September Weather in Plentywood, United States

Last updated: June 24, 2025

In Plentywood, United States, the average temperature in September hovers around 14°C (57°F). However, expect a wide range with minimums dipping to -4°C (24°F) and maximums soaring to 33°C (92°F). Keep your umbrella handy, as the area experiences 55 mm (2.2 in) of precipitation over 6 days. With an average humidity of 65%, the weather promises to be quite an experience!

September Temperature in Plentywood

In September in Plentywood, the average temperature is 14°C (57°F), with maximums reaching 33°C (92°F) and minimums dropping as low as -4°C (24°F). Travelers should be prepared for a wide range of temperatures, making versatile clothing essential for a comfortable visit.

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

The chart illustrates September temperature patterns in Plentywood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plentywood, September typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (92°F) and lows dropping to around -4°C (24°F).

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

September Precipitation in Plentywood

In Plentywood in September, the total precipitation amount is 55 mm (2.2 in) spread over 6 days.

September Precipitation Trends in Plentywood

The chart displays monthly precipitation patterns in Plentywood, 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 Plentywood, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Plentywood

In Plentywood in September, humidity is 65%. With an average temperature of 14°C (57°F), this humidity feels like a mild embrace, making it comfortable for traveling, though some may find it slightly muggy.

September Average Humidity in Plentywood

This chart illustrates the average monthly humidity levels in Plentywood, 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 Plentywood is approximately 65%, 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 Plentywood

In Plentywood in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Plentywood.

Maximum UV Index Levels in Plentywood for September

The chart shows the monthly maximum UV Index (UVI) for Plentywood 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 Plentywood typically reaches 7, which falls under the high exposure category.

Data source: Plentywood 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 Plentywood Compares to Other Months

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

This table compares monthly weather conditions in Plentywood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-10°C (14°F)	9 mm (0.4 inches)	89%	low
February Weather	-12°C (10°F)	17 mm (0.7 inches)	92%	moderate
March Weather	-2°C (28°F)	23 mm (0.9 inches)	84%	moderate
April Weather	3°C (38°F)	24 mm (0.9 inches)	74%	very high
May Weather	12°C (54°F)	31 mm (1.2 inches)	73%	very high
June Weather	18°C (65°F)	82 mm (3.2 inches)	69%	very high
July Weather	21°C (70°F)	51 mm (2.0 inches)	76%	very high
August Weather	19°C (67°F)	36 mm (1.4 inches)	74%	very high
September Weather	14°C (57°F)	55 mm (2.2 inches)	65%	high
October Weather	5°C (41°F)	22 mm (0.9 inches)	71%	moderate
November Weather	-2°C (28°F)	22 mm (0.9 inches)	84%	low
December Weather	-7°C (19°F)	19 mm (0.7 inches)	92%	low