Last updated: February 24, 2025
September weather in Hayden Lake, United States, showcases a dynamic climate as summer transitions into fall. With maximum temperatures peaking at a toasty 34°C (94°F), the month offers warmth, tempered by an average of 16°C (61°F). However, early fall's chill is evident with a minimum dip to 1°C (34°F). While residents and visitors enjoy the sunshine, the area also experiences some rainfall, accumulating 44 mm (1.7 in) over five days, contributing to 62% humidity that adds a refreshing touch to the crisp air. This blend of temperatures and conditions makes September an invigorating time to experience the natural beauty of Hayden Lake.
As September arrives in Hayden Lake, temperatures begin to shift, marking the transition from the sweltering heat of summer to the cooler days of fall. With minimums averaging 1°C (34°F) and average highs around 16°C (61°F), the month offers a refreshing break from the peak summer warmth, where maximum temperatures can soar up to 34°C (94°F). This transitional month sees a notable decrease from the summer extremes, providing a perfect backdrop for outdoor activities amidst the changing foliage. As daylight wanes, the crisp mornings hint at the approaching chill of October, making September a delightful yet fleeting month in Hayden Lake's annual climate cycle.
September in Hayden Lake marks a noticeable shift in precipitation patterns as the month receives 44 mm (1.7 in) of rain over 5 days. This is a modest increase from the sparse summer months, with July and August recording only 6 mm and 14 mm, respectively. As autumn begins to take hold, the arrival of September's rainfall hints at the onset of wetter conditions, a trend that will intensify with the approaching fall months. October typically brings 85 mm (3.3 in) of rain, doubling September's totals and signaling the transition toward the wetter season of November and December. This gradual escalation serves as a reminder of the changing landscape, where lush colors emerge and the atmosphere cools, paving the way for the winter ahead.
As summer gives way to autumn, September in Hayden Lake witnesses a noticeable decline in humidity, dropping to 62%. This marks a significant shift from the sweltering months, where humidity hovered around 64% in August and remained consistently high from January through April, with levels surpassing 80%. The transition into September signals a refreshing change, as the air becomes crisper and more breathable, paving the way for the vibrant fall scenery. Notably, this trend of decreasing humidity continues into October, where levels rise slightly to 79%, hinting at the upcoming winter months when humidity returns to the higher ranges above 80%. Overall, September’s humidity not only provides relief from the summer heat but also sets the stage for the seasonal transformation ahead.
As summer transitions into autumn, September in Hayden Lake experiences a UV Index of 7, placing it in the high exposure category. This signifies a slight dip from the summer months, where values reached up to 10, but it's still important to exercise caution. During this month, the burn time for unprotected skin is around 25 minutes, making it essential for residents and visitors alike to enjoy the outdoors responsibly. This trend reflects a gradual decrease in UV intensity as the year progresses, with October bringing a more moderate index of 5. To stay informed about UV levels throughout the year, check the detailed reports here: Hayden Lake UV Index.
UV Risk Categories
In September, Hayden Lake basks in 282 hours of sunshine, marking a vibrant transition as summer begins to wane. This warm month showcases a notable decline from July's peak of 411 hours, yet it remains a radiant time, significantly brighter than the chillier months ahead. The sunlit hours in September, while reduced, still reflect a rich tapestry of summer's last hurrah, inviting locals and visitors alike to indulge in outdoor activities against a backdrop of changing foliage. As the days grow shorter, the contrast becomes evident with October's 224 hours looming, reminding us that the warmth of summer is giving way to autumn's embrace.
September in Hayden Lake boasts a 54% chance of sunny weather, making it a favorable time for those seeking pleasant outdoor activities. This month sees a slight dip from the high summer peak of 85% in July, yet it remains significantly sunnier than the earlier months of the year, such as January's 19% and November's 23%. The transition into autumn continues to offer a comfortable balance, with many days exhibiting enough sunshine to enjoy the scenic surroundings. As the summer warmth gives way to cooler temperatures, September stands out as a prime opportunity for sun-seekers before the more overcast months of fall arrive.
In September, Hayden Lake experiences a significant shift in daylight duration, with 12 hours of sunlight. This month serves as a transition from the long, sunlit days of summer—where daylight peaked at 15 hours in June and July—towards the shorter daylight hours of autumn. Notably, September's daylight duration reflects a gradual decline, as it drops from the vibrant 14 hours seen in August. As fall approaches, the trend becomes evident; daylight begins to fade, foreshadowing the 10 hours in October and 9 hours in November. This ebb and flow of light not only marks the changing seasons but also invites residents and visitors alike to bask in the last gleams of summer before the cozy, shorter days of fall set in.
