MR. A. \v. Preston’s meteorological notes. 
387 
high and steady, and the air very dry. The total rainfall for the 
month was 2.10 in. hut no rain fell after the nineteenth day. The 
mean temperature of the month was G1.5 degrees, which was 
slightly under average, hut that of the hrst twenty days was only 
gO. 2 degrees. The mean of the last ten days wa.s as high as 
Go degrees. 
Septemrer. 
September 1st was the hottest day of the whole summer, and 
was the warmest known in September for many years. The 
maximum shade temperature reached 83.8 degrees, and the mean 
for the day was 72.3 degrees. A distant thunderstorm during the 
following night cooled the air, and on the evening of the 4th a 
severe thunderstorm pas.sed over Norwich, attended with incessant 
vivid lightning. After this the weather continued line, warm, and 
dry, with but little exception, to the 20th, after which cooler and 
less settled conditions prevailed to the mouth’s end. The month 
Avas, however, an exceedingly line and pleasant one, with a mean 
temperature above the average, and formed a marked contrast to the 
gloomy and wet September of 1885. "Winds were chiefly south- 
Avesterly to the 13th, then north-easterly to the 24th, afterwards 
south-westerly to the end of the month. 
October. 
So fine and warm a week has rarely been recorded in October as 
that with Avhich this month opened. The mean temperature of the 
period was .59.1 degrees, or about o degrees above the average, and 
the thermometer upon the 4th rose as high as 74. G degrees. This 
temperature is said to be the highest recorded in October since 
1859. In London, 80 degrees was registered on this day. The 
remainder of the month Avas chiefly line and Avarni, the mean 
temperature being 53.01 degrees (against 45.22 degrees last year). 
It Avill be remembered that in October, 1885, the thermometer 
only reached GO degrees on one occasion. In 1886 it reached this 
point on fifteen days, and exceeded 70 degrees on three days. 
'J'he rainfall A\-as 2.30 in., against 6.77 in. in 1885. "Winds AA-ere 
from all (quarters, and a destructive gale from the south occurred 
on the 12th. The barometer Avas unsteady at times, a deep 
