ANNUAL SUMMARY FOR 1890. 



PRESSirRE. 



In Inches. 

 Actual max. reading, . . 30.64, Jan. 1st, 1 A. 

 Actual min. reading, . . iO.Oi.i, Oct. 27th, 2 P. 



Mean reduced to sea level, 30.03 



Annual range, 1.615 



AIR TEMrHJtATVJil'J. 



In Degrees Fahr. 



Highest, 92 ; 94, July Sth 



Lowest, 2 ; -6..'), March 7th 



Mean 47.7; 46.9 



Annual range • GO: 100.6 



Highest mean daily 80; 81, July 31st 



Lowest mean daily 84; S3, Dec. 30th 



JNIean maximum, -il.S; 57 



Mean minimum, 37.4; 35.9 



Mean daily range 16.8; 21.9 



Greatest daily range, . . .38; 48. .J, Apr. 13th 

 Least daily range, . 2 Feb. 2Sth, 5.5 Apr. 27th 



HUMIDITY. 



Mean dew point 40.6 



Mean force of vapor, 4378 



Mean relative humidity, 71. J 



WIND. 



Prevailing Directions. 



North, 155t 



South, 11'/ 



North West, W 



South, South West, lO^i 



Total movement .54648 m. 



Greatest daily movement, . . 410 m. Apr. Sth 

 Least daily movement, . . . 18 m. Feb. 25th 



Mean daily movement, 149.6 m. 



Mean hourly velocity, . . . . • . . . . 6.2 m. 

 Max. pressure per sq. ft., 



27j lljs.=74 m. per hr. Jan. 8, 3 A.M. 



rit F.CIPITA TION. 



Total rain-fall or melted snow, 



39.48 in. 48.5 in. 



Number of days on which .01 of rain, 



or melted snow fell, 141. 

 Total snow fall in inches, 43i 



If'EATHEIi. 



Mean cloudiness observed, 57'<' 



Total cloudiness recorded by the Sun 



Thermometer, 2279 Ins., or Sljt 



Number of clear days, 137 



Number of fair days 105 



Number of cloudy days, I23 



BlilGBT SUNSHINE. 



Number of hours recorded, 3194 



Menu Ozone, 38;o 



DATES OF EROSTS, 



Last, May 12th 



First • Sept. 25th 



DATES OF SNO Jt'. 



Last April Sth 



First, Oct. 19th 



28 halos were observed. 79 per cent, were accompanied by storm within 24 hours, and 

 61 percent, within 48 hours after the occurrence of the halo. 



The rain fall was a trifle above the average for fifty years as recorded at Amherst Col- 

 lege. The temperature was also above the mean for the same time. 



C. D. WARNER, Meteorologist. 

 A. T. BEALS. Assistant. 



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