270 TRANSACTIONS OF THE 



Clear days, 31. No fair and no cloudy days, and no days upon which 

 rain fell. Highest wind velocity, 24 miles per hour, from the south. 



September — Average temperature, 70.4°, being 1.8° above the normal. 

 Rainfall, .02 of an inch, being .09 of an inch below the normal precipi- 

 tation. No frosts. Highest and lowest river, 7.3 and 7.2 feet. Highest 

 and lowest temperature, 100° and 46°. Thunder storms, 1. Solar halos, 2. 

 Clear days, 23; fair, 7; cloudy days, none; days upon which rain fell, 3. 

 Days maximum temperature above 90°, 10. Highest velocity of the wind, 

 24 miles per hour, from the northwest and southwest. 



October — Average temperature, 66.5°, being 4.2° above the normal. Rain- 

 fall, none, being .70 of an inch below the normal precipitation. Highest and 

 lowest river, 7.2 and 7.2 feet, that is, there was no change in the river during 

 October, at the hour of observation, 11a. m. each day. Highest and lowest 

 temperature, 92° and 42°. Number of days maximum temperature above 

 90°, 4; clear days, 28; fair, 3; cloudy, none; and no days upon which rain 

 fell. Highest hourly velocity of wind was 33 miles, from the northwest. 



November — Average temperature, 54.7°; being 1.5° above the normal. 

 Rainfall, .45 of an inch, being 1.06 inches below the normal precipitation. 

 Highest and lowest river, 7.6 and 7.2 feet. Highest and lowest tempera- 

 ture, 75° and 28°. Thunder storm, 1; light frosts, 5; heavy frosts, 3; clear 

 days. 24; fair, 3; cloudy, 3; days upon which rain fell, 4. Number of days 

 the minimum temperature was below 32°, 2; highest velocity of 'wind, 27 

 miles per hour, from the northwest. 



December — The average temperature was 46.7°, being 0.5° less than the 

 normal, as deduced from a record of thirty-four years. Rainfall, 2,09 inches, 

 being 2.33 inches less than the average precipitation, as obtained from a 

 record of thirty-nine years. The highest and lowest temperature was 65° 

 and 29°. The highest and lowest river, 10.8 and 7.5 feet. There were 3 

 light and 10 heavy frosts; winds obtaining a velocity of 25 miles or more 

 per hour, occurred as follows: On the first, 40 miles, from the southeast; 

 thirteenth, 30 miles, from the northwest; fourteenth, 27 miles, from the 

 northwest; twentieth, 27 miles from the north; twenty-eighth, 36 miles from 

 the south. 



The year 1887, in its meteorological features, as reviewed from the above 

 data, shows the annual mean temperature to have been about equal to the 

 normal, as deduced from a record of thirty-four years. As compared with 

 Signal Service data from the beginning of observations, July, 1877, we find 

 this year has more clear days (267) than has ever before been recorded. 

 The greatest number before, was 263 days, in 1883, and the least number 

 208 days, in 1879. For the first time since 1863, the prevailing direction 

 of the wind was from the northwest. There has been but six years out of 

 thirty-five when this has occurred, being 1853, 1854, 1855, 1862, 1863, and 

 the present year, 1887. All other times from the south or southeast. 



