Last updated: February 24, 2025
In April, Sun Valley, United States, experiences a diverse range of weather conditions that reflect the transition into spring. With an impressive maximum temperature of 14°C (57°F) and a chilly minimum of -16°C (3°F), visitors can expect days that vary from brisk to pleasantly mild, while the average temperature hovers around 0°C (31°F). Rain is moderately frequent, with a total precipitation amount of 52 mm (2.0 in) over approximately 11 days, contributing to a humidity level of 76%. This blend of cool temperatures and moisture sets the stage for beautiful spring landscapes, making April an intriguing time to explore this picturesque region.
In April, Sun Valley begins to shrug off the grips of winter, with temperatures showing a noticeable upward trend. The month kicks off with a minimum temperature of -16°C (3°F), but an average of 0°C (31°F) brings a refreshing promise of spring. As the days progress, the maximum temperatures rise significantly to 14°C (57°F), offering a delightful contrast to the frigid months preceding it. This transitional phase not only hints at the arrival of warmer weather but also showcases a gradual thaw that allows the landscapes to begin their vibrant transformation. The transition from the cold depths of winter to the cusp of spring makes April an intriguing time in Sun Valley, setting the stage for the warmer months ahead.
In April, Sun Valley experiences a moderate level of precipitation, with a total of 52 mm (2.0 in) falling over 11 days. This marks a slight decrease from the previous months, aligning with the gradual transition into spring. As winter's grip lessens, April's rainfall is essential for the budding vegetation, providing a crucial boost before the drier months of summer approach. The pattern indicates that while precipitation is less abundant than in February and March, it remains consistent, setting the stage for the sunnier days ahead. Overall, April serves as a bridge between the wetter, colder months and the arid warmth of late spring and summer, highlighting the importance of seasonal shifts in Sun Valley's climate.
In April, Sun Valley experiences a noticeable shift in humidity as it drops to 76%, signaling the onset of spring and a transition towards drier weather. This reduction follows the wetter winter months, where humidity levels peaked at 91% in January and 92% in February. As spring unfolds, the gradual decrease continues into May at 66%, highlighting a consistent trend of diminishing moisture leading into the warmer summer months. This pattern not only indicates the changing seasons but also enhances the region's appeal for outdoor activities, making April a refreshing time to embrace the natural beauty of Sun Valley.
As spring unfolds in Sun Valley, April brings a notable rise in the UV Index, reaching a high of 9, which falls into the very high exposure category. This increase is part of a broader trend, as UV levels climb sharply from the moderate indices seen in January and February to the heightened risks of March and April. With a burn time of just 15 minutes, the sun's intensity becomes a significant concern for outdoor enthusiasts. As May approaches, the UV Index escalates even further to 11, categorized as extreme, emphasizing the importance of sun safety as Idaho's dazzling sun shines brighter. To prepare for this seasonal shift, residents and visitors alike should stay informed and take protective measures. For detailed insights into the UV trends throughout the year, visit Sun Valley UV Index.
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As spring unfolds in Sun Valley, April shines brightly with 307 hours of sunshine, marking a delightful increase from the previous months. This rise reflects a trend of escalating sunlight as winter recedes, with hours of sunshine nearly doubling from January's 142 hours. The progression continues into May, where longer days usher in 352 hours of radiant light, setting the stage for the summer peak. This invitation to outdoor activity fosters a vibrant atmosphere, making April not just a transitional month, but a time of blossoming energy and opportunities to embrace the beauty of the season.
As April rolls into Sun Valley, the chances of enjoying sunny weather hover around 56%, maintaining a promising trend seen since earlier months. While March boasts a slightly higher likelihood at 57%, the slight dip in April signals a transition into Spring, where sunshine becomes more favorable compared to the cooler winter months. After the brisk chill of January and February, with only 35% and 40% chance of sun respectively, the sunny disposition of the region is evident as we approach the vibrant days ahead in May, which follows with a slight decrease to 46%. Overall, April stands as a pivotal month, bridging the chilly early year and the warmer, sunnier days of late Spring and Summer, where sunny probabilities shoot up to 78% in June.
