24 A SUMMER IN GREENLAND 
data collected at Jakobshavn (lat. 69° N.): Curve I 
shows the air temperature in degrees Centigrade 
and Fahrenheit for the twelve months; II shows 
the percentage of days in each month on which 
the thermometer fell below the freezing-point; 
III gives the rainfall in inches and millimetres. 
It is interesting to note that the date of flowering 
ClFlalelMlalmig lala] s|o|N/pPElre 
as 
+5|41 “a 41|+5 
-0|32 yA 32]-0 
-5 | 23 N 23|-5 
I N I 
10 }14 7 = 14|-10 
15| 5 N 7 M5 [5 
20|-4 r= -4,|-20 
25 }-1b2 1-2|-25 
5s JS th 
IE | 48% soy, | 1 
257. 25% 
30 +18 4 11430 
TH j20+2 ae sd 2 +20) I 
10+ 34 _——— ’ B TIO 
mm, ine ™m in 
of several Greenland plants fluctuates within a 
range of a few weeks and that this is consistent 
with the variation of the date of incidence of the 
spring temperature, that is a temperature above 
freezing-point. In the chart the temperature curve 
(I) shows the mean about which there is a fairly 
wide fluctuation. 
It is on the whole true that the further north 
one goes, the more settled and finer the weather. 
