( XII ) 

 ON 



THE METEOROLOGY OF ENGLAND 



DURING 



THE QUARTER ENDING DECEMBER 31st, 1857. 

 By JAMES G L A I S H E E, Esq., F.E.S., 



SEC. OF THE EIUTISH METKOEOLOGICAL SOCIETY. 



October. — Till the 4th the air was warm ; it was then cold until 

 the 10th ; it was then again warm till the end of the month. The 

 mean temperature of this month was 53°, being 3^° in excess. 



November was warm until the 12th; on the 12th and 13th it was 

 cold ; it was then again warm until the 24th ; from the 24th to the 

 end it was cold. The mean temperature of the month was 45°'8, 

 being 2°'2 in excess. . 



December was remai'kably Warm throughout. The mean tempera- 

 ture of the month was 45°- 1, being 5° in excess of the ayerage, and 

 due to both warm days and nights. The mean temj^erature of this 

 month has been but twice exceeded since 1771, a period of eighty- 

 six years, viz. in the years 1806 and 1852. 



The mean temperature of the dew point was above its average 

 in each month of the quarter, and in October and November to 

 greater amounts than the excesses of temperature, and consequently 

 the air was more humid than usual in those months. In December, 

 however, the excess was about the same value as that of the air. 



The fall of rain was in excess in October ; on the 22nd a very 

 heavy fall took place over the counties of Hertford, Cambridge, 

 Buckingham., Middlesex, Siu'rey, Kent, Norfolk, and Sussex ; it fell 

 to the depth of nearly 3 inches in several places. In November and 

 December the fall of rain was deficient, and was somewhat deficient 

 upon the quarter, and about 3^ inches deficient upon tbe year. 



The mean temperature of the air at Greenwich for the quarter 

 ending November, constituting the three autumnal months, was 

 52°'8, being 3°-4 above the average of the preceding eighty-six 

 years. ~ > 