As April unfolds in Sun Valley, the day's embrace grows longer, basking in an average of 13 hours of daylight. This marks a noticeable increase from 11 hours in March, signaling the arrival of spring and the sun's gradual dominance. As the month progresses, residents and visitors alike enjoy more sunlight compared to the winter months, which hovered around 9 to 10 hours. This steady rise in daylight hours not only lifts spirits but also invites outdoor activities and exploration, setting the stage for the abundant 14 hours of daylight that May promises. With this trend, the longer days are a joyous prelude to summer, where daylight peaks at 15 hours in June and July.
As April unfolds in Sun Valley, a gentle breeze greets visitors and locals alike, with average wind speeds of 2.0 m/s (4 mph). This month mirrors the calmer winds of the preceding March while maintaining a consistent flow that hints at the approaching spring. Notably, April's wind is part of a gradual increase observed in the months leading to summer, with June reaching a peak of 2.4 m/s (5 mph). The wind patterns suggest a harmonious transition from the subdued breezes of winter, where January brings a mere 1.7 m/s, to the livelier gusts of late spring and early summer. Overall, the April winds embody the balance of nature's gentle awakening, inviting outdoor adventures in the stunning landscapes of Sun Valley.
The weather in Sun Valley changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April'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.
April typically brings a noticeable warming trend compared to the cold depths of January. While January sees temperatures ranging from a chilling minimum of -27°C (-16°F) to an average of -8°C (17°F), April offers a much milder experience with temperatures starting at -16°C (3°F) and reaching an average of 0°C (31°F). Precipitation levels are similar in both months, with January recording 56 mm (2.2 in) compared to April's 52 mm (2.0 in), but April benefits from lower humidity at 76% versus January's higher level of 91%. Overall, April's weather is characterized by a gradual thaw, making it a more pleasant time of year, in contrast to the frigid conditions of January. For more details about January weather, check out Sun Valley weather in January.
In comparing the weather between February and April, April tends to be milder with average temperatures reaching around 0°C (31°F), while February experiences colder conditions with an average of -8°C (18°F). Additionally, February sees a lower maximum temperature of 6°C (42°F) compared to April's maximum of 14°C (57°F). Precipitation is also higher in February, totaling 86 mm over 13 days, compared to April's 52 mm over 11 days. Humidity levels, however, are more pronounced in February at 92%, while April's humidity stands at 76%. For a closer look at February weather specifics, visit Sun Valley weather in February.
When comparing the weather in April and March, April generally presents a milder climate. The average temperature rises from March's -3°C (26°F) to 0°C (31°F) in April, with April experiencing higher maximum temperatures of 14°C (57°F) compared to March's 10°C (50°F). Notably, the minimum temperature in April is also less severe, dropping to a minimum of -16°C (3°F) versus March's colder -22°C (-7°F). Although April sees a slight decrease in precipitation to 52 mm (2.0 in) over 11 days compared to March's 60 mm (2.4 in) over 12 days, its humidity levels are lower at 76% compared to March's 85%. For more details on March weather specifically, you can check Sun Valley weather in March.
April and May show a notable contrast in weather conditions. In April, temperatures range from a chilly minimum of -16°C (3°F) to a maximum of 14°C (57°F), with an average of around 0°C (31°F). The month experiences 52 mm (2.0 in) of precipitation over 11 days, accompanied by a humidity level of 76%. In contrast, May brings warmer temperatures, with a minimum of -12°C (10°F) and a maximum soaring to 24°C (75°F), resulting in an average temperature of 4°C (40°F). Precipitation slightly increases to 61 mm (2.4 in) over 13 days, while humidity drops to a more comfortable 66%. For more detailed insights on May weather, you can refer to Sun Valley weather in May.
In comparing the weather of April and June, it’s evident that June offers a much warmer climate. April experiences a chilly average temperature of about 0°C (31°F), with lows dipping down to -16°C (3°F) and highs reaching only 14°C (57°F). Additionally, April sees more humidity at 76% and slightly higher precipitation over 11 days, totaling 52 mm (2.0 in). In contrast, June enjoys a milder average temperature of 11°C (52°F), with minimum temperatures of -4°C (24°F) and maximums soaring to 28°C (82°F). June also has lower humidity (62%) and slightly less precipitation at 46 mm (1.8 in) over 9 days. For a detailed look at June weather specifics, check out Sun Valley weather in June.
