September Weather in Grant, United States

Last updated: June 24, 2025

In September, the average temperature in Grant, United States hovers around 24°C (75°F). You'll experience a comfortable range, with minimums dipping to 11°C (51°F) and maximums soaring to 36°C (96°F). Be prepared for some rain, as 116 mm (4.6 in) of precipitation is expected over 8 days. With an average humidity of 64%, it’s the perfect blend of warmth and moisture for your stay!

September Temperature in Grant

In September in Grant, the average temperature is 24°C (75°F). Maximums can reach 36°C (96°F) and minimums can be as low as 11°C (51°F). It's an ideal time for travelers to enjoy a mix of warm days and cooler evenings.

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

The chart illustrates September temperature patterns in Grant, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grant, September typically has an average temperature of 24°C (75°F), with highs reaching up to 36°C (96°F) and lows dropping to around 11°C (51°F).

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

September Precipitation in Grant

In Grant in September, the total precipitation amount is 116 mm (4.6 in) recorded over a span of 8 days.

September Precipitation Trends in Grant

The chart displays monthly precipitation patterns in Grant, 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 Grant, September typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 8 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 Grant

In Grant in September humidity is 64%. With average temperature 24°C (75°F), this humidity feels like a warm blanket enveloping you, making outdoor exploration both refreshing and a little sticky, perfect for leisurely strolls and shaded cafes but with a need for frequent water breaks.

September Average Humidity in Grant

This chart illustrates the average monthly humidity levels in Grant, 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 Grant is approximately 64%, 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 Grant

In Grant 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 Grant.

Maximum UV Index Levels in Grant for September

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

Data source: Grant 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 Grant Compares to Other Months

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

This table compares monthly weather conditions in Grant, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (44°F)	114 mm (4.5 inches)	87%	moderate
February Weather	9°C (49°F)	184 mm (7.3 inches)	87%	high
March Weather	13°C (55°F)	205 mm (8.1 inches)	85%	very high
April Weather	16°C (61°F)	150 mm (5.9 inches)	82%	very high
May Weather	21°C (71°F)	100 mm (3.9 inches)	83%	extreme
June Weather	25°C (76°F)	136 mm (5.4 inches)	82%	extreme
July Weather	26°C (80°F)	123 mm (4.8 inches)	78%	extreme
August Weather	26°C (79°F)	119 mm (4.7 inches)	67%	extreme
September Weather	24°C (75°F)	116 mm (4.6 inches)	64%	very high
October Weather	19°C (66°F)	132 mm (5.2 inches)	74%	high
November Weather	11°C (51°F)	77 mm (3.0 inches)	87%	high
December Weather	9°C (48°F)	158 mm (6.2 inches)	88%	moderate