Freely Downloadable Data Sets Updated Daily

Cooling degree days (F) - Montana (US) - NOAA - Daily

Latest updates. In Montana, cooling degree days were 0.0 degrees Fahrenheit on 17 September 2026, unchanged with respect to 16 September.

Sample. The daily time series displayed in the plot has 16,696 data points. The time range covered by the series stretches from January 1981 to September 2026.

History. Here’s a quick look at some statistics calculated on the full sample: degree days had an average value of 0.6 degrees Fahrenheit; they recorded a bottom of 0.0 on 1 January 1981; they recorded a maximum of 16.0 on 14 July 2002.

Latest values

Date Value - Degrees Fahrenheit
2026-09-15 0
2026-09-16 0
2026-09-17 0

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Series Metadata

Field Value
Description Cooling degree days
Country Montana (US)
Economic concept Cooling 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 (max_daily_temperature + min_daily_temperature) / 2 - 65F

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 16696 1981-01-01 2026-09-17
Heating degree days (F) - Arkansas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Arizona (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - California (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Colorado (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Connecticut (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Delaware (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Florida (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Georgia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Iowa (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Idaho (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Illinois (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Indiana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Kansas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Kentucky (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Louisiana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Massachusetts (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Maryland (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Maine (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Michigan (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Minnesota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Missouri (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Mississippi (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Montana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - North Carolina (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - North Dakota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Nebraska (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - New Hampshire (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - New Jersey (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - New Mexico (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Nevada (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - New York (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Ohio (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Oklahoma (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Oregon (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Pennsylvania (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - RhodeIsland (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - South Carolina (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - South Dakota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Tennessee (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Texas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Utah (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Virginia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Vermont (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Washington (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Wisconsin (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - WestVirginia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - Wyoming (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Heating degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16696 1981-01-01 2026-09-17

Cooling degree days

Series Name Observations Start Date End Date
Cooling degree days (F) - Alabama (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Arkansas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Arizona (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - California (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Colorado (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Connecticut (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Delaware (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Florida (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Georgia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Iowa (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Idaho (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Illinois (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Indiana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Kansas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Kentucky (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Louisiana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Massachusetts (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Maryland (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Maine (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Michigan (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Minnesota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Missouri (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Mississippi (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Montana (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - North Carolina (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - North Dakota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Nebraska (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - New Hampshire (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - New Jersey (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - New Mexico (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Nevada (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - New York (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Ohio (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Oklahoma (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Oregon (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Pennsylvania (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - RhodeIsland (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - South Carolina (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - South Dakota (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Tennessee (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Texas (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Utah (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Virginia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Vermont (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Washington (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Wisconsin (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - WestVirginia (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - Wyoming (US) - NOAA - Daily 16696 1981-01-01 2026-09-17
Cooling degree days (F) - United States (excluding Alaska and Hawaii) - NOAA - Daily 16696 1981-01-01 2026-09-17