70° Rule
And why the clouds listen

How can a temperature indicate …

Both hot and cold, and not be lukewarm?

Comparison of high and low temperatures in Naples and Gainesville

Answer: Yes, it’s called the 70° Rule. Here’s how it works: Any day that the daytime high doesn’t rise above 70° F is considered a winter day in Florida. I know that doesn’t seem “cold” by the normal standards of the Continental North, but for Florida it’s a relatively rare event. In Naples, it happens on average about 18 times per year.

Come the summer half of the year, the same 70° line serves as the threshold for ushering the afternoon buildup of clouds (and pounding rains), except it’s flipped: nighttime lows above the 70° line (not daytime highs) is the measuring stick. On average, Naples has about 140 such days (i.e. nights) each year.

Naples enjoys 3 weeks of winter to 20 weeks of summer

In summary, we can thank our lucky stars for the 70° line in south Florida. How else would we ever discern between summer and winter?

[social_warfare ]
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