Cooling and heating degree days - Cities and FUAs in Cass

Cass: Cooling and heating degree days - Cities and FUAs was 3,719 Degree days in 2025. β–Ό Falling

Latest (2025)
3,719 Degree days
Change on year
up 10.4%
Rank
21st
of 1323 regions
All-time high
5,011 Degree days
in 1950
All-time low
3,183 Degree days
in 1987
Years of data
76
1950–2025

Cooling and heating degree days - Cities and FUAs in Cass, 1950–2025

02.0k4.0k6.0k195019872025

Source: Organisation for Economic Co-operation and Development. Measured in Degree days.

Analysis

Cass recorded 3,719 Degree days for cooling and heating degree days - cities and fuas in 2025.

The figure is up 10.4% on the previous year and up 8.4% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas in Cass peaked at 5,011 Degree days in 1950 and was at its lowest, 3,183 Degree days, in 1987.

Cass ranks 21st of 1323 regions on this measure, in the top 10%.

The long-run direction has been consistently falling across the 76 years of available data.

Averages by decade

DecadeAverage LowestHighest Years
1950s 4,307 Degree days 3,849 Degree days 5,011 Degree days 10
1960s 4,311 Degree days 4,070 Degree days 4,620 Degree days 10
1970s 4,287 Degree days 3,709 Degree days 4,750 Degree days 10
1980s 3,976 Degree days 3,183 Degree days 4,430 Degree days 10
1990s 3,984 Degree days 3,505 Degree days 4,903 Degree days 10
2000s 3,924 Degree days 3,444 Degree days 4,347 Degree days 10
2010s 3,912 Degree days 3,318 Degree days 4,578 Degree days 10
2020s 3,768 Degree days 3,369 Degree days 4,385 Degree days 6

More reference data data for Cass

All data for Cass β†’

Frequently asked questions

What is cooling and heating degree days - cities and fuas in Cass?
Cooling and heating degree days - cities and fuas in Cass was 3,719 Degree days in 2025, according to Organisation for Economic Co-operation and Development.
What is the highest cooling and heating degree days - cities and fuas recorded in Cass?
The highest recorded value was 5,011 Degree days in 1950.
What is the lowest cooling and heating degree days - cities and fuas recorded in Cass?
The lowest recorded value was 3,183 Degree days in 1987.
How does Cass rank for cooling and heating degree days - cities and fuas?
Cass ranks 21st out of 1323 regions with data for 2025.
Is cooling and heating degree days - cities and fuas rising or falling in Cass?
Over the last ten years it is up 8.4%. The long-run trend across the full record is falling.
Where does this Cass data come from?
The figures come from Organisation for Economic Co-operation and Development, published as part of Cooling and heating degree days - Cities and FUAs. Statizoid updates them automatically from the source API.

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CSV Β· JSON β€” 76 observations, free to reuse under OECD Terms and Conditions (attribution required).

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Cooling and heating degree days - Cities and FUAs in Cass. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 17 August 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas/cass/

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About this data

Indicator
Cooling and heating degree days - Cities and FUAs
Unit
Degree days
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
1,325 places, 100,700 data points, 1950–2025
Last refreshed

<p align="justify">This dataset provides indicators of Cooling and Heating Degree Days (CDDs and HDDs) for FUAs and cities. CDDs and HDDs are measurements used to estimate energy usage based on outdoor temperature. CDD measures the demand for cooling, while HDD measures the demand for heating, both calculated relative to a baseline temperature.</p> <h3>Data sources and methodology</h3> <p align="justify"> The indicators use 0.1-degree resolution grids from the <a href=https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_AGGR>ERA5-Land dataset</a>. ERA5-Land is used as it provides harmonised, globally consistent coverage at fine spatial resolution (0.1 degree), enabling the production of comparable subnational indicators also where national meteorological data are not available at the required scale. Annual CDDs are the sum over a year of the differences between the daily mean outdoor air temperature and the threshold temperature when the outdoor temperature is above the threshold temperature. HDDs are the sum over a year of the differences between the threshold temperature and the daily mean outdoor air temperature when the outdoor temperature is below the threshold temperature. Threshold temperatures are set to 22Β°C for CDDs and 15Β°C for HDDs.</p> <p align="justify"> These estimates may differ from official subnational climate statistics due to differences in methodological approaches, such as the use of reanalysis based top down modelling versus in situ observations, along with variations in input data sources, spatial resolution, and the models and algorithms used to generate temperature estimates. </p> <h3>Defining FUAs and cities</h3> <p align="justify">The OECD, in cooperation with the EU, has developed a harmonised <a href="https://www.oecd.org/en/data/datasets/oecd-definition-of-cities-and-functional-urban-areas.html">definition of functional urban areas</a> (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns <a href=https://doi.org/10.1787/9789264174108-en>(OECD, 2012)</a>. FUAs consist of: <ol> <li><b>A city</b> – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city.</li> <li><b>A commuting zone</b> – including all local areas where at least 15% of employed residents work in the city.</li> </ol> The delineation process includes: <ul> <li>Assigning municipalities surrounded by a single FUA to that FUA.</li> <li>Excluding non-contiguous municipalities.</li> </ul> <p> The correspondence table between SAUs and FUAs/cities is available in <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.parquet>parquet </a> and <a href=https://webfs-cfe.oecd.org/files/.Stat/cities_local_areas/fua_cities_sau_mapping.csv>csv</a> format. </p> The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries.</p> <h3>Cite this dataset</h3> <p>OECD Regions, cities and local areas database (<a href="http://data-explorer.oecd.org/s/1dj">Cooling and heating degree days - Cities and FUAs</a>),Β <a href=http://oe.cd/geostats>http://oe.cd/geostats</a></p> <h3>Further information</h3> <ul> <li> <a href=https://localdataportal.oecd.org/>OECD Local Data Portal </a> </li> <li> <a href=https://www.oecd.org/en/publications/oecd-regions-and-cities-at-a-glance-2024_f42db3bf-en.html/>OECD Regions and Cities at a Glance </a> </li> </ul> <p align="justify">For questions and/or comments, please email <a href="mailto:CitiesStat@oecd.org">CitiesStat@oecd.org</a>