nomadseason

September Weather in Lacolle, Canada

Last updated: June 18, 2025

In September, the average temperature in Lacolle, Canada hovers around 17°C (62°F), with a comfortable range between a cool 2°C (36°F) and a warm 31°C (88°F). Expect 73 mm (2.9 in) of precipitation spread over about 10 days, contributing to an average humidity of 78%. Embrace the pleasant yet variable climate this month brings!

September Temperature in Lacolle

In September in Lacolle, the average temperature is 17°C (62°F). The maximum can reach 31°C (88°F), while the minimum can drop as low as 2°C (36°F). Be sure to pack layers to comfortably enjoy all that Lacolle has to offer during this time!

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

The chart illustrates September temperature patterns in Lacolle, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lacolle, September typically has an average temperature of 17°C (62°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec202230435666727062513627
Data source: Temperature data for Lacolle generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Lacolle

In Lacolle in September, the precipitation amount is 73 mm (2.9 in) over the course of 10 days.

September Precipitation Trends in Lacolle

The chart displays monthly precipitation patterns in Lacolle, 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 Lacolle, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec817878109911051121067314311677
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Lacolle

In Lacolle in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

September Average Humidity in Lacolle

This chart illustrates the average monthly humidity levels in Lacolle, 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 Lacolle is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lacolle

In Lacolle 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 Lacolle.

Maximum UV Index Levels in Lacolle for September

The chart shows the monthly maximum UV Index (UVI) for Lacolle 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 Lacolle typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Lacolle 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 Lacolle Compares to Other Months

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

This table compares monthly weather conditions in Lacolle, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (20°F)81 mm (3.2 inches)93%low
February Weather-5°C (23°F)78 mm (3.1 inches)92%moderate
March Weather-1°C (30°F)78 mm (3.1 inches)86%moderate
April Weather6°C (43°F)109 mm (4.3 inches)85%high
May Weather13°C (56°F)91 mm (3.6 inches)80%very high
June Weather19°C (66°F)105 mm (4.1 inches)74%very high
July Weather22°C (72°F)112 mm (4.4 inches)76%very high
August Weather21°C (70°F)106 mm (4.2 inches)75%very high
September Weather17°C (62°F)73 mm (2.9 inches)78%high
October Weather11°C (51°F)143 mm (5.6 inches)86%moderate
November Weather2°C (37°F)116 mm (4.6 inches)88%moderate
December Weather-3°C (27°F)77 mm (3.0 inches)89%low

Compare Lacolle's Climate with Cities Worldwide