Pollen Count Las Vegas — What You Need to Know
The pollen count in Las Vegas peaks in March–October. Despite low humidity, the Southwest sees heavy pollen from mulberry, olive, and native desert plants.
Why Is Pollen High in Las Vegas?
The primary allergen is Mulberry — mulberry trees are prolific pollinators and a major trigger of allergies in warm, dry climates. Pollen spikes on warm, dry, and windy days. Rain temporarily clears the air, but counts rebound fast.
Pollen Season in Las Vegas
- Tree pollen — starts in late winter, peaks April–May. Birch, oak, and cedar are the biggest triggers.
- Grass pollen — peaks spring. Affects over 40 million Americans.
- Ragweed — August through October. One plant releases a billion grains per season.
Frequently Asked Questions
What is the pollen count in Las Vegas today?
The current pollen count in Las Vegas is updated every 12 hours using live data. Levels are rated Low, Moderate, High, or Very High based on pollen concentration in the air. Select the live badge above for today's reading.
What type of pollen is high in Las Vegas right now?
The primary allergen in Las Vegas is Mulberry. Peak pollen season in Las Vegas runs from March–October. The 'Active Allergens' section above shows which specific pollens are currently elevated.
When is pollen season in Las Vegas?
Pollen season in Las Vegas typically peaks in March–October. Tree pollen starts in late winter, followed by grass pollen in late spring through summer, and ragweed from August through October.
What should I do when pollen is high in Las Vegas?
On high pollen days in Las Vegas: check the forecast before going outside, schedule outdoor activities for the afternoon (pollen peaks 5–10 AM), keep windows closed and use AC, take antihistamines before exposure rather than after symptoms start, and shower after spending time outdoors to remove pollen from skin and hair.
How accurate is the pollen forecast for Las Vegas?
The pollen forecast for Las Vegas is based on the Google Pollen API, which combines real-time sensor data, weather forecasts, and plant biology models. Forecasts are updated every 12 hours and are generally accurate within 1 level (e.g., Moderate vs. High). Actual counts can vary by neighborhood depending on local vegetation.