Lancaster CA temperature averages
Most / Least Educated Cities in CA. The average temperature of Lancaster is 59.66Â°F, which is lower than the California average temperature of 61.17Â°F and is much higher than the national average temperature of 54.45Â°F.lease note, the actual heating cost and cooling cost are also dependent on other factors specific to individual residences such as the size of the house, the insulation condition, and the equipment efficiency, etc.