January

Moderate: African sumac, ash, juniper-cypress, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, Johnson grass smut, stemphylium.

February

Peaking: African sumac, ash, mulberry.
Moderate: Grasses, oak, pine, salt cedar, cottonwood, elm, white rust, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, Johnson grass smut, stemphylium.

March

Peaking: Mulberry, pine.
Moderate: Ragweeds, ash, juniper-cypress, oak, cottonwood, elm, white rust, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, Johnson grass smut, stemphylium.

April

Peaking: Grasses, plantain, .ragweeds, bottlebrush, elderberry, juniper-cypress, olive, privet.
Moderate: Ash, mulberry, oak, pine, cottonwood, elm, white rust, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

May

Peaking: Grasses, oak, pecan, paloverde, salt cedar.
Moderate: Ragweeds, elderberry, olive, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

June

Peaking: Eucalyptus.
Moderate: Grasses, ragweeds, elderberry, palm, paloverde, pine, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

July

Peaking: Palm.
Moderate: Grasses, ragweeds, eucalyptus, pine, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphyllum.

August

Moderate: Grasses, ragweeds, salt cedar, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

September

Moderate: Grasses, ragweeds, salt cedar, alternaria, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

October

Peaking: Alder.
Moderate: Grasses, ragweeds, elm, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, stemphylium.

November

Moderate: Grasses, plantain, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, Johnson grass smut, stemphylium.

December

Moderate: Juniper-cypress, aspergillus, leaf mold, black mold, clear mold, powdery mildew, blue-green mold, bread mold, Johnson grass smut, stemphylium.