Last updated: February 24, 2025
September in Salt Lake City offers a delightful mix of warm days and cool nights, with maximum temperatures reaching a striking 36°C (98°F) while averaging around 19°C (67°F). The evenings bring refreshing relief as temperatures can drop to a brisk 2°C (35°F). Despite a total precipitation of 34 mm (1.3 in) spread over just 4 days, the month enjoys relatively low humidity levels of 46%, creating a comfortable atmosphere perfect for outdoor activities and exploring the scenic beauty of the city. Embrace the vibrant transition of seasons that September brings in this captivating urban oasis.
As September rolls into Salt Lake City, the summer heat starts to mellow, bringing a refreshing transition to autumn. Average temperatures settle at a comfortable 19°C (67°F), with highs peaking around 36°C (98°F), making it one of the last months to enjoy the warmth before the cooler days of fall take hold. The evenings cool off, dipping to a minimum of 2°C (35°F), offering a delightful contrast to the hotter days. This month reflects a trend of decreasing temperatures from the scorching summer, signaling a shift not only in weather but in the vibrant hues of the surrounding landscapes as they prepare for the spectacular fall foliage.
In September, Salt Lake City experiences a noticeable shift in precipitation, receiving an average of 34 mm (1.3 in) over the course of four days. This marks a modest increase compared to the drier summer months of June, July, and August, where rainfall was scant, averaging just 15 mm (0.6 in) combined. As the city transitions from the sizzling summer heat to the crispness of fall, September's precipitation serves as a gentle reminder of the changing seasons, offering essential moisture that paves the way for the vibrant colors of autumn foliage. The rainfall patterns of this month reflect a broader trend, where precipitation starts to pick up, hinting at the wetter months ahead.
As September rolls into Salt Lake City, it marks a noticeable shift in humidity levels. After the dry spell of summer, where August sees a striking low of 37%, September experiences a modest increase with humidity rising to 46%. This gradual uptick hints at the transition into the fall season, where moisture begins to return to the air. In comparison to the earlier months, September's humidity is significantly lower than the winter peaks of nearly 91% in January and 92% in February, showcasing the city's distinct seasonal patterns. As autumn approaches, residents can expect the air to feel slightly more humid, but compared to winter, it still maintains a relatively comfortable level.
As September rolls into Salt Lake City, residents can expect a very high UV Index of 9, which indicates a significant risk of harm from unprotected sun exposure. At this time of year, the recommended burn time is 15 minutes, mirroring the conditions of the previous month. The trend observed throughout the summer shows a peak in June with an extreme UV Index of 12, gradually declining but still remaining notably high in September. This pattern emphasizes the importance of sun safety as the days shorten and temperatures begin to cool, yet the UV levels can still pose a risk. For more detailed information, explore the Salt Lake City UV Index.
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As September unfolds in Salt Lake City, residents bask in 313 hours of sun, a delightful transition from the sun-drenched days of July and August, which boast 390 and 360 hours, respectively. This month marks a gentle decline in daylight hours as summer gives way to fall, yet the light remains abundant, providing a warm embrace before the cooler months set in. The trend throughout the year reveals a peak in sunshine during the summer, tapering off gradually as autumn approaches. With 294 hours in April and fluctuating hours through the rest of the year, September stands out as a bridge between vibrant summer days and the crisper embrace of October, offering a picturesque backdrop for outdoor adventures and a final taste of warmth before the winter chill arrives.
As summer transitions into autumn, September in Salt Lake City offers a delightful blend of warm days and increasingly sunny skies, boasting a 77% chance of sunny weather. This marks a slight dip from the 78% experienced in August but remains significantly higher than the earlier months of the year. The trend showcases a gradual increase in sunshine from 42% in January to the peak of summer, underscoring the allure of September as a fantastic time for outdoor activities. With the days still bright and vibrant, it’s an ideal month to soak up the last rays of sun before fall sets in.
As summer fades and autumn approaches, September in Salt Lake City witnesses a gentle decline in daylight hours, offering about 12 hours of sunlight. This marks a transition from the sunniest months of June and July, which bask in 15 and 14 hours of daylight, respectively. Following the vibrant summer, September's shorter days create a cozy ambiance, as the daylight duration continues to taper into October's 11 hours. This gradual reduction not only signals the approach of cooler temperatures but also reflects the rhythmic dance of the seasons, inviting residents to savor the last glimmers of summer while embracing the charm of fall.
