48 SCIENTIFIC SURVEY OF ABERDEEN AND DISTRICT 
At Balmoral there is night frost on the ground on two-fifths of the days 
of the year ; it may occur in every month—even in July. 
Winds at Aberdeen blow chiefly from directions in the south-west and 
north-west quadrants, and are least frequent in the north-east quadrant. 
Gales are relatively infrequent and blow chiefly from the west and south- 
west ; those from east and south-east tend to endure for a longer time 
when they do occur. A sea-breeze effect is often felt during fine summer 
weather. 
TaBLeE V.—MIsSCELLANEOUS PHENOMENA 
ABERDEEN | BatmoraL __ |BRAEMAR 
Month mictae hk of Days of No. of Days of Dak i 
Per cent pee) a Ground |/Thunder 
881— | 1881— | r914- 
1886— ort Frost | 1914- 
1910 oe nQxS 1933 1933 
January. 80°3 fe) I°9 fo) 23°3 fo) 
February . 79°2 fe) rer o'r 20:7 ) 
March : 78-8 fe) 3°2 fe) At fo) 
April . aU Be oo 6-2 2°8 O73 ¥7°3° |) eRe 
May . ; 78:8 0-7 2°0 1-0 9:0 0°9 
June . : 78°2 E> 4 0-4 o°8 2°8 0°7 
July . 4 78 °3 2°O Sak Sha pean a 1°6 Beg 
August : 79°2 I°5 Or! 1°6 0'9 bare) 
September . 80°5 0-4 0°2 0-2 5°2 fo) 
Octeber ., 82°3 orl [*2 0:2 Io'l fo) 
November . 82-1 ovr 2 0-2 17°6 fo) 
December . Senn ov! Ea 0:3 | -2is§ 0°3 
Year ‘ 79°8 6:4 15°9 6 Biial iil 4°4 
Fog is much more common during the summer half of the year than 
during the winter, and occurs chiefly in the early summer with south-east 
winds. On the average there are seventeen days with fog in each year at 
Aberdeen. 
In addition to the above selected stations there are about 30 others 
for which rainfall data are available. 
