TMP75-Q1: Accuracy out of the temperature range of -40 to 125 degree

Tool/software:

Hi team，

As per the datasheet of TMP75, the max operating temperature is -55℃ to 127℃. And the accuracy is +/-3℃ from -40℃ to 125℃.

Could you please confirm what the accuracy is when the temperature is below -40℃？