How the numbers were computed
For the story Heating degree days in the EU countries.
Every number in the story is a Eurostat value or is computed from Eurostat values. Each value is named by dataset, Eurostat key and period. Each request is kept as received.
The ranking
Ranks
Rank by value, highest first. Equal values share a rank, and the next rank is skipped. There are no ties in this ranking.
- 27 values, one per country
nrg_chdd_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r1
16.0
Highest value ÷ lowest value: 5,025.45 ÷ 314.7 = 15.9690. Rounded to 1 decimal.
- 5,025.45: Finland, 2025
nrg_chdd_a:A.NR.HDD.FI@2025· request r1 - 314.7: Malta, 2025
nrg_chdd_a:A.NR.HDD.MT@2025· request r1
27 / 27
EU countries with a value for 2025: all 27 of the 27 EU member states.
- 27 values, one per country
nrg_chdd_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r1
Ranks, The regions of the EU
Rank by value, highest first. Equal values share a rank, and the next rank is skipped. There are no ties in this ranking.
- 237 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Class 1 of 5
The regions sorted by value and cut into five classes of about equal count; equal values stay in one class; a class's ends are its lowest and highest region's values.
- 47 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Class 2 of 5
The regions sorted by value and cut into five classes of about equal count; equal values stay in one class; a class's ends are its lowest and highest region's values.
- 48 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Class 3 of 5
The regions sorted by value and cut into five classes of about equal count; equal values stay in one class; a class's ends are its lowest and highest region's values.
- 47 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Class 4 of 5
The regions sorted by value and cut into five classes of about equal count; equal values stay in one class; a class's ends are its lowest and highest region's values.
- 48 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Class 5 of 5
The regions sorted by value and cut into five classes of about equal count; equal values stay in one class; a class's ends are its lowest and highest region's values.
- 47 values, one per country
nrg_chddr2_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r3
Over time
The EU figure, 1980–2025
The figure of the European Union - 27 countries (from 2020) as Eurostat publishes it, one value a year.
- 3,717.76: European Union - 27 countries (from 2020), 1980
nrg_chdd_a:A.NR.HDD.EU27_2020@1980· request r1 - 3,506.52: European Union - 27 countries (from 2020), 1981
nrg_chdd_a:A.NR.HDD.EU27_2020@1981· request r1 - 3,354.52: European Union - 27 countries (from 2020), 1982
nrg_chdd_a:A.NR.HDD.EU27_2020@1982· request r1 - 3,314.98: European Union - 27 countries (from 2020), 1983
nrg_chdd_a:A.NR.HDD.EU27_2020@1983· request r1 - 3,472.34: European Union - 27 countries (from 2020), 1984
nrg_chdd_a:A.NR.HDD.EU27_2020@1984· request r1 - 3,763.96: European Union - 27 countries (from 2020), 1985
nrg_chdd_a:A.NR.HDD.EU27_2020@1985· request r1 - 3,563.29: European Union - 27 countries (from 2020), 1986
nrg_chdd_a:A.NR.HDD.EU27_2020@1986· request r1 - 3,703.42: European Union - 27 countries (from 2020), 1987
