42 



USEFUL PLANTS OF GUAM. 



Moore, Chief of the Weather Bureau, was detailed to examine and 

 interpret the records forwarded to the United States Hydrographic 



Office: 



Temperature, 1902. 



[Degrees Fahrenheit and centigrade.] 





Mean. 



Absolute. 



Mean daily 

 range. 



Month. 



°F. 



°C. 



Maximum. 



Minimum. 



°F. 



°C. 





°F. 



°C. 



°F. 



°C. 





79 

 80 

 80 

 81 

 82 

 82 

 81 

 81 

 80 

 80 

 79 

 78 



26.1 

 26.7 

 26.7 

 27.2 

 27.8 

 27.8 

 27.2 

 27.2 

 26.7 

 26.7 

 26.1 

 25.6 



86 

 86 

 87 

 87 

 88 

 90 

 90 

 88 

 87 

 88 

 85 

 85 



30.0 

 30.0 

 30.6 

 30.6 

 31.1 

 32.2 

 32.2 

 31.1 

 30.6 

 31.1 

 29.4 

 29.4 



70 

 71 

 72 

 73 

 72 

 73 

 75 

 74 

 73 

 70 

 69 

 66 



21.1 



21.7 

 22.2 

 22.8 

 22.2 

 22.8 

 23.9 

 23.3 

 22.8 

 21.1 

 20.6 

 18.9 



8 



8 



10 



8 



9 



10 



9 



9 



11 



10 



11 



9 



4.4 





4.4 





5.6 





4.4 





5.0 





5.6 



July 



5.0 





5.0 





6.1 





5.6 





6.1 





5.0 









82 

 78 



27.8 

 25.6 



90 



32.2 







17 

 3 



9.4 





66 



18.9 



1.7 













80 



26.7 



87 



30.6 



72 



22.2 



9 



5.0 







Rainfall, 1902. 

 [In inches and millimeters.] 



Month. 



January . . 

 February . 



March 



April 



May 



June 



July 



August . . . 

 September 

 October... 

 November 

 December 



Sum 

 Maximum 

 Minimum 



Total. 



Inches. 



3.58 

 7.30 

 3.21 

 3.87 

 4.55 

 7.14 

 16.06 

 19.72 

 27.01 

 9.63 

 11.86 

 2.53 



116. 46 

 27.01 

 2.53 



Millime- 

 ters. 



90.93 

 185. 42 



81.53 



98.04 

 115. 57 

 181. 36 

 407. 92 

 500. 89 

 686. 06 

 244. 60 

 301. 24 



64.26 



2, 958. 12 



686. 06 



64. 26 



Percent- 

 age of 

 annual 

 rainfall. 



3.1 

 6.3 



2.8 

 3.3 

 3.9 

 6.1 

 13.8 

 16.9 

 23.2 

 8.3 

 10.2 

 2.2 



100.0 



23.2 



2.2 



Maximum in 24 hours. 



Inches. 



1.01 



2.24 



.90 



.71 



.92 



2.92 



6.26 



4.72 



5.31 



2.81 



2.62 



.77 



Millime- 

 ters. 



25.65 

 56.90 

 22.86 

 18.03 

 23.37 

 74.17 

 159. 00 

 119. 89 

 134. 87 

 71.37 

 66.55 

 19.56 



Number of days with rain, and amounts, 1902. 



Month. 



More 

 than a 

 trace. 



More 

 than 

 0.10 

 inch. 



More 

 than 

 0.50 

 inch. 



More 



than 



1 inch. 



Month. 



More 

 than a 

 trace. 



More 

 than 

 0.10 

 inch. 



More 

 than 

 0.50 

 inch. 



More 

 than 

 1 inch. 





18 

 21 

 16 

 19 



22 

 25 

 28 

 28 



11 

 9 

 9 

 11 

 9 

 12 

 17 

 23 



2 

 4 

 2 

 3 

 3 

 4 

 7 

 12 



1 

 3 

 

 

 

 1 

 5 

 4 



September 



27 

 21 

 25 

 15 



26 

 12 

 17 

 9 



15 

 7 

 6 

 1 



8 



February 



3 



November 



December 



Sum 



Maximum 



Minimum 



4 















265 

 28 

 15 



165 



26 



9 



66 



15 



1 



29 



July 



8 













