TABLES OF DIFFERENCES OF MEAN TEMPERATURES. 151 



Hour. 



Jan. 



Feb. 



Mar. 



April. 



May. 



June. 



July. Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Year. 





Galveston, Texas. Lat. 29° 18'. Long. 94° 47' W. of G. 









Alt. 20 feet. June, 1851, to Feb. 1853, inclusive. 









^ 



Q 



















° 



























Mdn't 



I.O 



—1-3 



—2.6 





















—2.4 



—2.6 



—1.8 



—0.7 





I 



—1-3 



— I 



9 



— 3-0 





















— 2.2 



—3 







— I.I 



—0.6 





2 



—1-5 



— 2 







—3-4 





















— 2.2 



—3 



4 



— 1.6 



— I.I 





3 



—1-7 



— 2 



2 



—3-7 





















—2.6 



—3 



8 



— 2.0 



—1-3 





4 



— 2.1 



—4 



5 



—4.1 





















—31 



—4 



2 



—2.4 



—1-7 





5 



—2.5 



— 2 



6 



. —4-3 











— 5-1 











—3-2 



—4 







—2.7 



— 2.2 





6 



—2.6 



— 2 



3 



—3-9 











—3-7 











—3-2 



— 2 



3 



—2.6 



—2.5 





7 



—2.5 



— 2 



3 



—2.8 











— I.I 











1.2 



+ 1 



I 



—1.6 



—2.6 





8 



—1-5 



— 



8 



-fo.i 











+0.5 











+ 1-3 



+3 



2 



+ 1-5 



—1.8 





9 



—0.6 



+ 1 



3 



+3-2 











-^1.6 











+3-0 



+4 



2 



+2.9 



-fo.5 





10 



—2.0 



+2 



7 



+5-2 











4-1.0 











+3-9 



+4 



2 



+3.5 



+ 1.8 





II 



+2.6 



+3 



5 



+5-7 











+2.5 











+3-8 



+3 



9 



+2.7 



-f-i.8 





Noon 



-2.6 



+3 



3 



+4-9 











4-2.2 











+3-3 



+3 



9 



+2.1 



4-1.9 





I 



H-2.6 



+3 



2 



+3-9 











+2.5 











+3-2 



+3 



8 



+ 1-9 



4-2. 





2 



--2.4 



+3 







+3-S 











+3.0 











+ 2-7 



+3 



3 



+ 1.9 



-h2.0 





3 



+ 2-3 



+2 



6 



+3-0 











4-4.0 











+ 2-3 



+2 



6 



+ 1-8 



-h2.0 





4 



+2.3 



+2 



2 



+2.6 











+ 5-2 











4-1.9 



+ 1 



4 



-fi.6 



+ 1-7 





S 



4-1.6 



+ 1 



2 



+ 1.6 











+3-5 











4-1. 1 



+0 



6 



-1-0.9 



4-1.2 





6 



4-0.9 



+0 



6 



+0-4 











+0.2 











+0.5 



— 



4 



+0-4 



4-0.8 





7 



4-0.4 



+0 



2 



— 0-5 











—1-7 











-0-5 



— 



9 



— o-3 



4-0.4 





8 



0.0 



— 



3 



— I.I 





















—1-3 



— I 



3 



—0.9 



0.0 





9 



—0-5 



• — 



7 



—1.6 





















—1.6 



— I 



9 



— 1.2 



0.2 





lO 



—0.6 



— 



9 



— 2.1 





















—1.8 



— 2 



I 



—1.6 



—0.6 





II 



—0.8 



— I.I 



— 2.2 





















2.2 



— 2.2 



—1-7 



—0.7 





Comb's 





























7>2,9 



— 0.2 



0.0 



— 0.2 













0.0 



4-0.8 



— 0.3 



-0-3 





7, 2,9m» 



— °-3 



— 0.2 



—0.5 













—0.4 



-Ko.i 



—0.5 



— 0.2 





3. 9. 3. 9 



— 0.1 



-fO.2 



4-0.2 













+0.3 



+0.3 



4-0.4 



-fo.2 







Kej 



^ West, Florida. Lat. 24° 33'. Long. 81° 48' W. of G. 







Alt. 20 feet. June, July, Aug. Oct. Dec. 1851, Jan. to May, inclusive, 1 



852. 





Mdn't 



— 1.60 



— 1.54 



—2.03 



—1.95 



— 2.46 



—1.84 



2.22 



—1-45 



-1^36 



—1.27 



1 

 — 0-73 



^.19 



—1-55 



I 



-1.58 



—2.09 



—2.07 



—2.23 



—2. So 



—1.86 



—2.07 



-1.64 



— 1.60 



-1.56 



— 



84 



0.12 



—1.70 



2 



-1.65 



2.06 



— 2.03 



—2.24 



—2-75 



—2.19 



—2.32 



—1.90 



— 1.70 



— I-5I 



— 



80 



—0.08 



—1-77 



3 



-1.76 



—2.44 



— 2.20 



— 2.31 



—2.91 



— 2.28 



—251 



—2.15 



—1.83 



—1. 51 



— 



89 



—0.27 



-1.92 



4 



—1.92 



-2.56 



—2-35 



—2.32 



—3-09 



—2.54 



—2.80 



—2.28 



—1-93 



—1.59 



— I 



02 



—0.45 



—2.07 



5 



-2.36 



—3.06 



-2.78 



—2.71 



-3-65 



—2.61 



—3-09 



-2.64 



—2.27 



—1.91 



— I 



44 



— 0.96 



— 2.46 



6 



—2-37 



—3.08 



— 2.90 



— 2.64 



-3-28 



—2.31 



—2.90 



—2-51 



—2.23 



— 1.96 



— I 



78 



— 1. 61 



—2.47 



7 



—2.44 



—3.01 



—2.24 



—1.66 



—1.07 



-.1.36 



— 1-33 



—1-57 



—1.48 



— 1.40 



— 1 



59 



-1.78 



—1.74 



8 



— 1.90 



-1.85 



— 0.56 



— 0.14 



4-1. 01 



—0.16 



+0-34 



4-O.OI 



— 0.1 1 



— 0.22 



— 



76 



1.30 



—0.47 



9 



— 0,26 



O.OI 



4-1. 02 



+0-95 



+2.28 



4-1.14 



+ 1-38 



4-0.78 



4-0.72 



4-0.67 



+0 



18 



—0.32 



4-0.71 



lO 



4-0.82 



+ 1-34 



4-2.09 



4-1.66 



+2.77 



+2.17 



+2.14 



4-1.40 



+ 1-35 



+ 1.30 



+0 



81 



+0.33 



4-1. 51 



II 



+ 1-71 



4-2.16 



4-2.67 



4-1.94 



4-3.02 



+2.27 



4-2.44 



-^1.82 



+ 1-75 



4-1.68 



-I-1.28 



4-0.89 



+ 1-97 





Interpolated va 



ues, the mean of Aug. and Oct. for Sept. and the mean of Oct. and 



Dec. for Nov. 





