As usual, there should be a bit of flexibility in there. I am not saying “oh, it’s 0C, therefore ALL water in all town is frozen , lets wait until it gets to 1C so all water melt”. But more on the line “oh, its around 0C (+ or - 5C), lets be careful while driving because some of the streets might have ice”. Farenheit freezing temp is 32 I think? Thats VERY arbitrary. A lot more than C.
Water freezes at 0°C at standard pressure, sea level.
If you are above or below, it will be different.
Saying “It’s not 0°C outside so there’s no ice on the road” is dumb. Because there could definitely be ice on the road.
You should be looking out for other things while driving. Not if the one thermometer, who knows where, is saying that it’s 0°C or not.
As usual, there should be a bit of flexibility in there. I am not saying “oh, it’s 0C, therefore ALL water in all town is frozen , lets wait until it gets to 1C so all water melt”. But more on the line “oh, its around 0C (+ or - 5C), lets be careful while driving because some of the streets might have ice”. Farenheit freezing temp is 32 I think? Thats VERY arbitrary. A lot more than C.