As September rolls into Salt Lake City, the breeze remains steady, showcasing an average wind speed of 2.3 m/s, or about 5 mph. This gentle current is consistent with the patterns seen throughout the summer, where wind speeds peak in June at 2.5 m/s before mellowing in the subsequent months. Interestingly, September's winds reflect a continuation of this summer-like calm, while hinting at the seasonal transition ahead, as October is predicted to maintain the same moderate pace. The overall trend suggests a slight dip in windier days approaching winter, with November dropping to 1.8 m/s. As the city prepares for autumn, the September winds offer a pleasant reminder of summer before the colder months set in.
The weather in Salt Lake City 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 Salt Lake City and find detailed weather information for every month.
When comparing the weather in September and January, notable contrasts become evident. September features a wide temperature range, with a minimum of 2°C (35°F), an average of 19°C (67°F), and a maximum reaching up to 36°C (98°F). The month experiences relatively low precipitation of 34 mm (1.3 in) over just 4 days, along with a moderate humidity of 46%. In contrast, January presents a much colder climate, with temperatures plummeting to a minimum of -22°C (-6°F) and averaging around -1°C (30°F), peaking at only 12°C (54°F). This month sees higher precipitation levels at 52 mm (2.0 in) spread over 10 days, accompanied by significantly higher humidity at 91%. For a more detailed understanding of January's weather, you can refer to Salt Lake City weather in January.
September and February present striking contrasts in weather. In September, temperatures range from a mild 2°C (35°F) at night to a hot 36°C (98°F) during the day, with an average temperature of 19°C (67°F). The month brings relatively low humidity at 46%, and only four days of precipitation totaling 34 mm (1.3 in). In contrast, February is much colder, with temperatures dipping as low as -20°C (-4°F) and averaging just 1°C (34°F). The maximum temperature in February reaches a still-chilly 18°C (65°F). Additionally, February experiences higher humidity at 92% and sees more frequent precipitation, with 60 mm (2.4 in) spread across ten days. For a more detailed look at the February climate, check out Salt Lake City weather in February.
When comparing the weather in September and March, there are notable differences in temperature and precipitation patterns. September boasts a warm average temperature of 19°C (67°F) with extremes ranging from a cool 2°C (35°F) to a scorching 36°C (98°F). In contrast, March presents a much chillier climate, with an average temperature of just 6°C (43°F) and lows that can drop to -18°C (0°F). Additionally, March is marked by higher humidity at 84% and more frequent precipitation, receiving 61 mm (2.4 in) over about 10 days compared to September's 34 mm (1.3 in) across just 4 days. For more detailed insights, you can check Salt Lake City weather in March.
September and April present distinct weather patterns, reflecting the transition between summer and winter. In September, temperatures can soar as high as 36°C (98°F), with an average of 19°C (67°F), while April showcases cooler temperatures with a maximum of 28°C (82°F) and an average of 10°C (50°F). Precipitation is more common in April, with 65 mm (2.6 in) over about 10 days, compared to September's lighter rainfall of 34 mm (1.3 in) across only 4 days. Furthermore, humidity levels in April are notably higher at 74%, contrasting with September's lower levels of 46%. For a more detailed look at weather specifics in April, visit Salt Lake City weather in April.
September and May exhibit distinct weather patterns, each with its own character. In September, temperatures can range from a cool 2°C (35°F) to a warm high of 36°C (98°F), with an average of 19°C (67°F). The month experiences relatively low precipitation at 34 mm (1.3 in) over just four days, contributing to a humidity level of 46%. In contrast, May sees a slightly wider temperature range, with minimums dipping to -1°C (31°F) and maximums reaching up to 35°C (95°F). Precipitation is higher in May, totaling 50 mm (2.0 in) spread over nine days, and the humidity rises to 62%. For a more detailed look at May's weather, you can explore Salt Lake City weather in May. Overall, May tends to be wetter and more humid, while September shines with warmer temperatures and drier conditions.
