Heating, cooling, and growing degree days — how much warmer or colder
than the base (65 °F for heating/cooling, 50 °F for growing) it's been, day after day: the
workhorse indices behind energy demand and the crop calendar. Every county, climate division, state,
and NOAA climate region from the nClimGrid record, live through yesterday via URMA, against the
1996–2025 normal. Tap a state to drill in.
MODEBASEMAP DETAIL
PERIODCOLOR BYWEIGHTING
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Trends & Records
ANNUAL · 1951–PRESENT · NCLIMGRID
Lower 48
Loading the 75-year record…
Day by Day
EVERY DAY · NCLIMGRID + URMA · DEGREE DAYS
Lower 48
Each square is one day's degree days; rows are months (newest on top) with that month's total and its % of the 1996–2025 normal; columns are the day of the month. Toggle Heating/Cooling above.