METEOROLOGICAL OBSERVATIONS OX BEN NEVIS. 



187 



Table I. — continued. 



;8!ii 



Jan. 



Feb. March April May June | July 



Aug. 



Sept. 



Oct. Nuv. ' Dec. 



Tear 



Mainfall in Inches. 



8-33 



3-78 1 3-13 

 2-88 5-2U 



ll-a-")! :7-70' 1-32; 4-68 17-40 14-n.1 149-9$ 



5-70 

 5-G5i 



7-72 I 

 9-98 



0-24 

 1-08 1 



2-OC 11-62 8-78 79-17 

 2-G2 , 5-78 , 6-15 , 70-79 



NiimJ/er of Days 1 in. or mere fell. 



J\'iimlicr (f Bays (f no I'ain. 



BenNevisOb- 



servattirv 

 Fort William 

 Differences , 



u 



18 



U I 20 

 1 2 



Mean Rainliand {srale- 0-8). 



1-9 



3-3 

 1-4 



l-.J 



3G 



1-9 



3-6 

 1-7 



46 



16 



30 



119 



157 

 3S 



20 



40 

 2-0 



Kumhcr of Hours of Er'iyht Siinshiiii 



82 



165 

 So 



Ben Nevi? Ob- 

 servatory 



26 



Mean, Hourly Velocity if Wind in Miles. 



19 1 IS 1 19 , 11 1 10 I 12 1 11 j 11 , 15 



18 



18 



Percentage of Cloud. 



15-7 



81 



71 

 10 



At Fort William the mean temperature of the whole year was 47°"6, 

 or 0°"8 greater than the mean of previous years, being the excess above 

 the mean at western stations in Scotland from Ayrshire to Eoss-shire. 

 The mean temperature at the top of Ben Nevis was 32°-0, or 0°'9 above 

 the mean for the same years, being thus nearly the same excess as at the 

 lower Obsei'vatoiy. 



Tlie lowest mean monthly temperature at Fort William was 39°"3 in 

 January, being 0°-7 above the mean ; and at the top of the Ben 21°-7 in 

 January, which is 2°-l under the mean. This gives an unwonted large 

 difference of temperature Ijetw^een the Observatories for January, which 

 was occasioned by a comparative absence of anticyclonic weather and the 

 relatively low temperature accompanying at the upper station, and the 

 singular want of sunshine, there being registered for the whole month 



