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Heating degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily

Latest updates. In the United States (excluding Alaska and Hawaii), heating degree days stood at 19.0 degrees Fahrenheit on 28 December 2025, compared to 20.0 on 27 December.

Sample. The daily series presented in the figure has 16,433 records. The span of time covered by the series goes from January 1981 to December 2025.

History. Here’s a quick look at some simple statistics we calculated on the whole sample: degree days registered a minimum of 0.0 degrees Fahrenheit on 29 May 1981; they hit a maximum of 51.0 on 25 December 1983; they had a mean value of 11.6.

Latest values

Date Value - Degrees Fahrenheit
2025-12-26 19.0
2025-12-27 20.0
2025-12-28 19.0

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Series Metadata

Field Value
Description Heating degree days
Country United States (excluding Alaska and Hawaii)
Economic concept Heating needs
Data type Estimate based on daily minimum and maximum temperatures
Deflation method Not applicable
Seasonally adjusted No
Rescaling Population-weighted averages of weather-station observations
Frequency Daily
Unit Degrees Fahrenheit
Source NOAA National Weather Service
Source type Federal Administration
Data licence Not copyrightable under U.S. law
Measure type 65F - (max_daily_temperature + min_daily_temperature) / 2

Series in the same data set

Discover the other time series included in this data set.

Heating degree days

Series Name Observations Start Date End Date
Heating degree days (F) - Alabama (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Arkansas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Arizona (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - California (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Colorado (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Connecticut (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Delaware (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Florida (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Georgia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Iowa (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Idaho (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Illinois (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Indiana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Kansas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Kentucky (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Louisiana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Massachusetts (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Maryland (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Maine (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Michigan (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Minnesota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Missouri (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Mississippi (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Montana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - North Carolina (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - North Dakota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Nebraska (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - New Hampshire (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - New Jersey (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - New Mexico (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Nevada (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - New York (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Ohio (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Oklahoma (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Oregon (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Pennsylvania (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - RhodeIsland (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - South Carolina (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - South Dakota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Tennessee (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Texas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Utah (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Virginia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Vermont (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Washington (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Wisconsin (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - WestVirginia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - Wyoming (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Heating degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16433 1981-01-01 2025-12-28

Cooling degree days

Series Name Observations Start Date End Date
Cooling degree days (F) - Alabama (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Arkansas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Arizona (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - California (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Colorado (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Connecticut (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Delaware (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Florida (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Georgia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Iowa (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Idaho (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Illinois (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Indiana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Kansas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Kentucky (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Louisiana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Massachusetts (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Maryland (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Maine (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Michigan (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Minnesota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Missouri (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Mississippi (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Montana (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - North Carolina (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - North Dakota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Nebraska (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - New Hampshire (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - New Jersey (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - New Mexico (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Nevada (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - New York (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Ohio (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Oklahoma (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Oregon (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Pennsylvania (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - RhodeIsland (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - South Carolina (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - South Dakota (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Tennessee (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Texas (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Utah (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Virginia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Vermont (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Washington (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Wisconsin (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - WestVirginia (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - Wyoming (US) - NOAA - Daily 16433 1981-01-01 2025-12-28
Cooling degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16433 1981-01-01 2025-12-28