What's the average time for Canada wildfires' smoke to affect NYC air quality?

Asked on: 7/27/2025

This question has been asked1times.

Smoke from Canadian wildfires typically reaches NYC within 1 to 3 days, depending on wind patterns.

Estimated Duration: 2 days

The time it takes for wildfire smoke from Canada to affect New York City's air quality depends on atmospheric conditions, particularly wind speed and direction. Under typical conditions, smoke particles can travel hundreds of miles in 24-72 hours. Jet stream patterns often carry smoke southward from Canadian wildfires, with the fastest transport occurring during strong, consistent wind currents. Monitoring air quality indexes and satellite imagery can help predict when smoke will arrive. The impact duration varies based on fire intensity and weather systems, but noticeable air quality degradation usually lasts several days once the smoke plume arrives.