HOOD RIVER-WHITE SALMON RIVER AREA. 



11 



Statistics of the weather conditions in these vallej's given in the 

 table below are compiled from the records of volunteer Weather 

 Bureau observers in the vicmity of Hood River. 



Statistics of climate compiled from records kept at Hood River, Oreg. 



The figures given in the following table are compiled from Weather 

 Bureau records covering a number of years and show the average 

 monthly temperature and precipitation at Hood River: 



Normal monthly and annual temperature and precipitation, Hood River, Oreg. 



Month. 



January. 

 February 

 March . . . 



April 



May 



June 



July 



Temper- 

 ature. 



'F. 

 33.9 

 36.2 

 42.4 

 50.0 

 56.3 

 60.9 

 67.2 



Precipi- 

 tation. 



Inches. 

 6.39 

 4.92 

 3.68 

 2ei3 

 1.25 

 1.02 

 .18 



Month. 



August 



September 

 October... 

 November. 

 December . 



Year 



Temper- 

 ature. 



'F. 

 66.7 

 59.3 

 51.6 

 42.2 

 35.9 



50. 2 



Precipi- 

 tation. 



Incites. 

 .24 

 1.53 

 2.61 

 5.66 

 7.42 



37.03 



Winter temperatures are not ordinarily severe and, although the 

 night temperature is usually below 32° F., it seldom falls below zero. 

 The summer season is marked by relatively cool days and nights. 

 The thermometer may rise above 90, possibly to 100° F., but such 

 extremes seldom persist for more than a few days, and are succeeded 

 by periods of cooler weather when the maximum daily temperature 

 will rarely go above 80° F. 



The usual spring conditions are such that there is but little danger 

 of injury to the apple crop from late spring frosts, as a number of 

 consecutive days with temperatures high enough to start the tree 



