10C is cool
20C is nice
30C is warm
40C is hot
10C is cool
20C is nice
30C is warm
40C is hot
-20°C is uncomfortably cold
-10°C is cold
Around 0°C, temperature is not the issue. Water, snow, and ice are.
+5°C is cool
+10°C is nice and cool
+15°C is nice
+20°C is nice and warm
+25°C is warm
+30°C is hot
+35°C is uncomfortably hot
+40°C is too hot
10c = very cold
15c = cold
20c = cool
25c = nice
30c = i want air blown at me
35c = need more air (roughly the same for 37)
40c = its hot, need cool air
45c+ = very hot, do something
10C cold
15C cool
20C nice
25C warm
30C hot
0C is cold
10C is not
20C is warm
30C is hot
which rhymes
30 is hot
20 is nice
10 is cold
0 is ice
It's pretty common for English poetry and songs to only rhyme every other line
https://en.m.wikipedia.org/wiki/Rhyme_scheme
A more notable version of the same idea, which includes more unrhymed lines, is double dactyl (XXXA XXXA). Though this is more for poetry/limerick, and not for mnemonics.