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September Weather in Lake Hallie, United States

Last updated: June 24, 2025

In September, the average temperature in Lake Hallie, United States hovers around 17°C (63°F). Expect a minimum of 0°C (33°F) and a maximum that can soar to 32°C (91°F). With an average humidity of 80% and 94 mm (3.7 in) of precipitation spread over 10 days, this month presents a mix of cool and warm days, making it a dynamic time to experience the local climate!

September Temperature in Lake Hallie

In September in Lake Hallie, the average temperature is 17°C (63°F). Maximums can reach 32°C (91°F), and minimums can be as low as 0°C (33°F). This varied climate makes it essential for travelers to pack a range of clothing options to stay comfortable throughout their visit.

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

The chart illustrates September temperature patterns in Lake Hallie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lake Hallie, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (91°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec161732435869726963483223
Data source: Temperature data for Lake Hallie generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Lake Hallie

In Lake Hallie in September, the precipitation amount is 94 mm (3.7 in) over a duration of 10 days.

September Precipitation Trends in Lake Hallie

The chart displays monthly precipitation patterns in Lake Hallie, 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. In Lake Hallie, September typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec32465591126121121120951124857
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lake Hallie

In Lake Hallie in September humidity is 80%. With an average temperature of 17°C (63°F), this humidity feels like you're walking through a thick, warm blanket, making travel feel slightly stifling and requiring frequent breaks to stay comfortable.

September Average Humidity in Lake Hallie

This chart illustrates the average monthly humidity levels in Lake Hallie, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Lake Hallie is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%89%86%85%79%80%80%78%80%84%89%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lake Hallie

In Lake Hallie in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Lake Hallie.

Maximum UV Index Levels in Lake Hallie for September

The chart shows the monthly maximum UV Index (UVI) for Lake Hallie 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. In September, the maximum UV index in Lake Hallie typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Lake Hallie 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.

How September Weather in Lake Hallie Compares to Other Months

Weather in Lake Hallie varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lake Hallie, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lake Hallie, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (17°F)32 mm (1.3 inches)88%low
February Weather-8°C (17°F)46 mm (1.8 inches)89%moderate
March Weather0°C (33°F)55 mm (2.2 inches)86%moderate
April Weather6°C (43°F)91 mm (3.6 inches)85%high
May Weather14°C (58°F)126 mm (5.0 inches)79%very high
June Weather21°C (69°F)121 mm (4.8 inches)80%very high
July Weather22°C (73°F)121 mm (4.8 inches)80%very high
August Weather20°C (69°F)120 mm (4.7 inches)78%very high
September Weather17°C (63°F)94 mm (3.7 inches)80%high
October Weather9°C (48°F)112 mm (4.4 inches)84%moderate
November Weather0°C (33°F)48 mm (1.9 inches)89%moderate
December Weather-5°C (23°F)57 mm (2.2 inches)85%low

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