Sneezing, runny noses, and watery eyes last longer in some cities.
Allergy Season Is Getting Longer In Dozen of U.S. Cities
According to new data, allergy season has been extended in 164 American cities. 
The season runs longer because of warmer temperatures and fewer hard freezes. The climate change gives grass and weeds a longer time to irritate us.
Here are the top 10 cities where allergy season has gotten longer since 1970:
- Reno, Nevada: 95 days longer
- Las Cruces, New Mexico: 65 days longer
- Medford, Oregon: 61 days longer
- Boise, Idaho: 51 days longer
- Tupelo, Mississippi: 50 days longer
- Missoula, Montana: 48 days longer
- Myrtle Beach, South Carolina: 48 days longer
- El Paso, Texas: 47 days longer
- Toledo, Ohio: 45 days longer
- Eugene, Oregon: 40 days longer