September Weather in Garretson, United States

Last updated: June 24, 2025

In September, the average temperature in Garretson, United States is a comfortable 18°C (65°F), with a variation that can dip as low as 3°C (37°F) and soar up to 32°C (90°F). During this month, expect approximately 109 mm (4.3 in) of precipitation spread across 8 days, contributing to an average humidity level of 75%.

September Temperature in Garretson

In September in Garretson, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 32°C (90°F), while the minimum can drop as low as 3°C (37°F). This varying climate makes it essential for travelers to pack for both warm and cool conditions.

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

The chart illustrates September temperature patterns in Garretson, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Garretson, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (37°F).

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

September Precipitation in Garretson

In Garretson in September, the total precipitation amount is 109 mm (4.3 in) spread over 8 days.

September Precipitation Trends in Garretson

The chart displays monthly precipitation patterns in Garretson, 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 Garretson, September typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 8 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 Garretson

In Garretson in September, humidity is 75%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket that can make outdoor exploration feel a bit stifling, potentially leading to discomfort during travel activities.

September Average Humidity in Garretson

This chart illustrates the average monthly humidity levels in Garretson, 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 Garretson is approximately 75%, 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 Garretson

In Garretson 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 Garretson.

Maximum UV Index Levels in Garretson for September

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

Data source: Garretson 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 Garretson Compares to Other Months

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

This table compares monthly weather conditions in Garretson, 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 (19°F)	22 mm (0.9 inches)	80%	low
February Weather	-8°C (19°F)	24 mm (0.9 inches)	84%	moderate
March Weather	1°C (34°F)	61 mm (2.4 inches)	75%	moderate
April Weather	6°C (44°F)	74 mm (2.9 inches)	79%	very high
May Weather	15°C (58°F)	121 mm (4.8 inches)	74%	very high
June Weather	22°C (72°F)	94 mm (3.7 inches)	81%	extreme
July Weather	23°C (74°F)	91 mm (3.6 inches)	82%	very high
August Weather	21°C (71°F)	102 mm (4.0 inches)	80%	very high
September Weather	18°C (65°F)	109 mm (4.3 inches)	75%	very high
October Weather	8°C (48°F)	80 mm (3.2 inches)	77%	moderate
November Weather	1°C (34°F)	26 mm (1.0 inches)	85%	moderate
December Weather	-4°C (26°F)	37 mm (1.5 inches)	83%	moderate