0°F is literally freezing outside too

32°C is 90°F

90°F is a very hot day. Extremely hot is 100°F (38°C).

50°F is where you’d slowly die being naked.

75°F is room temperature

25°F water is definitely frozen

Hot tubs are 100°F

Saunas are 200°F

-20°C to 40°C

Or

0°F to 100°F

10°C is about 50°F

20°C is about 75°F

-20,(-10), 0, 10, 20, (30), 40

Or

0, (14), 25, 50, 75, (86), 100

They are both easy once you know the scale

-40° is where they both line up.