September Weather in Winnemucca, United States

Last updated: June 24, 2025

In September, the average temperature in Winnemucca, United States is a pleasant 20°C (68°F). However, you might experience some extremes, with temperatures ranging from a chilly 1°C (35°F) to a scorching 38°C (100°F). Expect 8 mm (0.3 in) of precipitation spread over 2 days, and enjoy a relatively low average humidity of 40%.

September Temperature in Winnemucca

In September in Winnemucca, the average temperature is 20°C (68°F), with maximums soaring to 38°C (100°F) and minimums dipping as low as 1°C (35°F). This wide temperature range makes it essential for travelers to pack accordingly to enjoy their visit comfortably.

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

The chart illustrates September temperature patterns in Winnemucca, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winnemucca, September typically has an average temperature of 20°C (68°F), with highs reaching up to 38°C (100°F) and lows dropping to around 1°C (35°F).

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

September Precipitation in Winnemucca

In Winnemucca in September, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.

September Precipitation Trends in Winnemucca

The chart displays monthly precipitation patterns in Winnemucca, 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 Winnemucca, September typically receives around 8 mm (0.3 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 Winnemucca

In Winnemucca in September humidity is 40%. With an average temperature of 20°C (68°F), this humidity feels like a refreshing breeze that lightly cools your skin, making it comfortable for exploring the sights and enjoying outdoor activities.

September Average Humidity in Winnemucca

This chart illustrates the average monthly humidity levels in Winnemucca, 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 Winnemucca 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 Winnemucca

In Winnemucca 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 Winnemucca.

Maximum UV Index Levels in Winnemucca for September

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

Data source: Winnemucca 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 Winnemucca Compares to Other Months

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

This table compares monthly weather conditions in Winnemucca, 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 (30°F)	41 mm (1.6 inches)	86%	moderate
February Weather	1°C (34°F)	41 mm (1.6 inches)	86%	moderate
March Weather	5°C (42°F)	47 mm (1.8 inches)	84%	high
April Weather	10°C (51°F)	30 mm (1.2 inches)	79%	very high
May Weather	15°C (59°F)	45 mm (1.8 inches)	65%	extreme
June Weather	21°C (71°F)	12 mm (0.5 inches)	60%	extreme
July Weather	27°C (81°F)	1 mm (0.1 inches)	51%	extreme
August Weather	26°C (79°F)	3 mm (0.1 inches)	39%	extreme
September Weather	20°C (68°F)	8 mm (0.3 inches)	40%	very high
October Weather	11°C (52°F)	22 mm (0.9 inches)	60%	high
November Weather	5°C (41°F)	28 mm (1.1 inches)	83%	moderate
December Weather	-2°C (29°F)	35 mm (1.4 inches)	85%	moderate