Cooling and heating degree days - Cities and FUAs — Cooling degree in Delaware
Delaware: Cooling and heating degree days - Cities and FUAs — Cooling degree was -27.84 % change on previous year in 2025. ◆ Volatile
Latest (2025)
-27.84 % change on previous year
Change on year
down 249.5%
Rank
9th
of 16 groups
All-time high
110.44 % change on previous year
in 2010
All-time low
-65.01 % change on previous year
in 1992
Years of data
75
1951–2025
Cooling and heating degree days - Cities and FUAs — Cooling degree in Delaware, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
The most recent figure for cooling and heating degree days - cities and fuas — cooling degree in Delaware is -27.84 % change on previous year, measured in 2025.
That represents a change of down 249.5% on the previous year and down 6,638.9% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in Delaware peaked at 110.44 % change on previous year in 2010 and was at its lowest, -65.01 % change on previous year, in 1992.
The series is highly variable year to year, so single readings are best treated with caution.
Cooling and heating degree days - Cities and FUAs — Cooling degree in Delaware, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | 54.34 % change on previous year | — |
| 1952 | 56.72 % change on previous year | +4.4% |
| 1953 | 3.67 % change on previous year | -93.5% |
| 1954 | -2.32 % change on previous year | -163.2% |
| 1955 | -4.89 % change on previous year | +111.1% |
| 1956 | -34.94 % change on previous year | +614.3% |
| 1957 | 2.73 % change on previous year | -107.8% |
| 1958 | -29.34 % change on previous year | -1174.0% |
| 1959 | 108.21 % change on previous year | -468.8% |
| 1960 | -42.46 % change on previous year | -139.2% |
| 1961 | 6.38 % change on previous year | -115.0% |
| 1962 | 10.94 % change on previous year | +71.3% |
| 1963 | -17.16 % change on previous year | -256.9% |
| 1964 | 49.02 % change on previous year | -385.6% |
| 1965 | -27.53 % change on previous year | -156.2% |
| 1966 | 13.71 % change on previous year | -149.8% |
| 1967 | -29.27 % change on previous year | -313.5% |
| 1968 | 38.77 % change on previous year | -232.4% |
| 1969 | -3.84 % change on previous year | -109.9% |
| 1970 | 20.52 % change on previous year | -634.2% |
| 1971 | -1.92 % change on previous year | -109.3% |
| 1972 | -27.48 % change on previous year | +1333.1% |
| 1973 | 18.24 % change on previous year | -166.4% |
| 1974 | -27.52 % change on previous year | -250.9% |
| 1975 | 42.23 % change on previous year | -253.4% |
| 1976 | -17.67 % change on previous year | -141.9% |
| 1977 | 44.32 % change on previous year | -350.8% |
| 1978 | -10.18 % change on previous year | -123.0% |
| 1979 | -33.15 % change on previous year | +225.6% |
| 1980 | 65.56 % change on previous year | -297.7% |
| 1981 | -40.61 % change on previous year | -161.9% |
| 1982 | 8.91 % change on previous year | -121.9% |
| 1983 | 104.17 % change on previous year | +1069.2% |
| 1984 | -39.02 % change on previous year | -137.5% |
| 1985 | -5.12 % change on previous year | -86.9% |
| 1986 | 13.29 % change on previous year | -359.5% |
| 1987 | 27.84 % change on previous year | +109.5% |
| 1988 | 31.2 % change on previous year | +12.1% |
| 1989 | -51.97 % change on previous year | -266.5% |
| 1990 | 4.28 % change on previous year | -108.2% |
| 1991 | 86.04 % change on previous year | +1910.5% |
| 1992 | -65.01 % change on previous year | -175.6% |
| 1993 | 77.89 % change on previous year | -219.8% |
| 1994 | 6.12 % change on previous year | -92.1% |
| 1995 | 11.51 % change on previous year | +88.1% |
| 1996 | -18.73 % change on previous year | -262.7% |
| 1997 | -20.16 % change on previous year | +7.7% |
| 1998 | 47.81 % change on previous year | -337.2% |
| 1999 | 19.49 % change on previous year | -59.2% |
| 2000 | -46.86 % change on previous year | -340.5% |
| 2001 | 32.44 % change on previous year | -169.2% |
| 2002 | 54.15 % change on previous year | +66.9% |
| 2003 | -53.92 % change on previous year | -199.6% |
| 2004 | 19.8 % change on previous year | -136.7% |
| 2005 | 69.77 % change on previous year | +252.4% |
| 2006 | -32 % change on previous year | -145.9% |
| 2007 | 65.51 % change on previous year | -304.7% |
| 2008 | -30.92 % change on previous year | -147.2% |
