September Weather in Schroon Lake, United States

Last updated: February 24, 2025

September in Schroon Lake, United States, showcases a dynamic weather profile characterized by warm temperatures and varying conditions. Maximum temperatures soar to 32°C (89°F), while the average hovers around a comfortable 16°C (61°F), providing a pleasant backdrop for outdoor activities. As the month progresses, temperatures dip to a minimum of 0°C (32°F), hinting at the impending arrival of autumn. Visitors can expect moderate precipitation, with 76 mm (3.0 in) falling over approximately 8 days, contributing to the area's lush landscapes. With an average humidity level of 72%, September offers a refreshing experience, balancing warmth with crisp, invigorating air, perfect for exploring the scenic beauty of Schroon Lake.

September Temperature in Schroon Lake

In September, Schroon Lake transforms as the warm embrace of summer gives way to the crispness of autumn. The temperatures start to dip with a minimum of 0°C (32°F), but it remains pleasantly warm during the day, reaching an average of 16°C (61°F) and peaking at 32°C (89°F). This transitional month features a delightful blend of warm afternoons perfect for outdoor activities and cooler evenings that hint at the oncoming fall. As the month progresses, the vibrant hues of foliage begin to emerge, making it an ideal time for nature lovers to experience the stunning beauty of the region. Overall, September presents a comfortable climate, allowing visitors to enjoy the tail end of summer while subtly ushering in the charm of autumn.

September Weather in Schroon Lake: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Schroon Lake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec202330435564706861503526
Data source: Temperature data for Schroon Lake 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 Schroon Lake

September in Schroon Lake brings a mild descent in precipitation, with 76 mm (3.0 in) of rain measured over 8 days. This marks a noticeable dip from the heavier summer months, where July and August experienced 132 mm (5.2 in) and 111 mm (4.4 in), respectively. As the region transitions into autumn, September’s rainfall signals the onset of cooler, crisp days, yet remains considerably lighter compared to the following month of October, which historically sees a spike to 149 mm (5.9 in). This rhythm of precipitation reflects a pattern of wet summers yielding to drier early autumns, setting the stage for the vibrant foliage to come.

September Precipitation Trends in Schroon Lake

The chart displays monthly precipitation patterns in Schroon Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec808268124991051321117614910492
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Schroon Lake

In September, humidity in Schroon Lake sees a slight increase to 72%, a subtle rise from the summer lows of 64% in August. This transitional month marks a shift as temperatures cool, reflecting the gradual return of moisture in the air. As the year progresses, humidity fluctuates, peaking during the cold winter months with January and February hovering near 89%, while the warm summer months boast lower levels, with July at its driest at 66%. The trend illustrates an oscillation between high humidity in the winter and a dip during the warmer months, making September a pivotal moment in this cycle of moisture that bridges the gap between the heat of summer and the chill of autumn.

September Average Humidity in Schroon Lake

This chart illustrates the average monthly humidity levels in Schroon Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec90%88%86%84%76%72%67%64%72%81%87%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Schroon Lake

In September, Schroon Lake experiences a UV Index of 7, indicating a high exposure category with a burn time of just 25 minutes—a notable reduction from the intense summer months. As the season transitions from the peak summer sun, where indices hovered at 9 or 10, the sun's rays remain potent but are starting to ease. This pattern illustrates a gradual decrease in UV exposure as autumn approaches, making it essential to stay mindful of sun safety, even as the leaves begin to change. For more detailed information, check the Schroon Lake UV Index.

Maximum UV Index Levels in Schroon Lake for September

The chart shows the monthly maximum UV Index (UVI) for Schroon Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec3458910997532
Data source: Schroon Lake 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 Schroon Lake

As summer gracefully transitions to autumn, September in Schroon Lake continues to bask in the lingering warmth of the sun, offering an impressive 292 hours of sunshine. This month marks a slight decline from the peak of July, which boasts a luminous 336 hours, yet still outshines the earlier months of the year. The gradual increase in daylight from January's 113 hours to September's rich bounty highlights a clear trend towards longer, sunnier days as the seasons shift. Following September, sunshine hours will taper off, dipping to 204 hours in October, reminding us that the enchanting embrace of summer is gradually giving way to the crispness of fall. This seasonal arc creates a beautiful tapestry of light, perfect for enjoying the vibrant foliage and tranquil waters of Schroon Lake.

Monthly Sunshine Duration in Schroon Lake: September Highlighted

The September sunshine duration represents the total number of hours Schroon Lake 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.
JanFebMarAprMayJunJulAugSepOctNovDec113h152h226h225h269h325h336h332h292h204h157h133h
Data source: Schroon Lake September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Schroon Lake During September

As summer fades into autumn, September in Schroon Lake offers a moderate chance of sunny weather at 38%. This marks a transition from the peak summer months, where the sun typically shines brighter, although July’s 29% reflects a notable dip likely due to increased rainfall. Interestingly, September's sun probability is similar to that of May and June, suggesting a consistent level of sunshine as the season changes. Uniquely, this month benefits from the remnants of summer warmth, making it an ideal time for outdoor activities, even as the likelihood of sunny days begins to wane compared to the sunnier spring months.

