September Weather in Glenville, United States

Last updated: June 24, 2025

In Glenville, United States, the average temperature in September hovers around 21°C (69°F), making it a pleasant time to visit. However, be prepared for variability: temperatures can dip to a chilly 4°C (40°F) or soar to a scorching 35°C (95°F). Expect 107 mm (4.2 in) of precipitation spread over 9 days, so pack your umbrella! With an average humidity of 73%, the air can feel quite warm, adding to the summer charm.

September Temperature in Glenville

In September, in Glenville, the average temperature is 21°C (69°F). The maximum can reach 35°C (95°F), while the minimum can drop to as low as 4°C (40°F). This weather makes it an ideal time for travelers to enjoy outdoor activities and explore the local attractions.

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

The chart illustrates September temperature patterns in Glenville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glenville, September typically has an average temperature of 21°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (40°F).

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

September Precipitation in Glenville

In Glenville in September, the precipitation amount is 107 mm (4.2 in), occurring over a span of 9 days.

September Precipitation Trends in Glenville

The chart displays monthly precipitation patterns in Glenville, 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 Glenville, September typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 9 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 Glenville

In Glenville in September, humidity is 73%. With an average temperature of 21°C (69°F), this humidity feels like a warm, sticky embrace, making outdoor activities somewhat stifling and travel a bit more challenging, as the air is dense and can leave you feeling fatigued more quickly.

September Average Humidity in Glenville

This chart illustrates the average monthly humidity levels in Glenville, 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 Glenville is approximately 73%, 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 Glenville

In Glenville in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Glenville.

Maximum UV Index Levels in Glenville for September

The chart shows the monthly maximum UV Index (UVI) for Glenville 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 Glenville typically reaches 8, which falls under the very high exposure category.

Data source: Glenville 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 Glenville Compares to Other Months

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

This table compares monthly weather conditions in Glenville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	99 mm (3.9 inches)	88%	moderate
February Weather	4°C (40°F)	148 mm (5.8 inches)	88%	moderate
March Weather	8°C (46°F)	118 mm (4.6 inches)	88%	high
April Weather	13°C (55°F)	142 mm (5.6 inches)	86%	very high
May Weather	18°C (65°F)	162 mm (6.4 inches)	82%	very high
June Weather	22°C (71°F)	170 mm (6.7 inches)	84%	very high
July Weather	24°C (76°F)	132 mm (5.2 inches)	82%	very high
August Weather	23°C (74°F)	124 mm (4.9 inches)	73%	very high
September Weather	21°C (69°F)	107 mm (4.2 inches)	73%	very high
October Weather	15°C (60°F)	115 mm (4.5 inches)	81%	high
November Weather	7°C (45°F)	83 mm (3.3 inches)	89%	moderate
December Weather	4°C (40°F)	126 mm (5.0 inches)	86%	moderate