nrg_chdd_a:A.NR.HDD.EU27_2020@1987· request r1 - 3,326.24: European Union - 27 countries (from 2020), 1988
nrg_chdd_a:A.NR.HDD.EU27_2020@1988· request r1 - 3,047.37: European Union - 27 countries (from 2020), 1989
nrg_chdd_a:A.NR.HDD.EU27_2020@1989· request r1 - 3,068.6: European Union - 27 countries (from 2020), 1990
nrg_chdd_a:A.NR.HDD.EU27_2020@1990· request r1 - 3,434.47: European Union - 27 countries (from 2020), 1991
nrg_chdd_a:A.NR.HDD.EU27_2020@1991· request r1 - 3,242.4: European Union - 27 countries (from 2020), 1992
nrg_chdd_a:A.NR.HDD.EU27_2020@1992· request r1 - 3,407.65: European Union - 27 countries (from 2020), 1993
nrg_chdd_a:A.NR.HDD.EU27_2020@1993· request r1 - 3,181.0: European Union - 27 countries (from 2020), 1994
nrg_chdd_a:A.NR.HDD.EU27_2020@1994· request r1 - 3,255.43: European Union - 27 countries (from 2020), 1995
nrg_chdd_a:A.NR.HDD.EU27_2020@1995· request r1 - 3,571.6: European Union - 27 countries (from 2020), 1996
nrg_chdd_a:A.NR.HDD.EU27_2020@1996· request r1 - 3,230.59: European Union - 27 countries (from 2020), 1997
nrg_chdd_a:A.NR.HDD.EU27_2020@1997· request r1 - 3,302.78: European Union - 27 countries (from 2020), 1998
nrg_chdd_a:A.NR.HDD.EU27_2020@1998· request r1 - 3,166.12: European Union - 27 countries (from 2020), 1999
nrg_chdd_a:A.NR.HDD.EU27_2020@1999· request r1 - 2,997.22: European Union - 27 countries (from 2020), 2000
nrg_chdd_a:A.NR.HDD.EU27_2020@2000· request r1 - 3,248.43: European Union - 27 countries (from 2020), 2001
nrg_chdd_a:A.NR.HDD.EU27_2020@2001· request r1 - 3,100.11: European Union - 27 countries (from 2020), 2002
nrg_chdd_a:A.NR.HDD.EU27_2020@2002· request r1 - 3,259.84: European Union - 27 countries (from 2020), 2003
nrg_chdd_a:A.NR.HDD.EU27_2020@2003· request r1 - 3,250.83: European Union - 27 countries (from 2020), 2004
nrg_chdd_a:A.NR.HDD.EU27_2020@2004· request r1 - 3,245.76: European Union - 27 countries (from 2020), 2005
nrg_chdd_a:A.NR.HDD.EU27_2020@2005· request r1 - 3,116.5: European Union - 27 countries (from 2020), 2006
nrg_chdd_a:A.NR.HDD.EU27_2020@2006· request r1 - 3,018.56: European Union - 27 countries (from 2020), 2007
nrg_chdd_a:A.NR.HDD.EU27_2020@2007· request r1 - 3,072.89: European Union - 27 countries (from 2020), 2008
nrg_chdd_a:A.NR.HDD.EU27_2020@2008· request r1 - 3,147.83: European Union - 27 countries (from 2020), 2009
nrg_chdd_a:A.NR.HDD.EU27_2020@2009· request r1 - 3,534.71: European Union - 27 countries (from 2020), 2010
nrg_chdd_a:A.NR.HDD.EU27_2020@2010· request r1 - 3,003.34: European Union - 27 countries (from 2020), 2011
nrg_chdd_a:A.NR.HDD.EU27_2020@2011· request r1 - 3,272.05: European Union - 27 countries (from 2020), 2012
nrg_chdd_a:A.NR.HDD.EU27_2020@2012· request r1 - 3,194.25: European Union - 27 countries (from 2020), 2013
nrg_chdd_a:A.NR.HDD.EU27_2020@2013· request r1 - 2,851.3: European Union - 27 countries (from 2020), 2014
nrg_chdd_a:A.NR.HDD.EU27_2020@2014· request r1 - 2,934.16: European Union - 27 countries (from 2020), 2015
nrg_chdd_a:A.NR.HDD.EU27_2020@2015· request r1 - 3,066.58: European Union - 27 countries (from 2020), 2016
nrg_chdd_a:A.NR.HDD.EU27_2020@2016· request r1 - 3,078.53: European Union - 27 countries (from 2020), 2017
