Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto

Porto: Cooling and heating degree days - Cities and FUAs, annual growth rate was 0.9132 % change on previous year in 2025. ◆ Volatile

Latest (2025)
0.9132 % change on previous year
Change on year
up 111.2%
Rank
7th
of 16 groups
All-time high
56.31 % change on previous year
in 1956
All-time low
-28.43 % change on previous year
in 1997
Years of data
75
1951–2025

Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto, 1951–2025

-200204060195119882025

Source: Statizoid (derived). Measured in % change on previous year.

Analysis

Porto recorded 0.9132 % change on previous year for cooling and heating degree days - cities and fuas, annual growth rate in 2025.

That represents a change of up 111.2% on the previous year and up 121.5% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas, annual growth rate in Porto peaked at 56.31 % change on previous year in 1956 and was at its lowest, -28.43 % change on previous year, in 1997.

The series is highly variable year to year, so single readings are best treated with caution.

Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto, year by year

Annual values for Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto, 1951 to 2025.
Year % change on previous year Change
1951 13.35 % change on previous year
1952 -6.76 % change on previous year -150.7%
1953 -3.78 % change on previous year -44.1%
1954 14.22 % change on previous year -476.0%
1955 -28.26 % change on previous year -298.7%
1956 56.31 % change on previous year -299.3%
1957 -18.85 % change on previous year -133.5%
1958 -8.08 % change on previous year -57.1%
1959 -6.03 % change on previous year -25.3%
1960 3.12 % change on previous year -151.7%
1961 -17.74 % change on previous year -668.5%
1962 35.7 % change on previous year -301.2%
1963 -0.153 % change on previous year -100.4%
1964 8.46 % change on previous year -5628.4%
1965 -10.82 % change on previous year -228.0%
1966 -8.83 % change on previous year -18.4%
1967 14.95 % change on previous year -269.3%
1968 -6.69 % change on previous year -144.8%
1969 25.61 % change on previous year -482.6%
1970 -7.28 % change on previous year -128.4%
1971 2.82 % change on previous year -138.8%
1972 0.274 % change on previous year -90.3%
1973 -6.74 % change on previous year -2558.2%
1974 -1.08 % change on previous year -83.9%
1975 2.88 % change on previous year -366.6%
1976 1.09 % change on previous year -62.3%
1977 -4.1 % change on previous year -477.5%
1978 36.56 % change on previous year -992.3%
1979 -24.69 % change on previous year -167.5%
1980 -5.81 % change on previous year -76.5%
1981 -10.24 % change on previous year +76.0%
1982 -1.25 % change on previous year -87.8%
1983 5.78 % change on previous year -563.9%
1984 6.12 % change on previous year +5.9%
1985 -1.22 % change on previous year -120.0%
1986 5.79 % change on previous year -573.3%
1987 -18.09 % change on previous year -412.1%
1988 3.18 % change on previous year -117.6%
1989 -13.1 % change on previous year -512.0%
1990 10.42 % change on previous year -179.6%
1991 16.81 % change on previous year +61.3%
1992 -2 % change on previous year -111.9%
1993 2.71 % change on previous year -235.4%
1994 -15.01 % change on previous year -653.8%
1995 -19.98 % change on previous year +33.1%
1996 35.4 % change on previous year -277.2%
1997 -28.43 % change on previous year -180.3%
1998 24.76 % change on previous year -187.1%
1999 16.54 % change on previous year -33.2%
2000 -3.85 % change on previous year -123.3%
2001 0.885 % change on previous year -123.0%
2002 -12.61 % change on previous year -1524.7%
2003 8.38 % change on previous year -166.4%
2004 11.12 % change on previous year +32.7%
2005 7.95 % change on previous year -28.5%
2006 -15.61 % change on previous year -296.3%
2007 3.55 % change on previous year -122.7%
2008 -0.3729 % change on previous year -110.5%
2009 -4.38 % change on previous year +1073.8%
2010 13.09 % change on previous year -399.2%
2011 -17.23 % change on previous year -231.6%
2012 21.04 % change on previous year -222.1%
2013 -1.83 % change on previous year -108.7%
2014 -16.57 % change on previous year +806.2%
2015 -4.25 % change on previous year -74.4%
2016 8.81 % change on previous year -307.5%
2017 -5.41 % change on previous year -161.4%
2018 11.39 % change on previous year -310.5%
2019 -5.94 % change on previous year -152.2%
2020 -16.06 % change on previous year +170.2%
2021 9.39 % change on previous year -158.5%
2022 -15.05 % change on previous year -260.3%
2023 20.88 % change on previous year -238.7%
2024 -8.15 % change on previous year -139.0%
2025 0.9132 % change on previous year -111.2%

Averages by decade

DecadeAverage LowestHighest Years
1950s 1.35 % change on previous year -28.26 % change on previous year 56.31 % change on previous year 9
1960s 4.36 % change on previous year -17.74 % change on previous year 35.7 % change on previous year 10
1970s -0.0254 % change on previous year -24.69 % change on previous year 36.56 % change on previous year 10
1980s -2.88 % change on previous year -18.09 % change on previous year 6.12 % change on previous year 10
1990s 4.12 % change on previous year -28.43 % change on previous year 35.4 % change on previous year 10
2000s -0.4945 % change on previous year -15.61 % change on previous year 11.12 % change on previous year 10
2010s 0.3109 % change on previous year -17.23 % change on previous year 21.04 % change on previous year 10
2020s -1.35 % change on previous year -16.06 % change on previous year 20.88 % change on previous year 6

More reference data data for Porto

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Frequently asked questions

What is cooling and heating degree days - cities and fuas, annual growth rate in Porto?
Cooling and heating degree days - cities and fuas, annual growth rate in Porto was 0.9132 % change on previous year in 2025, according to Statizoid (derived).
What is the highest cooling and heating degree days - cities and fuas, annual growth rate recorded in Porto?
The highest recorded value was 56.31 % change on previous year in 1956.
What is the lowest cooling and heating degree days - cities and fuas, annual growth rate recorded in Porto?
The lowest recorded value was -28.43 % change on previous year in 1997.
How does Porto rank for cooling and heating degree days - cities and fuas, annual growth rate?
Porto ranks 7th out of 16 groups with data for 2025.
Is cooling and heating degree days - cities and fuas, annual growth rate rising or falling in Porto?
Over the last ten years it is up 121.5%. The long-run trend across the full record is volatile.
Where does this Porto data come from?
The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs, annual growth rate. Statizoid updates them automatically from the source API.

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Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto. Statizoid, drawing on Statizoid (derived). Retrieved 06 September 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-annual-growth-rate/porto/

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<a href="https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-annual-growth-rate/porto/">Cooling and heating degree days - Cities and FUAs, annual growth rate in Porto</a> — Statizoid

How this figure is calculated

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.

Computed from

Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.

About this data

Indicator
Cooling and heating degree days - Cities and FUAs, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
1,307 places, 97,779 data points, 1951–2025
Last refreshed

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.