( IV ) 
ON 
THE METEOROLOGY OF ENGLAND 
DURING 
THE QUARTER ENDING DECEMBER 31, 1862. 
By JAMES GLAISHER, Esq., F.R.S., 
8EC. OF THE BRITISH MKW20R0L00ICAL SOCIETY. 
From the beginning of tlie quarter to the 17th the weather waa 
warm, the excess of temperature amounting to daily ; and to 
3j° for the 35 days ending October 17th. On the 8th a variable 
period set in and continued to the 30th, the average deficiency 
being 1 J° daily. After a week of warm weather a cold period set 
in on November 6th and continued to December 2nd, with a defi- 
ciency of 4J° daily; from December 3rd to 31st there was an excess 
of 4^° daily. 
The mean high day temperature was 1°"9 in excess in October, 
3°*4 in defect in November, and 3°"0 in excess in December. 
The mean low night temperature was 1°*7 in excess in October, 
3°'2 in defect in November, and 3°'l in excess in December. 
The mean temperature of the air was 1°*4 in excess in October, 
4°'4 in defect in November, and 3°-5 in excess in December. 
The mean temperature of the dew-point was 2°-4 in excess in 
October, 2°-6 in defect in November, and 3°*4 in excess in December ; 
the degree of humidity being above its average in October and 
November, and below in December. 
The pressure of the atmosphere was 0*03 inch in excess in 
October, and 0'05 inch in November and December. * 
The fall of rain was 4 0 inches in October, 1-0 inch in November, 
and 1*6 inch in December. The total fall for the quarter was 6-6 
inches, being ^ an inch above the average of the preceding 43 years. 
The total fall of rain for the year is 26'2 inches, being 1-2 inch 
above the average. 
The temperature of vegetation was below 30° on 26 nights; 
between 30° and 40° on 36 nights ; and above 40° on 30 nights. 
The mean temperature of the air at Greenwich in the three 
months ending November, constituting the three autumn months, 
was 49°'8, being 0°-4 above the average of the preceding 91 years. 
