September Weather in Lincoln, United States

Last updated: February 24, 2025

In September, the weather in Lincoln, United States offers a dynamic blend of temperatures, ranging from a maximum of 29°C (85°F) to a minimum of -4°C (25°F), with an average temperature settling around 15°C (59°F). This transitional month experiences varied precipitation, totaling 71 mm (2.8 in) over approximately 10 days, contributing to a humidity level of 71% that envelops the city. As summer give way to autumn, residents and visitors alike can expect refreshing breezes and the beauty of changing foliage amidst these comfortable temperatures, making September a unique time to explore Lincoln's outdoor charm.

September Temperature in Lincoln

As September rolls into Lincoln, United States, the temperatures start to show a gentle transition from the warmth of summer to the crispness of autumn. With minimums dipping to -4°C (25°F) and average temperatures hovering around 15°C (59°F), this month offers a pleasant respite from the sweltering heat of the previous months. Daytime highs reach a comfortable 29°C (85°F), allowing for ideal outdoor activities amidst the burgeoning fall foliage. This gradual cooldown marks a significant shift, as the city prepares to embrace the enchanting chill of autumn, making September a delightful blend of lingering warmth and hints of the cooler days to come.

September Weather in Lincoln: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lincoln, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec182128405363686659473223
Data source: Temperature data for Lincoln generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Lincoln

In September, Lincoln experiences a transition as summer fades into autumn, bringing a moderate average precipitation of 71 mm (2.8 in) over approximately 10 days of measurable rain. This amount is notably lower than the preceding months, such as July, which boasts the highest rainfall at 135 mm (5.3 in), and even August's 99 mm (3.9 in). As the weather shifts, September's rainfall hints at the approaching wetter fall months, paving the way for October's expected surge of 143 mm (5.6 in). The declining trend in precipitation days reflects the gradual change in climate, as Lincoln prepares for the crispness of fall while still enjoying occasional showers.

September Precipitation Trends in Lincoln

The chart displays monthly precipitation patterns in Lincoln, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec858675129981051359971143119113
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lincoln

September in Lincoln, United States, marks a subtle transition in humidity levels as summer begins to give way to autumn. With humidity at 71%, it represents a slight uptick from the 66% recorded in August, signaling the return of a bit more moisture in the air. This increase can be seen as a part of a gradual trend that peaks again in the fall months, particularly in October when humidity rises to 78%. Overall, from the dryness of July and August, September offers a refreshing shift, hinting at the lush, cooling months to come, while still remaining comparatively lower than the heavy humidity experienced at the start of the year.

September Average Humidity in Lincoln

This chart illustrates the average monthly humidity levels in Lincoln, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%82%80%72%72%67%66%71%79%84%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lincoln

In September, Lincoln experiences a high UV Index of 7, indicating a shift from the intense summer sun, yet still necessitating caution during outdoor activities. With a recommended burn time of 25 minutes, it's essential to protect your skin, particularly compared to the previous months, where exposure levels reached their peak with an Index of 10 in June. As autumn approaches, the UV levels begin to subside; however, compared to the earlier part of the year, September remains a time when sun protection is still crucial. Keep an eye on the forecast and plan accordingly to enjoy the beautiful early fall days. For more information, check out the Lincoln UV Index.

Maximum UV Index Levels in Lincoln for September

The chart shows the monthly maximum UV Index (UVI) for Lincoln in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3468910997532
Data source: Lincoln September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Lincoln

As summer gradually waves goodbye, September in Lincoln ushers in a delightful transition marked by 285 hours of sunshine. This figure, while lower than the sun-drenched months of July and August, still emphasizes the enduring warmth of early autumn. Following a trend of increasing sunshine hours throughout the summer, September maintains a robust amount of daylight, allowing residents to savor the lingering rays before cooler months arrive. With the days gradually shortening, the sunshine in September invites outdoor activities and harvest celebrations, reinforcing Lincoln's reputation as a vibrant and sunny locale as it prepares for the crimsons and golds of fall.

Monthly Sunshine Duration in Lincoln: September Highlighted

The September sunshine duration represents the total number of hours Lincoln experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec126h165h242h218h261h316h321h328h285h194h169h155h
Data source: Lincoln September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lincoln During September

In Lincoln, the likelihood of sunny weather in September holds steady at 37%, aligning with the sunnier tendencies observed during the spring. This moment marks a noticeable improvement from the summer months, particularly July, which dips to just 22% sunshine. Interestingly, the month transitions from the slightly less sunny August, making it a favorable time for outdoor activities. As the year progresses toward autumn, September stands out as a noteworthy period for those seeking clearer skies, bridging the gap before the uptick in sun chances seen again in November, which boasts a 46% chance. Overall, September’s weather reflects a balanced transition, offering a lovely balance of sun and the charm of early fall.

