STATE AGRICULTURAL SOCIETY. 



247 



THE WEATHER 



\. 



DR. J. B. TREMBLEY ON THE METEOROLOGY OF OAKLAND. 



Careful observations taken daily during the past year — Relative humidity — 

 Barometrical x>ressure — Monthly meteorological synopsis — Synopsis of 

 Oakland climate for nine years 2^(ist — Table of comparative annual 

 meteorology. 



The following summary of the weather for 1884 was furnished 

 Sergeant Barwick by Dr. Trembley, of Oakland : 



Observations taken at 7 a. m., 2 p. m., and 9 p. m. of each day, by 

 J. B. Trembley, M. D.; latitude, 37° 48' 20" north; longitude, 122° 15' 

 20" west; height of barometer above the sea, 24 feet. 



BAROMETRICAL PRESSURE. 



Table showing the mean, highest, and loivest monthly barometer ; also, the monthly range. 



eter not corrected for elevation or temperature. 



Barom- 



1884. 



Mean Monthly 

 Bai'ometer. 



Highest Observed 

 Barometer for 



the Month. 



Lowest Observed 



Barometer for 



the Month. 



Eange for the 

 Month. 



January _. 

 February . 



March 



April 



May 



June 



July 



August 



September 



October 



November 

 December. 



Means.. 



.30.05 

 30.00 

 29.88 

 29.96 

 29.93 

 29.92 

 29.88 

 29.88 

 29.96 

 29.93 

 29.99 

 29.98 



29.94 



30.45 

 30.36 

 30.20 

 30.18 

 30.05 

 30.10 

 30.04 

 30.05 

 30.05 

 30.10 

 30.10 

 30.13 



30.15 



29.55 

 29.36 

 29.50 

 29.52 

 29.78 

 29.70 

 29.82 

 29.79 

 29.70 

 29.72 

 29.72 

 29.47 



29.63 



.90 

 1.00 

 .70 

 .66 

 .27 

 .40 

 .22 

 .26 

 ,38 

 .38 

 .33 

 .66 



.51.33 



BAROMETRICAL RKCAPITULATION. 



Mean barometer for the year 29.94 



Maximum barometer for the year, January 1, 9 a. m 30.45 



Minimum barometer for the year, February 20, 2 p. m. 29.36 



Highest monthly range for the year 1.00 



Lowest monthly range for the year .22 



Yearly range .88 



