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September Weather in Coalmont, United States

Last updated: June 24, 2025

In September, the average temperature in Coalmont, United States hovers around 22°C (72°F). Temperatures can range from a cool 7°C (46°F) to a warm 35°C (96°F). Be prepared for some rain, as the area sees about 115 mm (4.5 in) of precipitation over 11 days, contributing to an average humidity level of 64%.

September Temperature in Coalmont

In September in Coalmont, the average temperature is 22°C (72°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 7°C (46°F). This makes it an ideal time for travelers seeking mild weather and a mix of warm days and cool evenings.

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

The chart illustrates September temperature patterns in Coalmont, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coalmont, September typically has an average temperature of 22°C (72°F), with highs reaching up to 35°C (96°F) and lows dropping to around 7°C (46°F).
JanFebMarAprMayJunJulAugSepOctNovDec404652586873777572624844
Data source: Temperature data for Coalmont 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 Coalmont

In Coalmont in September, the total precipitation amount is 115 mm (4.5 in) spread over 11 days.

September Precipitation Trends in Coalmont

The chart displays monthly precipitation patterns in Coalmont, 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 Coalmont, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec11518820515811013413513111512679155
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Coalmont

In Coalmont in September humidity is 64%. With an average temperature of 22°C (72°F), this humidity feels like a warm, tropical embrace, making travel enjoyable yet slightly sticky, prompting visitors to seek shade or refreshing beverages while exploring the vibrant surroundings.

September Average Humidity in Coalmont

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

In Coalmont 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 Coalmont.

Maximum UV Index Levels in Coalmont for September

The chart shows the monthly maximum UV Index (UVI) for Coalmont 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 Coalmont typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109754
Data source: Coalmont 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 Coalmont Compares to Other Months

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

This table compares monthly weather conditions in Coalmont, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)115 mm (4.5 inches)87%moderate
February Weather8°C (46°F)188 mm (7.4 inches)87%high
March Weather11°C (52°F)205 mm (8.1 inches)85%very high
April Weather14°C (58°F)158 mm (6.2 inches)82%very high
May Weather20°C (68°F)110 mm (4.3 inches)83%extreme
June Weather23°C (74°F)134 mm (5.3 inches)82%extreme
July Weather25°C (77°F)135 mm (5.3 inches)78%extreme
August Weather24°C (76°F)131 mm (5.2 inches)67%very high
September Weather22°C (72°F)115 mm (4.5 inches)64%very high
October Weather17°C (62°F)126 mm (4.9 inches)74%high
November Weather9°C (48°F)79 mm (3.1 inches)87%moderate
December Weather7°C (45°F)155 mm (6.1 inches)88%moderate

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