Figure 1. Pearson’s Correlation Coefficient analysis between total COVID-19 cases and average maximum temperature in April 2020 in 50 of the largest cities in each state. Outlier data point represents New York City COVID-19 cases (r = -.097, P>.05)

From

The Effect of Temperature, Dewpoint, and Population Density on COVID-19 Transmission in the United States: A Comparative Study

Virginia C. Hughes

American Journal of Public Health Research. 2020, 8(4), 112-117 doi:10.12691/ajphr-8-4-2