Table 27.-- Wlnd direction by hour of day, and number of days per month In each direction class 



(Av. 1950-56) 



day N NE E SB S SW « NW Calm daj N NE E SE S SW W NW Cairn; day N KB E SE S SW W \7X Ze.'^_ 



April April April 



0300 5.9 2.7 2.3 2.9 4.2 1.7 1.7 2.2 6.4 0300 5.2 3.1 3.4 2.6 3.2 1.8 1.1 6.9 2.7 0300 8.0 0.5 0.4 1.9 0.6 0.2 2.0 12.2 4.0 



0900 7.3 6.3 . 7 . 6 2.4 1.7 4.0 5.4 1.6 0900 4.6 3.4 4.1 2.9 3.3 1.6 2.1 6.0 2.0 0900 7.6 2.0 .2 3.0 1.4 . 4 2.7 8.3 4.4 



12001/ 6.2 2.6 1.0 1.6 2.7 2.3 4.8 7.4 .8 1200 5.6 1.6 3.3 3.4 3.9 1.8 2,3 7.5 .4 1200 6.0 4.3 1.7 4.7 2.4 1.3 1.6 3.8 4.2 



1500 5.6 1.9 1.1 2.2 4.0 2.2 5.9 6.8 . 3 1500 5.0 1.7 3.4 3.1 3.6 2.1 2.0 8.4 . 7 1500 5.6 4.8 2.9 5.7 2.7 1.3 1.2 2.2 3.6 



18001/ 4.4 1.6 . 7 2.4 4.9 3.7 4.4 5.9 1.3 1800 5.2 1.8 3.3 3.2 3.4 1.7 2.6 8.2 . 6 1600 5.2 5.1 2.0 4.0 1.6 1.1 2.0 2.9 6.1 



2100 3.8 2.7 2.0 4.1 6.3 2.9 1.9 2.7 3.6 2100 4.5 2.1 3.4 2.6 5.8 1.1 2.4 7.9 2.0 2100 7.1 1.9 1.0 1.9 1.5 .6 3.0 6.9 6.3 



Av. 5.5 3.0 1.3 2.3 4.1 2.4 3.8 5.1 2.3 Av. 5.0 2.3 3.5 3.0 3.5 1.7 2.1 7.5 1.4 Av. 6.6 3.1 1.4 3.5 1.7 .8 2.1 6.0 4.6 



'J&2 May May 



0300 2.7 2.2 2.7 5.8 7.6 1.4 1.0 2.0 5.4 0300 4.1 3.1 6.0 3.3 3.4 1.9 1.2 5.7 2.3 0300 5.6 1.4 . 3 1.9 1.4 . 9 3.6 10.2 5.7 



0900 4.3 2.2 . 6 2.4 3.9 2.2 6.0 8.2 1.2 0900 4.0 3.1 6.8 5.0 4.1 1.8 2.3 3.6 . 3 0900 7.6 3.1 1.9 4.3 2.7 2.7 1.4 2.7 4.6 



1200 3.2 . 8 . 6 3.6 5.9 2.4 7.0 6.7 . 8 1200 3.9 3.2 4.7 4.9 4.8 2.2 1.9 5.2 . 2 1200 4.9 4.2 3.8 4.8 3.7 3.2 2.0 2.1 2.3 



1500 1.6 . 8 . 7 4.9 9.0 2.2 6.6 4.9 . 3 1500 3.9 1.6 4.5 3.6 6.1 2.0 2.1 6.6 . 6 1500 4.4 4.9 4.0 4.2 2.9 3.3 3.0 1.9 2.4 



1800 1.7 .1 .3 5.7 9.1 3.2 5.4 4.7 .8 1800 4.2 1.6 4.2 3.9 4.8 2.4 3.1 6.6 .2 1800 4.7 5.3 4.2 3.8 2.8 4.0 1.6 2.4 2.2 



2100 1.8 1.7 .3 5.4 11.0 3.4 1.9 1.7 3.8 2100 4.0 2.0 4.8 3.7 3.8 1.8 3.3 6.3 1.3 2100 5.9 4.2 2.S 3.4 1.3 2.4 2.4 5.0 3.6 