Percentage of Sunny Days in September in Lincoln

The chart illustrates the percentage of sunny days in Lincoln throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Lincoln experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%26%47%31%32%37%22%29%37%29%46%26%
Data source: Lincoln September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lincoln in September

As September dawns in Lincoln, United States, the daylight hours begin to wane, offering a gentle transition from the vibrant summer months. With 12 hours of daylight, the city experiences a noticeable decline from the peak brightness of 15 hours seen in June and July. This gradual decrease sets the stage for the approaching autumn, following the peak of summer's bounty. August's 13-hour days make way for the shorter intervals of October, where daylight slips back to 10 hours, echoing the seasonal rhythm. While the warmer months bask in extended daylight, September serves as a bridge, inviting a slower pace as nature prepares for the transformation ahead.

Average Daylight Hours in Lincoln for September

The chart illustrates the variation in daylight duration in Lincoln throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 19m10h 29m11h 57m13h 28m14h 45m15h 23m15h 2m13h 54m12h 27m10h 56m9h 37m8h 56m
Data source: Lincoln daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Lincoln

As September rolls in, Lincoln's average wind speed reaches a gentle 2.4 m/s (5 mph), marking a subtle uptick from the calm of summer months. This slight increase follows a noticeable trend where wind speeds generally decline through the hotter summer, with July and August dipping to their lowest, around 2.0 m/s (4 mph) and 1.9 m/s (4 mph), respectively. As autumn approaches, the wind begins to pick up again, hinting at the changing seasons ahead. This serene early fall calm contrasts with the lively breezes that come later in the year, making September a beautifully transitional month in Lincoln, where breezes brush gently against the lingering warmth of summer.

Average September Wind Speed in Lincoln

The chart displays monthly wind speed patterns in Lincoln, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.83.42.92.52.52.01.92.4 m/s2.22.62.8
Data source: Lincoln September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Lincoln Compares to Other Months

The weather in Lincoln 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 Lincoln and find detailed weather information for every month.

When comparing the weather in September and January, a stark contrast emerges. September experiences milder temperatures, ranging from a chilly minimum of -4°C (25°F) to a comfortable maximum of 29°C (85°F), with an average of 15°C (59°F) and less humidity at 71%. It also sees a total precipitation of 71 mm (2.8 in) over approximately 10 days.

In contrast, January brings much colder conditions, with temperatures plummeting to a minimum of -29°C (-20°F) and only peaking at 12°C (54°F), resulting in a frigid average of -8°C (18°F). The month is characterized by higher humidity at 86% and slightly increased precipitation of 85 mm (3.4 in) over about 11 days. For more detailed insights into the winter weather, you can visit Lincoln weather in January.

September and February present stark contrasts in weather patterns. September boasts a range of temperatures with a minimum of -4°C (25°F) and a comfortable average of 15°C (59°F), peaking at a warm 29°C (85°F). In contrast, February experiences much colder conditions, with temperatures dipping to a minimum of -26°C (-14°F) and averaging a chilling -6°C (21°F), while the maximum only reaches 16°C (62°F). Additionally, September has 71 mm (2.8 in) of precipitation over approximately 10 days, while February sees more precipitation at 86 mm (3.4 in) over 13 days, along with a higher humidity level of 84%. For more details on February weather, check out Lincoln weather in February.

In September, the weather is generally mild with average temperatures ranging from a chilly 4°C (25°F) at night to a warm 29°C (85°F) during the day. The month experiences about 71 mm (2.8 in) of precipitation over 10 days, accompanied by a humidity level of 71%. In contrast, March presents a much colder climate, with nighttime temperatures dipping as low as -21°C (-6°F) and daytime highs reaching only up to 18°C (64°F). The precipitation in March is slightly higher at 75 mm (2.9 in), occurring over the same number of days, but the humidity is notably higher at 82%. For more details on the weather in March, check out Lincoln weather in March.

September and April present contrasting weather patterns. In September, temperatures range from a minimum of -4°C (25°F) to a comfortable average of 15°C (59°F), peaking at 29°C (85°F). Precipitation is moderate at 71 mm (2.8 in) spread over about 10 days, with humidity averaging 71%. In stark contrast, April experiences a colder climate with temperatures dropping as low as -12°C (11°F) and an average of 5°C (41°F), reaching a maximum of 24°C (76°F). This month sees significantly higher rainfall, totaling 129 mm (5.1 in) over approximately 15 days, and higher humidity at 80%. For more detailed information on the weather during this time, you can check Lincoln weather in April.

In comparing the weather of September and May, we see distinct differences in temperature and precipitation. September features a broader temperature range with a minimum of -4°C (25°F), an average of 15°C (59°F), and a maximum of 29°C (85°F). In contrast, May has slightly milder temperatures, ranging from a minimum of -2°C (28°F) to a maximum of 31°C (88°F), with an average of 12°C (53°F).

