Humidity

Examining the scatter plot, it is difficult to find any obvious correlation between latitude and humidity. The percentages of humidity appear to be much more clustered in a 60% or higher range as cities are located closer to the equator.

Statistical Analysis

Northern Hemisphere

The statistical analysis for the northern hemisphere produced a low R-squared value of 0.018.

Southern Hemisphere

For the southern hemisphere, the R-squared value was only 0.0097. The nearly horizontal linear regression line additionally indicates a poor correlation between humidity percentage and latitude.

Conclusion

Overall, only marginal proportions of variation in humidity can be attributed to the latitude.