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September Weather in Spearman, United States

Last updated: June 24, 2025

The average temperature in Spearman, United States during September is a pleasant 23°C (73°F). However, temperatures can vary significantly, with lows of 3°C (38°F) and highs reaching up to 39°C (103°F). Expect a precipitation level of 30 mm (1.2 in) spread across about 5 days, complemented by an average humidity of 79%.

September Temperature in Spearman

In September in Spearman, the average temperature is 23°C (73°F). Maximums can reach 39°C (103°F) and minimums can be as low as 3°C (38°F). Be prepared for a wide range of temperatures to make the most of your travel experience.

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

The chart illustrates September temperature patterns in Spearman, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Spearman, September typically has an average temperature of 23°C (73°F), with highs reaching up to 39°C (103°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec363749566677807873574740
Data source: Temperature data for Spearman 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 Spearman

In Spearman in September, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

September Precipitation Trends in Spearman

The chart displays monthly precipitation patterns in Spearman, 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 Spearman, September typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec161148468853455930551217
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Spearman

In Spearman in September humidity is 79%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace that clings to the skin, making travel feel both invigorating and slightly exhausting as the air wraps around you like a damp blanket.

September Average Humidity in Spearman

This chart illustrates the average monthly humidity levels in Spearman, 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 Spearman is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec74%77%65%67%81%82%82%84%79%75%79%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Spearman

In Spearman in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Spearman.

Maximum UV Index Levels in Spearman for September

The chart shows the monthly maximum UV Index (UVI) for Spearman 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 Spearman typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112111110753
Data source: Spearman 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 Spearman Compares to Other Months

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

This table compares monthly weather conditions in Spearman, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (37°F)16 mm (0.6 inches)74%moderate
February Weather3°C (38°F)11 mm (0.4 inches)77%high
March Weather10°C (50°F)48 mm (1.9 inches)65%very high
April Weather13°C (56°F)46 mm (1.8 inches)67%very high
May Weather19°C (66°F)88 mm (3.5 inches)81%extreme
June Weather25°C (77°F)53 mm (2.1 inches)82%extreme
July Weather27°C (80°F)45 mm (1.8 inches)82%extreme
August Weather26°C (78°F)59 mm (2.3 inches)84%extreme
September Weather23°C (73°F)30 mm (1.2 inches)79%very high
October Weather14°C (58°F)55 mm (2.2 inches)75%high
November Weather8°C (47°F)12 mm (0.5 inches)79%moderate
December Weather4°C (40°F)17 mm (0.7 inches)83%moderate

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