( XII ) 
ON 
THE METEOROLOGY OF ENGLAND 
DDRINQ 
THE QUARTER ENDING JUNE 30, 1863. 
By JAMES GLAISHER, Esq., F.E.S., 
8EC. OF THE BEIIISH METEOEOLOOICAL SOCIETY. 
Till May 17tli, except two days at the beginning of April and 
five days at the end of April and the beginning of May, the 
temperature was in excess 2° daily. Between May 18th and May 
26th, the average daily deficiency was 6°; for a like period the 
average daily excess was 3i° ; and from June 5th to the end of the 
quarter the average deficiency amounted to 2^° daily. 
The average monthly temperature of the air, from December, 
1862, to April, 1863, was 44°-l ; in no other similar period, from 
1771, has the temperature been so high, so that we may fairly con- 
clude that the temperature for the five months ending April of this 
year is as high as any on record. 
The mean temperature of April was 49°*1, being higher than in 
any April since 1844. 
The mean temperature of May was 52°-0, being 3°-4 lower than 
in 1862, and of nearly the same value as in 1861. 
The mean temperature of June was 58°'l, being 1°"8 higher than 
in 1862, and 1° lower than in 1861. 
The mean high day temperature in April was 4i° in excess ; in 
May nearly its average ; in June 0°-9 in defect. The mean low 
night temperature in April was li° in excess ; in May li° in defect ; 
and of nearly its average in June. Therefore both the days and 
nights in April were warm, and the nights in May ; and the dUys 
in June were cold. 
The mean temperature of the air in April was 2|° in excess ; in 
May 1° in defect; and in June 1° in defect. 
The mean temperature of the dew point in April was 2i° in 
excess ; in May 0°-5 in defect ; and in June 0°'7 in defect. 
The degree of humidity and the readings of the barometer differed 
but very little from their monthly average values in any of the 
months. 
The mean temperature of the air at Greenwich in the three 
months ending May, constituting the three ispring months, was 
48'°3, being l°-9 above tho average of the preceding 92 years. 
