No. 1.] 



METEOROLOGICAL RESULTS. 



61 



MISCELLANEOUS. 



Meteorological Results for the Year 1880. 



McGill College Observatory, Montreal, Canada. C. H. McLeod, 

 Superinteihieut. Height above sea level, 187 feet. 



Month. 



Thermomf.ter. 



January 



February ... 



March 



April 



May 



June 



July 



Au^npt 



September. 



October 



November . . 

 December . . 



Means for 1880. 



Mean 



22. 

 T9. 

 22. 

 3">. 

 58. 

 60. 

 !6'.». 

 66. 

 60. 

 45. 

 29. 

 15. 



445 



888 



0861 



5'.t9; 



603 1 



5()8' 



2821 



949 



312! 



745 



099 



700 



Range. 



* Barometer. 



Mean. 



53 3 

 68.7 

 60.8 

 53.2 

 62. 3 

 37 3 

 33.5 

 41.4 

 44.7 

 52.8 

 56 8 

 49.2 



Mean.« for 6 years 

 ending with '80. 



43.018 



42.471 



67.78 



16.62 51.17 



§Max 



30. 11781 30. 

 30.00822 30. 



;^.o. 

 30. 



30.05803 

 29.8:6S8 

 29. 94195; 30 

 29.921471.30 

 29 88246 30. 

 29.98902,30 

 29.95100 30 

 30.035ii2!30 

 30.15725 30 



864 

 540 

 695 

 298 

 360 



086 

 36i» 

 265 

 400 

 664 



i9. 98282 30 579 



29. 99354 



29.96253 



mm. 



Range 



29.487 

 29.340 

 29.22« 

 29.285 

 29.537 

 29.487 

 29.482 

 29.55fi 

 29.561 

 29 374 

 29.353 

 29.488 



1.377 

 1.200 

 1.467 

 1.013 

 0.823 

 0.748 

 0.604 

 0.813 

 0.704 

 1.026 

 1.311 

 1.091 



1.015 



Cot 



S = c 



^ 00 •-" 



1048 

 0974 

 0896 

 1720 

 3349 

 4363 

 4787 

 4459 

 4017 

 2490 

 1442 

 0809 



2529 



2562 



® — 



77. « 

 73. tf 

 69. S 

 69.0 

 63. a 

 67.1 

 67.4 

 68.2 

 74.8- 

 78. la 

 79.5 

 82.^ 



72. Si 



74. 8t 



* Barometer reduced to 32' Fah. and to pea level. 

 t In inches of mercury. 

 J Relative saturation 100. 



The monthly means are derived from observations taken every fourth hour.,. 

 beginning with 3.13 a.m. 



The greatest heat was 86.2, on July 10th and August 2-4th. 

 Greatest cold was 17.5 below zero on February 2nd. Extreme 

 range of temperature for the year 103°. 7. Greatest range of 



