This paper examines the seasonality of induced abortion in North Carol
ina between 1980 and 1993. Distinct seasonal patterns are found, with
a peak in February and a valley in September. These patterns correspon
d to the implicit seasonality of conceptions associated with the seaso
nality of birth pattern. One notable difference from the general patte
rn is among unmarried women aged 18 and younger. They have the Februar
y peak and an additional peak in August that may be associated with th
e summer vacation from school.