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It is also used (with February 32 and February 33) for weather data.
Deaths[change | change source]
References[change | change source]
- "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.