Pollen Count in City of San Marino
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Friday
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Saturday
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Sunday
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- See our chart for an hourly overview.
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City of San Marino has two main pollen seasons. Spring pollen season usually starts in March and lasts until May. Trees and flowers release pollen into the air.
During spring, oak, beech, and pine trees produce a lot of pollen. This makes the air feel funny. People notice yellow dust on cars and buildings.
Summer pollen season happens in July and August. Grasses and weeds produce pollen. This season can be just as bad as spring for some people.
In San Marino, pollen counts are usually lower in winter. However, some plants produce pollen year-round. This means some people might feel symptoms all year.
Pollen Forecast Chart
Recommendations
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in City of San Marino 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 12.7 | 0 | 0 | 0 | 0 | 0 |
| Feb | 89.3 | 0 | 1.9 | 0 | 0 | 0 |
| Mar | 27.3 | 87.6 | 22.9 | 0 | 0.2 | 0 |
| Apr | 3.3 | 59.4 | 146.4 | 0 | 31.2 | 0 |
| May | 0.1 | 8.4 | 559.9 | 0 | 115.3 | 0 |
| Jun | 0 | 3.7 | 551.6 | 0 | 17 | 0 |
| Jul | 0 | 0.2 | 254.2 | 6.5 | 0.1 | 1.2 |
| Aug | 0 | 0 | 89.3 | 60.6 | 0 | 117.8 |
| Sep | 0 | 0 | 16 | 16.5 | 0 | 58.3 |
| Oct | 0 | 0 | 0.9 | 1.1 | 0 | 0 |
| Nov | 0 | 0 | 0.2 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
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