An early morning temperature higher than 37.2 °C (99.0 °F) or a late afternoon temperature higher than 37.7 °C (99.9 °F) is normally considered a fever, assuming that the temperature is elevated due to a change in the hypothalamus's setpoint.[7] Lower thresholds are sometimes appropriate for elderly people.[7] The normal daily temperature variation is typically 0.5 °C (0.90 °F), but can be greater among people recovering from a fever.[7]