 24°C (75°F) during the day, averaging around 4°C (40°F). The month experiences about 61 mm (2.4 in) of precipitation over 13 days, accompanied by a moderate humidity level of 66%. In sharp contrast, December brings much colder conditions, with temperatures dipping as low as -25°C (-12°F) and only reaching a maximum of 8°C (46°F), resulting in an average temperature of -9°C (16°F). The precipitation in December totals 49 mm (1.9 in) over just 10 days, and the humidity rises significantly to 87%. For more details on December weather specifics, you can explore Sun Valley weather in December.
As May unfolds in Sun Valley, temperatures begin to climb, offering a refreshing contrast to the chill of earlier months. With an average low much milder than the winter extremes, the spring warmth encourages outdoor activities amid the stunning scenery. However, don’t forget your umbrella; May brings some precipitation, often resulting in a mix of sunny days and occasional rain. The humidity levels increase, adding to the vibrant atmosphere of blooming landscapes. For those looking to plan their visit or get a better understanding of seasonal changes, more insights can be found at Sun Valley Climate.