The objective of this study was to evaluate the long-term effects of the amount of milk consumed pre-weaning and health status on predicted BW of growing heifers. Daily milk consumption, serum total protein, pneumonia and scours incidences, and BW were recorded on a commercial dairy farm from October 29, 2015 to September 15, 2017. Calves (n = 5,234) were fed pasteurized milk with a 30% protein 5% fat milk enhancer added at 20 g/L of milk through a Foerster-Technik automated calf feeding system (pens = 4; feeders per pen = 2) for 59.7 d ± 3.90 (mean ± SD). Calves were weighed at birth and up to 5 other times before calving. Average BW of calves at birth was 41.1 ± 4.66 kg (mean ± SD) and serum total protein was 6.4 ± 0.56 mg/dL (mean ± SD). Daily BW up to 400 d were predicted for individual animals using Legendre polynomials to best model growth data. Effects of milk consumption at 2 time points (either up to 30 d of age or total until weaning), serum total protein, and incidence of pneumonia and scours on predicted BW at 365 d were evaluated using a multiple regression model. Milk consumption up to 30 d had a linear effect on predicted BW at 365 d (P < 0.0001); and each additional L of milk consumed up to 30 d of age resulted in an additional 0.27 kg of predicted BW at 365 d (P < 0.0001). Serum total protein did not significantly affect predicted BW (P > 0.30). Total milk consumption had a quadratic effect on predicted BW at 365 d (P < 0.0001); such that after ~550 L of total milk consumption, the effect of each additional liter of milk consumed had a reduced effect on predicted BW at 365 d. The number of incidences of pneumonia significantly affected predicted BW (P < 0.0001). If an animal was diagnosed with pneumonia 3 or more times, the predicted BW at 365 d was 12.7 kg less than animals that never were diagnosed with pneumonia (P < 0.0001). Milk consumption and the incidence of pneumonia were both important factors that affected predicted BW of animals up to 1 yr of age.