I’m likely moving to Mexico next year, so I’ve switched the temperature reading on my watch to Celsius in preparation. The problem is that bands of ten degrees in Fahrenheit translate nicely to comfort levels,¹ which is not really true for Celsius, or at least I’m still adapting to get a sense of what those numbers mean in practice.

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1. For the record:

below 0: Stay inside, drink warm cocoa

0–10: Only go out if you have to

10–20: Cold, but doable

20–30: Nice winter-sports temperature

30–40: Cold, but you could run out to the garage without a coat if you had to

40–50: Cold, but you don’t need a scarf or gloves

50–60: Cool. wear a jacket

60–70: Cool, wear a light jacket

70–80: Perfect

80–90: Warm, but not too bad. Go to the pool.

90–100: Ugh, hot. Tell your parents that you’ll pay their electric bill if necessary but they need to turn on the air conditioning.

100+: Stay inside, eat ice cream.