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

New Haven: Cooling and heating degree days - Cities and FUAs — Change in cooling was -223.19 % change on previous year in 2025. ◆ Volatile

Latest (2025)
-223.19 % change on previous year
Change on year
down 149.5%
Rank
1056th
of 1306 regions
All-time high
828.45 % change on previous year
in 1953
All-time low
-881.4 % change on previous year
in 1962
Years of data
72
1951–2025

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

-1.0k-50005001.0k195119882025

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

Analysis

In 2025, cooling and heating degree days - cities and fuas — change in cooling in New Haven stood at -223.19 % change on previous year.

Compared with earlier readings it is down 149.5% on the previous year and down 200.3% over ten years.

Over the whole period, cooling and heating degree days - cities and fuas — change in cooling in New Haven peaked at 828.45 % change on previous year in 1953 and was at its lowest, -881.4 % change on previous year, in 1962.

New Haven ranks 1056th of 1306 regions on this measure, 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 New Haven, 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 New Haven, 1951 to 2025.
Year % change on previous year Change
1951 21.79 % change on previous year —
1952 105.47 % change on previous year +383.9%
1953 828.45 % change on previous year +685.5%
1954 -283.1 % change on previous year -134.2%
1955 149.4 % change on previous year -152.8%
1956 -285.64 % change on previous year -291.2%
1957 135.94 % change on previous year -147.6%
1958 -472.06 % change on previous year -447.3%
1959 138.34 % change on previous year -129.3%
1960 -399.6 % change on previous year -388.8%
1961 93.38 % change on previous year -123.4%
1962 -881.4 % change on previous year -1043.9%
1963 84.5 % change on previous year -109.6%
1964 -150.6 % change on previous year -278.2%
1965 16.19 % change on previous year -110.8%
1966 327.41 % change on previous year +1922.0%
1967 -318.98 % change on previous year -197.4%
1968 109.29 % change on previous year -134.3%
1969 -590.22 % change on previous year -640.1%
1970 89.91 % change on previous year -115.2%
1971 99.78 % change on previous year +11.0%
1973 117.91 % change on previous year +18.2%
1974 -270.23 % change on previous year -329.2%
1975 67.11 % change on previous year -124.8%
1976 -50.33 % change on previous year -175.0%
1977 168.12 % change on previous year -434.0%
1978 -673.13 % change on previous year -500.4%
1979 37.36 % change on previous year -105.6%
1980 252.9 % change on previous year +576.9%
1981 -133.16 % change on previous year -152.7%
1982 -167.34 % change on previous year +25.7%
1983 299.14 % change on previous year -278.8%
1984 -140.14 % change on previous year -146.8%
1985 -23.45 % change on previous year -83.3%
1986 -17.72 % change on previous year -24.4%
1987 87.5 % change on previous year -593.8%
1989 -189.16 % change on previous year -316.2%
1990 43.45 % change on previous year -123.0%
1991 343.14 % change on previous year +689.7%
1992 -233.69 % change on previous year -168.1%
1993 141.51 % change on previous year -160.6%
1994 -110.1 % change on previous year -177.8%
1995 805.29 % change on previous year -831.4%
1996 -369.24 % change on previous year -145.9%
1997 55.94 % change on previous year -115.2%
1998 127.62 % change on previous year +128.1%
1999 608.04 % change on previous year +376.4%
2000 -227.27 % change on previous year -137.4%
2001 97.16 % change on previous year -142.7%
2003 -160.14 % change on previous year -264.8%
2004 -18.1 % change on previous year -88.7%
2005 242.7 % change on previous year -1441.1%
2006 -94.1 % change on previous year -138.8%
2007 773.67 % change on previous year -922.2%
2008 -75.17 % change on previous year -109.7%
2009 -625.41 % change on previous year +732.0%
2010 312.68 % change on previous year -150.0%
2011 -84.68 % change on previous year -127.1%
2012 255.23 % change on previous year -401.4%
2013 -65.26 % change on previous year -125.6%
2014 -232.05 % change on previous year +255.6%
2015 222.51 % change on previous year -195.9%
2016 102.31 % change on previous year -54.0%
2017 -126.74 % change on previous year -223.9%
2018 339.97 % change on previous year -368.2%
2019 -48.42 % change on previous year -114.2%
2020 199.8 % change on previous year -512.6%
2021 -82.2 % change on previous year -141.1%
2022 378.42 % change on previous year -560.4%
2023 -119.02 % change on previous year -131.5%
2024 451.07 % change on previous year -479.0%
2025 -223.19 % change on previous year -149.5%

Averages by decade

DecadeAverage LowestHighest Years
1950s 37.62 % change on previous year -472.06 % change on previous year 828.45 % change on previous year 9
1960s -171 % change on previous year -881.4 % change on previous year 327.41 % change on previous year 10
1970s -45.95 % change on previous year -673.13 % change on previous year 168.12 % change on previous year 9
1980s -3.49 % change on previous year -189.16 % change on previous year 299.14 % change on previous year 9
1990s 141.2 % change on previous year -369.24 % change on previous year 805.29 % change on previous year 10
2000s -9.63 % change on previous year -625.41 % change on previous year 773.67 % change on previous year 9
2010s 67.55 % change on previous year -232.05 % change on previous year 339.97 % change on previous year 10
2020s 100.81 % change on previous year -223.19 % change on previous year 451.07 % change on previous year 6

More reference data data for New Haven

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Frequently asked questions

What is cooling and heating degree days - cities and fuas — change in cooling in New Haven?
Cooling and heating degree days - cities and fuas — change in cooling in New Haven was -223.19 % 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 New Haven?
The highest recorded value was 828.45 % change on previous year in 1953.
What is the lowest cooling and heating degree days - cities and fuas — change in cooling recorded in New Haven?
The lowest recorded value was -881.4 % change on previous year in 1962.
How does New Haven rank for cooling and heating degree days - cities and fuas — change in cooling?
New Haven ranks 1056th out of 1306 regions with data for 2025.
Is cooling and heating degree days - cities and fuas — change in cooling rising or falling in New Haven?
Over the last ten years it is down 200.3%. The long-run trend across the full record is volatile.
Where does this New Haven 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 New Haven. 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/new-haven/

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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/new-haven/">Cooling and heating degree days - Cities and FUAs — Change in cooling in New Haven</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.