As September rolls into Hayden Lake, the average wind speed settles at a gentle 2.3 m/s (5 mph), marking a slight decrease from the summer months. This transition reflects a trend toward calmer breezes, echoing the serene atmosphere of early autumn. Throughout the year, wind speeds generally hover around the 5 to 6 mph range, with February peaking at 2.8 m/s (6 mph). The gradual easing of wind in September invites a sense of tranquility, perfect for enjoying the stunning fall foliage and the calming waters of the lake. As the season changes, residents and visitors alike can savor the subtle shifts in both temperature and wind, embracing the peaceful charm that Hayden Lake offers this time of year.
The weather in Hayden Lake 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 Hayden Lake and find detailed weather information for every month.
September and January present stark contrasts in weather conditions. September enjoys a warm range of temperatures, with a minimum of 1°C (34°F) and an average of 16°C (61°F), peaking at a balmy 34°C (94°F). In contrast, January is much colder, with a low of -20°C (-4°F) and an average temperature of -1°C (30°F), only reaching a maximum of 9°C (48°F). Precipitation also varies significantly, with September experiencing 44 mm (1.7 in) over just 5 days, while January sees a much wetter month with 100 mm (4.0 in) across 14 days. Humidity levels are notably higher in January at 89%, compared to September's 62%. For more information about the weather in January, check out Hayden Lake weather in January.
September and February present distinctly different weather experiences. In September, temperatures range from a mild minimum of 1°C (34°F) to a warm maximum of 34°C (94°F), with an average of 16°C (61°F) and relatively low precipitation of 44 mm (1.7 in) over just 5 days. The humidity sits at a comfortable 62%. In contrast, February is much colder, with temperatures dipping as low as -23°C (-9°F) and averaging -2°C (29°F), while peaking at 15°C (59°F). This month sees significantly higher precipitation at 103 mm (4.1 in), spread over 16 days, accompanied by higher humidity levels of 89%. For a closer look at the weather specifics in February, check out Hayden Lake weather in February.
When comparing the weather in September and March, there is a stark contrast in temperatures and conditions. September boasts a wide temperature range, with minimums of 1°C (34°F) and maximums reaching up to 34°C (94°F), accompanied by an average of 16°C (61°F). The month experiences moderate precipitation of 44 mm (1.7 in) over just 5 days, alongside a comfortable humidity of 62%. In contrast, March presents a colder climate, with minimum temperatures plummeting to -17°C (2°F) and an average of only 3°C (38°F). This month is wetter, seeing 82 mm (3.2 in) of precipitation spread across 15 days, and higher humidity at 87%. For a more detailed view of the weather in March, visit Hayden Lake weather in March.
When comparing the weather in September and April, notable differences emerge. September boasts a wider temperature range, with minimums reaching 1°C (34°F), averages around 16°C (61°F), and maximums soaring to 34°C (94°F). The month experiences relatively low precipitation, totaling 44 mm (1.7 in) over just 5 days, and a humidity level of 62%. In contrast, April presents a cooler climate, with minimums dropping to -5°C (24°F) and an average temperature of only 7°C (45°F). The maximum temperature in April peaks at a milder 28°C (82°F). However, it sees significantly more rainfall, accumulating 80 mm (3.2 in) across 13 days, accompanied by higher humidity levels at 84%. For those interested in a deeper dive into April's weather specifics, check out Hayden Lake weather in April.
When comparing the weather in September and May, there are notable differences in temperature and precipitation. September typically offers a wider temperature range, with minimums reaching 1°C (34°F) and maximums soaring up to 34°C (94°F), while May has a slightly cooler range, with minimums dropping to -1°C (31°F) and maximums peaking at 31°C (88°F). Precipitation levels also vary, with May receiving more rainfall at 63 mm (2.5 in) over 10 days compared to September’s 44 mm (1.7 in) spread across just 5 days. Moreover, May has higher humidity at 77%, compared to September's 62%, indicating that May tends to feel more humid and damp. For a detailed look at May weather conditions, you can check out this link: Hayden Lake weather in May.