Percentage of Sunny Days in September in Schroon Lake

The chart illustrates the percentage of sunny days in Schroon Lake 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 Schroon Lake experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%26%52%38%36%37%29%34%38%32%44%24%
Data source: Schroon Lake September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Schroon Lake in September

As September unfolds in Schroon Lake, the days begin their subtle yet noteworthy transition, offering about 12 hours of daylight. This marks a gentle decline from the 14 hours enjoyed in May and 15 hours during the peak summer months of June and July. The gradual shortening of daylight reflects the inevitable shift towards autumn, yet September still holds on to the warmth and vibrancy of late summer. With each passing week, the sun sets earlier, crafting picturesque evenings that invite nature lovers to relish the changing foliage. As daylight dips into October's 10 hours, the anticipation for autumn’s full embrace grows, promising a beautiful tapestry of colors and a hint of crispness in the air.

Average Daylight Hours in Schroon Lake for September

The chart illustrates the variation in daylight duration in Schroon Lake throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 29m11h 58m13h 27m14h 44m15h 22m15h 1m13h 53m12h 26m10h 57m9h 38m8h 58m
Data source: Schroon Lake daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Schroon Lake

As the seasons shift in Schroon Lake, September brings a gentle average wind speed of 2.7 m/s (6 mph), echoing the mild breezes of April and November. This steady wind pattern suggests a transition from the calmer summer months, where July and August experienced their lowest average speeds, down to the slightly brisker days ahead in autumn. Interestingly, September's winds revive the livelier gusts of early spring, hinting at nature's subtle preparations for the coming changes. Overall, the moderate winds create a refreshing backdrop perfect for outdoor activities, as the vibrant foliage of the Adirondacks begins to transform into a stunning display of autumn colors.

Average September Wind Speed in Schroon Lake

The chart displays monthly wind speed patterns in Schroon Lake, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.83.52.72.62.92.32.12.7 m/s2.42.72.9
Data source: Schroon Lake September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Schroon Lake Compares to Other Months

The weather in Schroon 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 Schroon Lake and find detailed weather information for every month.

September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 0°C (32°F) at night to a warm 32°C (89°F) during the day, with an average of 16°C (61°F). The month experiences 76 mm (3.0 in) of precipitation over approximately 8 days, accompanied by a humidity level of 72%. In contrast, January brings frigid temperatures, plunging as low as -29°C (-20°F) with an average of -7°C (20°F) and a maximum of only 12°C (54°F). This winter month records slightly higher precipitation at 80 mm (3.2 in) over 9 days, but features a significantly higher humidity level of 89%. Such variations highlight how drastically the weather changes between these two months. For more details, check out Schroon Lake weather in January.

September and February present stark contrasts in weather conditions. In September, temperatures vary significantly, ranging from a chilly 0°C (32°F) to a warm 32°C (89°F), with an average of 16°C (61°F). During this month, precipitation is relatively moderate at 76 mm (3.0 in) over about 8 days, and humidity sits at a comfortable 72%. In contrast, February is characterized by much colder temperatures, with a minimum of -24°C (-12°F) and an average of -5°C (23°F), peaking at 18°C (65°F). This month sees slightly higher precipitation at 82 mm (3.2 in) across 12 days and notably higher humidity at 88%. To explore more about February conditions, check out Schroon Lake weather in February.

September and March exhibit stark contrasts in weather conditions. In September, temperatures range from a mild low of 0°C (32°F) to a warm high of 32°C (89°F), with an average of 16°C (61°F). The month sees about 76 mm (3.0 in) of precipitation over 8 days, accompanied by a humidity level of 72%. In contrast, March experiences much colder temperatures, ranging from a minimum of -21°C (-5°F) to a maximum of 19°C (67°F), with an average temperature of -1°C (30°F). Despite having slightly less precipitation at 68 mm (2.7 in) over 9 days, March is marked by higher humidity at 86%. For more detailed information, check out Schroon Lake weather in March.

September and April present distinct climatic contrasts. In September, temperatures can range from a chilly 0°C (32°F) at night to a warm 32°C (89°F) during the day, with an average temperature of 16°C (61°F). The month experiences about 76 mm (3.0 in) of precipitation over approximately 8 days, accompanied by a moderate humidity of 72%. In contrast, April brings cooler temperatures, with minimums of -8°C (18°F) and maximums reaching 25°C (77°F), averaging around 6°C (43°F). This month sees higher precipitation levels at 124 mm (4.9 in) spread over 12 days, along with increased humidity at 84%. For a detailed look at April weather, check out Schroon Lake weather in April.

