Last updated: February 24, 2025
September in Stateline, United States, is characterized by a diverse climate, showcasing a maximum temperature of 32°C (90°F) and an average of 15°C (60°F). The month can also dip to a refreshing minimum of -3°C (27°F), offering a unique blend of warmth and coolness. Rainfall is modest, with 16 mm (0.6 in) of precipitation over just 4 days, contributing to a comfortable humidity level of 44%. This transitional month invites both outdoor enthusiasts and those seeking to embrace the shift from summer to autumn.
In September, temperatures in Stateline, United States begin to transition from the warmth of summer into the crispness of fall. With a minimum temperature of -3°C (27°F) and an average of 15°C (60°F), the month marks a notable shift as evenings grow cooler while daytime highs can still reach a comfortable 32°C (90°F). This evolution in temperature reflects a gradual cooling trend following the peak summer months, showcasing the changing seasons. As the landscape begins to transform, the vibrancy of early autumn can be felt in the air—making it a picturesque time for outdoor activities in this delightful corner of the country.
In September, Stateline experiences a modest precipitation level of 16 mm (0.6 in), marking a slight increase compared to the dry summer months, where rainfall dipped to record lows. With only four days of measurable rainfall, this month continues the trend of diminished precipitation that began in late spring. The consistency of dry conditions in June, July, and August—collectively receiving just 39 mm (1.5 in) over 12 days—sets the stage for September's limited showers. As summer gives way to early autumn, the landscape remains parched, but the light rain hints at the wetter months to come, as October and November follow with significantly increased precipitation averages.
In Stateline, United States, September marks a transition in humidity, with levels hovering around 44%. This signifies a notable uptick from the summer months, where August dipped to a mere 36%. As the region moves from the dry heat of July and August back toward the more humid conditions seen earlier in the year, September serves as a gentle reminder of the shifting seasons. The gradual rise in humidity continues into October, reaching 65%, further echoing the trend of higher moisture levels prevalent in the fall and winter months. Overall, while September brings a slight reprieve from the summer's aridity, it paves the way for the wetter conditions that define the latter part of the year.
In September, Stateline experiences a UV Index of 10, classified as very high, which suggests a notable drop from the summer peak but still poses significant risks for prolonged sun exposure. As the days gradually shorten and temperatures cool, burn time increases to 15 minutes for unprotected skin, emphasizing the need for protective measures during outdoor activities. This trend illustrates how early autumn still demands caution, especially following the extreme UV levels witnessed from May through August. As you plan your September outings, remember to stay informed and protect yourself from the sun’s rays—check out the detailed forecast at Stateline UV Index.
UV Risk Categories
As September unfolds in Stateline, United States, residents enjoy 322 hours of sunshine, marking a delightful transition towards the crispness of autumn. This uptick in sunlight continues the trend established over the summer months, showcasing a peak in July with 397 hours before gradually tapering down. After basking in the brightness of June and July, September retains a substantial amount of sunshine, though it signals the onset of shorter days ahead, as evidenced by an eventual decline to 286 hours in October. Overall, September serves as a vibrant bridge between the sun-soaked days of summer and the cooler, dimmer months that follow, inviting locals and visitors alike to savor the lingering warmth of the season.
As September rolls in, Stateline, United States, experiences a delightful transition into autumn, accompanied by an 83% chance of sunny weather. This marks a slight dip from the summer peak in August, which boasts a remarkable 91% likelihood of sunny days. However, the sunshine amount remains robust, reflecting the tail end of summer's warmth. Observing the trend throughout the year, it's evident that the chances of sunny weather steadily increase from a chilly 34% in January to a glorious peak in August. As September unfolds, residents can still enjoy ample sunny days before the likelihood falls again in October, making it one of the last chances to soak in the sun before the cooler months set in.
As September arrives in Stateline, United States, the daylight begins to wane, offering 12 hours of sunlight—a gradual decline from the summer's peak. This transition marks a shift from the 14 hours enjoyed during the height of summer, as both July and August basked in ample light. Interestingly, the month of September serves as a bridge between the long days of summer and the shorter durations that follow in October, where daylight diminishes to 11 hours. With autumn on the horizon, the lengthening shadows and cooler evenings remind us that nature’s cycle is shifting, preparing the landscape for the crispness of fall.
