St. Johns, AZ Pollen Count

What is the St. Johns pollen count today?

The St. Johns pollen count today is 14 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

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

St. Johns allergies today

St. Johns allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 14 (Low), driven mainly by Ragweed. When people ask about St. Johns allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for St. Johns.

Allergies in St. Johns follow the Arizona 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 St. Johns 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 St. Johns allergy forecast: today reads 14 (Low), and the day-by-day outlook shows whether St. Johns 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 St. Johns today records is this same combined reading — tree, grass, weed and mold in one index.

The St. Johns allergy count today is 14 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today St. Johns: the 5-day forecast

Pollen Atlas forecasts St. Johns’s pollen count to peak on Saturday at 20 (Low) over the next 5 days.

Pollen by type in St. Johns

• St. Johns tree pollen count
• St. Johns grass pollen count
• St. Johns ragweed pollen count

What is driving St. Johns’s pollen today

The shape of today’s 14 (Low) is set by weed pollen at 17 (Low on its own scale) — about 75% of the four category readings added together, 12 points clear of the next category, tree pollen at 5. 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 is the Arizona calendar working as expected — November falls in the closing weeks of the state’s weed chapter.

Plant-level detail is not in today’s feed for St. Johns, so the drivers have to be read from the category split above. The Arizona guide’s account of Arizona names mulberry, ash and olive — planted trees, not wild desert flora — 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 14 to 20, never changing band. Today’s 14 sits 4 points below the window’s average of 18.2 — a moving window, worth reading day by day rather than from the average.

Plants affecting St. Johns now

Detailed plant-by-plant readings for St. Johns 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 5 (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 17 (Low).

In the Desert Southwest pattern, the plants that typically shape this city’s year are irrigated landscape trees and grasses, with wind-carried weeds in open ground — 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.

St. Johns pollen through the year

Chapter by chapter, the St. Johns pollen year runs like this:

• Planted trees open in winter — the juniper family and ash first, mulberry at the heart of spring.
• Irrigated Bermuda grass runs long rather than intense, across much of the warm season.
• A final weed wave follows the monsoon rains into fall, with monsoon mold in the same weeks.

The Arizona allergy season guide names mulberry, ash and olive — planted trees, not wild desert flora. Arizona’s season arrives in waves shaped by desert botany and desert weather, with a midsummer heat lull and a mold bump when the monsoon breaks. Phoenix and Tucson often peak weeks apart: Tucson sits at roughly 2,400 feet against Phoenix’s 1,100, and its cooler nights delay its tree wave by a matter of weeks.

November in St. Johns sits in the overlap of the grass and weed chapters of the Arizona year — overlap weeks, when two chapters feed the same total and the split matters more than the headline. Between them, the three chapters cover 11 months of the Arizona year, January to November — a long season by national standards, with only a short quiet gap. The full calendar is set out in the Arizona allergy season guide.

How to read this index

Pollen Atlas reports the St. Johns 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.

St. Johns in today’s national picture

At 14 (Low), St. Johns ranks joint 69664th 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 St. Johns: Concho, AZ (13 miles away) reads 14 (Low); Springerville, AZ (23 miles away) reads 12 (Low); Vernon, AZ (25 miles away) reads 11 (Low). St. Johns reads exactly level with its nearest tracked neighbour today. Across Arizona’s 465 tracked cities, today runs from 5 in Fort Valley to 36 in Rillito.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one St. Johns resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in St. Johns, AZ 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.

St. Johns in its local area

Across Arizona’s 465 tracked cities, St. Johns ranks joint 406th today.

Like every Pollen Atlas city page, the St. Johns, AZ pollen count is refreshed each morning.

Nearby cities

• Concho pollen count (13 miles away)
• Springerville pollen count (23 miles away)
• Vernon pollen count (25 miles away)
• Eagar pollen count (28 miles away)
• Greer pollen count (35 miles away)
• White Mountain Lake pollen count (36 miles away)

From Pollen Atlas News

• Arizona allergy season
• Ragweed season