Temperatures below 0°C are rolling over

[danielfaust]

This code

"\"RHT03\":{" +
   "\"T\":" + String(rht.tempC(), 2) + "," +
   "\"H\":" + String(rht.humidity(), 2) + 
"}," +

is creating this result

"RHT03":{"T":3279.80,"H":83.30}

These where all the readings on the same board during that fetch:

{"BME280":{"T":-1.88,"H":84.75,"P":1023.99},
 "RHT03":{"T":3279.80,"H":83.30},
 "DS18B20":{
   "28CEB45204000083":{"T":-3.19,"C":1},
   "28646952040000A2":{"T":-3.19,"C":1}
 },
 "A0":{"L":2.50}
}

I consider the DS18B20's temperature readings to be the "most precise"