Last updated: February 24, 2025
In September, Squaw Valley experiences an inviting climate, with average temperatures hovering around 23°C (74°F), peaking at a comfortable 40°C (105°F). The minimum temperature dips to a refreshing 7°C (45°F), providing a delightful range for outdoor activities. This month boasts an exceptionally dry spell, with no precipitation recorded and only 5 mm (0.2 in) expected, allowing for ample sunshine against the stunning mountainous backdrop. Coupled with a humidity level of 42%, the weather is ideal for both adventure seekers and those looking to unwind in the natural splendor of this picturesque location.
In September, Squaw Valley experiences a delightful transition as summer gently yields to autumn. With minimum temperatures around 7°C (45°F) and an average of 23°C (74°F), the days remain pleasantly warm, perfect for outdoor adventures. However, the month can still reach heights of 40°C (105°F), reminding visitors of summer's lingering warmth. This trend of warm days paired with cool nights makes September an ideal time for hiking and exploring the vibrant fall foliage. As the temperatures begin to dip towards the end of the month, the area's natural beauty becomes even more pronounced, offering a stunning backdrop for those seeking both relaxation and adventure.
In September, Squaw Valley experiences a notable shift in precipitation patterns as summer draws to a close. With only 5 mm (0.2 in) of rainfall observed throughout the month and no recorded precipitation days, it's clear that the region enjoys a brief respite from moisture before the arrival of autumn. This minimal rainfall stands in stark contrast to the earlier summer months, where rain almost became an afterthought, with July and August receiving just 2 mm and 3 mm respectively. As the valley prepares for the wetter months ahead, September serves as a transitional period, foreshadowing the increase in precipitation that typically follows in October and November.
In Squaw Valley, September marks a noticeable shift in humidity levels, with a recorded 42% that breaks away from the significantly lower figures of summer months, which dipped as low as 30% in August. This seasonal transition is aligned with the pattern of increasing humidity that typically resumes in the fall, preparing the valley for the more moist conditions of October and November. Notably, the summer months of June and July experienced the driest air, but as September arrives, the gradual uptick in humidity heralds the subtle change in weather, setting the stage for autumn's cool embrace.
As September rolls in, Squaw Valley experiences a notable decline in UV intensity compared to the peak summer months, with a UV Index of 9 categorizing it as very high. This means that while the risks of sunburn remain significant, the burn time increases to 15 minutes, allowing for a bit more outdoor enjoyment. It's a transitional month, bridging the extremes of summer's UV Index of 12 in July and the more moderate conditions that follow in October. As the days grow shorter and temperatures begin to cool, UV exposure lessens, yet it’s still essential to stay vigilant to protect your skin. For more detailed insights on UV levels throughout the year, check out Squaw Valley UV Index.
UV Risk Categories
As summer gracefully transitions into fall, September basks in a delightful 320 hours of sunshine in Squaw Valley, providing a warm send-off to the season. This month showcases a notable decrease from the zenith of summer peaks, where July and June shine with 390 and 386 hours respectively. However, September's golden rays remain abundant, offering a serene backdrop for autumn adventures. The gentle decline in daylight hours from the bustling summer months is balanced by the vibrant hues of fall, making it an enchanting time to explore the stunning landscapes of the valley. As daylight wanes and October approaches with 293 hours, the gradual shift in sunlight sets the stage for an inviting and picturesque transition into cozy autumn days.
As September rolls into Squaw Valley, residents and visitors can bask in the welcoming glow of the sun, with a remarkable 92% chance of sunny weather. This month continues the upward trend in sunshine, following the peak of 96% in August, making it a delightful time for outdoor activities. The sun-soaked days of late summer seamlessly transition into the crisp beginnings of autumn, while the likelihood of sunny weather remains significantly higher compared to the cooler months ahead, where October dips to 69%. This pattern not only highlights September as a prime time for exploration but also showcases the region's charm as it prepares for the picturesque fall backdrop.
