. Journal of electricity . 46 105 Normals—upper figures Season of 1919-20—lower figures Fordyce Dam Summit Tamarack Date Nevada Co. Placer Co. Alpine Co. Alt. 6500 Ft. Alt. 7017 Ft. Alt. 8000 Ft. November 1 1 1 1 0 0 0 November 15 8 9 11 0 0 0 December 1 9 10 17 18 34 36 December 15 28 28 38 50 52 48 January 1 38 41 57 34 37 28 January 15 71 87 101 33 43 28 February 1 83 112 139 34 32 21 February 15 92 116 149 30 21 27 March 1 112 128 173 54 53 60 March 15 109 138 177 58 65 56 AprU 1 103 114 167 67 76 86 April 16 87 87 135 74 93 90 May I 63 60 115 50 55 72 May 15 60 3416 95 May 31 29 14 65 26
. Journal of electricity . 46 105 Normals—upper figures Season of 1919-20—lower figures Fordyce Dam Summit Tamarack Date Nevada Co. Placer Co. Alpine Co. Alt. 6500 Ft. Alt. 7017 Ft. Alt. 8000 Ft. November 1 1 1 1 0 0 0 November 15 8 9 11 0 0 0 December 1 9 10 17 18 34 36 December 15 28 28 38 50 52 48 January 1 38 41 57 34 37 28 January 15 71 87 101 33 43 28 February 1 83 112 139 34 32 21 February 15 92 116 149 30 21 27 March 1 112 128 173 54 53 60 March 15 109 138 177 58 65 56 AprU 1 103 114 167 67 76 86 April 16 87 87 135 74 93 90 May I 63 60 115 50 55 72 May 15 60 3416 95 May 31 29 14 65 26 JOURNAL OF ELECTRICITY [Vol. 45—No. 1 some of the principal California streams. Thesedata have been kindly furnished by the Water Re-sources Branch of the U. S. Geological Survey. The present rainy season has brought deficientprecipitation to all the Pacific Coast states. Themonths of December, January and February wererelatively dry in the states of Nevada, Oregon andWashington, as well as in California. In Oregon,. Mass curves of precipitation for the state of California based on averagesfrom about 300 stations. The heavy line represents the normal, and thedotted line the precipitation for the season 1919-1920. January and February, 1920, were the driest monthsof those names in 30 years of record. A peculiar feature of the weather during thepresent season is the fact that there has been anapparent northward migration of the usual condi-tions affecting the weather of the Pacific entering the continent of North Americafrom the Pacific Ocean have taken northern routes,so far to the north that California has been outsideof the range of precipitation for most of , extreme southern California has had rela-tively heavy precipitation from storms of the sonoratype. The rainfall has been sufficiently heavy inArizona and in New Mexico to cause floods. The question is often asked, Is the climatechanging? The idea is expressed in various say that
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