Lynchburg has a four-season humid subtropical climate , with cool winters and hot, humid summers. The monthly daily average temperature ranges from 35.1 °F (1.7 °C) in January to 75.3 °F (24.1 °C) in July. Nights tend to be significantly cooler than days throughout much of the year due in part to the moderate elevation. In a typical year, there are 26 days with a high temperature 90 °F (32 °C) or above, and 7.5 days with a high of 32 °F (0 °C) or below. Snowfall averages 12.9 inches (33 cm) per season but this amount varies highly with each winter; the snowiest winter is 1995–96 with 56.8 in (144 cm) of snow, but the following winter recorded only trace amounts, the least on record.
Temperature extremes range from 106 °F (41 °C), recorded on July 10, 1936, down to −10 °F (−23 °C), recorded on January 21, 1985 and February 5, 1996. However, several decades may pass between 100 °F (38 °C) and 0 °F (−18 °C) readings, with the last such occurrences being July 8, 2012 and February 20, 2015, respectively.