134 



TWENTIETH ANNUAL REPORT OF THE REGENTS. 



TABLE IV. 



Results from the Barometer and Ttain-guage, 



186(5. 

 MONTHS. 



Monthly 

 Mean. 



Highest 

 Mean. 



Lowest 

 Mean. 



Highest. 



Lowest. 



Eange. 



Water. 



General 

 average. 



January. . . 

 February. . 



March 



April 



May 



June 



July 



August. . . . 

 September. 

 October. . . . 

 November . 

 December.. 



29.55 

 29.50 

 29.44 

 29.45 

 29.32 

 29.42 

 29.51 

 29.44 

 29.51 

 29.68 

 29.47 

 29.43 



29.47 



30.48 

 30.01 



29.83 

 29.81 

 29.65 

 29.74 

 29.75 

 29.74 

 29,80 

 30.00 

 30.70 

 30.00 



29 13 



29.00 

 29.04 

 28.76 

 28.89 

 28.98 

 29.31 

 29.28 

 29.14 

 29.13 

 28.78 

 28.88 



30.52 

 30.10 

 29.84 

 29.84 

 29.67 

 29.75 

 29.77 

 29.75 

 29.84 

 30.02 

 30.12 

 30.05 



29.05 

 28.94 

 28.86 

 28.67 

 28.77 

 28.92 

 29.22 

 29.22 

 29.11 

 29.13 

 28.72 

 28.68 



1.47 

 1.16 

 0.98 

 1.16 

 0.90 

 0.83 

 0.55 

 0.53 

 0.73 

 0.89 

 1.40 

 1.37 



1.48 in. 



2.39 



2.71 



3.20 



2.90 



3.90 



1.36 



4.91 



4.11 



1.24 



3.29 



3.24 



2.099 

 1.936 

 2.1.33 

 2.487 

 3.076 

 3.021 

 3.235 

 2.827 

 3.301 

 3.221 

 2.738 

 2.506 



Yr. Mean. 







Yearl 



y range.-. 



1.95 1 24.73 32.63® 



The average height of Barometer in 30 years is 29.53 inches. Barom- 

 eter was lowest March 19, 1859, 28.24 inches ; next lowest was 28.47, in 

 1864. It was highest Jan. 8, 1866, 30.52; next to the highest, Jan. 1^ 

 1839, 30.47 inches. The range in these years was 2.28 inches. 



The Barometer was higher Jan. 8, 1866, than before on record, at 

 Albany, New- York, Mohawk and Geneva in this State ; also, at Toronto, 

 Michigan University and Boston, as well as at Rochester. 



The water fallen in rain and snow this year is about two inches above 

 the average, which for 30 years is 32.63 inches. The preceding table con- 

 tains the monthly averages of .water, for 30 years, in the last column ; 

 also the annual averages will be found in Table V. 



FALL OF WATEB IN RAIN AND SNOW. 



In the following Table ( V.), the results for the first fourteen years had 

 been already published in the Meteorology of this State (1855) ; but many 

 numbers there given were incorrect. By recurrence to the originals these 

 have been corrected, and are here accurately presented. Of course, the 

 tiue means and averages differ sumewhat from those given in the Regents' 

 Report for 1864 and 1865. The results should have been as they are now 

 found in the following Table. It contains the sums of water for the first 

 and second half years, as well as for the year. The sum and average 

 water for each month are found at the bottom of the months, and from the 

 monthly averages is derived the average water for the thirty years. 



Besides the errors here corrected, there are several in the summing of 

 the Rochester Reports in the State Meteorology. The longitude of Roch- 

 ester is too small by two degrees, which places this city two degrees east 

 of Auburn instead of near as much west of it. The 10° helow in Dec. 

 1847, should be 10° above; on same page, 402, the mean temperature of 

 second half of May should be 58.35°, and not 38. 35"". and the mean at the 

 bottom should be 36.75, and not 45,09 ; on page 403, the mean of May 



