Tree Pollen Count in Perry Hall, MD

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Perry Hall — from Friday, November 6, 2026 (1 day ago) — not today's reading.

This reading is the forecast point shared with Essex, MD — 8 nearby places use the same point; Perry Hall is 12 km from it.

Pollen by type in Perry Hall

What is the tree pollen count in Perry Hall today?

The Perry Hall tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Perry Hall’s overall pollen count today is 10 (Low) across all types. See the full Perry Hall pollen count for the overall index and every type together.

Perry Hall is a census-designated place in Baltimore County, Maryland. Its population is 28,908 (ACS 2023).

Perry Hall Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 610Low
Saturday, November 716Low
Sunday, November 816Low
Monday, November 916Low
Tuesday, November 1015Low

Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Perry Hall’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Perry Hall’s tree pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Perry Hall now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Perry Hall. The type summary stands: tree pollen reads 0.6 (Low) today.

In the Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring grasses and late-summer ragweed — named here as regional context only, not as today’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this tree pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Trees open in late March and build to an oak-led peak in May. This month sits outside the usual tree pollen window for the Northeast pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Maryland allergy season guide singles out oak, the mid-Atlantic heavyweight, peaking hard in late April and May.

Perry Hall allergies today

Perry Hall allergies today are set by the same reading as the Perry Hall pollen count today: the Total Pollen Index is 10 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Perry Hall allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Perry Hall.

Allergies in Perry Hall follow the Maryland calendar set out on the full Perry Hall page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Perry Hall before heading outdoors, the tree pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.

Read the five-day overall trend above as the Perry Hall allergy forecast for the tree pollen season: it shows whether Perry Hall allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.

See the full Perry Hall pollen count — all types, the overall index and today’s ranking context

Perry Hall grass pollen count

Perry Hall ragweed pollen count

See how Perry Hall ranks in today's pollen count rankings — the worst cities for allergies today

See Perry Hall on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Maryland allergy season guide

Tree pollen season

Find an allergist in Perry Hall, MD

Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).