Av. 2.6 1.3 .9 4.6 7.8 2.5 4.6 4.7 2.0 Av. 4.0 2.4 5.2 4.1 4.5 2.0 2.3 5.7 .8 Av. 5.5 3.9 2.8 3.7 2.5 2.8 2.3 4.0 3.5 



Jung June June 



0300 1.3 2.2 1.4 3.1 8.2 4.0 1.3 1.6 6.9 0300 2.2 1.7 3.9 4.4 4.9 3.4 1.8 5.9 1.6 0300 5.3 .7 1.3 4.9 1.8 1.0 1.9 6.3 6.8 



0900 4.0 2.1 .6 1.3 3.0 2.9 6.7 8.4 1.0 0900 2.4 2.9 3.2 4.3 6.6 3.1 2.0 4.8 . 7 0900 3.3 . 9 2.0 3.7 5.0 6.0 2.2 3.0 3.9 



1200 3.3 .4 .3 2.0 3.7 2.2 8.9 8.8 .4 1200 3.1 2.0 3.6 3.0 6.9 4.1 3.2 4.0 .1 1200 3.0 1.4 2.1 3.7 5.9 6.2 2.0 2.3 3.4 



1500 2.6 .4 .1 2.4 5.8 3.2 9.0 6.3 .2 1500 2.6 2.1 2.3 2.3 7.0 4.7 2.7 5.9 .4 1500 3.0 1.7 2.3 3.6 3.7 8.4 1.9 2.0 3.4 



1800 2.0 .6 .2 3.6 6.7 5.3 7.2 4.2 .2 1800 2.6 1.6 2.2 2.3 5.8 4.3 5.0 6.0 .2 1800 3.0 1.2 2.4 3.4 4.2 8.4 2.5 2.9 1.9 



2100 1.7 . 9 1.0 4.1 9.9 4.2 2.9 1.4 3.9 2100 2.0 1.6 2.6 1.8 6.1 4.7 5.2 5.1 1.0 2100 4.1 1.2 2.0 3.6 4.0 5.4 1.9 2.6 4.6 



Av. 2.5 1.1 .6 2.8 6.2 3.6 6.0 5.1 2.1 Av. 2.5 2.0 3.0 3.0 6.2 4.0 3.3 5.3 ' .7 Av. 3.6 1.2 2.0 3.9 4.1 5.9 2.1 3.2 4.0 



July July July 



0300 1.9 2.8 2.4 3.6 7.0 1.9 1.3 1.1 9.0 0300 2.6 1.7 2.2 3.6 6.7 3.0 2.6 5.5 3.1 0300 3.1 .7 2.0 8.6 2.2 . 7 . 8 5.2 6.7 



0900 4.9 2.2 . 8 1.8 3.1 3.1 6.7 6.4 2.0 0900 3.3 3.2 2.4 3.1 6.0 3.2 2.1 4.4 1.3 0900 4.0 . 4 . 9 6.0 6.2 4.0 2.0 2.6 4.9 



1200 3.8 2.0 . 2 2.0 1.9 2.6 9.7 7.6 1.0 1200 2.9 1.6 2.3 2.8 9.5 3.4 2.8 5.0 . 7 1200 1.8 . 9 1.9 4.8 6.6 8.0 1.0 1.7 4.3 



15001/ 3.3 1.0 .2 2.1 3.0 3.8 8.7 7.4 .8 1500 2.4 2.1 1.7 1.6 9.5 5.2 3.0 5.2 .3 1500 1.7 1.2 1.0 3.9 7.7 9.4 1.9 1.4 2.6 



1800 3.0 . 7 . 4 3.1 4.4 4.9 7.7 5.6 1.2 1800 2.6 1.3 1.9 1.9 7.7 6.2 3.8 4.6 1.0 1600 1.4 . 9 . 8 5.7 6.7 9.2 2.3 1.7 2.3 



2100 1.9 .7 1.3 5.1 7.6 4.6 2.3 2.1 5.3 2100 1.8 1.3 1.6 2.0 6.6 6.7 4.9 4.7 1.2 2100 2.2 .6 1.3 5.4 6.2 5.3 1.1 3.3 5.6 



Av. 3.1 1.6 .9 3.0 4.5 3.5 6.0 5.1 3.2 Av. 2.6 1.9 2.0 2.5 8.0 4.6 3.2 4.9 1.3 Av. 2.4 .8 1.3 5.8 5.9 6.1 1.5 2.8 4.4 