In Stateline, United States, the September winds offer a gentle embrace, with an average speed of 2.0 m/s (5 mph). This month remains consistent with the summer's light breezes, mirroring the calmness of August and hinting at the transition to fall. While January to April see slight variations, generally around 2.1 m/s, it's interesting to note the dip in July and November, where winds drop to 1.9 m/s and 1.8 m/s respectively. As September rolls in, the winds start to pick up slightly again before peaking in December at 2.4 m/s. Overall, September in Stateline exemplifies a month of mild winds, serving as a serene prelude to the brisk changes autumn brings.
The weather in Stateline 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 Stateline and find detailed weather information for every month.
September and January exhibit strikingly contrasting weather patterns. In September, temperatures can range from a chilly -3°C (27°F) to a warm 32°C (90°F), with an average of around 15°C (60°F). The month experiences relatively low precipitation, totaling just 16 mm (0.6 in) over approximately 4 days, and humidity at a moderate 44%. In contrast, January is much colder, with temperatures dipping as low as -12°C (11°F) and peaking at a mere 12°C (54°F), averaging around 0°C (32°F). This winter month is significantly wetter, accumulating up to 177 mm (7.0 in) of precipitation across about 10 days, and a much higher humidity level of 84%. The pronounced differences highlight the distinct seasonal shifts between these two months. For more details, check out Stateline weather in January.
September and February present a striking contrast in weather conditions. September enjoys milder temperatures with a minimum of -3°C (27°F), an average of 15°C (60°F), and a maximum of 32°C (90°F), coupled with low humidity at 44% and minimal precipitation of 16 mm over just four days. In contrast, February experiences significantly colder weather, with temperatures dropping to a minimum of -16°C (3°F), an average of -1°C (31°F), and a maximum of 16°C (61°F). February is also much wetter, receiving 180 mm (7.1 in) of precipitation over 11 days and featuring high humidity at 84%. This seasonal shift showcases the dramatic changes that can occur within just a few months, emphasizing the stark contrasts between late summer and mid-winter. For more details, check Stateline weather in February.
In September, temperatures are generally warmer, with a minimum of -3°C (27°F) and an average of 15°C (60°F), peaking at a comfortable 32°C (90°F). The month experiences relatively low precipitation at 16 mm (0.6 in) over just four days and has a humidity level of 44%. In contrast, March is much cooler, with temperatures ranging from a minimum of -12°C (10°F) to a maximum of 16°C (61°F), and an average temperature of only 1°C (34°F). The precipitation significantly increases to 158 mm (6.2 in), spread over 14 days, and humidity rises to a damp 83%. For more detailed weather patterns, check Stateline weather in March.
In September, the weather tends to be significantly warmer with average temperatures around 15°C (60°F), peaking at a maximum of 32°C (90°F) and experiencing only 16 mm (0.6 in) of precipitation over about 4 days. In contrast, April is much cooler and wetter, with average temperatures hovering around 4°C (40°F) and maximums reaching only 21°C (70°F). This month receives a notable 76 mm (3.0 in) of rainfall spread over approximately 8 days, alongside higher humidity levels of 81%. For more detailed information on April weather, you can visit Stateline weather in April.
In comparing the weather between September and May, several notable differences emerge. September tends to be milder overall, with average temperatures reaching a comfortable 15°C (60°F) and maximums soaring up to 32°C (90°F). In contrast, May has cooler temperatures, with an average of just 9°C (48°F) and a maximum of 27°C (81°F). Additionally, September experiences significantly less precipitation, measuring only 16 mm (0.6 in) over about four days, while May is much wetter, with 65 mm (2.6 in) of rainfall spread over ten days. The humidity also plays a role in this comparison: September has a lower humidity level at 44%, compared to a much higher 74% in May, contributing to a markedly different feel between the two months. For more detailed insights on May weather, visit Stateline weather in May.
