September Weather in Clymer, United States

Last updated: June 24, 2025

In September, the average temperature in Clymer, United States hovers around 18°C (65°F), with a possible minimum dipping to 3°C (37°F) and peaking at a warm 32°C (89°F). Expect around 125 mm (4.9 in) of precipitation spread over 10 days, contributing to an average humidity of 67%. Stay prepared for a pleasant blend of warmth and refreshing rains!

September Temperature in Clymer

In September in Clymer, the average temperature is 18°C (65°F). Maximums can reach 32°C (89°F) and minimums can be as low as 3°C (37°F). This variation makes Clymer an ideal destination for travelers who enjoy diverse weather conditions and outdoor activities.

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

The chart illustrates September temperature patterns in Clymer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Clymer, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (89°F) and lows dropping to around 3°C (37°F).

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

September Precipitation in Clymer

In Clymer in September, the precipitation amount is 125 mm (4.9 in) spread over a period of 10 days.

September Precipitation Trends in Clymer

The chart displays monthly precipitation patterns in Clymer, 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 Clymer, September typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 10 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 Clymer

In Clymer in September humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.

September Average Humidity in Clymer

This chart illustrates the average monthly humidity levels in Clymer, 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 Clymer is approximately 67%, 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 Clymer

In Clymer 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 Clymer.

Maximum UV Index Levels in Clymer for September

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

Data source: Clymer 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 Clymer Compares to Other Months

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

This table compares monthly weather conditions in Clymer, 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 (29°F)	95 mm (3.8 inches)	89%	moderate
February Weather	0°C (33°F)	127 mm (5.0 inches)	90%	moderate
March Weather	4°C (39°F)	107 mm (4.2 inches)	89%	high
April Weather	10°C (49°F)	131 mm (5.2 inches)	88%	very high
May Weather	16°C (60°F)	153 mm (6.0 inches)	80%	very high
June Weather	20°C (68°F)	126 mm (5.0 inches)	79%	very high
July Weather	23°C (73°F)	128 mm (5.0 inches)	74%	very high
August Weather	22°C (71°F)	89 mm (3.5 inches)	64%	very high
September Weather	18°C (65°F)	125 mm (4.9 inches)	67%	very high
October Weather	13°C (55°F)	115 mm (4.5 inches)	81%	high
November Weather	4°C (40°F)	94 mm (3.7 inches)	89%	moderate
December Weather	1°C (35°F)	107 mm (4.2 inches)	88%	low