WHOLE VOL. 



LAT. 



70" N. 



515 



SEA-LEVEL PRESSURE AT 10° INTERSECTIONS 



Lat. 70° N. Long. 90° E. 



950 mb. + 



Mean 68.3 69.8 65.3 63.4 60.1 56.3 57.1 



60.3 59.7 69.7 64.9 67.5 



62.8 



Lat. 70° N. Long. 100° E. 

 950 mb. + 



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



1929 



78.8 SO.l 



59.3 58.4 



60.8 



01.4 



58.6 



59.4 



67.7 62.8 



63.3 



76.4 



65.6 



67.2 58.9 55.9 55.6 00.1 01.9 



60.9 62.3 57.5 62.7 62.3 



62.6 62.2 56.4 56.8 61.6 61.8 



60.9 04.7 50.4 60.8 



59.1 58.6 57.9 57.0 61.9 63.1 



68.6 60.8 59.0 54.5 53.6 57.5 



67.9 58.2 57.5 57.0 61.7 59.7 



61.1 56.7 57.3 56.8 56.9 56.6 



03.5 



63.9 60.2 58.2 54.7 59.7 61.3 61.0 66.7 69.4 63.8 



Lat. 70° N. Long. 110' 

 950 mb. + 



E. 



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



1929 79.8 81.8 61.5 59.1 

 60.6 



62.0 



62.2 



59.4 



59.9 



60.6 56.8 56.3 59.6 64.3 



62.1 62.7 57.4 61.5 62.7 



64.1 63.4 56.7 57.5 01.3 63.0 

 60.4 64.7 57.8 02.5 



61.6 59.2 58.4 56.9 62.1 64.7 



70.2 62.5 59.3 54.9 54.5 59.3 

 67.9 59.1 58.1 57.5 61.6 63.3 



61.7 57.1 56.8 56.2 55.8 57.4 



64.8 



64.7 61.2 58.8 57.0 69.5 62.9 



64.5 05.8 77.4 



66.8 



