11Thomas Jefferson to Jean Baptiste Say, 2 March 1815 (Jefferson Papers)
weather; heat [index entry]
12Josephus B. Stuart’s Account of a Visit to Monticello, 24–25 December 1816 (Jefferson Papers)
weather; heat [index entry]
13Enclosure: Amos Hamlin’s Meteorological Observations, [by 12 January 1818] (Jefferson Papers)
weather; heat [index entry]
14Thomas Jefferson to Amos Hamlin, 1 April 1818 (Jefferson Papers)
weather; heat [index entry]
15Enclosure: Thomas Jefferson’s Summary of Weather Observations, 1810–1816, [ca. 11 April 1818] (Jefferson Papers)
weather; heat [index entry]
16Extract from Elizabeth Trist to Nicholas P. Trist, 3 February 1819 (Jefferson Papers)
weather; heat [index entry]
17Charles Johnston and Elizabeth Johnston to Thomas Jefferson, 21 July 1819 (Jefferson Papers)
weather; heat [index entry]
18Martha Jefferson Randolph to Thomas Jefferson, 7 August 1819 (Jefferson Papers)
weather; heat [index entry]
19Thomas Jefferson to Thomas Mann Randolph, 9 August 1819 (Jefferson Papers)
weather; heat [index entry]
20Extracts from Ellen W. Randolph (Coolidge) to Martha Jefferson Randolph, 24 August 1819 (Jefferson Papers)
weather; heat [index entry]