physical-world
Cooling Degree Days · Population-Weighted · West South Central
Latest
1degree_days
Methodology
## What this measures
Daily cooling degree days (65°F base) for the West South Central states, weighted by population, from the NOAA Climate Prediction Center. A day averaging 80°F counts 15 cooling degree days; a day at or below 65°F counts zero.
## Why it matters
Cooling degree days measure summer heat where people live: air-conditioning load on the power grid, and the outdoor-season weather that drives grilling, patio and outdoor recreation demand.
## How to read it
Higher means hotter. The series sits near zero from late autumn to spring and peaks in July and August. Compare a week or a month with the same period in prior years, or sum over a season, rather than reading single days.
## What it does not say
It is temperature only: rain, wind and humidity, which also decide whether people spend a weekend outdoors, are not in it. Population weighting reflects where people live, not where any business sells.
## Source
NOAA Climate Prediction Center, weighted degree days (Population.Cooling), daily. Public domain. https://ftp.cpc.ncep.noaa.gov/htdocs/degree_days/weighted/
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