September Weather in Morrison, United States

Last updated: June 24, 2025

In September, the average temperature in Morrison, United States is a pleasant 23°C (73°F), with lows dipping to 8°C (46°F) and soaring highs reaching 36°C (97°F). Expect about 110 mm (4.3 in) of precipitation over 9 days, accompanied by an average humidity of 64%. Perfect for enjoying the diverse climate!

September Temperature in Morrison

In September in Morrison, the average temperature is 23°C (73°F), with maximums reaching up to 36°C (97°F) and minimums dropping as low as 8°C (46°F). This is an ideal time for travelers to enjoy a variety of outdoor activities while being prepared for fluctuating temperatures.

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

The chart illustrates September temperature patterns in Morrison, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Morrison, September typically has an average temperature of 23°C (73°F), with highs reaching up to 36°C (97°F) and lows dropping to around 8°C (46°F).

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

September Precipitation in Morrison

In Morrison in September, the precipitation amount is 110 mm (4.3 in) over the course of 9 days.

September Precipitation Trends in Morrison

The chart displays monthly precipitation patterns in Morrison, 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 Morrison, September typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 9 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 Morrison

In Morrison in September, humidity is 64%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel quite comfortable yet slightly sticky, urging travelers to enjoy leisurely activities early in the day or seek shade during peak hours.

September Average Humidity in Morrison

This chart illustrates the average monthly humidity levels in Morrison, 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 Morrison is approximately 64%, 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 Morrison

In Morrison in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Morrison.

Maximum UV Index Levels in Morrison for September

The chart shows the monthly maximum UV Index (UVI) for Morrison 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 Morrison typically reaches 9, which falls under the very high exposure category.

Data source: Morrison 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 Morrison Compares to Other Months

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

This table compares monthly weather conditions in Morrison, 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 (41°F)	108 mm (4.2 inches)	87%	moderate
February Weather	8°C (46°F)	178 mm (7.0 inches)	87%	high
March Weather	12°C (53°F)	182 mm (7.2 inches)	85%	very high
April Weather	15°C (59°F)	147 mm (5.8 inches)	82%	very high
May Weather	21°C (69°F)	117 mm (4.6 inches)	83%	extreme
June Weather	24°C (75°F)	123 mm (4.9 inches)	82%	extreme
July Weather	26°C (79°F)	113 mm (4.5 inches)	78%	extreme
August Weather	25°C (77°F)	114 mm (4.5 inches)	67%	very high
September Weather	23°C (73°F)	110 mm (4.3 inches)	64%	very high
October Weather	17°C (63°F)	116 mm (4.6 inches)	74%	high
November Weather	9°C (49°F)	74 mm (2.9 inches)	87%	moderate
December Weather	7°C (46°F)	144 mm (5.7 inches)	88%	moderate