August August Aug - - st 



0300 3.6 2.9 2.8 4.4 5.0 1.1 .8 1.3 9.1 0300 2.0 1.6 3.3 4.4 6.9 4.1 2.4 3.5 2.8 0300 4.3 .7 1.3 6.9 1.7 .7 1.6 6.4 5.4 



0900 6.6 3.8 . 9 1.3 4.4 2.7 3.1 4.8 3.4 0900 1.9 2.6 3.2 4.3 7.2 5.1 2.3 3.0 1.4 0900 5.2 1.4 1.7 5.3 5.9 2.0 . 6 3.9 4.8 



1200 5.8 4.0 . 7 1.6 2.2 3.2 4.0 8.2 1.3 1200 2.6 2.4 2.6 3.4 9.6 3.9 2.2 3.6 . 7 1200 3.7 2.0 1.6 4.3 7.0 5.3 2.2 2.0 2.9 



1500 4.1 2.2 . 4 2.4 3.9 2.7 7.2 6.3 1.8 1500 2.6 2.6 1.8 3.0 9.0 5.6 2.9 3.4 .2 1500 2.4 2.0 2.0 3.9 8.0 5.6 2.0 1.8 3.3 



1800 2.7 2.0 .7 2.6 5.9 3.2 5.4 6.3 2.2 1800 1.4 3.1 1.3 3.1 8.1 5.1 3.3 5.2 .4 1800 3.1 1.6 2.1 3.8 8.1 5.0 1.9 2.0 3.4 



2100 2.2 1.0 5.3 6.0 6.7 2.6 1.6 1.6 6.0 2100 1.9 1.7 1.1 5.6 8.2 4.9 3.0 3.6 3.0 2100 4.1 1.1 2.4 6.0 4.2 1.9 1.6 2.3 7.2 



Av. 4.1 2.6 1.5 3.0 4.7 2.6 3.7 4.8 4.0 Av. 2.1 2.5 2.2 5.6 8.2 4.8 2.7 3.7 1.4 Av. 3.8 1.5 1.9 5.0 5.8 3.4 1.7 3.4 4.5 



BIG DSLTA FAIRBANKS FT. YUKON 



^ m9 Wind direction (from) Wind direction (from) ^ m0 Wind direction (from) 



day N NE E SE S SW W NW Calm day N NE E SE S SW W NW Calm day N NE E SE S SW ff NW Calm 



April April April 



0300 0.2 0.6 3.7 2.1 7.1 7.0 3.1 0.6 5.6 0300 8.3 3.6 1.7 0.6 0.7 2.0 1.2 2.8 9.1 0200 2.6 15.6 1.8 1.0 .0.6 3.2 1.4 1.0 1.8 



0900 1.6 2.2 9.3 . 9 3.3 1.2 5.0 1.2 5.3 0900 1.9 4.6 4.7 2.9 2.6 2.0 1.4 1.9 8.0 0900 2.7 14.5 2.6 . 8 . 9 3.9 3.9 . 4 .3 



1200 1.6 1.8 7.0 1.2 4.6 1.8 4.8 2.1 5.1 1200 1.6 2.7 4.0 5.6 5.3 3.0 2.1 1.1 4.6 1200 2.4 15.3 2.2 . 3 . 8 4.3 3.9 . 8 .0 



1500 1.1 1.8 5.6 1.1 5.0 2.7 6.6 1.9 4.2 1500 2.3 2.3 2.7 5.1 5.4 3.6 3.4 1.8 3.4 1500 1.9 13.9 2.4 .8 .6 5.7 3.9 .7 .1 



1800 . 6 1.0 4.6 1.7 5.6 5.2 6.8 2.1 2.4 1800 5.3 3.4 1.7 1.4 3.9 4.0 2.7 3.6 4.0 1700£/ 1.5 13.0 3.5 1.0 .6 4.8 3.8 .9 .0 



2100 .8 4.1 1.0 7.3 3.8 4.3 .6 3.1 2100 11.2 3.1 1.0 .7 1.0 5.0 2.0 5.6 4.4 200Q2/ 2.7 15.0 2.5 .6 1.1 3.2 2.2 1.5 .4 



Av. .8 1.4 5.8 1.3 5.5 4.4 5.1 1.4 4.3 Av. 5.1 3.5 2.6 2.7 5.2 2.9 2.1 2.5 5.6 Av. 2.3 14.6 2.5 .8 .8 4.2 3.2 .9 .4 



