Surface Air Temperature (K):
  - light blue = below 200 K (-73.1 C) -- extreme cold
  - purple = ~230 K (-43.4 C) -- extreme cold
  - blue = ~260 K (-13.4 C) -- cold
  - orange = ~290 K (17.1 C) -- mild
  - magenta = above 320 K (46.9 C) -- extreme heat

Color gradient runs from light blues (low values) through blues to magentas (high values).
(242 color stops total, 5 key values shown)
Transparent / no-data: No Data