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September Weather in Spencer, United States

Last updated: June 24, 2025

In September, the average temperature in Spencer, United States hovers around 16°C (62°F). Expect a range that fluctuates between a chilly 0°C (33°F) and a warm 32°C (91°F). During this month, precipitation accumulates to 92 mm (3.6 in) over approximately 11 days, while the air maintains an average humidity of 80%.

September Temperature in Spencer

In September in Spencer, the average temperature is 16°C (62°F). Maximums can reach 32°C (91°F) and minimums can be as low as 0°C (33°F). It's an ideal month for travelers who enjoy mild to warm temperatures and are prepared for cooler nights.

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

The chart illustrates September temperature patterns in Spencer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spencer, September typically has an average temperature of 16°C (62°F), with highs reaching up to 32°C (91°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec171732425768726861473223
Data source: Temperature data for Spencer 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 Spencer

In Spencer in September, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

September Precipitation Trends in Spencer

The chart displays monthly precipitation patterns in Spencer, 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 Spencer, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec34535797121116125140921185253
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Spencer

In Spencer in September humidity is 80%. With an average temperature of 16°C (62°F), this humidity feels like a warm, muggy embrace, making travel slightly uncomfortable as the air hangs heavy, necessitating frequent hydration and light clothing to stay cool and refreshed.

September Average Humidity in Spencer

This chart illustrates the average monthly humidity levels in Spencer, 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 Spencer 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 Spencer

In Spencer 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 Spencer.

Maximum UV Index Levels in Spencer for September

The chart shows the monthly maximum UV Index (UVI) for Spencer 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 Spencer typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458810997532
Data source: Spencer 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 Spencer Compares to Other Months

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

This table compares monthly weather conditions in Spencer, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)34 mm (1.3 inches)88%low
February Weather-8°C (17°F)53 mm (2.1 inches)89%moderate
March Weather0°C (32°F)57 mm (2.3 inches)86%moderate
April Weather6°C (42°F)97 mm (3.8 inches)85%very high
May Weather14°C (57°F)121 mm (4.8 inches)79%very high
June Weather20°C (68°F)116 mm (4.6 inches)80%very high
July Weather22°C (72°F)125 mm (4.9 inches)80%very high
August Weather20°C (68°F)140 mm (5.5 inches)78%very high
September Weather16°C (62°F)92 mm (3.6 inches)80%high
October Weather8°C (47°F)118 mm (4.6 inches)84%moderate
November Weather0°C (33°F)51 mm (2.0 inches)89%moderate
December Weather-5°C (24°F)53 mm (2.1 inches)85%low

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