September Weather in Fennimore, United States

Last updated: June 24, 2025

In September, the average temperature in Fennimore, United States is a pleasant 19°C (66°F). Expect temperature variations, with minimums dipping to 3°C (38°F) and highs reaching up to 33°C (92°F). Be prepared for some rain, as the area experiences an average precipitation of 120 mm (4.7 in) over about 10 days, coupled with an average humidity of 74%.

September Temperature in Fennimore

In September in Fennimore, the average temperature is 19°C (66°F). Maximum temperatures can reach 33°C (92°F), while minimums can dip as low as 3°C (38°F). This variety in weather makes Fennimore an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates September temperature patterns in Fennimore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fennimore, September typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec212337476072757165513629
Data source: Temperature data for Fennimore 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 Fennimore

In Fennimore in September, the precipitation amount is 120 mm (4.7 in) spread over a duration of 10 days.

September Precipitation Trends in Fennimore

The chart displays monthly precipitation patterns in Fennimore, 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 Fennimore, September typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec43565984137132108911201254740
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Fennimore

In Fennimore in September humidity is 74%. With an average temperature of 19°C (66°F), this humidity feels like a warm, enveloping blanket, making it ideal for leisurely outdoor exploration but potentially heavy for those not accustomed to tropical conditions.

September Average Humidity in Fennimore

This chart illustrates the average monthly humidity levels in Fennimore, 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 Fennimore is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%84%83%75%79%75%69%74%79%88%82%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fennimore

In Fennimore in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Fennimore.

Maximum UV Index Levels in Fennimore for September

The chart shows the monthly maximum UV Index (UVI) for Fennimore 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 Fennimore typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098532
Data source: Fennimore 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 Fennimore Compares to Other Months

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

This table compares monthly weather conditions in Fennimore, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)43 mm (1.7 inches)84%moderate
February Weather-5°C (23°F)55 mm (2.2 inches)85%moderate
March Weather3°C (37°F)59 mm (2.3 inches)84%moderate
April Weather8°C (47°F)84 mm (3.3 inches)83%very high
May Weather16°C (60°F)137 mm (5.4 inches)75%very high
June Weather22°C (72°F)132 mm (5.2 inches)79%very high
July Weather24°C (75°F)108 mm (4.3 inches)75%very high
August Weather22°C (71°F)91 mm (3.6 inches)69%very high
September Weather19°C (66°F)120 mm (4.7 inches)74%very high
October Weather11°C (51°F)125 mm (4.9 inches)79%moderate
November Weather2°C (37°F)47 mm (1.9 inches)88%moderate
December Weather-2°C (29°F)40 mm (1.6 inches)82%low

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