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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]
- J. D. Everett (1863). "Description of a method of Reducing Observations of Temperature". The American Journal of Science and Arts (S. Converse): 23. https://books.google.com/books?id=qjtSAQAAMAAJ&pg=PA23&hl=en&sa=X&ved=0ahUKEwivgsH90PvcAhWpwVkKHdBmAxI4HhDoAQg_MAQ#v=onepage&f=false.