September Weather in Miller, United States

Last updated: June 24, 2025

In Miller, United States, the average temperature in September is a pleasant 18°C (65°F). Expect temperatures to range from a cool 3°C (37°F) on the lower end to a warm 35°C (96°F) at the peak. During this month, you can anticipate about 75 mm (3.0 in) of precipitation over approximately 6 days, contributing to an average humidity level of 77%.

September Temperature in Miller

In September in Miller, the average temperature is 18°C (65°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can be as low as 3°C (37°F). This is a great time to visit for those who enjoy mild weather and a chance to experience the region's diverse climate.

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

The chart illustrates September temperature patterns in Miller, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miller, September typically has an average temperature of 18°C (65°F), with highs reaching up to 35°C (96°F) and lows dropping to around 3°C (37°F).

Data source: Temperature data for Miller generated using information from the Copernicus Climate Change Service.

September Precipitation in Miller

In Miller in September, the precipitation amount is 75 mm (3.0 in) occurring over a span of 6 days.

September Precipitation Trends in Miller

The chart displays monthly precipitation patterns in Miller, 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 Miller, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 6 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Miller

In Miller in September humidity is 77%. With an average temperature of 18°C (65°F), this humidity feels like a warm embrace that's both refreshing and slightly stifling, making it essential for travelers to stay hydrated and take frequent breaks to enjoy the vibrant surroundings without feeling overly fatigued.

September Average Humidity in Miller

This chart illustrates the average monthly humidity levels in Miller, 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 Miller is approximately 77%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Miller

In Miller in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Miller.

Maximum UV Index Levels in Miller for September

The chart shows the monthly maximum UV Index (UVI) for Miller 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 Miller typically reaches 8, which falls under the very high exposure category.

Data source: Miller 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 Miller Compares to Other Months

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

This table compares monthly weather conditions in Miller, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	17 mm (0.7 inches)	81%	low
February Weather	-9°C (17°F)	19 mm (0.8 inches)	85%	moderate
March Weather	1°C (33°F)	40 mm (1.6 inches)	76%	moderate
April Weather	6°C (43°F)	56 mm (2.2 inches)	79%	high
May Weather	14°C (58°F)	76 mm (3.0 inches)	76%	very high
June Weather	22°C (72°F)	79 mm (3.1 inches)	81%	very high
July Weather	24°C (76°F)	99 mm (3.9 inches)	82%	very high
August Weather	22°C (72°F)	64 mm (2.5 inches)	82%	very high
September Weather	18°C (65°F)	75 mm (3.0 inches)	77%	very high
October Weather	8°C (47°F)	63 mm (2.5 inches)	76%	moderate
November Weather	1°C (35°F)	14 mm (0.6 inches)	84%	moderate
December Weather	-4°C (25°F)	31 mm (1.2 inches)	81%	low