344 



TRANSACTIONS OF THE 



Oroville Weather for April, 1887. 



The following are the highest and lowest temperatures, and the means 

 of these, the daily mean, the daily rainfall, prevailing direction of wind, 

 and the average state of the weather for each day during April, 1887: 



Date. 



Highest 

 Temp. 



Lowest 

 Temp. 



Highest 



and Lowest 

 Av'ge Temp. 



Daily Mean. 



Kainfall- 

 Inches. 



Daily 

 Winds. 



Average 



State of the 

 Weather. 



1 



2 



b'.V.'.V. 



4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



17 



18 



19 



20 



21 



22 



23 



24. 



25 



26 



27 



28 



29 



30 



Mean 



79.0 

 78.0 

 78.0 

 77.0 

 78.0 

 65.0 

 66.0 

 55.0 

 63.0 

 56.0 

 68.0 

 61.0 

 62.0 

 72.0 

 81.0 

 72.0 

 78.0 

 73.0 

 64.0 

 68.0 

 72.0 

 76.0 

 80.0 



815.(1 



85.0 

 85.0 

 84.0 

 S4.D 

 60.0 

 62.0 



50.0 

 51.0 

 46.0 

 58.0 

 58.0 

 56.0 

 50.0 

 49.0 

 49.0 

 47.0 

 38.0 

 46.0 

 53.0 

 46.0 

 56.0 

 58.0 

 58.0 

 54.0 

 49.0 

 54.0 

 50.0 

 56.0 

 52.0 

 61.0 

 02.0 

 64.0 

 59.0 

 64.0 

 54.0 

 45.0 



64.5 

 64.5 



62.0 

 67.5 

 HS.O 

 60.5 

 58.0 

 52.0 

 56.0 

 51.5 

 53.0 

 53.5 

 57.5 

 59.0 

 (58.1 

 (55.0 

 i;n.ii 



63.5 



56.5 

 61.0 

 61.0 

 66.0 

 66.0 

 73.5 

 73.5 

 71,-. 

 71.5 

 74.0 

 55.0 

 53.5 



65.1 



63.3 

 62.0 

 68.1 

 67.0 

 58.1 

 56.2 

 53.0 

 54.0 

 53.1 

 54.2 

 53.3 

 57.1 

 61.0 

 68.1 

 62.2 

 63.2 

 63.1 

 57.3 

 (52.2 

 60.0 

 6(5.0 

 (57.0 

 71.3 

 72.3 

 73.1 

 71.3 

 72.0 

 57.0 

 54.3 



70.6 



53.9 



62.68 



(12.12 



.00 

 .00 

 .00 

 .00 

 .00 

 .75 

 .00 

 .50 

 .75 

 sprinkle 

 .00 

 .00 

 .10 

 .00 

 .00 

 .00 

 .00 

 .00 

 .55 

 .09 

 .00 

 .00 

 .00 

 .00 

 .00 

 .00 

 .00 

 .(XI 

 .07 

 .00 



2.81 



S.W. 



N.W. 



N.W. 



W. 



N.W. 



S. 

 N.W. 



S.E. 



S.E. 

 N.W. 

 N.W. 



W. 



w. 



8.E. 

 N.W. 



8.E. 



W. 

 8.W. 



S.E. 



S.W. 



N.W. 



N.W. 



N.W. 



N.W. 



N.W. 



N.W. 



S.W. 



S.E. 



S.E. 

 N.W. 



....Clear. 



Clear. 



....Clear. 



Clear. 



....Clear. 



Fair. 



....Clear. 

 . . Cloudv. 

 -Cloudy. 



Fair. 



....Clear. 

 . . < lloudy. 

 ..Cloudy. 



Clear. 



Clear. 



.... Clear. 

 .--.Clear. 

 .-.Clear. 

 ..- Clear. 

 ..Cloudy. 



Clear. 



....Clear. 



Clear. 



.-.Clear. 

 .-.Clear. 



Clear. 



....Clear. 

 ....Clear. 

 .-.Clear. 

 -...Clear. 



Meteorological Report for April, 1885, 1886, and 1887, at Oroville. 



California. 



April, 1885 — Was a mild, and pleasant month. Mean temperature was 

 64.75°, about 2° above the average. Maximum temperature, 86°; mini- 

 mum, 46°. There were 13 clear, 11 cloudy, and 6 fair days. It rained 9 

 of the 13 cloudy days. Rainfall for the month, 1.64 inches; season to 

 date, 21.72 inches. No frost this month. 



April, 1886 — Mean temperature this month was 60.27 

 the average, owing to the continuous rainstorms from 

 sixteenth. Maximum temperature, 84°; minimum, 44°. 



clear, 13 cloudy, and 4 fair days. It rained 10 of the 



, about 4° below 



the sixth to the 



There were 13 



13 cloudy days. 



No frost 



Rainfall for the month, 5.48 inches; season to date, 31.71 inches 

 this month. 



April, 1887 — Mean temperature for this month was an average for April. 

 62.12°. Maximum, 86°, on the twenty-fourth; minimum, 38°, on the 

 eleventh. A dry northwest wind prevailed from the twenty-first to the 

 twenty-sixth, running the temperature up from 80° to 86° during its six 

 days' continuance. On the twenty-ninth a light shower of rain passed 