| 2009 | -32.4 % change on previous year | +4.8% |
| 2010 | 110.44 % change on previous year | -440.9% |
| 2011 | -0.2679 % change on previous year | -100.2% |
| 2012 | 19.35 % change on previous year | -7324.5% |
| 2013 | -42.76 % change on previous year | -321.0% |
| 2014 | -12.73 % change on previous year | -70.2% |
| 2015 | -0.4132 % change on previous year | -96.8% |
| 2016 | 57.79 % change on previous year | -14087.2% |
| 2017 | -30.09 % change on previous year | -152.1% |
| 2018 | 38.24 % change on previous year | -227.1% |
| 2019 | -9.84 % change on previous year | -125.7% |
| 2020 | 6.86 % change on previous year | -169.7% |
| 2021 | -0.7665 % change on previous year | -111.2% |
| 2022 | -5.74 % change on previous year | +649.0% |
| 2023 | -17.53 % change on previous year | +205.4% |
| 2024 | 18.62 % change on previous year | -206.2% |
| 2025 | -27.84 % change on previous year | -249.5% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 17.13 % change on previous year | -34.94 % change on previous year | 108.21 % change on previous year | 9 |
| 1960s | -0.1448 % change on previous year | -42.46 % change on previous year | 49.02 % change on previous year | 10 |
| 1970s | 0.7384 % change on previous year | -33.15 % change on previous year | 44.32 % change on previous year | 10 |
| 1980s | 11.43 % change on previous year | -51.97 % change on previous year | 104.17 % change on previous year | 10 |
| 1990s | 14.92 % change on previous year | -65.01 % change on previous year | 86.04 % change on previous year | 10 |
| 2000s | 4.56 % change on previous year | -53.92 % change on previous year | 69.77 % change on previous year | 10 |
| 2010s | 12.97 % change on previous year | -42.76 % change on previous year | 110.44 % change on previous year | 10 |
| 2020s | -4.4 % change on previous year | -27.84 % change on previous year | 18.62 % change on previous year | 6 |
More reference data data for Delaware
- Cooling and heating degree days - Cities and FUAs — Change in cooling -43.17 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -236.12 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 15.08 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 71.22 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -124.7 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 2,354 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 194.08 Degree days (2025)
- Precipitation - Cities and FUAs — Change in extreme precipitation -0.554 Days per year (2024)
- Precipitation - Cities and FUAs — Extreme precipitation days 9.9 Days per year (2024)
- Exposure to extreme precipitation — Annual precipitation change 19.09 Millimetres per year (2023)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — cooling degree in Delaware?
- Cooling and heating degree days - cities and fuas — cooling degree in Delaware was -27.84 % change on previous year in 2025, according to Statizoid (derived).
- What is the highest cooling and heating degree days - cities and fuas — cooling degree recorded in Delaware?
- The highest recorded value was 110.44 % change on previous year in 2010.
- What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in Delaware?
- The lowest recorded value was -65.01 % change on previous year in 1992.
- How does Delaware rank for cooling and heating degree days - cities and fuas — cooling degree?
- Delaware ranks 9th out of 16 groups with data for 2025.
- Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in Delaware?
- Over the last ten years it is down 6,638.9%. The long-run trend across the full record is volatile.
- Where does this Delaware data come from?
- The figures come from Statizoid (derived), published as part of Cooling and heating degree days - Cities and FUAs — Cooling degree days, annual growth rate. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 75 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Cooling degree days. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Cooling and heating degree days - Cities and FUAs — Cooling degree Organisation for Economic Co-operation and Development
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
The year-on-year percentage change in Cooling and heating degree days - Cities and FUAs — Cooling degree days. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.