March 2021 Summary Statistics

I will present some summary statistics which can explain the trends that we observed during the month of March 2021. This complements similar reports from March, April, May, June, July, August, September, October, November, and December 2020, and January and February 2021.


Total Case Growth
Total cases on 28 February: 361,536
Total cases on 31 March: 387,277
Total case increase: 25,741

Smallest daily case increase: 591 (22 March)
Largest daily case increase: 1,308 (26 March)

Average daily increase: 830.85





Total Fatality Growth
Total fatalities on 28 February: 6,175
Total fatalities on 31 March: 6,635
Total fatality increase: 460

Smallest daily fatality increase: 3 (22 March)
Largest daily fatality increase: 66 (3 March)

Average daily increase: 14.84






State-Level Shares for March 2021

Median share of regional cases for Maryland: 45%
Median share of regional fatalities for Maryland: 50%
Maryland share of DC metropolitan-area population: 42%

Median share of regional cases for DC: 11%
Median share of regional fatalities for DC: 16%
DC share of DC metropolitan-area population: 13%

Median share of regional cases for Virginia: 44%
Median share of regional fatalities for Virginia: 34%
Virginia share of DC metropolitan-area population: 45%





Population-adjusted statistics, per 1,000 of population (data as of 31 March)
MD cases: 72.560
MD fatalities: 1.401

DC cases: 63.571
DC fatalities: 1.466

VA cases: 67.406
VA fatalities: 0.841




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