Cooling and heating degree days - Cities and FUAs — Cooling degree in Ottawa
Ottawa: Cooling and heating degree days - Cities and FUAs — Cooling degree was -30.85 % change on previous year in 2025. ◆ Volatile
Cooling and heating degree days - Cities and FUAs — Cooling degree in Ottawa, 1951–2025
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
In 2025, cooling and heating degree days - cities and fuas — cooling degree in Ottawa stood at -30.85 % change on previous year.
That represents a change of down 508.0% on the previous year and down 161.2% over ten years.
Over the whole period, cooling and heating degree days - cities and fuas — cooling degree in Ottawa peaked at 367.29 % change on previous year in 1955 and was at its lowest, -76.37 % change on previous year, in 2000.
Ottawa ranks 538th of 1306 regions on this measure, in the middle of the range.
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 Ottawa, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1951 | 4.91 % change on previous year | — |
| 1952 | 66.8 % change on previous year | +1260.2% |
| 1953 | 24.88 % change on previous year | -62.8% |
| 1954 | -63.5 % change on previous year | -355.2% |
| 1955 | 367.29 % change on previous year | -678.4% |
| 1956 | -74.87 % change on previous year | -120.4% |
| 1957 | 41.07 % change on previous year | -154.9% |
| 1958 | -12.27 % change on previous year | -129.9% |
| 1959 | 130.6 % change on previous year | -1164.0% |
| 1960 | -44.22 % change on previous year | -133.9% |
| 1961 | -7.7 % change on previous year | -82.6% |
| 1962 | 13.48 % change on previous year | -275.2% |
| 1963 | 14.23 % change on previous year | +5.5% |
| 1964 | -6.52 % change on previous year | -145.8% |
| 1965 | -3.99 % change on previous year | -38.7% |
| 1966 | 23.55 % change on previous year | -689.9% |
| 1967 | -38.41 % change on previous year | -263.1% |
| 1968 | 8.54 % change on previous year | -122.2% |
| 1969 | 18.91 % change on previous year | +121.4% |
| 1970 | 11.84 % change on previous year | -37.4% |
| 1971 | -2.43 % change on previous year | -120.5% |
| 1972 | -30.55 % change on previous year | +1157.4% |
| 1973 | 85.53 % change on previous year | -380.0% |
| 1974 | -44.79 % change on previous year | -152.4% |
| 1975 | 126.2 % change on previous year | -381.8% |
| 1976 | -47.62 % change on previous year | -137.7% |
| 1977 | 18.71 % change on previous year | -139.3% |
| 1978 | 20.66 % change on previous year | +10.4% |
| 1979 | -23.81 % change on previous year | -215.2% |
| 1980 | -19.35 % change on previous year | -18.7% |
| 1981 | -1.88 % change on previous year | -90.3% |
| 1982 | 13.2 % change on previous year | -803.0% |
| 1983 | 84.47 % change on previous year | +540.0% |
| 1984 | -48.31 % change on previous year | -157.2% |
| 1985 | -3.27 % change on previous year | -93.2% |
| 1986 | -25.27 % change on previous year | +672.9% |
| 1987 | 105.57 % change on previous year | -517.8% |
| 1988 | 43.75 % change on previous year | -58.6% |
| 1989 | -36.36 % change on previous year | -183.1% |
| 1990 | -5.95 % change on previous year | -83.6% |
| 1991 | 43.26 % change on previous year | -827.6% |
| 1992 | -70.75 % change on previous year | -263.5% |
| 1993 | 120.77 % change on previous year | -270.7% |
| 1994 | -13.04 % change on previous year | -110.8% |
| 1995 | 83.82 % change on previous year | -742.9% |
| 1996 | -58.2 % change on previous year | -169.4% |
| 1997 | 37.49 % change on previous year | -164.4% |
| 1998 | 20.41 % change on previous year | -45.6% |
| 1999 | 56.59 % change on previous year | +177.3% |
| 2000 | -76.37 % change on previous year | -234.9% |
| 2001 | 270.51 % change on previous year | -454.2% |
| 2002 | -0.311 % change on previous year | -100.1% |
| 2003 | -32.51 % change on previous year | +10352.5% |
| 2004 | -39.03 % change on previous year | +20.1% |
| 2005 | 193.26 % change on previous year | -595.2% |
| 2006 | -43.43 % change on previous year | -122.5% |
| 2007 | 25.16 % change on previous year | -157.9% |
| 2008 | -46.56 % change on previous year | -285.1% |
