ABSTRACT FOR THE MONTH OF MAY, 1901 



Meteorological Observations, McGill College Observatory, llontreal, Canada. Height above sea level, 1S7 feet. C. H. McLEOD, Superintendent. 



THERMOMETER. 



6S-« 

 63.75 

 59-73 



(6.9 

 49-7 

 53-9 



♦BAROMETER. 



iq 



8S 



'9 



40 



■■", 



g8 



39 







07 



39 







S9 



So 



»5 



qt, 



29 



70 



=( 



79 



39 



71 





»4 







30.03 



29.82 



29.90 



2975 



30.07 



29.90 



30.09 



30.03 



30.11 



29.99 



29.99 



29.71 





29.63 



30.16 



29.79 



29.66 



66.5 



N.W. 

 N.W. 

 N.W. 



S.E. 

 S.W. 

 S.W. 

 S.W. 





1-32 



IISO.67 



1.901 



i.950 



o ANALYSIS OF WIND RECOKD. 



Direction 



N. 



N.E. 



E. 



S.E. 



S. 



S.W. 



W. 



N.W. 



C«LM. 



.Mllci 



198 



4JS 



1255 



1352 



375 



■..4 



1463 



975 





Uiiratioii in hrs.. 



■4 



45 



■35 



■34 



... 



,o8 ] 9. 



62 



43 



Mean velocity.... 



.4.. 



to 6 



9 3 



.0.1 



3.3 



.0.3 .6.1 



15-7 





Urcatcfit luiloago in one hour wiis I 

 llosultiiiit inileiice, 076, 

 lieaultant dirootloD, S. 23^ 43' W. 

 Total miloiige, 7,207. 



• Barometer readings reduced to sea-level .and 

 temperature 32° FahreDheit. 



t Mean of bi-hourly roadiogs taken from 

 aelf-recording instruments. 



t Humidity relative, saturatioD being 100. 

 Mean of observations at S, 15 and 20 hours- 



H 20 years only. 2 15 years only. 



The greatest heat was 79.4 on the 22nd: the 

 greatest cold was 40.1 on the 3rd, giving a range 

 of temperature of 39.3 degrees. 



Warmest day was the 22nd. Coldest day was 

 the 3rd. Highest barometer reading was 30-24 on 



the 25th. Lowest barom< 

 2nd, giving a range of .84 i 



Minimum relative hu 

 on the 3rd. 



Rain fell on 19 days. 



Fog on the 22nd. 



Rainbow on the Slsc 



