118 KANSAS ACADEMY OF SCIENCE. 



below zero, on the 15th of January; giving a range of 117°. Mean, at 7 a. m., 46.91°; 

 at 2 P.M., 60.79°; at 9 p.m., 50.71°. 



Mean temperature of the winter months, 28.41°, which is .37° below the average 

 winter temperature; of the spring, 52.75°, which is 1.03° below the average; of the 

 summer, 75.18°, which is .59° below the average; of the autumn, 52.77°, which is 1.27° 

 below the average. 



The warmest month of the year was July, with mean temperature 79.52°; the 

 warmest week was July 28th to August 3d, mean 83.77°; the warmest day was August 

 2d, mean 87.125°. The mercury reached or exceeded 90° on 28 days, (12 below the 

 average number,) viz.: six in June, 17 in July, 3 in August, and 2 in September. 

 The temperature at no time reached 100°. 



The coldest month was January, with mean temperature 17.70°; the coldest week 

 was January 14th to 20th, mean temperature 3.33°; the coldest day was January 

 15th, mean 11.25° below zero. The mercury fell below zero on 9 days, of which 8 

 were in January and 1 in February. 



The last hoar frost of spring was on May 19th; the first hoar frost of autumn 

 was on September 28th; giving an interval of 132 days, or nearly 5 months, entirely 

 without frost. This is 24 days shorter than the average interval. 



The last severe frost of spring was on April 29th; the first severe frost of autumn 

 was on November 9th; giving an interval of 203 days, or nearly 7 months, without 

 severe frost. The average interval is 198 days. No frosts during spring and autumn 

 caused damage to crops of grain and fruit; but the low temperatures of January 

 were generally destructive to peaches and cherries. 



The entire rainfall, including melted snow, was 44.17 inches, which is 9.51 inches 

 above the annual average. Either rain or snow, or both, in measurable quantities, 

 fell on 83 days — 20 less than the average. On 17 other days rain or snow fell in 

 quantity too small for measurement. 



The number of thunder showers was 37. There were five light hail storms during 

 the year — two in May, two in August, and one in October. 



The entire depth of snow was 22 inches, which is exactly the yearly average. Of 

 this amount, 3 inches fell in January, 2 inches in February, 2 inches in March, 12 

 inches in November, and 3 inches in December. Snow fell on 25 days, on 10 of which 

 the quantity was too small for measurement. The last snow of spring was on March 

 27th. The first snow of autumn was on November 9th, which is just the average 

 date. 



FACE OF THE SKY. 



The mean cloudiness of the year was 42.49 per cent., which is 1.71 per cent, below 

 the average. The number of clear days (less than one-third cloudy) was 179; half- 

 clear (from one to two-thirds cloudy), 95; cloudy (more than two-thirds), 92. There 

 were 78 days on which the cloudiness reached or exceeded 80 per cent. There were 

 61 entirely clear and 42 entirely cloudy days. The clearest month was September, 

 with a mean of 22.44 per cent.; the cloudiest month was March, mean 53. 87 per cent. 

 The percentage of cloudiness at 7 a.m. was 48.77; at 2 p.m., 44.71; at 9 p.m., 34. 



DIKECTION OF THE WIND. 



During the year, (three observations daily,) the wind was from the S. W. 316 

 times, N.W. 201 times, S. E. 205 times, N. E. 135 times, N. 101 times, E. 73 times, S. 

 56 times, W. 11 times. The south winds (including southwest, south aud southeast) 



