Berkley, CO Pollen Count

What is the Berkley pollen count today?

The Berkley pollen count today is 22 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

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

Berkley allergies today

Berkley allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 22 (Low), driven mainly by Ragweed. When people ask about Berkley allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Berkley.

Allergies in Berkley 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 Berkley 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 Berkley allergy forecast: today reads 22 (Low), and the day-by-day outlook shows whether Berkley 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 Berkley today records is this same combined reading — tree, grass, weed and mold in one index.

The Berkley allergy count today is 22 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Berkley: the 5-day forecast

Pollen Atlas forecasts Berkley’s pollen count to peak on Friday at 22 (Low) over the next 5 days.

Pollen by type in Berkley

• Berkley tree pollen count
• Berkley grass pollen count
• Berkley ragweed pollen count

What is driving Berkley’s pollen today

The shape of today’s 22 (Low) is set by weed pollen at 28 (Low on its own scale) — about 92% of the four category readings added together, 26 points clear of the next category, tree pollen at 2. 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 Berkley, 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 21 to 22, never changing band. Today’s 22 sits 1 point above the window’s average of 21.2 — a steady window, in which one day reads much like the next.

Plants affecting Berkley now

Detailed plant-by-plant readings for Berkley 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 2 (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 28 (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.

Berkley pollen through the year

Chapter by chapter, the Berkley pollen year runs like this:

• Juniper can arrive in late winter, and the main tree wave builds in spring — as late as April at Denver’s altitude.
• Grasses follow in a compressed early-summer run.
• Ragweed and sagebrush-family weeds close the year from late summer.

The Colorado allergy season guide names juniper, arriving ahead of the local tree season, and the ragweed and sagebrush-family weeds of 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.

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 Berkley 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.

Berkley in today’s national picture

At 22 (Low), Berkley ranks joint 44134th 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 Berkley: Twin Lakes, CO (2 miles away) reads 22 (Low); Lakeside, CO (2 miles away) reads 23 (Low); North Washington, CO (3 miles away) reads 22 (Low). Berkley reads exactly level with 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 Berkley resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Berkley, 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.

Berkley in its local area

Berkley is a census-designated place in Adams County, Colorado. Its population is 10,838 (ACS 2023).

Across Colorado’s 479 tracked cities, Berkley ranks joint 180th today.

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

Nearby cities

• Twin Lakes pollen count (2 miles away)
• Lakeside pollen count (2 miles away)
• North Washington pollen count (3 miles away)
• Sherrelwood pollen count (3 miles away)
• Mountain View pollen count (3 miles away)
• Shaw Heights pollen count (4 miles away)

From Pollen Atlas News

• Colorado allergy season
• Ragweed season