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September Weather in Cedar City, United States

Last updated: June 24, 2025

In Cedar City, United States, the average temperature in September hovers around 17°C (63°F). Expect a range that varies from a chilly -2°C (28°F) to a warm 34°C (93°F). During this month, precipitation typically measures about 12 mm (0.5 in) over the course of 2 days, with an average humidity level of 47%.

September Temperature in Cedar City

In September in Cedar City, the average temperature is 17°C (63°F). Maximum temperatures can reach 34°C (93°F), while minimums can drop as low as -2°C (28°F). Be prepared for a wide range of weather conditions when planning your trip to Cedar City during this month.

September Weather in Cedar City: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cedar City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cedar City, September typically has an average temperature of 17°C (63°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec262835455468737263473828
Data source: Temperature data for Cedar City 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 Cedar City

In Cedar City in September, the precipitation amount is 12 mm (0.5 in) over the course of 2 days.

September Precipitation Trends in Cedar City

The chart displays monthly precipitation patterns in Cedar City, 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 Cedar City, September typically receives around 12 mm (0.5 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec46546530315332212293440
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cedar City

In Cedar City in September humidity is 47%. With an average temperature of 17°C (63°F), this humidity feels like a mild embrace, making traveling comfortable and refreshing, ideal for exploring the local sights without feeling too sticky or weighed down.

September Average Humidity in Cedar City

This chart illustrates the average monthly humidity levels in Cedar City, 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 Cedar City is approximately 47%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%82%72%62%45%34%30%31%47%62%77%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cedar City

In Cedar City 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 Cedar City.

Maximum UV Index Levels in Cedar City for September

The chart shows the monthly maximum UV Index (UVI) for Cedar City 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 Cedar City typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110754
Data source: Cedar City 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 Cedar City Compares to Other Months

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

This table compares monthly weather conditions in Cedar City, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-3°C (26°F)46 mm (1.8 inches)80%moderate
February Weather-2°C (29°F)54 mm (2.1 inches)82%high
March Weather2°C (36°F)65 mm (2.6 inches)72%very high
April Weather7°C (46°F)30 mm (1.2 inches)62%very high
May Weather12°C (55°F)31 mm (1.2 inches)45%extreme
June Weather20°C (68°F)5 mm (0.2 inches)34%extreme
July Weather23°C (73°F)33 mm (1.3 inches)30%extreme
August Weather22°C (72°F)22 mm (0.8 inches)31%extreme
September Weather17°C (63°F)12 mm (0.5 inches)47%very high
October Weather8°C (47°F)29 mm (1.1 inches)62%high
November Weather4°C (39°F)34 mm (1.3 inches)77%moderate
December Weather-2°C (28°F)40 mm (1.6 inches)80%moderate

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