ABSTRACT FOR THE MONTH OF APRIL, 1903. 



Meteorological Observations, McGill College Observatory, Montreal, Canada. Height above sea level, 187 feet. C. H. MoLEOD, Superintendent. 



Sunday 19 



THERMOMETER. 



.8 



53. S 



.8 



55 ■■ 



•9 



40.2 



7 



36. a 



.6 



56. 



■3 



53-. 





52. 



.3 



4 B.c 





54. 





54> 



.6 



59-. 



-0 



54- 







•5 



4 6.< 





49- 







40. 





4°- 



■ 5 



5». 



• > 



54- 



■' 



57- 



i-7 



5»- 





54- 





64. 



.6 



69. 







S-2 



82. 



36.6 



3'- 8 

 30.8 



33-9 

 30-2 



3°-9 



* BAROMETER, 



■ = 



■7 

 3 



29.9 

 29.8 

 29.4 



■- 



29. j 



.3 



30.3 





30.: 



■5 









1 





■8 



3°.c 



■ ! 



30.! 



.3 



29.? 



•7 

 ■7 



29. s 



29.5 



t-9 



29.5 

 29. i 



• 



29. 



s.° 



29. 1 



5-0 

 S-8 



29. 

 29. 



1.8 



29. 



5-9 



29. 

 30. 



1-5 

 7.0 



3°. 

 30. 



7.3 

 S.I 

 4-3 



29. 

 29. 



s.w. 

 s.w. 

 s.w. 

 s.w. 



63.8 N 5 i - W. 



velocity 







ANALYSIS 



OF WIND RECOKD. 









Direction 



N. 



N.E. 



E. 



S.E. 



S. 



S.W. w. 



N.W. 



Calm. 





2223 



■734 



597 



503 



98a 



2259 



1489 



'554 











Duration in hrs.. 



146 

 15.2 



109 



52 



— J" 



61 

 16.1 



"7 



117 



9' 



3 



Mean velocity. ... 



16.0 



'9-3 1 12.7 



'7-3 





Greatest mileage 

 Greatest velooity 



11 one b 



in gusts 



ur wn8 

 was 72 



18 on the 

 n the 30 



30th. 

 h. 





Res 

 Res 



iltant in 

 lltant d 



le:tL'c, *J 



rcction. 



N 51° W. 





Total mileage, 11,341. 



•BaromehT reaiiiri!'.* nMuced to sea-level and 

 temperature 32° Fahrenheit. 



t Mean of bi-bourly readings taken from 

 self-recording instruments. 



1 Humidity relative, saturation being 100. 

 Mean of observations at o, 15 and 20 hours. 



% 22 years only. £16 years only. 



5th, giving a range of temperature of 69.4 



Warmest day was the 30th. Coldest day was 

 5th. 



Highest barometer reading wn.s 30.48 on 

 6th ; lowest barometer was 29.31 on the ; 

 giving a range of 1.14 inches. 



Minimum relative humidity observed wa: 

 on the 26th. 



Rain fell on 6 days. Snow fell on 3 days. 



Rain and snow on 1 day. 



Fog on 1 day. 



Thunderstorm on 2nd. 



No snow on ground. 



