WHOLE VOL. 



NORTH ATLANTIC 



367 



JACOBSHAVN, GREENLAND 



Lat. 69° 12' N. Long. 50° 2' W. H b * 



PRESSURE AT SEA LEVEL: COR. TO 0° C. (32° F.) AND TO 



GRAV. AT 45° LAT. 



Means of £(8 h + 14 h + 21 h ), 45th meridian W. 



700 mm + 



TEMPERATURE IN DEGREES C. 

 Means of 1/9[2(8 1, + 14 11 ) +5 X 21 h ] 



Date Jan. Feb. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. Means 



1921 

 1922 

 1923 

 1924 

 1925 



1926 

 1927 

 1928 

 1929 

 1930 



-17.1 

 -17.3 

 -20.2 



- 9.8 

 -21.7 



-11.1 

 -10.7 

 -11.2 



- 2.9 

 -14.3 



-20.6 

 -27.7 

 -14.1 

 -16.0 

 -18.4 



-14.2 

 -15.0 

 -15.0 

 - 6.3 

 -12.0 



.. . —11.8 0.2 



-14.6 — 7.2 —2.1 



-12.7 — 3.0 0.5 



-10.9 — 4.7 1.7 



-11.2 — 9.6 —0.5 



-14.7 — 7.5 



-18.3 — 8.5 



- 5.2 — 4.9 



- 5.4 — 4.6 



- 7.1 — 3.9 



M'ns —13.6 —15.9 —11.1 — 6.6 



1.1 

 1.2 

 2.1 

 1.8 

 1.3 



0.7 



4.8 

 2.9 



5.7 

 7.2 

 4.6 



7.4 

 5.8 

 7.2 

 4.8 

 4.5 



5.5 



7.4 

 7.9 

 7.1 

 5.5 



9.5 

 7.0 



8.5 



8.5 

 7.7 



7.8 

 5.6 

 7.1 

 5.8 

 5.8 



6.6 

 7.6 

 9.1 

 7.6 

 7.4 



7.0 



1.7 

 0.9 

 1.3 

 0.9 

 3.4 



2.3 

 4.8 

 5.2 

 1.3 

 5.1 



—5.0 

 —1.0 

 —4.0 

 —5.7 

 —3.5 



—2.3 

 —3.6 

 —0.6 

 —5.6 

 —4.0 



-4.8 —12.9 



-8.0 — 8.7 —5.8 



-5.8 — 9.3 — 3.9 



-7.6 —16.5 — 4.0 



-4.5 — 6.6 —4.7 



-7.2 

 -7.5 

 -6.0 

 -7.5 



-8.4 



-10.7 



- 6.5 



- 8.7 

 -11.3 

 -10.7 



—3.4 

 —3.6 

 —1.6 



2.7 —3.5 —6.7 —10.2 t— 3.7 



TOTAL PRECIPITATION IN MILLIMETERS. h r = 1.9 m 



* See Notes, p. 47. 



t Mean of 12 monthly means. 



t Sum of 12 monthly means. 



