September Weather in Lamar, United States

Last updated: June 24, 2025

In September, the average temperature in Lamar, United States is a warm 27°C (82°F), with minimums dipping to 15°C (59°F) and maximums reaching up to 34°C (94°F). Expect 148 mm (5.8 in) of precipitation spread over 17 days, contributing to an average humidity of 73%. Make sure to pack accordingly!

September Temperature in Lamar

In September in Lamar, the average temperature is 27°C (82°F), with maximums that can reach 34°C (94°F) and minimums as low as 15°C (59°F). This comfortable climate makes Lamar an ideal destination for travelers seeking both warmth and pleasant evenings.

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

The chart illustrates September temperature patterns in Lamar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lamar, September typically has an average temperature of 27°C (82°F), with highs reaching up to 34°C (94°F) and lows dropping to around 15°C (59°F).

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

September Precipitation in Lamar

In Lamar in September, the precipitation amount is 148 mm (5.8 in) spread over 17 days.

September Precipitation Trends in Lamar

The chart displays monthly precipitation patterns in Lamar, 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 Lamar, September typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 17 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 Lamar

In Lamar in September, humidity is 73%. With an average temperature of 27°C (82°F), this humidity feels like you're walking through a warm, thick blanket, making travel feel sticky and requiring frequent breaks to stay refreshed.

September Average Humidity in Lamar

This chart illustrates the average monthly humidity levels in Lamar, 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 Lamar is approximately 73%, 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 Lamar

In Lamar in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Lamar.

Maximum UV Index Levels in Lamar for September

The chart shows the monthly maximum UV Index (UVI) for Lamar 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 Lamar typically reaches 11, which falls under the extreme exposure category.

Data source: Lamar 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 Lamar Compares to Other Months

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

This table compares monthly weather conditions in Lamar, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	14°C (58°F)	42 mm (1.7 inches)	78%	moderate
February Weather	15°C (60°F)	44 mm (1.8 inches)	81%	very high
March Weather	20°C (68°F)	53 mm (2.1 inches)	76%	very high
April Weather	22°C (73°F)	56 mm (2.2 inches)	79%	extreme
May Weather	26°C (79°F)	128 mm (5.0 inches)	79%	extreme
June Weather	28°C (83°F)	139 mm (5.5 inches)	74%	extreme
July Weather	29°C (84°F)	104 mm (4.1 inches)	71%	extreme
August Weather	29°C (85°F)	98 mm (3.8 inches)	68%	extreme
September Weather	27°C (82°F)	148 mm (5.8 inches)	73%	extreme
October Weather	24°C (75°F)	76 mm (3.0 inches)	75%	very high
November Weather	19°C (66°F)	55 mm (2.2 inches)	78%	high
December Weather	16°C (61°F)	55 mm (2.2 inches)	84%	moderate