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Sydney Average Temperature vs US Fertility Rate
Sydney Average Temperature and US Fertility Rate correlate at r = -0.31 over 64 years (1960–2023), p = 0.014. With the time trend removed, r = +0.14. Holds up after detrending.
Verdict: Holds up after detrending. Statistically significant (p = 0.014) and the association survives trend removal (detrended r = 0.14). Correlation still isn't causation, but this one isn't an obvious artifact.
- Pearson r
- -0.31
- p-value
- 0.014
- Years compared (n)
- 64 (1960–2023)
- 95% confidence interval
- -0.51 to -0.06
- Correlation with the time trend removed
- +0.14
Sources
- Sydney Average Temperature (°C): Open-Meteo (ERA5). Annual mean 2m air temperature for Sydney from the ERA5 reanalysis.
- US Fertility Rate (children per woman): Our World in Data. US Fertility Rate (Our World in Data: Total fertility rate).
Related pairs
- US Fertility Rate vs US Birth Rate (r = +0.91)
- US Fertility Rate vs US R&D Expenditure (r = -0.89)
- US Fertility Rate vs US Annual Working Hours per Worker (r = +0.87)
- US Dollar to British Pound vs US Fertility Rate (r = -0.86)
- US Fertility Rate vs US Wind Power Generation (r = -0.86)
- US Fertility Rate vs US Solar Energy Consumption (r = -0.81)
Correlation does not imply causation. How the verdict is worked out.