When comparing the weather in September and June, we can see distinct differences in temperature and humidity. September experiences a broader temperature range, with minimums dropping to as low as 1°C (34°F) and maximums reaching up to 34°C (94°F), averaging around 16°C (61°F). In contrast, June boasts slightly warmer temperatures, with minimums at 5°C (41°F) and maximums soaring to 42°C (109°F), while averaging 17°C (63°F). Precipitation is also notable, with September receiving 44 mm (1.7 in) over about 5 days, compared to June's 34 mm (1.3 in) over 7 days. Additionally, humidity levels are higher in June at 78%, compared to September's 62%. For more detailed insights on June weather specifically, you can visit Hayden Lake weather in June.
In comparing the weather between September and July, September presents a broader temperature range, with minimums dipping to 1°C (34°F) and maximums reaching up to 34°C (94°F). The average temperature in September is 16°C (61°F), which makes it noticeably cooler than July’s warmer conditions, where the minimum temperature is 8°C (46°F) and averages at a hotter 22°C (72°F), peaking at a scorching 42°C (107°F). Additionally, September sees more precipitation, with 44 mm (1.7 in) over 5 days, compared to July, which experiences only 6 mm (0.3 in) across just 1 day. Despite the lower precipitation in July, it carries a higher humidity level at 77% versus September's 62%. For more details, you can check Hayden Lake weather in July.
September weather shows a notable shift compared to August, with a wider temperature range where the minimum dips to 1°C (34°F) and the maximum can reach 34°C (94°F). In contrast, August features higher average temperatures, with a minimum of 8°C (47°F) and a maximum soaring to 40°C (105°F). Additionally, September experiences slightly more precipitation, totaling 44 mm (1.7 in) over 5 days, compared to August's 14 mm (0.6 in) over just 3 days. Humidity levels are relatively consistent, measuring 62% in September and 64% in August. For a deeper look at the conditions during August, check out Hayden Lake weather in August.
In comparing the weather patterns of September and October, we see a notable shift in temperature and precipitation. September features a broad temperature range with minimums at 1°C (34°F) and maximums peaking at 34°C (94°F), contributing to its average of 16°C (61°F). In contrast, October experiences significantly cooler temperatures, with lows dropping to -9°C (16°F) and an average of 8°C (47°F). This month also sees a marked increase in rainfall, accumulating to 85 mm (3.3 in) over 11 days, compared to September’s 44 mm (1.7 in) over just 5 days. Additionally, October's humidity is higher at 79%, compared to September's 62%. For more specific insights, you can explore Hayden Lake weather in October.
Comparing the weather in September and November reveals a significant transition in temperature and conditions. September experiences much warmer temperatures, with averages around 16°C (61°F) and highs peaking at 34°C (94°F). In contrast, November brings cooler weather, with average temperatures dropping to just 3°C (38°F) and lows reaching as low as -9°C (16°F). Precipitation also increases notably in November, totaling 115 mm (4.5 in) over 16 days, compared to September's 44 mm (1.7 in) over just 5 days. Additionally, humidity rises in November to a notable 87%, compared to 62% in September, making November significantly more damp and chilly. For more specific weather details, you can check Hayden Lake weather in November.
In September, the weather is characterized by warm temperatures, with an average of 16°C (61°F) and peaks reaching up to 34°C (94°F), accompanied by relatively low precipitation of 44 mm (1.7 in) over just five days. The humidity sits at a moderate 62%, making for warm and pleasant conditions. In contrast, December brings a stark change, with much colder temperatures averaging around 0°C (32°F) and minimums dropping to -15°C (4°F). The month experiences greater precipitation at 110 mm (4.3 in) across 16 days, and the humidity rises significantly to 90%, creating a damp and chilly atmosphere. For more detailed insights, you can check out Hayden Lake weather in December.
As September unfolds at Hayden Lake, the weather showcases a remarkable transition from the sizzling summer months to a cooler fall ambiance. With average temperatures dipping significantly, residents and visitors alike experience a refreshing shift, highlighted by the cooler nights that can plummet to a brisk 1°C. While September does see some rain, averaging 44 mm over just five days, the moderate humidity of 62% creates a comfortable outdoor atmosphere. This blend of warm days and cooler nights makes September a delightful month, perfect for enjoying the lake’s natural beauty. For more insights into the annual weather patterns, check out Hayden Lake Climate.