Pollen count and allergy info for Denver

Denver pollen and allergy report

Last update at (local time)

Today's Pollen Count in Denver

Pollen types
Tree pollenModerate
Grass pollenLow
Weed pollenLow

Air quality

Air quality of Denver today

PM2.5 µg/m³Good
PM10 µg/m³Good
See air quality

Allergy forecast

Denver pollen count forecast

DayIndex Tree Grass Weed WindWeatherTemperature
Wind rotating 85 degree 4.5 mp/h
Weather icon
60.8° 39.2°
Friday, Mar 1
Wind rotating 213 degree 20.1 mp/h
Weather icon
64.4° 41°
Saturday, Mar 2
Wind rotating 213 degree 24.6 mp/h
Weather icon 40%
57.2° 37.4°

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Why does the Denver pollen count vary throughout the day?

There are several factors that affect the pollen count throughout the day, such as the type of pollen, the weather conditions, the wind speed, and the location. According to some sources, each plant species releases its pollen at a different time of year, but spring and fall tend to have the highest concentrations. Some plants pollinate year-round. Plants benefit when they spread their pollen efficiently, so many plants have developed flowers that are highly effective at spreading pollen in the wind. Often, the windiest part of the day is also the time of day with the highest pollen count.

Pollen counts usually rise in the morning and reach their peak by midday or early afternoon. This is the time of day that allergies are often the worst, since there is a high concentration of pollen in the air. The release of pollen also depends on the species of plant or tree, so if you’re allergic to a certain type of pollen, you may notice symptoms peak at different times. Weather and environmental factors also influence the pollen count throughout the day. Wind stirs up pollen into the air, keeping counts high, while rain lowers airborne pollen any time of day.

In many areas, even in peak pollen season, the pollen count will drop to zero just before sunrise because the air has stopped moving and the pollen has settled on the ground. On the other hand, extended periods of calm air can lead to low pollen levels. Rain can wash pollen out of the air and provide temporary relief, and frosts in autumn can also kill the weeds that disperse pollen and can end certain pollen seasons.

What are the main areas of vegetation that contribute to an elevated pollen count in Denver?

In Denver, there are several main areas of vegetation that contribute to an elevated pollen count.

Various tree species release pollen and contribute to a higher pollen count. Common tree species in Denver that produce significant amounts of pollen include oak, maple, pine, juniper, cedar, and birch. These trees typically release their pollen in the spring and early summer.

Grasses are another significant source of pollen in Denver. Common grasses that contribute to high pollen counts in the area include Bermuda grass, Timothy grass, Kentucky bluegrass, and ryegrass. Grass pollen levels tend to be highest in late spring and early summer.

Certain weed species release abundant pollen and can cause allergies in susceptible individuals. Weeds such as ragweed, sagebrush, lamb's quarters, pigweed, and Russian thistle are commonly found in and around Denver and can contribute to elevated pollen levels, particularly in late summer and early autumn.

It's important to note that the specific pollen levels can vary from year to year depending on factors such as weather conditions, plant growth cycles, and other environmental factors. Additionally, individual sensitivities to different types of pollen can vary, so people may have different allergic reactions to various plant species.

Does tree pollen significantly add to the pollen count in Denver?

There are several common tree species that contribute to elevated pollen counts, particularly during the spring and early summer seasons. These trees include oak, maple, pine, juniper, cedar, and birch.

Oak trees are prevalent in Denver and release significant amounts of pollen. There are different types of oak trees, such as red oak and white oak, and they produce an exceedingly large amount of pollen during their flowering period. Oak pollen can be a common allergen which affects many individuals.

Maple trees, which include silver maple, red maple, and boxelder, also contribute to the pollen count in the region. While they are known for their vibrant autumn foliage, they release pollen in the spring. The wind-dispersed pollen from maple trees causes allergies in susceptible individuals.

Pine trees are evergreens and are commonly found in Denver, and while they don't have showy flowers, they produce significant amounts of pollen. Pine pollen is typically released in large quantities during spring, leading to elevated pollen levels in the surrounding areas.

Juniper trees, such as Rocky Mountain juniper and Utah juniper, are native to the Denver region. These trees produce pollen that is often dispersed by the wind. Juniper pollen is a common allergen, contributing to the overall pollen count.

Cedar trees, particularly the Rocky Mountain juniper, are known to produce considerable amounts of pollen. Their small and lightweight pollen grains are easily airborne, contributing to the pollen count in Denver. Individuals with cedar allergies may experience symptoms during the tree's pollen release.

Birch trees, with their distinctive catkins containing male flowers, also contribute to the pollen count in Denver. Birch pollen is a known allergen and can cause allergic reactions in susceptible individuals.

These tree species collectively contribute to the pollen count in Denver, and their pollen release can cause seasonal allergies for people sensitive to tree pollen. It's important for individuals with allergies to be aware of the pollen levels and take appropriate measures to manage their symptoms during the peak pollen seasons.

What can be done to alleviate the symptoms brought on by a high pollen count in Denver?

To alleviate the symptoms brought on by a high pollen count in Denver, here are some strategies to consider.

Be aware of the daily pollen levels with the 24-hour forecast on the IQAir website. Limit your time outdoors, especially during peak pollen times such as early mornings and windy days.

Keep windows closed at home and use air conditioning or HEPA filters to help reduce the indoor pollen levels. Create a pollen-free zone by designating certain areas of your home, such as the bedroom.

Taking a shower and washing your hair after spending time outdoors will remove pollen from your body and hair. Change your clothes and avoid drying laundry outside, because pollen can cling to fabrics.

Use over-the-counter antihistamines, nasal sprays, and eye drops to temporarily relieve allergy symptoms. Consult with a doctor for the best options for your specific symptoms.

Wear sunglasses and a wide-brimmed hat to protect your eyes and face from pollen when outdoors and use a pollen mask to cover your nose and mouth when necessary.

Keep indoor air clean by using a vacuum cleaner with a HEPA filter and regularly dusting surfaces with a damp cloth to prevent the pollen from rising into the air. Wash bedding frequently to reduce pollen that might become stuck to it.

Consider allergen immunotherapy sublingual tablets for long-term management of severe allergies.

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