February 31

February 31 or 31 February does not exist in both Julian calendar and Gregorian calendar. It is used on gravestones when the date is never really known.^[1]

It is also used (with February 32 and February 33) for weather data.^[2]

Deaths

1831 - Rachael Mack^[1]

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References

↑ ^1.0 ^1.1 "February 31 on Gravestone | Swampy Acres Farm Blog". Archived from the original on 2018-12-19. Retrieved 2019-02-23.
↑ J. D. Everett (1863). "Description of a method of Reducing Observations of Temperature". The American Journal of Science and Arts. S. Converse: 23.

[feb31gravestone-1] 1.0 ^1.1 "February 31 on Gravestone | Swampy Acres Farm Blog". Archived from the original on 2018-12-19. Retrieved 2019-02-23.

[2] J. D. Everett (1863). "Description of a method of Reducing Observations of Temperature". The American Journal of Science and Arts. S. Converse: 23.

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