Best and Worst States for Tree Pollen Allergies Ranked (2023)
Recognizing the profound impact of allergies on one's daily life is crucial. Our meticulously researched rankings cater to individuals seeking relief from tree pollen allergies, as well as those keen on discerning which states pose substantial challenges for residents with tree pollen sensitivities. This vital information addresses the concerns of anyone affected by tree pollen allergies or hay fever.
In this report, Wyndly presents a comprehensive analysis of states across the United States, based on their average tree pollen PPM levels. The objective of this ranking is to guide allergy sufferers in identifying which locations may present increased difficulties during peak pollen season, focusing specifically on tree pollen allergies and hay fever.
What are the Five Best States for Tree Pollen Allergies?
What are the Five Worst States for Tree Pollen Allergies?
States Ranked by Lowest to Highest Tree Pollen Allergies
| State | Low to High PPM | |
| 1. | Arizona | 211.91 |
| 2. | Nevada | 237.08 |
| 3. | New Mexico | 237.52 |
| 4. | California | 255.57 |
| 5. | Utah | 279.05 |
| 6. | Idaho | 301.95 |
| 7. | Kentucky | 310.79 |
| 8. | Colorado | 334.85 |
| 9. | Indiana | 349.14 |
| 10. | West Virginia | 364.68 |
| 11. | Ohio | 365.63 |
| 12. | Washington | 373.57 |
| 13. | Wyoming | 376.01 |
| 14. | Mississippi | 380.59 |
| 15. | Michigan | 382.76 |
| 16. | Maine | 384.82 |
| 17. | Florida | 390.79 |
| 18. | Texas | 398.33 |
| 19. | Tennessee | 410.03 |
| 20. | Oregon | 415.04 |
| 21. | Vermont | 419.58 |
| 22. | Illinois | 432.53 |
| 23. | Nebraska | 436.84 |
| 24. | Louisiana | 437.26 |
| 25. | Wisconsin | 440.73 |
| 26. | Georgia | 444.91 |
| 27. | Alabama | 445.67 |
| 28. | District of Columbia | 447.35 |
| 29. | Oklahoma | 448.72 |
| 30. | North Dakota | 448.94 |
| 31. | South Carolina | 459.27 |
| 32. | New Hampshire | 461.03 |
| 33. | Iowa | 465.05 |
| 34. | Montana | 472.81 |
| 35. | Minnesota | 475.48 |
| 36. | South Dakota | 477.03 |
| 37. | Missouri | 479.17 |
| 38. | Massachusetts | 494.36 |
| 39. | Arkansas | 499.65 |
| 40. | Pennsylvania | 501.62 |
| 41. | North Carolina | 502.09 |
| 42. | New York | 513.81 |
| 43. | Rhode Island | 514.21 |
| 44. | Kansas | 530.99 |
| 45. | New Jersey | 553.71 |
| 46. | Connecticut | 554.77 |
| 47. | Virginia | 557.44 |
| 48. | Delaware | 622.99 |
| 49. | Maryland | 636.31 |
No data collected for Hawaii and Alaska.
Wyndly Summer 2023 Pollen Report Methodology
For each city, Wyndly obtained monthly pollen PPMs (pollen grains per cubic meter) for each form (tree, grass, and weed) from February 2022 - May 2023. Data were obtained from Pollen Sense, LLC Automated Particulate Sensors (APS). These sensors automatically detect particulate matter collected from ambient air, and use a neural network algorithm to identify individual pollen species and calculate daily pollen counts.
Yearly averages are calculated by summing the three allergen averages per month of data for a total monthly PPM, summing all monthly total PPMs, then dividing by 12 (month count). Used for per-city average, state average, and total USA average. Season comparisons are done by summing the months of Spring (March, April, May) for 2023 and 2022. If the absolute of the (2023-2022)/2022 is ≤ 0.05, the years were about the same. Otherwise, the more PPM, the worse the season.