Cooling and heating: Cities and FUAs Cooling … Cooling Cities FUAs in St. Louis

St. Louis: Cooling and heating: Cities and FUAs Cooling … Cooling Cities FUAs was 389.99 Degree days in 2025. ▬ Flat

Latest (2025)
389.99 Degree days
Change on year
down 16.6%
Rank
302nd
of 1314 regions
All-time high
729.95 Degree days
in 1954
All-time low
293.22 Degree days
in 1950
Years of data
76
1950–2025

Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Louis, 1950–2025

0200400600800195019872025

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

Analysis

The most recent figure for cooling and heating degree days - cities and fuas — cooling degree in St. Louis is 389.99 Degree days, measured in 2025.

That represents a change of down 16.6% on the previous year and down 2.6% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in St. Louis peaked at 729.95 Degree days in 1954 and was at its lowest, 293.22 Degree days, in 1950.

St. Louis ranks 302nd of 1314 regions on this measure, in the top quarter.

Cooling and heating: Cities and FUAs Cooling … Cooling Cities FUAs in St. Louis, year by year

Annual values for Cooling and heating degree days - Cities and FUAs — Cooling degree days in St. Louis, 1950 to 2025.
Year Degree days Change
1950 293.22 Degree days —
1951 394.05 Degree days +34.4%
1952 636.39 Degree days +61.5%
1953 686.2 Degree days +7.8%
1954 729.95 Degree days +6.4%
1955 534.29 Degree days -26.8%
1956 560.06 Degree days +4.8%
1957 426.42 Degree days -23.9%
1958 380.17 Degree days -10.8%
1959 533.48 Degree days +40.3%
1960 489.67 Degree days -8.2%
1961 407.44 Degree days -16.8%
1962 453.99 Degree days +11.4%
1963 481.3 Degree days +6.0%
1964 494.82 Degree days +2.8%
1965 432.7 Degree days -12.6%
1966 448.25 Degree days +3.6%
1967 338.02 Degree days -24.6%
1968 442.2 Degree days +30.8%
1969 459.66 Degree days +3.9%
1970 472.92 Degree days +2.9%
1971 475.3 Degree days +0.5%
1972 462.07 Degree days -2.8%
1973 403.98 Degree days -12.6%
1974 364.1 Degree days -9.9%
1975 429.95 Degree days +18.1%
1976 374.7 Degree days -12.8%
1977 488.99 Degree days +30.5%
1978 456.01 Degree days -6.7%
1979 390.28 Degree days -14.4%
1980 621.61 Degree days +59.3%
1981 368.86 Degree days -40.7%
1982 330.38 Degree days -10.4%
1983 537.51 Degree days +62.7%
1984 407.3 Degree days -24.2%
1985 364.25 Degree days -10.6%
1986 499.1 Degree days +37.0%
1987 526.17 Degree days +5.4%
1988 547.81 Degree days +4.1%
1989 399.24 Degree days -27.1%
1990 420.13 Degree days +5.2%
1991 537.62 Degree days +28.0%
1992 313.96 Degree days -41.6%
1993 412.32 Degree days +31.3%
1994 442.45 Degree days +7.3%
1995 490.56 Degree days +10.9%
1996 413.98 Degree days -15.6%
1997 408.13 Degree days -1.4%
1998 503.53 Degree days +23.4%
1999 471.2 Degree days -6.4%
2000 451.79 Degree days -4.1%
2001 444.91 Degree days -1.5%
2002 549.66 Degree days +23.5%
2003 389.6 Degree days -29.1%
2004 347.17 Degree days -10.9%
2005 566.07 Degree days +63.1%
2006 507.82 Degree days -10.3%
2007 587.9 Degree days +15.8%
2008 378.09 Degree days -35.7%
2009 327.83 Degree days -13.3%
2010 591.17 Degree days +80.3%
2011 575.39 Degree days -2.7%
2012 678.74 Degree days +18.0%
2013 457.91 Degree days -32.5%
2014 394.08 Degree days -13.9%
2015 400.51 Degree days +1.6%
2016 523.87 Degree days +30.8%
2017 484.58 Degree days -7.5%
2018 592.66 Degree days +22.3%
2019 483.28 Degree days -18.5%
2020 421.7 Degree days -12.7%
2021 470.68 Degree days +11.6%
2022 497.81 Degree days +5.8%
2023 494.43 Degree days -0.7%
2024 467.51 Degree days -5.4%
2025 389.99 Degree days -16.6%

Averages by decade

DecadeAverage LowestHighest Years
1950s 517.42 Degree days 293.22 Degree days 729.95 Degree days 10
1960s 444.81 Degree days 338.02 Degree days 494.82 Degree days 10
1970s 431.83 Degree days 364.1 Degree days 488.99 Degree days 10
1980s 460.22 Degree days 330.38 Degree days 621.61 Degree days 10
1990s 441.39 Degree days 313.96 Degree days 537.62 Degree days 10
2000s 455.08 Degree days 327.83 Degree days 587.9 Degree days 10
2010s 518.22 Degree days 394.08 Degree days 678.74 Degree days 10
2020s 457.02 Degree days 389.99 Degree days 497.81 Degree days 6

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Frequently asked questions

What is cooling and heating degree days - cities and fuas — cooling degree in St. Louis?
Cooling and heating degree days - cities and fuas — cooling degree in St. Louis was 389.99 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 — cooling degree recorded in St. Louis?
The highest recorded value was 729.95 Degree days in 1954.
What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in St. Louis?
The lowest recorded value was 293.22 Degree days in 1950.
How does St. Louis rank for cooling and heating degree days - cities and fuas — cooling degree?
St. Louis ranks 302nd out of 1314 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in St. Louis?
Over the last ten years it is down 2.6%. The long-run trend across the full record is flat.
Where does this St. Louis 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 — Cooling degree days. Statizoid updates them automatically from the source API.

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Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Louis. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 14 October 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-cooling-degree-days/st-louis/

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<a href="https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-cooling-degree-days/st-louis/">Cooling and heating degree days - Cities and FUAs — Cooling degree in St. Louis</a> — Statizoid

About this data

Indicator
Cooling and heating degree days - Cities and FUAs — Cooling degree days
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

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. Data sources and methodology The indicators use 0.1-degree resolution grids from the ERA5-Land dataset. 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 22°C for CDDs and 15°C for HDDs. 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. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries. Cite this dataset OECD Regions, cities and local areas database (Cooling and heating degree days - Cities and FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org