Some have asked about the comparability of the Sunday, March 26th, 1820 weather reports at Sackets Harbor to Palmyra. There is a good answer to this good question. In the world's first weather report found in National Intelligencer there is a column that identifies the hottest day in the month of March 1820 for each of the reporting U.S. Military Posts.
From a column in the newspaper's weather report it is possible to identify that (1) Sackets Harbor, New York, (2) Boston, Massachusetts, (3) New York Harbor, New York, and (4) Fort Mufflin (Philadelphia, Pennsylvania) reported that Sunday, March 26th, was the hottest day for the month of March 1820.
These reports show that on Sunday, March 26th, 1820, in the country's Northeast Section, in an area of about 200,000 square miles, it was a clear, beautiful day. The data is in the newspaper. A cropped photo of the newspaper report is attached to the above figure. Well-trained weather experts will have more to say how these four data points remove any doubt about the comparability of March 26th weather in Sackets Harbor to Palmyra.
Comments by Dr. John C. Lefgren
Let me try to explain why I think that the newspaper report is significant. Time-specific weather observations have high historic value. I found this data from Dr. Wheaton's handwritten report to the Surgeon General in the US National Archives. The data came from Sackets Harbor for the early spring of 1820. I made a chart for the 45-day early spring period including morning temperatures and sky conditions. Some ask how comparable is the weather chart of Sackets Harbor to the weather in Palmyra. Good question. From the tables of the 1820 newspaper report, I am able to say that four Army posts reported that the March 26th weather was the hottest day for that month in 1820. All these posts are in the Northeast Section of the county. The outside boundary for these military posts encloses an area of more than 200,000 square miles. Sunday, March 26th was the hottest day for the early spring at these military posts -- Sacketts Harbor, Boston, New York, and Philadelphia. This means that by inference Palmyra was also hot. I am sure that there are well-trained experts in weather forecasting and statistical analysis that are able to look at the four data points found in the newspaper and remove any doubt about whether or not the warm weather in Sackets Harbor on that day was an excellent indication for weather in Palmyra. On March 26th there was a major weather system covering all of New England and that weather system resulted in the clear, beautiful day that Joseph Smith remembered.
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The National Archives is the U.S. Government’s collection of documents that records important events in American history. The National Archives and Records Administration (NARA) is the Government agency that preserves and maintains these materials and makes them available for research.
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