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September Weather in Spencer, United States

Last updated: June 24, 2025

In Spencer, United States, the average temperature in September hovers around 22°C (73°F). Temperatures can vary significantly, with a minimum of 8°C (47°F) and a maximum soaring to 35°C (95°F). Expect 108 mm (4.3 in) of precipitation spread over 9 days, and enjoy the moderate average humidity of 64%.

September Temperature in Spencer

In September in Spencer, the average temperature is 22°C (73°F). Maximum temperatures can reach 35°C (95°F), while minimum temperatures can drop as low as 8°C (47°F). This makes it an ideal time to visit Spencer for travelers who enjoy mild weather with some warm and cooler options.

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 22°C (73°F), with highs reaching up to 35°C (95°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec404652586874787672634845
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 108 mm (4.3 in) spread over 9 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 108 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec10617616914912411811711810812073141
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 64%. With an average temperature of 22°C (73°F), this humidity feels like a warm embrace, making traveling comfortable yet slightly sticky, as you enjoy the vibrant sights while needing to stay hydrated.

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 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%85%82%83%82%78%67%64%75%87%89%
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 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109753
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 Weather5°C (41°F)105 mm (4.2 inches)87%moderate
February Weather8°C (46°F)176 mm (6.9 inches)87%high
March Weather11°C (52°F)169 mm (6.7 inches)85%very high
April Weather15°C (59°F)149 mm (5.9 inches)82%very high
May Weather20°C (69°F)124 mm (4.9 inches)83%extreme
June Weather24°C (75°F)118 mm (4.6 inches)82%extreme
July Weather26°C (78°F)117 mm (4.6 inches)78%extreme
August Weather25°C (77°F)118 mm (4.6 inches)67%very high
September Weather22°C (73°F)108 mm (4.3 inches)64%very high
October Weather17°C (63°F)120 mm (4.7 inches)74%high
November Weather9°C (49°F)73 mm (2.9 inches)87%moderate
December Weather7°C (45°F)141 mm (5.5 inches)88%moderate

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