🌾 US Pollen — national aggregate

State: pick a state for its station-level dashboards
Cumulative season chart — national mean, arctic sea-ice style each trace = one year (mean across active stations); only the current year is highlighted

Small multiples — every year side by side

Annual totals & trend

Typical year — state timelapse

mean daily value by state for that week of a typical year · tap a state to open its dashboard · log color scale

Daily heatmap (log scale)

Source: AAAAI National Allergy Bureau archive (GraphQL pull 2003→2026) — mean of stations with ≥30 counting days that year. Centralized store: data/master.sqlite. Companion pages: state dashboards. Generated .