The Infectious risk has remained broadly stable over the last 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has remained stable over the past 12 weeks in Sullivan, New Hampshire.
No Pollution activity has been reported over the past 12 weeks in Sullivan, New Hampshire.
Weather risk activity has been easing over the past 12 weeks in Sullivan, New Hampshire.
Last updated: August 24, 2026
Data refreshed weekly