The conversion

92°F = 33.33°C

°C = (°F − 32) × 5/9, so (92 − 32) × 5/9 = 33.33.

As an outdoor air temperature, 92 °F sits in the hot band. The other scale is on the dial beside it in the app, so a reading like this needs no conversion at all.

Convert something else

68°F

The range either side

Neighbouring values, for when the number you actually wanted was a degree or two away.

Fahrenheit to Celsius either side of 92 °F.
FahrenheitCelsius
87 °F30.56 °C
88 °F31.11 °C
89 °F31.67 °C
90 °F32.22 °C
91 °F32.78 °C
92 °F33.33 °C
93 °F33.89 °C
94 °F34.44 °C
95 °F35 °C
96 °F35.56 °C
97 °F36.11 °C

The other direction

33.33 °C converts back to 92 °F, which is the same relationship read the other way. Going from Celsius to Fahrenheit, multiply by 9/5 first and then add 32. Adding first is the usual mistake.

The full converter handles any value, in either direction, including kelvin, and shows the formula as it works.