In comparing the weather of September and June, September tends to be slightly cooler overall, with average temperatures around 19°C (67°F), while June averages at 22°C (72°F). The maximum temperatures in both months can be quite high, peaking at 36°C (98°F) in September and reaching up to 39°C (103°F) in June. Precipitation is more frequent in September, with 34 mm (1.3 in) falling over about 4 days, compared to June’s lighter 15 mm (0.6 in) over just 2 days. Humidity levels are also higher in June at 56%, compared to September’s drier 46%. For more specific details, check out Salt Lake City weather in June.
In comparing the weather of September and July, notable differences emerge. September experiences a wider temperature range, with minimums dropping to 2°C (35°F) and maximums reaching up to 36°C (98°F), while the average temperature hovers around 19°C (67°F). In contrast, July's temperatures are consistently warmer, with minimums at 10°C (50°F) and maximums peaking at 39°C (102°F), yielding an average of 27°C (81°F). Precipitation levels also vary; September sees slightly more rainfall at 34 mm (1.3 in) over 4 days, compared to July’s 10 mm (0.4 in) across 3 days. Humidity levels are relatively similar, with September at 46% and July slightly lower at 44%. For more specific insights, you can check Salt Lake City weather in July.
In comparing the weather of September and August, September experiences a notable drop in average temperature, with a minimum of 2°C (35°F) and an average of 19°C (67°F), compared to August's warmer minimum of 10°C (51°F) and average of 25°C (78°F). While August tends to be hotter, reaching a maximum of 39°C (103°F), September's peak temperature is slightly lower and even sees occasional highs of 36°C (98°F). Moreover, September has slightly more precipitation at 34 mm (1.3 in) over 4 days, whereas August records a modest 16 mm (0.6 in) over just 2 days. Humidity is also higher in September, sitting at 46%, compared to August's 37%. For more details, you can check Salt Lake City weather in August.
September and October present a striking contrast in weather patterns. In September, temperatures range from a mild 2°C (35°F) at night to a warm 36°C (98°F) during the day, averaging around 19°C (67°F). The month sees relatively low precipitation, with just 34 mm (1.3 in) over 4 days and a humidity level of 46%.
In contrast, October brings cooler conditions, with minimum temperatures dropping to -14°C (7°F) and average temperatures settling at 10°C (50°F). The maximum temperature is also lower, peaking at 28°C (83°F). Precipitation increases slightly to 41 mm (1.6 in) and occurs over 6 days, while humidity rises to 67%. This shift marks the transition from late summer warmth to the chill of autumn. For more details, you can check Salt Lake City weather in October.
In September, temperatures in Salt Lake City range from a minimum of 2°C (35°F) to a maximum of 36°C (98°F), with an average of 19°C (67°F). The month features relatively low humidity at 46% and only about 34 mm (1.3 in) of precipitation over four days. In contrast, November sees much cooler temperatures, with a minimum of -12°C (10°F) and a maximum of 22°C (72°F), alongside an average temperature of 5°C (41°F). The month is also characterized by significantly higher humidity levels at 84% and similar precipitation, totaling 34 mm (1.3 in) but spread over six days. For more specific details, you can check Salt Lake City weather in November.
September weather is characterized by warmer temperatures, with an average of 19°C (67°F), and occasional highs reaching up to 36°C (98°F). The month experiences relatively low precipitation, averaging only 34 mm (1.3 in) over about 4 days, and a moderate humidity level of 46%. In contrast, December brings much cooler conditions, with average temperatures dropping to -1°C (30°F) and lows plunging to -13°C (8°F). This month sees increased precipitation at 47 mm (1.8 in), spread over 10 days, and significantly higher humidity at 88%. For more detailed information about December weather, you can visit Salt Lake City weather in December.
As September rolls into Salt Lake City, the weather begins to shift, offering a welcome respite from the sweltering summer heat. With temperatures averaging around a pleasant 19°C (67°F), it’s an ideal time for outdoor activities, unlike the peak summer months. Humidity drops to a comfortable 46%, and while the city might see a few rainy days, the total precipitation remains relatively low. This month not only signals the transition into fall but also a slight chill in the evenings, making it a unique time to enjoy the changing scenery. For a deeper dive into how September compares to the rest of the year, check out Salt Lake City Climate.