As summer gracefully transitions to autumn, September in Squaw Valley witnesses a gentle decline in daylight hours, averaging 12 hours. This marks a shift from the prolonged days of summer, where July and August enjoyed an abundant 14 hours of sunlight. The gradual reduction reflects the changing seasons, as September starts to blend the lingering warmth of summer with the crispness of fall. In the coming months, daylight will further decrease, dropping to 11 hours in October and continuing to taper downwards, illustrating the cyclical nature of light and the inevitable approach of winter. Overall, September encapsulates a transitional moment, inviting both reflection on the season past and anticipation for the beauty of autumn.
In Squaw Valley, the September wind dances gently through the mountains, maintaining an average speed of 1.5 m/s (3 mph), a familiar embrace reminiscent of the preceding months. As summer wanes, the wind's consistency is a soothing presence, paralleling the slightly rising speeds of late spring and early summer, peaking at 1.9 m/s (4 mph) in June. The gradual ebb of the wind begins its descent toward autumn, with a gentle dip to 1.6 m/s (4 mph) in October, before reaching its calmest in the later part of the year. This subtle fluctuation not only reflects the region's shifting seasons but also accentuates the peaceful rhythm of life in Squaw Valley, making September a serene time to witness the interplay of wind and landscape.
The weather in Squaw Valley changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Squaw Valley and find detailed weather information for every month.
September and January present a striking contrast in weather conditions. September boasts milder temperatures, with an average of 23°C (74°F) and maximums reaching up to 40°C (105°F), while experiencing minimal precipitation at just 5 mm (0.2 in) and low humidity at 42%. In stark comparison, January sees much cooler temperatures with an average of 7°C (46°F), minimums dropping to -5°C (23°F), and maximums only reaching 20°C (69°F). This winter month is also characterized by significantly higher precipitation, totaling 154 mm (6.1 in) over about 7 days, along with increased humidity at 82%. For more specific details on January conditions, you can check out Squaw Valley weather in January.
September and February showcase strikingly different weather patterns. In September, temperatures soar with a minimum of 7°C (45°F) and an average high of 23°C (74°F), reaching a scorching maximum of 40°C (105°F). The month is relatively dry, registering only 5 mm (0.2 in) of precipitation and boasting an average humidity of 42%. In stark contrast, February experiences much cooler temperatures, with a minimum of -6°C (22°F) and an average of 8°C (47°F), peaking at 24°C (75°F). This month is considerably wetter, accumulating 147 mm (5.8 in) of precipitation over 9 days and featuring a high humidity level of 85%. For a detailed look at February conditions, check out this link: Squaw Valley weather in February.
September and March present starkly contrasting weather conditions. In September, temperatures soar with a minimum of 7°C (45°F) and can peak at a scalding 40°C (105°F), underlining a notably dry month with just 5 mm (0.2 in) of precipitation and low humidity at 42%. In contrast, March experiences much cooler temperatures, ranging from a chilling minimum of -3°C (26°F) to a maximum of 26°C (80°F). This month is marked by significant rainfall, accumulating to 174 mm (6.8 in) over 13 days, accompanied by much higher humidity levels at 80%. For more details on the weather in this transitional month, explore Squaw Valley weather in March.
September and April present contrasting weather patterns. In September, temperatures soar with a minimum of 7°C (45°F) and an average of 23°C (74°F), peaking at a scorching 40°C (105°F). The month is characterized by minimal precipitation, with only 5 mm (0.2 in) recorded over zero days, leading to a lower humidity level of 42%. In contrast, April experiences much cooler temperatures, ranging from a minimum of -2°C (28°F) to a pleasant average of 14°C (57°F), capping at 30°C (86°F). However, this month is significantly wetter, with 69 mm (2.7 in) of rainfall spread over 7 days, resulting in a higher humidity of 72%. For more details on April weather, you can check Squaw Valley weather in April.
In September, the weather is characterized by warm temperatures, with averages reaching 23°C (74°F) and maximums soaring up to 40°C (105°F), while experiencing minimal precipitation of just 5 mm (0.2 in) over the month. The humidity is relatively low at 42%, creating a dry heat that can feel intense during the day. In contrast, May showcases cooler temperatures, with an average of 18°C (64°F) and highs reaching 35°C (95°F); however, it has a higher precipitation level of 41 mm (1.6 in) and rain over six days, resulting in more humidity at 58%. The significant difference in precipitation and humidity levels gives May a much different feel compared to the dry heat of September. For more detailed information about May weather specifically, check out Squaw Valley weather in May.
