Pierce, CO Pollen Count

What is the Pierce pollen count today?

The Pierce pollen count today is 26 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

Short answer for anyone searching pollen count today Pierce: this page is updated every morning with the day’s modelled reading.

Pierce allergies today

Pierce allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 26 (Low), driven mainly by Ragweed. When people ask about Pierce allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Pierce.

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

Read the five-day table on this page as the Pierce allergy forecast: today reads 26 (Low), and the day-by-day outlook shows whether Pierce allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.

In practice, the allergy count Pierce today records is this same combined reading — tree, grass, weed and mold in one index.

The Pierce allergy count today is 26 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Pierce: the 5-day forecast

Pollen Atlas forecasts Pierce’s pollen count to peak on Friday at 26 (Low) over the next 5 days.

Pollen by type in Pierce

• Pierce tree pollen count
• Pierce grass pollen count
• Pierce ragweed pollen count

What is driving Pierce’s pollen today

The shape of today’s 26 (Low) is set by weed pollen at 34 (Low on its own scale) — about 97% of the four category readings added together, 33.4 points clear of the next category, tree pollen at 0.6. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the Colorado weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.

Plant-level detail is not in today’s feed for Pierce, so the drivers have to be read from the category split above. The Colorado guide’s account of Colorado names juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.

Across the five-day window the Total Pollen Index runs from 25 to 26, never changing band. Today’s 26 sits 1 point above the window’s average of 25.4 — a steady window, in which one day reads much like the next.

Plants affecting Pierce now

Detailed plant-by-plant readings for Pierce were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.

Tree pollen is one of the categories with a non-zero reading today, at 0.6 (Low).

Grass pollen is one of the categories with a non-zero reading today, at 0.6 (Low).

Weed pollen is one of the categories with a non-zero reading today, at 34 (Low).

In the Mountain West pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in a compressed warm-season window — named here as regional context only, not as today\u2019s measurements.

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

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

Pierce pollen through the year

Three chapters make the Colorado pollen year, and Pierce follows them in the Mountain West order. The tree chapter: juniper can arrive in late winter, and the main tree wave builds in spring — as late as April at Denver’s altitude. The grass chapter: grasses follow in a compressed early-summer run. The weed chapter: ragweed and sagebrush-family weeds close the year from late summer.

Altitude compresses Colorado’s season rather than removing it: the waves arrive late — Denver’s tree pollen typically builds in April — and end with early frosts, but they run in a tight sequence. The season ends with the first hard frosts, which stop the late-summer weeds — Denver usually reaches frost in fall, while mountain towns can frost far earlier. The Colorado guide singles out juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of late summer.

November falls between the main chapters of the Colorado pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 9 months of the Colorado year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. The full calendar is set out in the Colorado allergy season guide.

How to read this index

Pollen Atlas reports the Pierce pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down whatever the month. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.

Pierce in today’s national picture

At 26 (Low), Pierce ranks joint 32701st of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.

Around Pierce: Ault, CO (5 miles away) reads 28 (Low); Nunn, CO (5 miles away) reads 24 (Low); Eaton, CO (9 miles away) reads 28 (Low). Pierce reads 2 points lower than its nearest tracked neighbour today. Across Colorado’s 479 tracked cities, today runs from 5 in Parker to 32 in Dillon.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Pierce resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Pierce, CO can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.

Pierce in its local area

Across Colorado’s 479 tracked cities, Pierce ranks joint 70th today.

Like every Pollen Atlas city page, the Pierce, CO pollen count is refreshed each morning.

Nearby cities

• Ault pollen count (5 miles away)
• Nunn pollen count (5 miles away)
• Eaton pollen count (9 miles away)
• Severance pollen count (11 miles away)
• Wellington pollen count (12 miles away)
• Timnath pollen count (12 miles away)

From Pollen Atlas News

• Colorado allergy season
• Ragweed season