May May __. May 



0300 .1 .4 3.0 1.7 7.9 10.0 1.9 . 2 5.8 0300 9.7 4.2 1.9 . 4 1.6 1.8 1.0 4.4 6.0 0200 . 9 18.9 1.8 . 6 1.1 4.4 1.7 . 5 1.5 



0900 2.5 3.0 6.1 1.7 6.0 5.0 5.2 2.7 3.0 0900 2.1 5.3 6.4 2.8 3.6 5.3 2.1 1.8 3.6 0900 1.6 15.4 2.3 . 6 . 8 5.3 4.2 . 7 .1 



1200 2.7 2.2 4.4 1.6 8.1 3.1 2.9 4.1 1.9 1200 2.0 2.8 4.1 4.8 5.2 4.6 3.0 3.3 1.2 1200 1.3 14.1 2.1 1.1 .7 6.6 4.0 1.0 .1 



1500 1.6 2.8 3.1 2.0 9.7 3.7 5.0 1.8 1.0 1500 2.6 4.4 3.9 2.7 4.1 5.5 3.8 2.8 1.2 1500 1.1 14.0 2.0 1.7 1.1 5.7 4.4 1.0 .0 



1800 1.7 1.8 3.6 1.1 10.1 3.6 4.2 3.0 1.9 1800 3.7 4.9 3.4 1.7 2.4 5.4 4.7 3.4 1.4 17003/ 1.1 14.8 1.6 1.8 1.0 4.6 4.6 .9 .0 



2100 .4 1.6 2.1 1.8 10.7 7.0 3.1 1.0 5.3 2100 6.7 3.3 1.6 1.1 1.2 4.8 2.1 4.8 3.4 2000 1.6 15.8 2.0 .9 .9 4.2 4.0 1.2 ■ .4 



Av. 1.5 2.0 3.7 1.6 8.8 5.1 3.4 2.1 2.8 Av. 4.8 3.8 3.6 2.2 3.0 4.6 2.B 3.4 2.8 Av. 1.5 15.5 2.0 1.1 .9 5.1 3.8 .8 .3 



June June June 



0300 .1 .4 1.8 1.8 7.1 11.8 2.8 . 2 4.0 0300 6.9 2.7 2.2 . 8 1.9 3.4 1.9 2.3 7.9 0200 1.2 10.9 1.7 1.7 2.0 6.7 3.2 1.2 1.4 



0900 2.9 3.0 3.4 1.1 3.3 3.2 6.4 3.7 2.9 0900 1.3 3.0 3.0 2.4 3.9 6.9 2.3 2.4 4.8 0900 1.7 9.1 1.7 1.2 1.7 7.9 5.7 . 9 .1 



1200 3.1 2.7 2.3 .9 3.2 3.6 7.1 4.3 2.8 1200 1.4 1.7 3.0 2.4 2.9 8.2 5.2 2.9 2.3 1200 1.0 7.5 1.8 1.2 2.0 7.9 6.9 1.9 .0 



1500 2.4 1.4 1.9 1.3 6.2 3.2 6.9 4.4 2.3 1500 1.7 2.8 1.9 1.6 3.3 7.7 6.3 2.7 2.0 1500 1.2 8.3 1.0 1.0 1.6 7.0 8.3 1.6 .0 



1800 1.7 1.0 2.2 1.0 6.9 4.9 5.8 4.2 2.3 1800 3.0 2.8 1.7 1.7 2.8 7.7 5.3 2.9 2.1 1700 1.0 8.7 1.6 1.4 1.6 6.4 7.3 1.9 .1 



2100 .7 1.1 .8 .8 7.8 10.1 4.3 .8 3.6 2100 4.9 2.0 1.2 .9 3.0 6.0 4.9 5.5 5.8 2000 1.6 9.1 1.2 1.7 1.6 6.8 6.1 1.7 .2 



Av. 1.3 1.6 2.1 1.2 5.8 6.1 5.5 2.9 5.0 Av. 5.2 2.5 2.2 1.6 5.0 6.6 4.3 2.8 3.8 Av. 1.3 8.9 1.5 1.4 1.8 7.1 6.2 1.5 .3 



