I'm using Davis Vantage Vue, so Davis' driver. The skin in neowx.
Here are few LOOP and one REC package. As far as I see both temperatures are provided in F.
LOOP: 2021-07-21 10:00:16 CEST (1626854416) altimeter: 30.0362696612, appTemp: 83.9711652735, barometer: 30.032, cloudbase: 4675.84812603, consBatteryVoltage: 4.44, dateTime: 1626854416, dayET: 0.0, dayRain: 0.0, dewpoint: 61.0462682455, extraAlarm1: 0, extraAlarm2: 0, extraAlarm3: 0, extraAlarm4: 0, extraAlarm5: 0, extraAlarm6: 0, extraAlarm7: 0, extraAlarm8: 0, forecastIcon: 6, forecastRule: 44, heatindex: 81.2791612491, humidex: 88.7588174669, inDewpoint: 57.9925092852, inHumidity: 45.0, insideAlarm: 0, inTemp: 81.4, leafWet4: 0.0, maxSolarRad: 661.218396019, monthET: 0.0, monthRain: 2.6299212605, outHumidity: 52.0, outsideAlarm1: 0, outsideAlarm2: 0, outTemp: 80.3, pressure: 29.7210291893, rain: 0.0, rainAlarm: 0, rainRate: 0.0, soilLeafAlarm1: 0, soilLeafAlarm2: 0, soilLeafAlarm3: 0, soilLeafAlarm4: 0, stormRain: 0.25984251975, stormStart: 1626732000, sunrise: 1626845100, sunset: 1626899760, trendIcon: 20, txBatteryStatus: 0, usUnits: 1, windchill: 80.3, windDir: None, windGust: 1.0, windGustDir: 82.0, windSpeed: 0.0, windSpeed10: 2.0, yearET: 0.0, yearRain: 27.8346456762
REC: 2021-07-21 10:00:00 CEST (1626854400) altimeter: 30.0362696612, appTemp: 83.
4078962735, barometer: 30.032, cloudbase: 4675.84812603, consBatteryVoltage: 4.44, dateTime: 1626854400, dayET: 0.0, dayRain: 0.0, dewpoint: 61.0462682455, ET: 0.0, extraAlarm1: 0.0, extraAlarm2: 0.0, extraAlarm3: 0.0, extraAlarm4: 0.0, extraAlarm5: 0.0, extraAlarm6: 0.0, extraAlarm7: 0.0, extraAlarm8: 0.0, extraTemp1: 100.4, forecastIcon: 6.0, forecastRule: 44, heatindex: 81.2791612491, highOutTemp: 80.3, humidex: 88.7588174669, inDewpoint: 57.9925092852, inHumidity: 45.0, insideAlarm: 0.0, inTemp: 81.4, interval: 1, leafTemp1: -90.0, leafTemp2: -82.0, leafWet1: 6.6, leafWet2: 7.6, leafWet4: 0.0, lowOutTemp: 80.2, maxSolarRad: 660.504969787, monthET: 0.0, monthRain: 2.6299212605, outHumidity: 52.0, outsideAlarm1: 0.0, outsideAlarm2: 0.0, outTemp: 80.3, pressure: 29.7210291893, radiation: 490.0, rain: 0.0, rainAlarm: 0.0, rainRate: 0.0, rxCheckPercent: 98.2291666667, soilLeafAlarm1: 0.0, soilLeafAlarm2: 0.0, soilLeafAlarm3: 0.0, soilLeafAlarm4: 0.0, soilMoist1: 1021.0, soilMoist2: 2614.0, soilMoist3: 0.0, soilMoist4: 32.0, soilTemp1: 73.85, soilTemp2: 73.29, soilTemp3: -90.0, soilTemp4: -90.0, stormRain: 0.25984251975, stormStart: 1626732000.0, strele: 0.0, sunrise: 1626845100.0, sunset: 1626899760.0, trendIcon: 20.0, txBatteryStatus: 0, usUnits: 1, windchill: 80.3, windDir: 90.0, windGust: 3.0, windGustDir: 90.0, windrun: 0.0166666666667, windSpeed: 1.0, windSpeed10: 2.0, yearET: 0.0, yearRain: 27.8346456762
LOOP: 2021-07-21 10:00:18 CEST (1626854418) altimeter: 30.0362696612, appTemp: 83.9711652735, barometer: 30.032, cloudbase: 4675.84812603, consBatteryVoltage: 4.44, dateTime: 1626854418, dayET: 0.0, dayRain: 0.0, dewpoint: 61.0462682455, extraAlarm1: 0, extraAlarm2: 0, extraAlarm3: 0, extraAlarm4: 0, extraAlarm5: 0, extraAlarm6: 0, extraAlarm7: 0, extraAlarm8: 0, forecastIcon: 6, forecastRule: 44, heatindex: 81.2791612491, humidex: 88.7588174669, inDewpoint: 57.9925092852, inHumidity: 45.0, insideAlarm: 0, inTemp: 81.4, leafWet4: 0.0, maxSolarRad: 661.307473419, monthET: 0.0, monthRain: 2.6299212605, outHumidity: 52.0, outsideAlarm1: 0, outsideAlarm2: 0, outTemp: 80.3, pressure: 29.7210291893, rain: 0.0, rainAlarm: 0, rainRate: 0.0, soilLeafAlarm1: 0, soilLeafAlarm2: 0, soilLeafAlarm3: 0, soilLeafAlarm4: 0, stormRain: 0.25984251975, stormStart: 1626732000, sunrise: 1626845100, sunset: 1626899760, trendIcon: 20, txBatteryStatus: 0, usUnits: 1, windchill: 80.3, windDir: None, windGust: 1.0, windGustDir: 82.0, windSpeed: 0.0, windSpeed10: 2.0, yearET: 0.0, yearRain: 27.8346456762
Please note that I'm using some fields (e.g. hailrate, etc.) for other sensor values (radioactivity, gamma rays, etc.).
Also, the daily, weekly and monthly plots of the InTemp all show Celsius.
Thanks.