When comparing the weather in September and June, both months exhibit similar average temperatures, hovering around 15°C (60°F). However, September tends to have a slightly wider range of temperatures, with a minimum of -3°C (27°F) and a maximum reaching 32°C (90°F), while June's temperatures range from -2°C (30°F) to a maximum of 31°C (88°F). In terms of precipitation, both months are quite comparable, receiving approximately 14-16 mm (0.6 in) over four days. A notable difference lies in humidity levels; September has a lower humidity of 44%, contrasted with June's higher level of 64%, making June feel more muggy. For further details on the weather patterns, you can check Stateline weather in June.
In comparing the weather of September to July, we see notable differences in temperature and overall feel. September experiences a more pronounced range in temperatures, with a minimum of -3°C (27°F) and a maximum reaching 32°C (90°F), while averaging around 15°C (60°F). July, on the other hand, maintains a milder minimum of 5°C (42°F) and a slightly higher maximum of 33°C (92°F), with an average temperature of 20°C (68°F). Both months see similar low levels of precipitation—16 mm (0.6 in) for September and 13 mm (0.5 in) for July—occurring over four days, and the humidity levels remain consistent at 44%. For more details on July weather, you can check out Stateline weather in July.
In September, temperatures experience a noticeable drop compared to August, with a minimum of -3°C (27°F) and an average of 15°C (60°F), while August's temperatures range between a minimum of 5°C (42°F) and an average of 19°C (67°F). The maximum temperature in September reaches 32°C (90°F), slightly lower than August's peak of 33°C (91°F). Precipitation levels are comparable, with September receiving 16 mm (0.6 in) over four days, compared to August's 12 mm (0.5 in) over the same number of days. Interestingly, September has a higher humidity level at 44%, compared to August's 36%. For more detailed weather information, visit Stateline weather in August.
In comparing September and October weather, we see a notable transition in temperature and humidity. September's average temperature is a mild 15°C (60°F), with highs reaching up to 32°C (90°F) and lows at 3°C (27°F). It generally has lower humidity at 44%, along with minimal rainfall of 16 mm over four days. In contrast, October experiences a considerable drop in average temperature to 9°C (48°F), with a maximum of 27°C (80°F) and colder minimum temperatures sinking to -7°C (20°F). This month also brings significantly more precipitation, totaling 47 mm (1.9 in) over just three days, and a rise in humidity to 65%. For more detailed insights into October weather, you can visit Stateline weather in October.
September and November present a stark contrast in weather conditions. In September, temperatures range widely from a chilly minimum of -3°C (27°F) to a warm maximum of 32°C (90°F), with an average temperature of 15°C (60°F). The month sees relatively low precipitation, totaling just 16 mm (0.6 in) over 4 days, and humidity levels are moderate at 44%. In contrast, November experiences much colder temperatures, with a minimum of -10°C (14°F) and a more consistent maximum of 21°C (71°F), leading to an average temperature of only 4°C (39°F). This month is also notably wetter, with precipitation reaching 83 mm (3.3 in) spread over 7 days and significantly higher humidity at 84%. For more detailed weather insights, check Stateline weather in November.
In September, the weather is significantly warmer and drier, with temperatures ranging from a brisk minimum of -3°C (27°F) to a pleasant maximum of 32°C (90°F) and average humidity at a comfortable 44%. The month experiences minimal precipitation, totaling only 16 mm (0.6 in) over about 4 days. In contrast, December ushers in much colder temperatures, with a low of -12°C (11°F), an average of -1°C (31°F), and a maximum reaching only 14°C (58°F). The increase in rainfall is notable, with 139 mm (5.5 in) spread over 10 days and the humidity rising to a substantial 83%. For more details on the weather patterns during this winter month, you can visit Stateline weather in December.
As September unfolds in Stateline, it brings a delightful transition from the summer heat to more moderate temperatures, showcasing an average warmth that encourages outdoor adventures. While the month can occasionally reach sweltering highs, it also dips into crisp mornings, marking a refreshing change. Unlike the precipitation-heavy months that precede it, September offers relatively low rain with just a few days of showers, allowing for plenty of sunshine under a pleasantly low humidity of 44%. This unique blend of mild temperatures and manageable weather sets September apart as a perfect time for both residents and visitors to enjoy the beauty of the season. For more details on what to expect throughout the year, visit Stateline Climate.