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London Average Temperature vs Sydney Average Temperature
London Average Temperature and Sydney Average Temperature correlate at r = +0.50 over 66 years (1960–2025), p < 0.0001. With the time trend removed, r = +0.08. Interpret with caution.
Verdict: Interpret with caution. Much of the apparent link is driven by a shared time trend: r falls from 0.50 to 0.08 once the trend is removed.
- Pearson r
- +0.50
- p-value
- < 0.0001
- Years compared (n)
- 66 (1960–2025)
- 95% confidence interval
- 0.29 to 0.66
- Correlation with the time trend removed
- +0.08
Sources
- London Average Temperature (°C): Open-Meteo (ERA5). Annual mean 2m air temperature for London from the ERA5 reanalysis.
- Sydney Average Temperature (°C): Open-Meteo (ERA5). Annual mean 2m air temperature for Sydney from the ERA5 reanalysis.
Related pairs
- London Average Temperature vs US GDP per Capita (r = +0.77)
- London Average Temperature vs US GDP (current US$) (r = +0.76)
- London Average Temperature vs Atmospheric CO₂ (Mauna Loa) (r = +0.75)
- London Average Temperature vs US Population Aged 65+ (r = +0.75)
- London Average Temperature vs Global Temperature Anomaly (r = +0.74)
- London Average Temperature vs US Population (r = +0.73)
Correlation does not imply causation. How the verdict is worked out.