Base 50°F · 1 January to Nov 8

Growing degree days in 2026

Accumulated heat for the season, from NOAA daily station highs and lows. The largest cities:

  1. New York, NY2025 by this date: 3,9133,936
  2. Los Angeles, CA2025 by this date: 5,1106,296
  3. Chicago, IL2025 by this date: 3,8853,874
  4. Houston, TX2025 by this date: 7,9038,172
  5. Phoenix, AZ2025 by this date: 9,47810,230
  6. Philadelphia, PA2025 by this date: 4,3514,624
  7. San Antonio, TX2025 by this date: 8,1798,206
  8. San Diego, CA2025 by this date: 4,5715,627
  9. Dallas, TX2025 by this date: 6,9707,930
  10. Jacksonville, FL2025 by this date: 6,9927,206
Cities
860
with a complete daily station
Ahead of 2025
757
cities with more GDD than by this date last year
Most GDD
10,230
Phoenix, AZ

Every city

Sort by GDD or filter by city or state. Each links to the city's soil page, GDD section.

CityGDD 2026Same date 2025DifferenceState
New York, NY3,9363,913+23New York
Los Angeles, CA6,2965,110+1,186California
Chicago, IL3,8743,885-11Illinois
Houston, TX8,1727,903+269Texas
Phoenix, AZ10,2309,478+752Arizona
Philadelphia, PA4,6244,351+273Pennsylvania
San Antonio, TX8,2068,179+27Texas
San Diego, CA5,6274,571+1,056California
Dallas, TX7,9306,970+960Texas
Jacksonville, FL7,2066,992+214Florida
Fort Worth, TX7,5856,753+832Texas
San Jose, CA4,3913,918+473California

GDD base 50°F = the sum over days of ((high + low) / 2 − 50), counting zero on days that average below 50°F. No upper cap.

Data: Global Historical Climatology Network - Daily (GHCN-Daily), daily maximum and minimum temperature (NOAA National Centers for Environmental Information (NCEI)); GeoNames gazetteer (cities15000) (GeoNames).