Association between average maximum temperature in the three months prior to scan and antral follicle counts (AFC) among 631 women in the EARTH Study fit with a restricted cubic spline. Models were adjusted for average relative humidity (continuous) and PM2.5 exposure (continuous) in 3 months prior to AFC, age (continuous), education (<college vs. ≥college), smoking status (ever vs. never), year of AFC (continuous), month of AFC (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec), and diagnosis of diminished ovarian reserve and ovulation disorders.