The Perihelion Effect

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perihelion January 4, 2020

Births and Deaths by Month, 1995-2002

Tables: Births and Deaths by Month, 1995-2002

Federal statistics show regular seasonal patterns for births and deaths in the United States: Births tend to peak in August and September, just as deaths hit their nadir.

Experts who have studied the trends don’t agree on a cause for the fluctuating birth rate — but most suggest factors including climate, biology and cultural traditions.

Death rates are believed to fluctuate according to the flu season. When flu is common, the elderly and ill are vulnerable, U.S. government demographers say.

Below are charts demonstrating the seasonal fluctuations in births and deaths over the period from 1995-2002.

U.S. Births by Month, 1995-2002
Total Births Avg. per Day
January 2,582,009 10,411.33
February 2,409,565 10,661.79
March 2,645,413 10,666.99
April 2,537,816 10,574.23
May 2,673,858 10,781.69
June 2,629,368 10,955.70
July 2,788,695 11,244.74
August 2,813,582 11,345.09
September 2,740,831 11,420.13
October 2,694,594 10,865.30
November 2,532,156 10,550.65
December 2,631,533 10,611.02
1995-2002 Total 31,679,420 10,841.69
Calculated from National Center for Health Statistics data
U.S. Deaths by Month, 1995-2002
Total Deaths Avg. per Day
January 1,824,419 7,356.53
February 1,600,464 7,081.70
March 1,694,060 6,830.89
April 1,553,365 6,472.35
May 1,544,836 6,229.18
June 1,461,902 6,091.26
July 1,495,354 6,029.65
August 1,479,771 5,966.82
September 1,452,281 6,051.17
October 1,563,801 6,305.65
November 1,560,398 6,501.66
December 1,729,926 6,975.51
1995-2002 Total 18,960,577 6,488.90
Calculated from National Center for Health Statistics data