September Weather in North Branch, United States

Last updated: June 24, 2025

In September, the average temperature in North Branch, United States hovers around 17°C (63°F), offering a pleasant climate. While daily temps can dip as low as 1°C (34°F), they can peak at a warm 32°C (90°F). Be prepared for occasional rain, with an average precipitation of 105 mm (4.1 in) spread over 9 days. With an average humidity level of 81%, it's a month where you might want to keep that umbrella handy!

September Temperature in North Branch

In September in North Branch, the average temperature is 17°C (63°F). Maximums can reach 32°C (90°F), while minimums can drop as low as 1°C (34°F). Be prepared for a range of temperatures during your travels.

September Weather in North Branch: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in North Branch, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In North Branch, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (34°F).

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

September Precipitation in North Branch

In North Branch in September, the total precipitation amount reaches 105 mm (4.1 in) over the course of 9 days.

September Precipitation Trends in North Branch

The chart displays monthly precipitation patterns in North Branch, 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 North Branch, September typically receives around 105 mm (4.1 inches) of precipitation spread over approximately 9 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 North Branch

In North Branch in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in North Branch

This chart illustrates the average monthly humidity levels in North Branch, 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 North Branch is approximately 81%, 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 North Branch

In North Branch in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in North Branch.

Maximum UV Index Levels in North Branch for September

The chart shows the monthly maximum UV Index (UVI) for North Branch 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 North Branch typically reaches 7, which falls under the high exposure category.

Data source: North Branch 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 North Branch Compares to Other Months

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

This table compares monthly weather conditions in North Branch, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (16°F)	21 mm (0.8 inches)	87%	low
February Weather	-9°C (16°F)	32 mm (1.2 inches)	90%	moderate
March Weather	0°C (32°F)	50 mm (2.0 inches)	85%	moderate
April Weather	6°C (43°F)	90 mm (3.6 inches)	84%	high
May Weather	15°C (58°F)	111 mm (4.4 inches)	78%	very high
June Weather	21°C (70°F)	80 mm (3.1 inches)	80%	very high
July Weather	23°C (74°F)	105 mm (4.1 inches)	81%	very high
August Weather	21°C (70°F)	131 mm (5.2 inches)	81%	very high
September Weather	17°C (63°F)	105 mm (4.1 inches)	81%	high
October Weather	9°C (48°F)	104 mm (4.1 inches)	84%	moderate
November Weather	0°C (32°F)	37 mm (1.4 inches)	88%	moderate
December Weather	-6°C (22°F)	51 mm (2.0 inches)	84%	low