48 Summary of a Meteorological Register for 1863. 



There were four thunder-showers. Lightning without thunder 

 four times, and one rainbow was observed. 



June was about the average temperature, and generally quite 

 uniform, no very great changes occurring either in the ther- 

 mometer or the barometer. The quantity of rain was the small- 

 est of any of the ten years ; it rained on 8 days. The prevail- 

 ing wind was west. There were two thunder-showers. Light- 

 ning occurred once, alone ; thunder alone, once ; and a parhe- 

 lion was once noted. 



July was warmer than any other July for the ten years, and 

 quite uniform in temperature, but the barometer fell on the 

 20th and 21st almost half an inch. The quantity of rain was- 

 greater than in any July of the ten years. Rain fell on 20 days. 

 The prevailing wind was south-east. There were 12 thunder- 

 showers ; and lightning occurred once. 



August was also warmer than any August, with only one 

 change of moment ; on the 25th the mercury fell IT in as 

 many hours ; the barometer remained quite uniform till just at 

 the close of the month, when it rose .495 inch. The quantity of 

 rain was more than the average. It rained on six days. The 

 prevailing wind was west. There were three thunder-showers, 

 and lightning occurred once. 



September was cooler than any September in the time, with 

 a change of temperature from 2 p.m. of the 17th to 7 a.m. of the 

 20th, of 32.2 P . The barometer fell from 7 a.m. of the 15th to 2 

 p.m. of the 18th, .72 inch. It rose on the 22d .305 inch., and 

 fell again on the 23d to the 26th, .6 inch. The quantity of rain 

 was less than in any corresponding month of the ten years. 

 Rain fell on 7 days. The prevailing wind was north-west. 

 Lightning occurred once. 



October was a little warmer than the average for October ; 

 the temperature was variable, though no great changes occurred, 

 nor any of note in the barometer. The quantity of rain was more 

 than the average ; rain fell on 9 days. The prevailing wind 

 was north-west. 



