94 



KANSAS ACADEMY OF SCIENCE. 



The following table gives the mean temperature, the extremes of temper- 

 ature, the velocity of the wind, the per cent, of cloudiness, the relative 

 humidity, and the rainfall, for each month of the year 1879: 



Months. 



January.... 

 February.., 



March , 



April 



May 



June 



July 



August 



September 



October 



November. 

 December., 



Mean .. 



23.49 

 34.06 

 48.22 

 56.40 

 69..50 

 73.22 

 79.14 

 75.78 

 65.40 

 60.46 

 44.26 

 26.23 



"> S s 

 • " s 



54.67 



53.0 

 74.0 

 87.0 

 84.0 

 93.0 

 97.0 

 97.5 

 99.5 

 92.0 

 87.5 

 76.5 

 65.5 



83.8 



La? 



0.37 

 0.41 

 0.37 

 4.18 

 1.60 

 7.14 

 3.66 

 1.03 

 3.57 

 2.81 

 5.15 

 2.39 



2.72 



SUMMARY FOE THE YEAR 1880. 



The year 1880 surpassed all previous years of our record in the warmth 

 of its January, the coldness of its November, its maximum monthly and 

 hourly velocity of wind, and the earliness of its spring and winter. Maples 

 were in blossom February 11th, and genuine winter weather began Novem- 

 ber 11th, continuing without interruption to the end of the year. 



The temperature, wind velocity and relative humidity were above, while 

 the fall of rain and snow and the cloudiness were below, the annual averages. 



The most remarkable meteorological event of the year was the wind storm 

 of March 27th, which filled the air to a great height with an almost impal- 

 pable dust, and obscured the sun during the entire day after 10 a. m. 



TEMPERATURE. 



Mean temperature of the year, 54.01°, which is .72° above the mean of 

 the twelve preceding years. The highest temperature was 101°, on August 

 18th; the lowest was 12° below zero, on the 29th of December, giving a 

 yearly range of 113°. Mean at 7 a. m., 48.10°; at 2 p. m., 63.55°; at 9 p. m., 

 52.20°. 



Mean temperature of the winter months, 34.88°, which is 5.17° above the 

 average winter temperature; of the spring, 56.63°, which is .33° below the 

 average; of the summer, 74.92°, which is 1.60° below the average; of the 

 autumn, 49.56°, which is 3.58° below the average. 



The coldest month of the year was December, with mean temperature, 

 25.84°; the coldest week was December 25th to 31st, with mean temperature, 

 9.41°; the coldest day was December 28th, with mean temperature 2.7° be- 

 low zero. The mercury fell below zero only twice during the year, on De- 

 cember 28th and 29th. 



The warmest month was July, with mean temperature 75.75°; the warmest 



