Roof Year · Compare counties
Same benchmark. Different weather histories.
Compare the recorded exposure profile of up to four U.S. counties across six measures, 2016–2025. Each measure stands on its own.
Six measures, side by side
Heat days ≥100°F
county-days ≥100°F
National range 0–1,204
Freeze days ≤32°F
county-days ≤32°F
National range 0–2,762
Hail ≥1″ reported days
reported county-days
National range 0–130
Hail reporting thresholds changed around 2010.
Hail ≥2″ reported days
reported county-days
National range 0–34
Reported severe-wind days ≥50 kt
reported county-days ≥50 kt
National range 0–139
Cumulative solar exposure
MWh/m² · 2016–2025 total
National range 8.66–21.65
Scale starts at 8.66, the national minimum — not zero. Irradiation, not roof temperature.
About these figures
Historical county exposure only. These figures describe recorded weather, not any specific roof. Do not infer roof condition, remaining life, damage, replacement timing, or a combined score.
Values come from the frozen 2016–2025 Roof Year benchmark: NOAA daily temperature records, NOAA Storm Events reported county-days, and NASA POWER solar exposure. Percentiles use midrank among counties with valid data.
Download frozen benchmark CSV →