April and July present stark contrasts in weather. In April, temperatures can dip as low as -16°C (3°F), with an average of around 0°C (31°F) and a maximum reaching 14°C (57°F). The month experiences substantial precipitation, totaling 52 mm (2.0 in) over approximately 11 days, while humidity remains relatively high at 76%. In contrast, July boasts much warmer conditions, with minimum temperatures at 0°C (32°F), an average of 16°C (62°F), and a peak of 28°C (83°F). Rainfall significantly decreases to 15 mm (0.6 in) spread over just 4 days, and humidity drops to 53%. For those looking for more detailed insights, you can find additional information at Sun Valley weather in July.
April and August present vastly different weather conditions. In April, temperatures range from a chilly -16°C (3°F) at night to a moderate 14°C (57°F) during the day, with an average of 0°C (31°F). The month also sees considerable humidity at 76% and about 52 mm (2.0 in) of precipitation over 11 days, indicating a damp and cool atmosphere. In contrast, August enjoys a much milder climate, with temperatures fluctuating from a low of -3°C (27°F) to a high of 30°C (86°F) and an average of 15°C (60°F). This month is significantly drier, receiving just 33 mm (1.3 in) of rain over 6 days and lower humidity at 42%. For more specific information on what to expect during this summer month, check out Sun Valley weather in August.
Comparing the weather in April and September reveals notable differences. In April, temperatures range from a chilly -16°C (3°F) at night to a moderate 14°C (57°F) during the day, with an average of 0°C (31°F). The month is quite wet, receiving 52 mm (2.0 in) of precipitation over 11 days and high humidity levels at 76%. In contrast, September experiences a warmer climate, with temperatures varying from a low of -13°C (10°F) to a high of 29°C (84°F) and an average of 10°C (51°F). This month sees significantly less rain, with only 30 mm (1.2 in) falling over 5 days, and humidity drops to a more comfortable 46%. For more information, check out Sun Valley weather in September.
In April, temperatures start to warm up with a minimum of -16°C (3°F) and an average of 0°C (31°F), peaking at a maximum of 14°C (57°F). The month typically experiences about 52 mm (2.0 in) of precipitation over 11 days, coupled with a humidity level of 76%. In contrast, October is noticeably cooler, with temperatures ranging from a minimum of -24°C (-11°F) to a maximum of 22°C (71°F) and an average temperature of 2°C (35°F). Precipitation is slightly lower at 42 mm (1.6 in) over just 7 days, and the humidity drops to 64%. For a more detailed look at October's weather specifics, check out Sun Valley weather in October.
April and November present contrasting weather patterns as the seasons transition. In April, temperatures range from a minimum of -16°C (3°F) to a maximum of 14°C (57°F), with an average of 0°C (31°F) and a humidity level of 76%. This month sees approximately 52 mm (2.0 in) of precipitation over 11 days. In contrast, November experiences colder conditions, with minimum temperatures dropping to -23°C (-10°F) and an average of -4°C (26°F), peaking at 12°C (55°F). The humidity is slightly higher at 83%, and precipitation amounts to about 46 mm (1.8 in) over 9 days. For more specific details about November weather, you can refer to Sun Valley weather in November.
April and December showcase striking contrasts in weather conditions. In April, temperatures range from a minimum of -16°C (3°F) to a maximum of 14°C (57°F), with an average temperature around 0°C (31°F). The month typically sees about 52 mm (2.0 in) of precipitation spread over approximately 11 days, accompanied by a humidity level of 76%. In contrast, December brings colder temperatures, with a minimum of -25°C (-12°F) and a maximum of 8°C (46°F), averaging -9°C (16°F). Precipitation is slightly lower at 49 mm (1.9 in) with 10 days of rain or snow, and humidity levels are higher at 87%. For more specific details on December weather, you can check Sun Valley weather in December.
As April unfolds in Sun Valley, the transition from winter to spring becomes palpable, marked by milder temperatures and increased moisture. Unlike the harsh cold of previous months, April brings a refreshing average of around 0°C that invites a sense of renewal. However, don’t let the rising temperatures deceive you; chilly nights can still dip to an invigorating -16°C. Frequent rainy spells contribute to the month’s 52 mm of precipitation, often accompanied by a humidity level of 76%, creating a brisk atmosphere that invigorates the spirit. This blend of cool air and occasional showers sets the stage for the lush beauty that characterizes Sun Valley as it moves into the warmer months. For a deeper dive into the patterns that define this charming destination, explore the Sun Valley Climate.