Why do some temperature records endure?


The human brain is wired to seek patterns in its environment. From babyhood we look for faces, and see them everywhere – in clouds, wallpaper, even rock profiles. I see and wonder about patterns in weather statistics.

 For example, why have 10 of the 30 record-high daily minimum temperatures for Baltimore in September endured since the 1800s?

One streak of four from 1881 still stands: From Sept. 27 to 30, the daily low never fell below 73.

And 24 of the 30 records were set before 1933. Why?

(PHOTO: New Hampshire's Old Man of the Mountains. The profile collapsed in 2003. Wikipedia Commons)

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