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September Weather in Granite, United States

Last updated: June 24, 2025

In September, the average temperature in Granite, United States reaches a pleasant 24°C (75°F). Visitors can expect a minimum temperature of 7°C (45°F) and occasional highs of 37°C (99°F). During this month, the area experiences approximately 72 mm (2.8 in) of precipitation spread over 6 days, coupled with an average humidity of 64%. Perfect for planning your outdoor adventures!

September Temperature in Granite

In September in Granite, the average temperature is 24°C (75°F), with maximums reaching 37°C (99°F) and minimums dropping as low as 7°C (45°F). This variability makes it an ideal time for travelers to experience a range of outdoor activities, from enjoying warm days to cooler evenings.

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

The chart illustrates September temperature patterns in Granite, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Granite, September typically has an average temperature of 24°C (75°F), with highs reaching up to 37°C (99°F) and lows dropping to around 7°C (45°F).
JanFebMarAprMayJunJulAugSepOctNovDec394153607079838275615043
Data source: Temperature data for Granite generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Granite

In Granite in September, the total precipitation amount is 72 mm (2.8 in) over the course of 6 days.

September Precipitation Trends in Granite

The chart displays monthly precipitation patterns in Granite, 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 Granite, September typically receives around 72 mm (2.8 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec3524677512872353672751726
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Granite

In Granite 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 Granite

This chart illustrates the average monthly humidity levels in Granite, 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 Granite is approximately 64%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%70%72%82%82%80%72%64%71%81%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Granite

In Granite in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Granite.

Maximum UV Index Levels in Granite for September

The chart shows the monthly maximum UV Index (UVI) for Granite 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 Granite typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110754
Data source: Granite 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 Granite Compares to Other Months

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

This table compares monthly weather conditions in Granite, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)35 mm (1.4 inches)76%moderate
February Weather5°C (41°F)24 mm (0.9 inches)76%high
March Weather12°C (54°F)67 mm (2.6 inches)70%very high
April Weather15°C (60°F)75 mm (2.9 inches)72%very high
May Weather21°C (70°F)128 mm (5.0 inches)82%extreme
June Weather26°C (79°F)72 mm (2.8 inches)82%extreme
July Weather28°C (83°F)35 mm (1.4 inches)80%extreme
August Weather28°C (82°F)36 mm (1.4 inches)72%extreme
September Weather24°C (75°F)72 mm (2.8 inches)64%very high
October Weather16°C (62°F)75 mm (3.0 inches)71%high
November Weather10°C (50°F)17 mm (0.7 inches)81%moderate
December Weather6°C (44°F)26 mm (1.0 inches)84%moderate

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