Not days — hours. How many hours of 2026 has it been at or above 90 °F, at or below freezing, under a dangerous heat index, sticky with a high dew point, or raining? Counted from every hour of NOAA's URMA 2.5 km analysis across the Lower 48. Tap any spot on the map for that 2.5 km square's whole year: the temperature histogram, an hour-by-hour calendar, streaks, wet days and dry spells.