Provo, UT Pollen Levels Today

Nestled in a semi-arid valley between the Wasatch Mountains and Utah Lake, Provo experiences a pronounced allergy season shaped by dry air, temperature inversions, and wind patterns that concentrate airborne particles along the valley floor.

Tree pollen kicks off the year in early spring, typically from March through May, with juniper and cedar producing heavy early loads, followed by box elder, cottonwood, poplar, maple, ash, and mulberry as temperatures climb.

Grass pollen takes over from late May through July, dominated by Kentucky bluegrass, timothy, orchard grass, and Bermuda grass, all widely planted in local lawns and irrigated fields.

By August, weed pollen becomes the primary driver, with sagebrush, Russian thistle (tumbleweed), kochia, pigweed, lamb's quarters, and ragweed persisting through the first hard frost in October.

Overlapping tree and grass seasons in May, along with grass and weed crossover in late summer, can intensify symptoms for multi-sensitive individuals.

Beyond pollen, Provo residents contend with significant dust from surrounding desert terrain, mold spores from irrigated agriculture and lakeshore vegetation, and wintertime PM2.5 pollution trapped by valley inversions.

Overall, Provo's allergy profile is defined by a long, layered pollen calendar amplified by dry, dusty air and inversion-driven particulate buildup.