p.1

This table, which has been compiled with great care from MSS. in my
possession, will be found valuable, by enabling us to compare the climate of
Milwaukee with that of other places. It will be seen that the general mean
temperature deduced from all the observations in 46.018; that the coldest
year was 1856 (41.057) differing 8.037 from the warmest year, 1845
(49.094); the coldest month is January (22.076) though in six cases February
was the coldest. January 1857 was the coldest month known since
the first settlement of the place (7 3/4º)

July is the warmest month (70.021);
July in 1854 being the warmest month observed. In 1848 June was the
warmest month; and in 1861 & 1863 August was the warmest.

The
winter and spring of 1845 were the mildest of the 18 years; the winter of 1856,
and the spring of 1857 were the coldest .The hottest summer, 1854, was followed
by the mildest autumn.

It will be noticed that no extreme of temperature
either of heat or cold, [has] indicated in the table by block figures, has occurred
since 1857. If we take the mean annual temperature of five years
together, it will be found that the term ending with 1848 was much
the warmest (48.048); the terms ending in 1853 (46.071) and in 1863
(46.036) were near[ly] the general mean; while the intermediate term
ending with 1857 was the coldest (42.056).

[In there remarks reference
is had to the general results of all the observations for a month, or year, and
not to particular days; thus although the thermometer was lower in January
1864 than in the same month in 1865, the mean result as about the
same in both.]