Common Summer Allergens in the Central Valley Area of California 

Baz Team

June 29, 2025

Allergies

Summer allergies in California

Summer in California’s Central Valley is a season of sun-soaked weekends, family barbecues, and long days outdoors—but for many, it also means itchy eyes, sneezing fits, and constant congestion. You’re not alone if you’ve noticed your allergy symptoms kicking into high gear between June and August. Central Valley residents face a unique mix of allergens during the summer months, and understanding what’s in the air can be the first step toward finding real relief. 

What Triggers Summer Allergies in the Central Valley? 

While spring allergies often get the spotlight, summer brings its own wave of triggers. Here’s what’s floating around during the hotter months: 

  1. Grasses

Grasses are one of the biggest culprits in summer allergies, and in the Central Valley, we have plenty of native rye and bluegrass. This lightweight, aggressive pollen travels far, often peaking between May and July. 

Symptoms of grass pollen allergies include: 

  • Sneezing fits 
  • Nasal congestion 
  • Itchy, watery eyes 
  • Scratchy throat or postnasal drip 
  1. Dust Mites

Dust mites thrive in the summer due to our warm weather combined with indoor humidity. These microscopic creatures aren’t airborne themselves, but their waste particles are (we know, ewww!), which causes allergic reactions. 

If you wake up stuffy or with itchy eyes, you might react to dust mites in your bedding, upholstery, or carpet. 

  1. Poor Air Quality & Pollution

The Central Valley is known for its beautiful farms and vineyards, but also trapped air pollution due to its bowl-like geography. Ozone, wildfire smoke, and agricultural dust can worsen allergic reactions and asthma during summer. 

Why Are Summer Allergies Worse in the Central Valley? 

The Central Valley’s geography and agriculture make it a hotspot for airborne allergens. During summer: 

  • High temperatures kick grass pollen into overdrive. 
  • Dry winds stir up dust and mold spores. 
  • Smog and wildfire smoke trap irritants in the air longer. 
  • Irrigation and farming practices spread allergens like weed pollen and agricultural dust. 

It’s no wonder summer allergies in California feel especially intense here, right? We can help, though! 

How to Find Relief: Allergy Prevention Tips That Work 

Living in the Central Valley doesn’t mean suffering all summer. Here are some simple, science-backed ways to reduce exposure and ease symptoms. 

Inside Your Home 

  • Vacuum with a HEPA filter at least twice a week 
  • Wash bedding weekly 
  • Keep humidity levels below 50% to reduce dust mites 
  • Shower and change clothes after coming inside from outdoor activities

Outside Activities 

  • Avoid outdoor workouts in the morning when pollen counts are highest 
  • Wear sunglasses and a hat to protect your eyes and hair from pollen 
  • Keep windows closed on high-pollen days

When to Seek Medical Help 

If you’ve tried over-the-counter allergy medications, home air filters, and prevention tips but you’re still struggling, it might be time to get professional help. At Baz Allergy, we offer: 

  • Allergy testing to pinpoint your specific triggers 
  • Customized treatment plans, including immunotherapy 

Explore more details on local triggers: Central Valley Allergens 101. 

Summer Allergies Are Manageable 

Yes, California summer allergies can be relentless, but you don’t have to suffer in silence. With the proper knowledge, tools, and expert support, you can enjoy your summer without the constant sneezing and sniffling. 

And remember, you’re not alone. Baz Allergy is here to help residents across Fresno, Clovis, Modesto, and beyond breathe easier, even during peak allergy season 

This entry was posted in Allergies on June 29, 2025 by Baz Team.

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