The "heat Season” in NYC is October 1st-May 31st.Building owners are also required to provide tenants with heat as follows: between the hours of 6:00 am-10:00 pm if the outside temperature falls below 55 degrees 9the inside temperature is required to be at least 68 degrees) and between the hours of 10:00 pm-6:00 am if the temperature outside falls below 40 degrees 9the inside temperature is required to be at least 55 degrees).