METEOROLOGICAL SUMMARY FOR THE YEAR 1S82 r^ll 



of immunity from severe frost in the past fifteen years. No frost during the year 

 caused damage to fruit buds or trees. The hoar frost of May 2 2d injured straw- 

 berries in some locaUties. 



Rain. — The entire rainfall, including melted snow, was 27.60 inches, which 

 is the smallest annual rainfall on our fifteen years record, and is 7.12 inches be- 

 low the average. Either rain or snow, or both, fell on 102 days, one less than 

 the average. On fourteen of these days the quantity was too small for measure- 

 ment. 



The longest drouth in the fifteen years of observation, was from July 30th to 

 September i8th, during which period of seven weeks less than a tenth of an inch 

 of rain was registered. This drouth was not disastrous, because the staple crops 

 were already well matured before the drouth began. 



The number of thunder showers was twenty six. Hail fell on seven days. 



Snow. — The entire depth of snow was eighteen inches, which is 3.31 inches 

 below the average. Of this amount two inches fell in January, two in February, 

 nine in March and five in December. Snow fell on fourteen days. The last 

 snow of spring was on March 9th, the first snow of autumn was on November i6th. 



Face of the Sky. — The average cloudiness of the year was 45. 41 per cent, 

 which is 1.08 per cent, above the average. The number of clear days (less than 

 one-third cloudy) was 162; half clear (from one to two thirds cloudy) 103; cloudy 

 (more than two-thirds) 100. There were eighty days on which the cloudiness 

 reached or exceeded go per cent. There were fifty- three entirely clear and forty- 

 seven entirely cloudy days. The clearest month was August, with a mean of 

 32.37 per cent.; the cloudiest month was December, mean 61.61 per cent. The 

 percentage of cloudiness at 7 A. M. was 50.41; at 2 P. M. 49.82; at 9 P. M. 35.99. 



Direction of the Wind. — During the year, three observations daily, the 

 wind was from the S W. 272 times; N.W. 269 times; S.E. 155 times; S. 128 

 times; N.E. 102 times; N. 72 times; E. 71 times; W. 26 times. The south 

 winds (including southwest, south and southeast) outnumbered the north (includ- 

 ing northwest, north and northeast), in the ratio of 555 to 443. 



Velocity of the Wind. — The number of miles traveled by the wind dur- 

 ing the year was 137,736, which is 687 miles below the annual average for the 

 nine preceding years. This gives a mean daily velocity of 377 miles and a mean 

 hourly velocity of 15.71 miles. The highest hourly velocity was sixty miles on 

 March 21st, the highest daily velocity was 919 miles on January i6th; the high- 

 est monthly velocity was 16.608 miles in March. The three windiest months 

 were March, April and May ; the three calmest months were July, August and 

 September. The average velocity at 7 A. M. was 14.51 miles^ at 2 P. M. 17.73 

 miles, at 9 P. M. 15.49 miles. 



Barometer.— Mean height of barometer column, 29.113 inches, which is 

 -with one exception (1874, 29.121 inches) the highest annual mean on our record. 

 Mean at 7 A. M. 29.141 inches; at 2 P. M., 29.085 inches: at 9 P. M. 29.114 

 inches; maximum 29.985 inches on December 17th, which is more than two- 

 tenths of an inch higher than any previous maximum ; minimum 28.349 inches 