July July July 



0300 .1 .2 1.7 . 6 6.6 10.6 4.1 .2 6.9 0300 5.2 5.0 1.9 . 8 1.6 3.9 1.4 2.3 8.9 0200 1.2 6.8 1.7 1.3 1.9 8.0 6.7 1.6 1.8 



0900 3.4 2.6 3.8 . 3 3.4 2.9 6.0 4.2 4.2 0900 1.2 3.2 2.7 3.7 4.5 6.7 2.8 . 9 5.3 09001/ 1.4 7.2 1.2 . 6 2.4 10.0 6.2 1.0 .0 



1200 3.7 2.7 2.1 .8 4.2 2.7 5.9 5.1 3.7 1200 1.4 1.6 2.4 2.8 4.9 9.1 4.6 1.9 2.3 1200 .8 5.0 1.3 1.3 2.8 9.7 8.4 1.7 .0 



1500 3.7 1.7 1.7 . 6 6.0 3.0 6.1 5.8 2.4 15001/ 1.3 2.1 1.4 2.2 3.6 6.0 8.6 2.4 2.0 1500 . 8 5.1 1.1 1.2 2.1 8.7 9.7 2.2 .1 



1800 2.2 2.0 1.7 1.0 5.7 4.0 6.0 6.0 2.4 1800 2.1 1.4 1.1 2.3 2.7 8.9 7.3 2.4 2.8 1700 .3 3.7 1.0 1.1 2.4 8.5 10.7 3.0 .3 



2100 .1 1.0 1.7 1.2 7.6 9.0 5.2 . 8 4.4 2100 4.9 1.3 1.4 . 9 3.0 6.1 3.7 4.3 5.4 2000 1.6 4.2 1.6 1.3 2.8 7.9 8.7 2.0 .7 



Av. 2.2 1.7 2.1 .7 5.6 5.4 5.6 3.7 4.0 Av. 2.7 2.4 1.8 2.1 3.4 6.8 4.7 2.4 4.4 Av. 1.0 5.3 1.4 1.1 2.4 7.6 8.4 1.9 .5 



August August August 



0300 . 2 . 9 3.4 2.7 5.8 7.4 3.1 .5 7.2 0300 5.2 4.6 1.7 1.0 2.1 3.2 1.7 4.1 7.4 0200 . 7 7.0 3.6 . 8 2.0 8.6 4.2 1.1 3.0 



0900 1.7 2.9 8.4 . 8 3.3 2.2 4.6 3.3 3.8 09001/ 2.2 4.4 5.2 2.8 2.2 3.8 2.2 1.3 6.1 0900 1.2 7.1 2.0 1.0 3.0 8.9 5.5 2.1 .2 



1200 2.6 2.8 6.6 1.6 4.8 3.2 3.6 3.1 2.7 1200 .9 2.4 3.7 4.0 4.1 6.2 3.2 2.1 4.4 1200 1.3 6.1 1.8 1.8 2.9 8.5 6.8 1.8 .0 



1500 2.8 2.9 4.4 1.4 6.1 2.1 4.6 4.1 2.6 1500 2.7 2.4 2.4 3.0 3.0 7.2 5.1 2.1 3.1 1500 . 7 5.6 2.1 1.9 1.9 7.4 9.0 2.1 .3 



1800 1.7 1.9 2.6 1.2 7.1 3.7 4.9 3.1 4.6 1600 4.2 2.6 1.9 1.1 1.8 8.2 4.3 3.2 3.7 1700 1.0 5.6 2.4 1.1 2.6 6.6 8.3 3.0 .4 



2100 .2 .2 1.9 1.3 11.3 7.9 3.7 .3 4.2 2100 8.0 1.6 .9 .7 1.8 5.2 2.9 6.0 3.9 2000 1.1 7.1 2.7 1.1 2.6 8.7 4.7 2.3 .7 



Av. 1.5 1.9 4.6 1.5 6.4 4.4 4.1 2.4 4.2 Av. 3.9 3.0 2.6 2.1 2.5 5.6 3.2 5.1 4.6 Av. 1.0 6.4 2.4 1.3 2.5 6.1 6.4 2.1 .8 



See footnotes at end of table. 



122 