| 2009 | -9.86 % change on previous year | -78.8% |
| 2010 | 130.86 % change on previous year | -1427.2% |
| 2011 | -12.36 % change on previous year | -109.4% |
| 2012 | 26.99 % change on previous year | -318.3% |
| 2013 | -41.35 % change on previous year | -253.2% |
| 2014 | -17.12 % change on previous year | -58.6% |
| 2015 | 50.45 % change on previous year | -394.7% |
| 2016 | 51.85 % change on previous year | +2.8% |
| 2017 | -48.51 % change on previous year | -193.6% |
| 2018 | 106 % change on previous year | -318.5% |
| 2019 | -42.63 % change on previous year | -140.2% |
| 2020 | 59.17 % change on previous year | -238.8% |
| 2021 | -16.67 % change on previous year | -128.2% |
| 2022 | -21.77 % change on previous year | +30.6% |
| 2023 | 6.46 % change on previous year | -129.6% |
| 2024 | 7.56 % change on previous year | +17.1% |
| 2025 | -30.85 % change on previous year | -508.0% |
Biggest year-on-year movements
Years where Cooling and heating degree days - Cities and FUAs — Cooling degree in Ottawa 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.
| Year | Change | From | To |
|---|---|---|---|
| 2003 | -10352.5% | -0.311 % change on previous year | -32.51 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 53.88 % change on previous year | -74.87 % change on previous year | 367.29 % change on previous year | 9 |
| 1960s | -2.21 % change on previous year | -44.22 % change on previous year | 23.55 % change on previous year | 10 |
| 1970s | 11.37 % change on previous year | -47.62 % change on previous year | 126.2 % change on previous year | 10 |
| 1980s | 11.26 % change on previous year | -48.31 % change on previous year | 105.57 % change on previous year | 10 |
| 1990s | 21.44 % change on previous year | -70.75 % change on previous year | 120.77 % change on previous year | 10 |
| 2000s | 24.09 % change on previous year | -76.37 % change on previous year | 270.51 % change on previous year | 10 |
| 2010s | 20.42 % change on previous year | -48.51 % change on previous year | 130.86 % change on previous year | 10 |
| 2020s | 0.6484 % change on previous year | -30.85 % change on previous year | 59.17 % change on previous year | 6 |
More reference data data for Ottawa
- Cooling and heating degree days - Cities and FUAs — Change in cooling -206.03 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs, annual growth rate 15.8 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating 89.51 % change on previous year (2025)
- Cooling and heating degree days - Cities and FUAs — Change in heating -57.54 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Cooling degree 86.58 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs — Change in cooling -19.88 Degree days (2025)
- Cooling and heating degree days - Cities and FUAs 3,599 Degree days (2025)
- Precipitation - Cities and FUAs — Extreme precipitation days 9.18 Days per year (2024)
- Precipitation - Cities and FUAs — Change in extreme precipitation 0.8386 Days per year (2024)
- Dependency ratio - Cities and FUAs 25.3 Percentage of population aged 15-64 years (2021)
Frequently asked questions
- What is cooling and heating degree days - cities and fuas — cooling degree in Ottawa?
- Cooling and heating degree days - cities and fuas — cooling degree in Ottawa was -30.85 % 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 Ottawa?
- The highest recorded value was 367.29 % change on previous year in 1955.
- What is the lowest cooling and heating degree days - cities and fuas — cooling degree recorded in Ottawa?
- The lowest recorded value was -76.37 % change on previous year in 2000.
- How does Ottawa rank for cooling and heating degree days - cities and fuas — cooling degree?
- Ottawa ranks 538th out of 1306 regions with data for 2025.
- Is cooling and heating degree days - cities and fuas — cooling degree rising or falling in Ottawa?
- Over the last ten years it is down 161.2%. The long-run trend across the full record is volatile.
- Where does this Ottawa 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.