232 TRANSACTIONS OF THE 



inch; this month gave only a sprinkle; two solar halos, and two parhelias, 

 or sun dogs, on the ninth; highest river. 9 feet; lowest, 7.8 feet. 



August — The mean temperature was 1.4° above the average for 33 years; 

 the highest temperature recorded occurred this month, and was 105°; rain- 

 fall, none, the average of many years being a sprinkle; highest river, 7.8 

 feet; lowest, 7.3 feet. 



September — The mean temperature was 1.2° warmer than the average 

 for 33 years; the average rainfall for many years is .11 of an inch; this 

 month gave .08 of an inch, or a very small amount below the mean; light- 

 ning on the fifth and sixth; highest river, 7.10 feet; lowest, 7.3 feet-; solar 

 halo on the eighth. 



October — The mean temperature was 1.9° warmer than the average for 



33 years; the average rainfall for many years was .72 of an inch, while 

 this month only gave .02 of an inch, which is .70 of an inch below tbe 

 average for many years; sheet and forked lightning on the sixth; solar 

 halo on the twelfth; coronae around the moon on the twenty-third; highest 

 river, 7.7 feet; lowest, 7.5 feet. 



November — The mean temperature was 1.1° greater than the average 

 for 33 years past; there was 2,705 miles more wind than usually sweeps 

 over this station during November; this month was warmer, and gave more 

 wind and a higher velocity, more rain, and more cloudy and rainy days 

 than are usual for the third month of the rainy season. There were 9.44 

 inches more rain than the average for 36 years; rainfall for the month. 

 11.34 inches — the average for many years being only 1.90 inches; there 

 were three frosts; highest river, 21.2 feet; lowest, 7.5 feet; first frost of 

 Autumn, November twelfth. 



December — The mean temperature was 2.1° warmer than the average 

 of 33 years; the rainfall was 5.76 inches, which is 1.11 inches more than 

 the average precipitation of 36 years. There was a lunar halo on the 

 twenty-fourth, and five light frosts; highest river, 23.9; lowest, 17.2 feet. 



We find by the above annual review that the mean temperature for each 

 month was above the average of many years, except June and July; these 

 months were below the average. 



The mean temperature for the year 1885, is 61.2°, while the average for 



34 years is 60.2°, showing the year 1885 to have been a warmer one than 

 usual. The rainfall from January to June was the least ever known to 

 have been precipitated, and the rainfall from September to December third 

 was the most ever precipitated, except in 1852, when 19.41 inches was 

 measured against 17.21 inches for 1885. • 



January, 1886 — The mean temperature for January was 1.3° below the 

 average of many years; the rainfall was 7.95 inches, which is 4.18 inches 

 in excess of the average precipitation during the last 30 years. There 

 was killing frosts on nine days; and lightning in the northeast on the 

 twentieth, after the heaviest wind storm that has ever visited Sacramento. 

 Lightning, too, in January, is an unheard of thing for this vicinity. 



The maximum velocity of wind was over forty-four miles per hour on the 

 twentieth, and on one occasion during the day five miles was made in five 

 minutes, which is at the rate of sixty miles per hour. 



The highest river was 25.6 feet on the twenty-eighth; the lowest river 

 was 17.1 feet on the eighteenth. This was the highest water in the river 

 since February 4, 1881, when it reached 26.6 feet. First killing frost of 

 this season was on January second. 



February, 1886 — The mean temperature for February was 53.3°, which 

 was 2.3° warmer than the average of many years. Average rainfall, 2.866 



