September Weather in Montrose, Canada

Last updated: June 18, 2025

In September, the average temperature in Montrose, Canada hovers around 13°C (56°F), with extremes ranging from a chilly -2°C (28°F) to a warm 31°C (89°F). This month sees a total precipitation of 44 mm (1.7 in) spread across 8 days, contributing to an average humidity of 74%.

September Temperature in Montrose

In September in Montrose, the average temperature is 13°C (56°F). Maximum temperatures can reach 31°C (89°F), while minimums can drop as low as -2°C (28°F). Be prepared for a wide range of weather conditions for your travels!

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

The chart illustrates September temperature patterns in Montrose, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montrose, September typically has an average temperature of 13°C (56°F), with highs reaching up to 31°C (89°F) and lows dropping to around -2°C (28°F).

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

September Precipitation in Montrose

In Montrose in September, the total precipitation amount is 44 mm (1.7 in) over a duration of 8 days.

September Precipitation Trends in Montrose

The chart displays monthly precipitation patterns in Montrose, 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 Montrose, September typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 8 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 Montrose

In Montrose in September humidity is 74%. With an average temperature of 13°C (56°F), this humidity feels like a damp chill that can make outdoor activities uncomfortable, especially for travelers unaccustomed to such conditions.

September Average Humidity in Montrose

This chart illustrates the average monthly humidity levels in Montrose, 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 Montrose is approximately 74%, 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 Montrose

In Montrose 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 Montrose.

Maximum UV Index Levels in Montrose for September

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

Data source: Montrose 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 Montrose Compares to Other Months

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

This table compares monthly weather conditions in Montrose, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (24°F)	88 mm (3.4 inches)	90%	low
February Weather	-5°C (23°F)	79 mm (3.1 inches)	91%	moderate
March Weather	1°C (34°F)	71 mm (2.8 inches)	89%	moderate
April Weather	5°C (41°F)	71 mm (2.8 inches)	85%	high
May Weather	11°C (52°F)	59 mm (2.3 inches)	82%	very high
June Weather	15°C (60°F)	44 mm (1.7 inches)	81%	very high
July Weather	20°C (68°F)	14 mm (0.6 inches)	84%	very high
August Weather	19°C (67°F)	25 mm (1.0 inches)	75%	very high
September Weather	13°C (56°F)	44 mm (1.7 inches)	74%	high
October Weather	5°C (41°F)	67 mm (2.7 inches)	85%	moderate
November Weather	0°C (33°F)	92 mm (3.6 inches)	88%	low
December Weather	-4°C (26°F)	99 mm (3.9 inches)	93%	low