September Weather in Elko, United States

Last updated: June 24, 2025

In September, the average temperature in Elko, United States hovers around 18°C (64°F). While the mercury can dip to a chilly -3°C (27°F), it may rise to a sweltering 36°C (97°F) on warmer days. Expect about 16 mm (0.6 in) of precipitation spread over 2 days, with the air maintaining an average humidity of 40%.

September Temperature in Elko

In September in Elko, the average temperature is 18°C (64°F). Maximums can reach 36°C (97°F) and minimums can be as low as -3°C (27°F). This wide temperature range makes it essential for travelers to pack both warm and light clothing to adapt to changing weather conditions.

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

The chart illustrates September temperature patterns in Elko, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Elko, September typically has an average temperature of 18°C (64°F), with highs reaching up to 36°C (97°F) and lows dropping to around -3°C (27°F).

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

September Precipitation in Elko

In Elko in September, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

September Precipitation Trends in Elko

The chart displays monthly precipitation patterns in Elko, 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 Elko, September typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 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 Elko

In Elko in September, humidity is 40%. With an average temperature of 18°C (64°F), this humidity feels like a refreshing breeze, making it a pleasant time for traveling and exploring the outdoors.

September Average Humidity in Elko

This chart illustrates the average monthly humidity levels in Elko, 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 Elko is approximately 40%, 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 Elko

In Elko 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 Elko.

Maximum UV Index Levels in Elko for September

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

Data source: Elko 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 Elko Compares to Other Months

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

This table compares monthly weather conditions in Elko, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (26°F)	40 mm (1.6 inches)	84%	moderate
February Weather	-3°C (27°F)	48 mm (1.9 inches)	85%	high
March Weather	1°C (35°F)	51 mm (2.0 inches)	81%	very high
April Weather	7°C (45°F)	48 mm (1.9 inches)	74%	very high
May Weather	12°C (54°F)	53 mm (2.1 inches)	61%	extreme
June Weather	19°C (67°F)	13 mm (0.5 inches)	59%	extreme
July Weather	25°C (78°F)	4 mm (0.2 inches)	49%	extreme
August Weather	24°C (75°F)	6 mm (0.2 inches)	36%	extreme
September Weather	18°C (64°F)	16 mm (0.6 inches)	40%	very high
October Weather	8°C (47°F)	32 mm (1.3 inches)	59%	high
November Weather	3°C (38°F)	29 mm (1.2 inches)	81%	moderate
December Weather	-4°C (25°F)	41 mm (1.6 inches)	84%	moderate