4 ms·

But local changes of environment would have been expected to increase temperature readings? More asphalt, more buildings...

• jacquesm 4y ago
  Not necessarily, it could just as easily go the other way (thermal sink dropping the average).
  • tnvaught 4y ago
    Huh? https://en.wikipedia.org/wiki/Urban_heat_island https://en.wikipedia.org/wiki/Urban_heat_island