September Weather in Frederic, United States

Last updated: June 24, 2025

In Frederic, United States, the average temperature in September is a comfortable 17°C (63°F). However, you might experience a minimum chill of 1°C (33°F) and occasional warmth peaking at 32°C (90°F). Expect 97 mm (3.8 in) of precipitation over 11 days, with the air feeling relatively humid at an average of 81%. Prepare for a mix of weather during your visit!

September Temperature in Frederic

In September in Frederic, the average temperature is 17°C (63°F), with maximums reaching as high as 32°C (90°F) and minimums dropping to as low as 1°C (33°F). This variation makes it an ideal time for travelers to enjoy a range of outdoor activities, from warm sunny days to cooler evenings.

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

The chart illustrates September temperature patterns in Frederic, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Frederic, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec151531425769726962473222
Data source: Temperature data for Frederic 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 Frederic

In Frederic in September, the total precipitation amount is 97 mm (3.8 in) over the course of 11 days.

September Precipitation Trends in Frederic

The chart displays monthly precipitation patterns in Frederic, 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 Frederic, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec223248911079010012697994056
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Frederic

In Frederic in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Frederic

This chart illustrates the average monthly humidity levels in Frederic, 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 Frederic is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%90%85%84%78%80%81%81%81%84%88%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Frederic

In Frederic 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 Frederic.

Maximum UV Index Levels in Frederic for September

The chart shows the monthly maximum UV Index (UVI) for Frederic 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 Frederic typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Frederic 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 Frederic Compares to Other Months

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

This table compares monthly weather conditions in Frederic, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)22 mm (0.9 inches)87%low
February Weather-9°C (16°F)32 mm (1.3 inches)90%moderate
March Weather0°C (32°F)48 mm (1.9 inches)85%moderate
April Weather5°C (42°F)91 mm (3.6 inches)84%high
May Weather14°C (58°F)107 mm (4.2 inches)78%very high
June Weather21°C (69°F)90 mm (3.6 inches)80%very high
July Weather22°C (73°F)100 mm (3.9 inches)81%very high
August Weather21°C (69°F)126 mm (5.0 inches)81%very high
September Weather17°C (63°F)97 mm (3.8 inches)81%high
October Weather8°C (47°F)99 mm (3.9 inches)84%moderate
November Weather0°C (32°F)40 mm (1.6 inches)88%moderate
December Weather-6°C (22°F)56 mm (2.2 inches)84%low

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