Freely Downloadable Data Sets Updated Daily

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

Latest updates. In Connecticut, heating degree days stood at 36.0 degrees Fahrenheit on 12 February 2026, unchanged with respect to 11 February.

Sample. This daily time series has a total of 16,479 data points. The series covers the time range going from January 1981 to February 2026.

History. Here’s a quick look at a few simple statistics calculated on the entire sample: degree days had a mean of 16.2 degrees Fahrenheit; they reached their highest level of 65.0 on 18 January 1982; they recorded a minimum of 0.0 on 25 May 1981.

Latest values

Date Value - Degrees Fahrenheit
2026-02-10 44.0
2026-02-11 36.0
2026-02-12 36.0

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Series Metadata

Field Value
Description Heating degree days
Country Connecticut (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 16479 1981-01-01 2026-02-12
Heating degree days (F) - Arkansas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Arizona (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - California (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Colorado (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Connecticut (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Delaware (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Florida (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Georgia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Iowa (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Idaho (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Illinois (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Indiana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Kansas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Kentucky (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Louisiana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Massachusetts (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Maryland (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Maine (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Michigan (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Minnesota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Missouri (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Mississippi (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Montana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - North Carolina (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - North Dakota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Nebraska (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - New Hampshire (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - New Jersey (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - New Mexico (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Nevada (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - New York (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Ohio (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Oklahoma (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Oregon (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Pennsylvania (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - RhodeIsland (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - South Carolina (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - South Dakota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Tennessee (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Texas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Utah (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Virginia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Vermont (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Washington (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Wisconsin (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - WestVirginia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - Wyoming (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Heating degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16479 1981-01-01 2026-02-12

Cooling degree days

Series Name Observations Start Date End Date
Cooling degree days (F) - Alabama (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Arkansas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Arizona (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - California (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Colorado (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Connecticut (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Delaware (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Florida (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Georgia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Iowa (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Idaho (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Illinois (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Indiana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Kansas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Kentucky (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Louisiana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Massachusetts (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Maryland (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Maine (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Michigan (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Minnesota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Missouri (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Mississippi (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Montana (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - North Carolina (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - North Dakota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Nebraska (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - New Hampshire (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - New Jersey (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - New Mexico (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Nevada (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - New York (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Ohio (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Oklahoma (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Oregon (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Pennsylvania (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - RhodeIsland (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - South Carolina (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - South Dakota (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Tennessee (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Texas (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Utah (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Virginia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Vermont (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Washington (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Wisconsin (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - WestVirginia (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - Wyoming (US) - NOAA - Daily 16479 1981-01-01 2026-02-12
Cooling degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16479 1981-01-01 2026-02-12