DHT11 doesn't register values under 1° C

Other Hardware Sensors
1

Hi. I have a temperature & humidity sensor DHT11, but in environments with temperatures below 1 ° C, the value remains fixed at this value. Do you know if it's a sensor's limitation or I need to integrate a particular test into the code?

2

Sensor limitation.
DHT11 only reads down to 0C.
If you need to go lower you need the DHT22.