duh - thanks Emma. Okay - now just to prove I'm really stupid - how do you know what the temperature is? As far as I can tell the sim's individual temperature bars only show red, green and blue - not an actual temperature.
Also I do have JMs no uneeded coats hack - maybe that's why my townies aren't wearing their coats?
I don't have that hack and sims coming to my lots appear to wear coats at random. The welcome wagon never seem to wear coats. Walkbys often do in the winter and spring, invited guests occasionally do. Obviously this must be linked to the temperature being below -70 but it still looks random. It's especially odd because sometimes when I greet the guests and they come inside then immediately head outside again they will pause at the door to change into outerwear. Surely the temperature hasn't dropped the much in the time it's taken them to walk to the back door?
You can tell what the temperature is by downloading the lotdebugger (available in The Firing Range) and placing it on the lot. Clicking on it gives you the option Info>Temperature Stats (or something similar). An info box then pops up in the top right corner to tell you the temperature on the lot as well as various other temperature stats.