Regarding precipitation, May receives more rain, totaling 98 mm (3.9 in) across 14 days, compared to September's 71 mm (2.8 in) over 10 days. Humidity levels are quite similar, with September at 71% and May slightly higher at 72%. For a deeper look into May's weather patterns, you can explore Lincoln weather in May.

In comparing the weather of September and June, we see notable differences in temperature and precipitation patterns. September typically experiences a wider temperature range, with minimum temperatures dropping to -4°C (25°F) and maximums reaching up to 29°C (85°F), resulting in an average of 15°C (59°F). In contrast, June has milder minimum temperatures of -1°C (31°F) and higher maximums at 32°C (90°F), giving it an average of 17°C (63°F). Precipitation also varies between the two months; September sees around 71 mm (2.8 in) of rain over 10 days, while June is wetter with 105 mm (4.1 in) over 12 days. Humidity levels remain relatively similar, at 71% in September and 72% in June. For more detailed insights, you can visit Lincoln weather in June.

In comparing the weather between September and July, we note significant differences in both temperature and precipitation. September experiences a wider temperature range, with minimums dipping to -4°C (25°F) and maximums reaching 29°C (85°F), giving an average of 15°C (59°F). In contrast, July boasts warmer temperatures, with minimums at 7°C (44°F), an average of 20°C (68°F), and maximums peaking at 33°C (92°F). Additionally, July typically sees more precipitation, totaling 135 mm (5.3 in) over 13 days, compared to September's 71 mm (2.8 in) over 10 days, despite slightly lower humidity levels at 67% versus September's 71%. For more details, check out Lincoln weather in July.

In comparing the weather between September and August, September experiences a notable drop in temperature, with average highs around 29°C (85°F) compared to August's warmer average high of 32°C (89°F). Additionally, September’s minimum temperature is cooler at -4°C (25°F), while August starts at a milder 5°C (41°F). September also sees slightly less precipitation, totaling 71 mm (2.8 in) over 10 days, compared to August's 99 mm (3.9 in) across 13 days. Humidity levels are slightly higher in September at 71%, compared to the 66% in August. For a closer look, you can check Lincoln weather in August.

September typically showcases a more temperate range of weather with average temperatures around 15°C (59°F) and highs reaching up to 29°C (85°F). In contrast, October brings a noticeable drop in temperatures, with averages plummeting to 8°C (47°F) and maximums capped at 24°C (76°F). The shift in precipitation is also significant; September experiences 71 mm (2.8 in) of rain over 10 days, while October sees nearly double that amount at 143 mm (5.6 in) over 14 days, reflecting a more damp and cooler atmosphere. Additionally, humidity levels increase from 71% in September to 78% in October, contributing to the feeling of chill in the air. For more detailed insights, you can check out Lincoln weather in October.

September and November showcase a stark contrast in weather patterns. In September, temperatures range from a minimum of -4°C (25°F) to a maximum of 29°C (85°F), with an average of 15°C (59°F). The month sees about 71 mm (2.8 in) of precipitation over 10 days and maintains a humidity level of 71%. In contrast, November experiences much colder conditions, with temperatures ranging from a minimum of -19°C (-3°F) to a maximum of 21°C (71°F), averaging around 0°C (33°F). Precipitation increases to 119 mm (4.7 in) over 13 days, and humidity rises to 84%. For those interested in more detailed information, check out Lincoln weather in November.

In September, the weather starts to transition from warm summer days to the cooler temperatures of autumn, with a minimum temperature of -4°C (25°F) and an average of 15°C (59°F). The month sees around 71 mm (2.8 inches) of precipitation over approximately 10 days, accompanied by a humidity level of 71%. In contrast, December brings a significant drop in temperatures, reaching a minimum of -27°C (-15°F) and averaging -5°C (23°F), with a maximum of only 14°C (57°F). This colder month sees increased precipitation at 113 mm (4.5 inches), spread over 13 days, and humidity levels rising to 81%. For more specific details about the weather in December, you can visit Lincoln weather in December.

Compare Lincoln's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Lincoln

As September unfolds in Lincoln, it marks a notable shift in weather characteristics compared to the hotter summer months, offering a refreshing transition into autumn. With temperatures averaging around 15°C (59°F), the days bring a comfortable warmth, accompanied by occasional high peaks reaching 29°C (85°F). Rainfall is fairly common, with about ten days of precipitation, but the lush greenery that results is well worth it. The humidity hovers around 71%, creating a crisp, invigorating atmosphere that contrasts with the muggy feel of July and August. As you explore Lincoln Climate, you'll discover the unique charm that September brings, inviting both locals and visitors alike to enjoy the beauty of this picturesque season.