nrg_chdd_a:A.NR.HDD.EU27_2020@2017· request r1 - 2,974.23: European Union - 27 countries (from 2020), 2018
nrg_chdd_a:A.NR.HDD.EU27_2020@2018· request r1 - 2,944.66: European Union - 27 countries (from 2020), 2019
nrg_chdd_a:A.NR.HDD.EU27_2020@2019· request r1 - 2,795.01: European Union - 27 countries (from 2020), 2020
nrg_chdd_a:A.NR.HDD.EU27_2020@2020· request r1 - 3,160.78: European Union - 27 countries (from 2020), 2021
nrg_chdd_a:A.NR.HDD.EU27_2020@2021· request r1 - 2,888.84: European Union - 27 countries (from 2020), 2022
nrg_chdd_a:A.NR.HDD.EU27_2020@2022· request r1 - 2,851.89: European Union - 27 countries (from 2020), 2023
nrg_chdd_a:A.NR.HDD.EU27_2020@2023· request r1 - 2,728.88: European Union - 27 countries (from 2020), 2024
nrg_chdd_a:A.NR.HDD.EU27_2020@2024· request r1 - 2,827.75: European Union - 27 countries (from 2020), 2025
nrg_chdd_a:A.NR.HDD.EU27_2020@2025· request r1
Changes in %, 1980 to 2025
Per country and for the EU, (the 2025 value ÷ the 1980 value − 1) × 100. Rounded to each value rounded to 0 decimals as displayed, then divided; the change rounded half up to a whole number.
- 28 values, one per country
nrg_chdd_a:A.NR.HDD.<geo>@2025(<geo> is the country code) · request r1 - 28 values, one per country
nrg_chdd_a:A.NR.HDD.<geo>@1980(<geo> is the country code) · request r1
Countries where heating degree days fell
The countries whose difference 2025 − 1980 is below zero, 27 in all.
In heating degree days
Ranks, cooling degree days
Rank by value, highest first. Equal values share a rank, and the next rank is skipped. Ireland and Lithuania, at 0 cooling degree days each, are both 26th.
- 27 values, one per country
nrg_chdd_a:A.NR.CDD.<geo>@2025(<geo> is the country code) · request r2
Eurostat values in the text
2,828
Eurostat publishes 2,827.75. The text shows it rounded to a whole number.
- 2,827.75: European Union - 27 countries (from 2020), 2025
nrg_chdd_a:A.NR.HDD.EU27_2020@2025· request r1
315
Eurostat publishes 314.7. The text shows it rounded to a whole number.
- 314.7: Malta, 2025
nrg_chdd_a:A.NR.HDD.MT@2025· request r1
5,025
Eurostat publishes 5,025.45. The text shows it rounded to a whole number.
- 5,025.45: Finland, 2025
nrg_chdd_a:A.NR.HDD.FI@2025· request r1
854
Eurostat publishes 854.18. The text shows it rounded to a whole number.
- 854.18: Cyprus, 2025
nrg_chdd_a:A.NR.CDD.CY@2025· request r2
3,718
Eurostat publishes 3,717.76. The text shows it rounded to a whole number.
- 3,717.76: European Union - 27 countries (from 2020), 1980
nrg_chdd_a:A.NR.HDD.EU27_2020@1980· request r1
Requests
- r1: Eurostat API query · retrieved 7 November 2026 · data updated 8 May 2026 · fingerprint:
7cd8e00129634c45a9ff59f5c2c725cd24da1de07689e403073eaa05d31c4b95 - r2: Eurostat API query · retrieved 7 November 2026 · data updated 8 May 2026 · fingerprint:
1e8efddc949bcbd3814d4621afde5fb6527ac999598f9577d737b556fea56528 - r3: Eurostat API query · retrieved 7 November 2026 · data updated 8 May 2026 · fingerprint:
1cbb18f05494030e45d89d14f7c2be59bea157e5fdabecfc3276aabe1f05416a - r4: Eurostat API query · retrieved 7 November 2026 · data updated 8 May 2026 · fingerprint:
346d67155a1d5d080a38f658a837c937eaa03b7b4da2b55e3268890f878c24c8