Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle

Seattle: Cooling and heating degree days - Cities and FUAs — Change in cooling was -368.13 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-368.13 % change on previous year
Change on year
down 1,032.8%
Rank
1222nd
of 1306 regions
All-time high
501.86 % change on previous year
in 1961
All-time low
-464.2 % change on previous year
in 2005
Years of data
67
1951–2025

Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle, 1951–2025

-400-2000200400600195119882025

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

Analysis

The most recent figure for cooling and heating degree days - cities and fuas — change in cooling in Seattle is -368.13 % change on previous year, measured in 2025.

Compared with earlier readings it is down 1,032.8% on the previous year and down 282.0% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — change in cooling in Seattle peaked at 501.86 % change on previous year in 1961 and was at its lowest, -464.2 % change on previous year, in 2005.

That places Seattle 1222nd out of 1306 regions with data for 2025, putting it in the bottom quarter.

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

Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle, year by year

Annual values for Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period, annual growth rate in Seattle, 1951 to 2025.
Year % change on previous year Change
1951 84.74 % change on previous year —
1952 143.35 % change on previous year +69.2%
1954 -314 % change on previous year -319.0%
1955 37.1 % change on previous year -111.8%
1956 99.91 % change on previous year +169.3%
1958 276.94 % change on previous year +177.2%
1959 -142.34 % change on previous year -151.4%
1960 67.25 % change on previous year -147.2%
1961 501.86 % change on previous year +646.3%
1962 -179.03 % change on previous year -135.7%
1963 18.89 % change on previous year -110.6%
1964 -83.52 % change on previous year -542.1%
1965 102.98 % change on previous year -223.3%
1967 233.16 % change on previous year +126.4%
1968 -143.27 % change on previous year -161.4%
1969 20.38 % change on previous year -114.2%
1970 159.76 % change on previous year +684.0%
1971 20.28 % change on previous year -87.3%
1972 -103.58 % change on previous year -610.7%
1974 21.74 % change on previous year -121.0%
1975 -79.87 % change on previous year -467.3%
1976 -101.48 % change on previous year +27.1%
1977 91.28 % change on previous year -190.0%
1978 -250.66 % change on previous year -374.6%
1979 76.15 % change on previous year -130.4%
1981 142.86 % change on previous year +87.6%
1982 -80.3 % change on previous year -156.2%
1984 41.75 % change on previous year -152.0%
1985 190.62 % change on previous year +356.5%
1986 -21.05 % change on previous year -111.0%
1987 147.32 % change on previous year -799.9%
1988 -33.4 % change on previous year -122.7%
1989 -191.92 % change on previous year +474.6%
1990 287.49 % change on previous year -249.8%
1991 -81.48 % change on previous year -128.3%
1992 199.21 % change on previous year -344.5%
1993 -228.23 % change on previous year -214.6%
1994 84.56 % change on previous year -137.1%
1995 -230.5 % change on previous year -372.6%
1996 208.76 % change on previous year -190.6%
1997 -247.15 % change on previous year -218.4%
1998 216.7 % change on previous year -187.7%
1999 -191.07 % change on previous year -188.2%
2000 -48.85 % change on previous year -74.4%
2001 -2.91 % change on previous year -94.0%
2002 61.43 % change on previous year -2211.7%
2003 277.36 % change on previous year +351.5%
2004 -76.72 % change on previous year -127.7%
2005 -464.2 % change on previous year +505.1%
2006 206.65 % change on previous year -144.5%
2007 -169.26 % change on previous year -181.9%
2008 92.74 % change on previous year -154.8%
2010 -155.26 % change on previous year -267.4%
2011 -36.02 % change on previous year -76.8%
2012 74.8 % change on previous year -307.6%
2013 26.24 % change on previous year -64.9%
2014 438.56 % change on previous year +1571.3%
2015 202.3 % change on previous year -53.9%
2016 -106.02 % change on previous year -152.4%
2018 -32.2 % change on previous year -69.6%
2019 -143.04 % change on previous year +344.2%
2020 173.55 % change on previous year -221.3%
2021 367.74 % change on previous year +111.9%
2022 -1.46 % change on previous year -100.4%
2023 -47.32 % change on previous year +3149.5%
2024 -32.5 % change on previous year -31.3%
2025 -368.13 % change on previous year +1032.8%

Biggest year-on-year movements

Years where Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
2023 -3149.5% -1.46 % change on previous year -47.32 % change on previous year
2002 +2211.7% -2.91 % change on previous year 61.43 % change on previous year

Averages by decade

DecadeAverage LowestHighest Years
1950s 26.53 % change on previous year -314 % change on previous year 276.94 % change on previous year 7
1960s 59.86 % change on previous year -179.03 % change on previous year 501.86 % change on previous year 9
1970s -18.49 % change on previous year -250.66 % change on previous year 159.76 % change on previous year 9
1980s 24.48 % change on previous year -191.92 % change on previous year 190.62 % change on previous year 8
1990s 1.83 % change on previous year -247.15 % change on previous year 287.49 % change on previous year 10
2000s -13.75 % change on previous year -464.2 % change on previous year 277.36 % change on previous year 9
2010s 29.93 % change on previous year -155.26 % change on previous year 438.56 % change on previous year 9
2020s 15.31 % change on previous year -368.13 % change on previous year 367.74 % change on previous year 6

More reference data data for Seattle

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Frequently asked questions

What is cooling and heating degree days - cities and fuas — change in cooling in Seattle?
Cooling and heating degree days - cities and fuas — change in cooling in Seattle was -368.13 % change on previous year in 2025, according to Statizoid (derived).
What is the highest cooling and heating degree days - cities and fuas — change in cooling recorded in Seattle?
The highest recorded value was 501.86 % change on previous year in 1961.
What is the lowest cooling and heating degree days - cities and fuas — change in cooling recorded in Seattle?
The lowest recorded value was -464.2 % change on previous year in 2005.
How does Seattle rank for cooling and heating degree days - cities and fuas — change in cooling?
Seattle ranks 1222nd out of 1306 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — change in cooling rising or falling in Seattle?
Over the last ten years it is down 282.0%. The long-run trend across the full record is volatile.
Where does this Seattle data come from?
The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period, annual growth rate. Statizoid updates them automatically from the source API.

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Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle. Statizoid, drawing on Statizoid (derived). Retrieved 01 October 2026, from https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-change-in-cooling-degree-days-from-1981-2/seattle/

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<a href="https://reference.statizoid.com/stat/cooling-and-heating-degree-days-cities-and-fuas-change-in-cooling-degree-days-from-1981-2/seattle/">Cooling and heating degree days - Cities and FUAs — Change in cooling in Seattle</a> — Statizoid

How this figure is calculated

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period. 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 — Change in cooling degree days from 1981–2010 period to 2020–24 period, annual growth rate
Unit
% change on previous year
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
1,324 places, 93,596 data points, 1951–2025
Last refreshed

The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Change in cooling degree days from 1981–2010 period to 2020–24 period. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.