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September Weather in Petrolia, United States

Last updated: June 24, 2025

In September, the average temperature in Petrolia, United States hovers around 26°C (79°F). Visitors can expect a minimum temperature of 9°C (48°F) and a maximum of 40°C (104°F) throughout the month. With 93 mm (3.7 in) of precipitation spread over 6 days, it's wise to be prepared for occasional showers. Additionally, the average humidity sits at a comfortable 64%, making for a pleasant stay in this vibrant locale.

September Temperature in Petrolia

In September in Petrolia, the average temperature is 26°C (79°F). Maximum temperatures can reach 40°C (104°F), while minimums can drop to as low as 9°C (48°F). Be prepared for a wide range of temperatures when traveling during this month.

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

The chart illustrates September temperature patterns in Petrolia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Petrolia, September typically has an average temperature of 26°C (79°F), with highs reaching up to 40°C (104°F) and lows dropping to around 9°C (48°F).
JanFebMarAprMayJunJulAugSepOctNovDec434558647382878579665448
Data source: Temperature data for Petrolia 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 Petrolia

In Petrolia in September, the precipitation amount is 93 mm (3.7 in) over the course of 6 days.

September Precipitation Trends in Petrolia

The chart displays monthly precipitation patterns in Petrolia, 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 Petrolia, September typically receives around 93 mm (3.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec4455787612948255793903846
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Petrolia

In Petrolia in September, humidity is 64%. With an average temperature of 26°C (79°F), this humidity feels like a warm embrace, making travel slightly uncomfortable as the air clings to your skin and the heat amplifies.

September Average Humidity in Petrolia

This chart illustrates the average monthly humidity levels in Petrolia, 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 Petrolia is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%76%74%75%80%80%75%67%64%70%82%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Petrolia

In Petrolia 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 Petrolia.

Maximum UV Index Levels in Petrolia for September

The chart shows the monthly maximum UV Index (UVI) for Petrolia 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 Petrolia typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110854
Data source: Petrolia 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 Petrolia Compares to Other Months

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

This table compares monthly weather conditions in Petrolia, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)44 mm (1.7 inches)77%moderate
February Weather7°C (46°F)55 mm (2.2 inches)76%high
March Weather14°C (58°F)78 mm (3.1 inches)74%very high
April Weather18°C (64°F)76 mm (3.0 inches)75%very high
May Weather23°C (74°F)129 mm (5.1 inches)80%extreme
June Weather28°C (82°F)48 mm (1.9 inches)80%extreme
July Weather30°C (87°F)25 mm (1.0 inches)75%extreme
August Weather30°C (86°F)57 mm (2.2 inches)67%extreme
September Weather26°C (79°F)93 mm (3.7 inches)64%very high
October Weather19°C (66°F)90 mm (3.5 inches)70%very high
November Weather12°C (54°F)38 mm (1.5 inches)82%moderate
December Weather9°C (48°F)46 mm (1.8 inches)85%moderate

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