Weather data

It matters what the weather conditions were like outside when you took your temperature readings. The gold standard is to put a waterproof monitor outside, but a good “second best” approach is to check the historical weather record at the closest weather station you can find. You might find this useful for thinking about your temperature data.

• Simple display from “Time and Date”

Engineers and professionals may wish to plot internal against hourly external temperature, or use daily data to conduct a formal analysis of your heating controls and building’s heat loss. They use weather data more like this.

• Hourly data to download from Meteostat

• Data from visualcrossing for formal analysis