September Weather in Loyalton, United States

Last updated: June 24, 2025

In Loyalton, United States, the average temperature in September is a comfortable 16°C (61°F). However, be prepared for temperature fluctuations, as it can dip to a chilly -2°C (29°F) or soar to a warm 35°C (95°F). Additionally, expect about 13 mm (0.5 in) of precipitation over 3 days, with an average humidity level of 44%.

September Temperature in Loyalton

In September in Loyalton, the average temperature is 16°C (61°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as -2°C (29°F). Whether you're seeking warmth or enjoying cooler evenings, be prepared for a wide range of temperatures during your travels.

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

The chart illustrates September temperature patterns in Loyalton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Loyalton, September typically has an average temperature of 16°C (61°F), with highs reaching up to 35°C (95°F) and lows dropping to around -2°C (29°F).

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

September Precipitation in Loyalton

In Loyalton in September, the precipitation amount is 13 mm (0.5 in) over a span of 3 days.

September Precipitation Trends in Loyalton

The chart displays monthly precipitation patterns in Loyalton, 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 Loyalton, September typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 3 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 Loyalton

In Loyalton in September, humidity is 44%. With an average temperature of 16°C (61°F), this humidity feels like a comfortable and pleasant environment for traveling, allowing for enjoyable outdoor activities without the discomfort often associated with higher humidity levels.

September Average Humidity in Loyalton

This chart illustrates the average monthly humidity levels in Loyalton, 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 Loyalton is approximately 44%, 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 Loyalton

In Loyalton 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 Loyalton.

Maximum UV Index Levels in Loyalton for September

The chart shows the monthly maximum UV Index (UVI) for Loyalton 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 Loyalton typically reaches 10, which falls under the very high exposure category.

Data source: Loyalton 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 Loyalton Compares to Other Months

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

This table compares monthly weather conditions in Loyalton, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (31°F)	126 mm (5.0 inches)	84%	moderate
February Weather	-1°C (31°F)	128 mm (5.1 inches)	84%	high
March Weather	2°C (35°F)	103 mm (4.1 inches)	83%	very high
April Weather	7°C (44°F)	48 mm (1.9 inches)	81%	very high
May Weather	11°C (53°F)	47 mm (1.9 inches)	74%	extreme
June Weather	17°C (63°F)	7 mm (0.3 inches)	64%	extreme
July Weather	22°C (71°F)	10 mm (0.4 inches)	44%	extreme
August Weather	21°C (69°F)	11 mm (0.4 inches)	36%	extreme
September Weather	16°C (61°F)	13 mm (0.5 inches)	44%	very high
October Weather	9°C (48°F)	39 mm (1.5 inches)	65%	high
November Weather	4°C (39°F)	59 mm (2.3 inches)	84%	moderate
December Weather	-2°C (30°F)	95 mm (3.7 inches)	83%	moderate