In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 40°C (105°F), with an average temperature of 23°C (74°F). The month enjoys very little rainfall, receiving only 5 mm (0.2 in) across no precipitation days, and maintains a humidity level of 42%. In contrast, June features slightly higher average temperatures at 24°C (75°F) while still reaching a maximum of 40°C (104°F). It experiences a bit more humidity at 49% and sees minimal rainfall, with 5 mm (0.2 in) falling on just one day. For a detailed look at the weather specifics for June, visit Squaw Valley weather in June.
September and July both experience warm weather, but they differ significantly in temperature and humidity. In September, temperatures range from a minimum of 7°C (45°F) to a maximum of 40°C (105°F), with an average temperature of 23°C (74°F). In contrast, July starts off warmer, with a minimum temperature of 15°C (58°F) and an average of 28°C (82°F), peaking at 41°C (106°F). Both months see very low precipitation, with September receiving only 5 mm (0.2 in) and July slightly less at 2 mm (0.1 in), and neither month records any rainy days. Additionally, September has a higher humidity level of 42% compared to July's 36%. For more specific information on July weather in particular regions, you can check this link: Squaw Valley weather in July.
In September, temperatures range significantly from a cool minimum of 7°C (45°F) to a maximum of 40°C (105°F), with an average of 23°C (74°F). The month experiences very little precipitation, with only 5 mm (0.2 in) recorded, and maintains a humidity level of 42%. In contrast, August is warmer overall, with minimum temperatures starting at 15°C (60°F), peaking at a maximum of 42°C (108°F), and an average of 27°C (81°F). This month also has minimal rainfall, but slightly less than September, amounting to just 3 mm (0.1 in), and a lower humidity level of 30%. For a more detailed look at the climate conditions, you can check Squaw Valley weather in August.
September typically experiences warmer weather, with average temperatures around 23°C (74°F) and maximum highs reaching up to 40°C (105°F). Meanwhile, October sees a notable drop in temperatures, averaging 17°C (62°F) and peaking at 33°C (92°F). Additionally, while September is quite dry with no recorded precipitation, October registers a slight increase in rainfall, totaling 25 mm (1.0 in) over just one day. The humidity also rises in October to 59%, compared to September's 42%. For more information on specific weather conditions, check out Squaw Valley weather in October.
September weather is characterized by warm temperatures, with minimums around 7°C (45°F) and average highs reaching up to 40°C (105°F). The month typically experiences minimal precipitation, averaging only 5 mm (0.2 in) over the course of zero rainy days, accompanied by a pleasant humidity level of 42%. In contrast, November introduces a significant shift, with temperatures dropping to a minimum of -5°C (23°F) and an average high of just 26°C (79°F). The month is much wetter, receiving about 69 mm (2.7 in) of rain over four days and exhibiting a higher humidity of 78%. For a deeper look at what to expect, check out Squaw Valley weather in November.
The weather in September is characterized by warm temperatures and very low humidity, with an average max temperature of 40°C (105°F) and minimal precipitation. In contrast, December brings a significant drop in temperatures, averaging around 7°C (45°F), and the coldest nights can dip to -3°C (27°F). December is also notably wetter, with 116 mm (4.6 in) of precipitation spread over 8 days and higher humidity at 79%. To learn more about what to expect, you can check out Squaw Valley weather in December.
September in Squaw Valley marks a distinct transition, boasting warmer days and significantly less precipitation compared to the earlier summer months. With an inviting average temperature hovering around a comfortable 23°C (74°F), it provides ideal conditions for outdoor enthusiasts while avoiding the extreme heat of July and August. Unlike those peak summer weeks, September enjoys an impressive zero days of rain, allowing for uninterrupted adventures amidst the stunning alpine scenery. The relatively low humidity further enhances the pleasant atmosphere, making it a delightful time to explore before the crispness of autumn sets in. For a deeper dive into what to expect throughout the year, check out the full details of the Squaw Valley Climate.