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. 2022 Dec 1;6(12):e2022GH000695. doi: 10.1029/2022GH000695

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© 2022 The Authors. GeoHealth published by Wiley Periodicals LLC on behalf of American Geophysical Union.

This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.

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Distribution of Census Tract Heat Vulnerability Index (HVI) Scores for Home Owners Loan Corporation (HOLC) Grades. “HOLC Grade” x‐axis label represents HOLC lending risk grade. Grade D represents historically “redlined” census tracts. Differences in HVI scores between adjacent HOLC grades were statistically significant (p‐value < 0.001) according to post‐hoc honest significant difference tests. Boxes depict HVI score interquartile range for each HOLC grade stratum. The middle line within the box marks the median HVI score for each HOLC grade. N = 10,701 census tracts with both a HOLC grade and complete data to calculate an HVI score.