03/23/2026
If your spring allergies feel worse in Northern California, there’s a reason.
Mild winters.
Winter rains boost plant growth.
High pollen-producing trees.
Wind spreads pollen easily.
Agricultural exposure increases overall pollen levels.
In the East Bay, allergy season often overlaps — meaning symptoms can last for months.
If allergies are disrupting daily life, it may be time to review your treatment options with a medical provider.