In comparing the weather of September and May, it’s evident that both months can experience significant temperature variations, with September featuring an average temperature of 16°C (61°F) and May slightly cooler at 13°C (56°F). Both months share a maximum temperature of 31°C (89°F), but September offers a higher minimum at 0°C (32°F) compared to May's -1°C (30°F). While September experiences less precipitation, totaling 76 mm (3.0 in) over 8 days, May sees a higher amount of rainfall at 99 mm (3.9 in) spread across 13 days. The humidity levels are relatively similar, with September at 72% and May slightly higher at 76%. For a detailed look at May conditions, you can visit Schroon Lake weather in May.

When comparing the weather in September and June, we see some notable differences. September tends to have a wider temperature range, with minimums dropping to 0°C (32°F) and maximums peaking at 32°C (89°F), resulting in an average of 16°C (61°F). In contrast, June starts off a bit milder, with minimum temperatures at 4°C (40°F) and maximums reaching up to 33°C (91°F), yielding an average temperature of 18°C (65°F). Precipitation levels are generally higher in June, with 105 mm (4.1 in) of rain over 13 days compared to September’s 76 mm (3.0 in) over just 8 days. Both months share the same humidity level of 72%, contributing to a similar feeling of stickiness in the air. For a closer look at the specifics of June weather, you can check out Schroon Lake weather in June.

September and July present notable differences in weather patterns. In July, temperatures range from a minimum of 9°C (49°F) to a maximum of 36°C (96°F), with an average of 21°C (71°F), making it the warmest month of the summer. However, it also experiences higher precipitation, totaling 132 mm (5.2 in) over approximately 14 days, with a humidity level of 66%. In contrast, September features a broader temperature range with a minimum of 0°C (32°F) and a maximum of 32°C (89°F), averaging 16°C (61°F). While it is cooler, September sees lower precipitation at 76 mm (3.0 in) spread over 8 days, and a slightly higher humidity level at 72%. For more details on July weather, visit Schroon Lake weather in July.

In September, temperatures range from a chilly 0°C (32°F) at night to a warm 32°C (89°F) during the day, with an average of 16°C (61°F). This month sees a notable decrease in precipitation, totaling 76 mm (3.0 in) over eight days, and a higher humidity level of 72%. In contrast, August features milder nighttime temperatures with a minimum of 7°C (45°F) and a higher average temperature of 20°C (68°F). The month experiences more rain, accumulating 111 mm (4.4 in) over 13 days, alongside a lower humidity of 64%. Overall, September tends to have cooler nights, less precipitation, and higher humidity compared to the warmer and wetter conditions of August. For more detailed information, you can check Schroon Lake weather in August.

In September, temperatures in Schroon Lake typically range from a chilly 0°C (32°F) at night to a warm 32°C (89°F) during the day, with an average temperature of 16°C (61°F). The month brings about 76 mm (3.0 in) of precipitation over approximately 8 days, accompanied by a relative humidity of 72%. In contrast, October sees a notable drop in temperatures, with minimums diving to -4°C (25°F) and a maximum of 25°C (78°F), averaging around 10°C (50°F). Rainfall increases to 149 mm (5.9 in) across about 13 days, and humidity rises slightly to 81%. For more detailed information, check out Schroon Lake weather in October.

September and November weather present a striking contrast in temperature and conditions. In September, temperatures range from a minimum of 0°C (32°F) to a maximum of 32°C (89°F), with an average of 16°C (61°F). The month experiences moderate precipitation, totaling 76 mm (3.0 in) over 8 days, and humidity remains relatively comfortable at 72%. In contrast, November brings much colder temperatures, with a minimum of -20°C (-3°F) and a maximum of 22°C (72°F), averaging just 2°C (35°F). This month also sees increased precipitation, with 104 mm (4.1 in) falling over 13 days and humidity levels rising to 87%. For more detailed insights about November weather, check out Schroon Lake weather in November.

In September, temperatures in Schroon Lake range from a minimum of 0°C (32°F) to a comfortable average of 16°C (61°F), with highs reaching up to 32°C (89°F). The weather is relatively humid at 72%, and there are about 8 days of precipitation totaling 76 mm (3.0 in). In contrast, December brings a stark change, with temperatures plunging to a minimum of -27°C (-15°F) and an average of -3°C (26°F). The maximum temperature in December is a mild 14°C (58°F), but the humidity increases to 84%, and precipitation rises slightly to 92 mm (3.6 in) over 10 days. For a deeper dive into December conditions, check Schroon Lake weather in December.

Compare Schroon Lake's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Schroon Lake

As summer fades, September at Schroon Lake presents a unique weather experience that bridges the warmth of the season with the crispness of autumn. With an average temperature that comfortably hovers around 16°C (61°F), the days can still feel quite warm, occasionally peaking at 32°C (89°F), yet cooler nights remind you that fall is on the horizon. While the humidity remains a noticeable 72%, the month's 76 mm (3.0 in) of precipitation over just 8 days adds a refreshing touch, contrasting sharply with the drier summer months. This transitional period not only revitalizes the landscape but also invites outdoor enthusiasts to enjoy the stunning fall foliage. For a more comprehensive understanding of the area's climate patterns, visit Schroon Lake Climate.