Meteorology for Twenty Years. 31 



monthly precipitation of a number of other points in the state 

 where observations have been made covering several years are 

 illustrated by figures taken from data published by the United 

 States Department of Agriculture, Weather Bureau, Summary 

 of the Climatological Data for the United States, Sections 23, 



24 and 25. 







TEMPERATURE. 



The highest temperature recorded at Laramie for twenty 

 years was 92 degrees in 1901. Ninety degrees was recorded only 

 three separate times so that it may readily be understood that 

 it does not get excessively warm. Eighty-five degrees is about 

 the maximum during the summer months. The lowest temper- 

 ture recorded during the same period was 42 degrees, while 

 40 degrees was recorded at another time. The average of the 

 highest temperatures recorded is 87.3 degrees, while the average 

 of the lowest temperature is 23.3 degrees ; i. e., we may ex- 

 pect then throughout the year the thermometer will register 

 87.3 and 23.3 degrees. The mean maximum temperature, 

 taking the mean of the highest temperature recorded each day 

 throughout the year, is 53.6 degrees, while the mean minimum 

 obtained in like manner is 27.7 degrees. The mean temperature 

 for the twenty years is 40.6 degrees. 



By months July gives the average highest temperature with 

 a mean maximum of 77.10 degrees, while the three winter 

 months give the lowest of 33.3 degrees for January and 33.4 de- 

 grees for February and December, respectively. 



The mean temperature for July is 62.4 degrees, which is 

 the highest, while. February gives the lowest, 21.9 degrees. 



July gives the highest mean maximum temperature, 47.9 

 degrees, while February gives the lowest, 10.5 degrees. The 

 temperature 'tables and figures give details for the various 

 months of the twenty years, so that one will be able to know 

 by studying them what the average expectation is. 



