STATE AGRICULTURAL SOCIETY. 



309 



shadow of the earth; the total eclipse beginning at 8:30 p. m. and ending 

 at 10:30 p. m.; duration, one hour and forty minutes, During the passage 

 of the earth's shadow across the moon, frequent flashes of diffused light- 

 ning was noticed in the east. No clouds were seen. 



Summary for July, 1SS4 to 18S8, at Oroville. 



Year : 



1884. 



lstO. 1886 



1887. 



1888. 



Average. 



Mean temperature ... 

 Highest temperature. 

 Lowest temperature.. 



Clear days 



Cloudy days 



Fair days 



Rainfall... 



Season to date 



Light frost 



79.76 

 98.00 

 56.00 



.00 



.00 







Ts.so 



96.00 



60.00 



31 











.00 



.00 







81.16 



102.00 



61.00 



30 



1 







.00 



.00 







78.75 



101.00 



57.00 



30 







1 



.00 



.00 







79.08 



102.00 



56.00 



28 







3 



.07 



.07 







79.51 



99.40 



58.00 



29.30 



0.25 



1 



.01 



.01 







August, 1888 — Was one of peculiarities, although the mean temperature 

 was an average one for the last five years. The maximum was the same 

 as 1884, and 3° below 1885, yet the heat was more oppressive than either of 

 these months, owing to the humidity of the atmosphere. It is seldom dew 

 falls in this locality during the months of July and August. This year has 

 been an exception to the past five; it could be plainly seen, almost every 

 morning, on grasses and shrubbery. The latter part of this month warm 

 nights prevailed — the twenty-ninth and thirtieth showed the highest tem- 

 peratures at the 5 a. m. readings: At 5 a. m. on the twenty-ninth it was 

 76°; at 6 a. m., 72°; at 2 p. m., 92°; at 4 p. m., 105.5°, and at 9 p. m., 92°. 

 The mean temperature for the twenty-four hours was 81.1°. During the 

 nights of the twenty-ninth and thirtieth 82° was the lowest reading at 5 

 a. m. Number of days in August, for five years, the thermometer reached 

 90° and upwards: 1884, 24 days from 90° to 102°; 1885, 23 days from 90° 

 to 105°; 1886, 16 days 90° to 96°; 1887, 10 days 90° to 97°; 1888, 23 days 

 90° to 102°. The mean temperature this month was 81.2°; maximum, 102°; 

 minimum, 50°. Highest barometer, 30.02; lowest, 29.70; mean, 29.852. 

 Number of clear days, 30; cloudy, 1; fair, none. No rain fell this month; 

 for the season to date, 0.01 of an inch. Prevailing winds, southwesterly. 



Summary for August, 1SS4 to 1SSS, at Oroville. 



Year : 



1884. 



1885. 



1886. 



1887. 



1888. 



Average. 



Mean temperature .. 

 Highest temperature 

 Lowest temperature. 



Clear days 



Cloudy days 



Fair days 



Rainfall 



Season to date 



Light frost 



82.17 



98.00 



56.00 



30 







1 



.00 



.00 







82.11 



105.00 



63.00 



25 



2 



4 



.00 



.00 







81.16 



102.00 



61.00 



30 



1 







.00 



.00 







76.22 



97.00 



54.00 



30 







1 



.01 



.01 







81.02 



102.00 



58.00 



30 



1 







.00 



.01 







80.54 



100.00 



57.00 



29 



1 



1.1 















September, 1888 — Was the warmest month we have any record of. The 

 mean temperature was over 5° above the average for the last five years. 

 The highest for the month at 2 p. m. was, for the following dates, first, 

 sixth, tenth, and eleventh, 102°, and at four p. m. on the first, sixth, and 

 tenth, 103.5°; lowest at 6 a. m., 57°. 



