Freely Downloadable Data Sets Updated Daily

Heating degree days (F) - Maryland (US) - NOAA - Daily

Latest updates. In Maryland, heating degree days were 23.0 degrees Fahrenheit on 28 December 2025, compared to 30.0 on the previous day.

Sample. There are 16,433 records in the daily series shown in the figure above. The time range covered by the series stretches from January 1981 to December 2025.

History. Have a look at a few summary statistics calculated on the entire sample: degree days hit a minimum of 0.0 degrees Fahrenheit on 4 April 1981; they recorded a maximum of 66.0 on 19 January 1994; they averaged 12.3.

Latest values

Date Value - Degrees Fahrenheit
2025-12-26 32.0
2025-12-27 30.0
2025-12-28 23.0

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Series Metadata

Field Value
Description Heating degree days
Country Maryland (US)
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