
Ornamental pear
Pyrus calleryana
Very low today, mostly grass pollen.
Last updated July 21, 2026
Pollen levels in Stockton are quiet today. Tree pollen is essentially absent, and grass pollen is running very low, so most people should notice little to no irritation outdoors. Overall, this is a calm stretch for allergy sufferers in the area. Looking ahead, grass pollen is expected to hold steady at a similarly low level over the next several days, with no significant increase in sight. Tree pollen should remain minimal as well, which fits the season — trees like liriodendron, pistacia, crape myrtle, privet, and sweetgum typically finish their pollen release earlier in the year, well before midsummer. With grass activity already tapering and weed season still weeks away, conditions should stay mild and manageable for now.
Every dot is a tree near Stockton, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.
The local tree genera behind today's pollen near Stockton. Each bar is that genus's share of the tree pollen.
5,874 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Stockton: what each looks like, how allergenic it is, and when it blooms.

Ornamental pear
Pyrus calleryana

Chinese hackberry
Celtis sinensis

London plane tree
Platanus acerifolia

Maidenhair tree
Ginkgo biloba

Red maple
Acer rubrum

Leaf plum purple
Prunus cerasifera

American sweetgum
Liquidambar styraciflua

Leaf zelkova saw
Zelkova serrata

Raywood ash
Fraxinus oxycarpa

Leaf linden little
Tilia cordata

Holly oak
Quercus ilex

White birch
Betula pendula

Italian cypress
Cupressus sempervirens

Scarlet oak
Quercus coccinea

Red oak
Quercus rubra

Evergreen pear
Pyrus kawakamii