OF THE ATMOSPHERIC TEMPERATURE. 



187 



Day of 



Month. 



Jan. 



Feb. 



Mar. 



Apr. May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 







Portland, Maine. Lat. 43° 39'. Long. 70° 15' W. of G. 











Alt. 87 feet. 37 years of observation; from 1816 to 



1852, inclusive. Moody. 











MS. in Smithsonian Coll. 











Q 











„ 











□ 























I 



21.0 



16.4 



24.7 



36.0 



46.7 



55-0 



64.8 



64.7 



61. 1 



51.2 



41.9 



28.2 



2 



20.1 



16.1 



23.8 



36.1 



46 



9 



56.4 



65. 



7 



66.2 



61.6 



51-9 



42. 



I 



293 



3 



18.4 



19.2 



23-3 



36.1 



46 



8 



57-0 



63- 



8 



66.3 



61.8 



52.0 



40. 



I 



28.9 



4 



18.5 



18.3 



24.5 



36.S 



46 



4 



57.6 



64. 



5 



66.6 



62.7 



50-3 



40 



5 



29-3 



5 



18.0 



14.7 



26.8 



36-4 



45 



7 



58.5 



65. 







66.2 



62.6 



5°-3 



40 



6 



29.0 



6 



18.8 



17.7 



28.1 



37.6 



46 



4 



58.7 



66. 



3 



65.0 



62.8 



Si-8 



39 



3 



26.0 



7 



20.3 



19.2 



28.1 



38-8 



48 



2 



58.4 



66 



9 



65-9 



60.5 



49.6 



39 



4 



27.1 



S 



20.0 



19.2 



28.1 



38-7 



48 



6 



59-8 



66 







66.4 



60.0 



49-3 



39 



8 



28.5 



9 



21. 1 



17.2 



29.2 



38.9 



48 



8 



59.S 



66 



8 



65.6 



60.1 



50-7 



38 



6 



28.8 



lO 



22.0 



20.0 



28.7 



38-9 



47 



7 



60.3 



67 







66.4 



60.2 



49-5 



37 



9 



27.1 



II 



iS.O 



21.2 



28.6 



37-8 



48 



8 



59-9 



67 



I 



65.7 



59-3 



48.2 



37 



3 



24.1 



12 



20.4 



I8.S 



29.4 



37-9 



SO 



I 



59-4 



67 



5 



66.2 



58.0 



47-8 



37 



4 



24.1 



13 



18.3 



17.9 



311 



38-7 



49 



3 



59-1 



67 



8 



66.5 



57-5 



47.6 



35 



2 



23.1 



14 



17.9 



17.8 



29.1 



38-4 



49 



4 



60.0 



66 



6 



65.8 



57-1 



46.1 



36 



I 



^5-3 



15 



193 



18.3 



28.6 



39-0 



50 



2 



59-6 



67 



5 



65.1 



57-4 



45.2 



35 



7 



24.8 



16 



21. I 



19.8 



28.3 



38.2 



51 



2 



60.5 



66 



7 



64.0 



55-7 



46.4 



35 



7 



22.4 



17 



20.6 



19.0 



29.2 



40.2 



52 



7 



60.6 



67 



6 



64.1 



55-8 



46.4 



36 



2 



22.5 



18 



19.8 



20.9 



28.9 



39-6 



52 



6 



60.3 



66 



8 



64.2 



58.0 



47 3 



36 



3 



22.1 



19 



17-5 



21.5 



29.7 



40.6 



SI 



6 



62.7 



67 



4 



(>i-9 



58.2 



48-5 



34 



5 



21.6 



20 



18.8 



24.9 



30-9 



41-3 



SI 



5 



61.7 



67 



5 



64.2 



59.1 



45-3 



ZZ 



7 



22.2 



21 



19.9 



26.6 



30.8 



41-3 



54 



2 



62.0 



68 







63.6 



56.1 



43-5 



33 



6 



21.6 



22 



17.8 



27-3 



29.7 



43-9 



51 



9 



61.8 



68 



3 



63.8 



53-7 



43-3 



33 



4 



16.1 



23 



17.1 



25-3 



32.0 



43-0 



53 



5 



61.3 



67 



4 



64-3 



53-9 



43-7 



33 



4 



16.2 



24 



16.9 



22.0 



340 



42.7 



52 



9 



62.5 



66 



I 



639 



53-5 



44.9 



31 



2 



21-5 



25 



18.8 



22.4 



33-7 



41-3 



53 



4 



61.7 



65 



8 



64.2 



53-5 



41.9 



30 



2 



239 



26 



21. 1 



24-3 



33-1 



44.4 



S3 



2 



62.7 



64 



7 



63-4 



53-2 



41.5 



30 



2 



20.1 



27 



20.8 



24.8 



33-2 



44-5 



53 







62.8 



65 



4 



62.8 



52.8 



41.2 



29 



2 



19.6 



28 



20.1 



24.4 



33-9 



43-6 



55 



I 



63-3 



65 



6 



62.0 



53-1 



41-3 



27 



3 



22.1 



29 



19-3 



26.0 



33-6 



45-5 



53 



7 



63.2 



66 



2 



62.0 



51.9 



41.8 



28 



■9 



21.6 



30 



1S.6 





33-2 



45.6 



52 



8 



61.3 



66 







63.1 



52-3 



42.0 



29 



9 



20.8 



31 



Obse 



16.7 

 rvations £ 





34-9 





54-5 





65.7 



62.9 





39-8 





21.8 



it rise, noon, and 8 P. M. Means uncorrected. 





Usin 



g the tables for Montreal and Amherst, the correction to mean deduced from observations at 



3 rise, noon, and | 



8P. M 



, to refer 



to mean of day is very small, for 6 months it is nearly 



0, and probably does not rise to 0.2 or 0.3 in | 



any one 



month. 















Salem, Mass. Lat. 42° 31'. Long. 



70° S3' W. of G. 











Alt. 30 feet.' 43 years of observation; from 1786 to 1828, inclusive. Dr Holyok 



e. 









MS. in Smithsonian Coll. 









I 



28.0 



23-5 



31-9 



41-3 



54.8 



62.7 



73-5 



73-1 



67.2 



55-4 



41-5 



3S-0 



2 



28.2 



24.9 



30.6 



41 



7 



53-5 



63.2 





.1 



72.6 



68.8 



56.7 



41.6 



34-2 



3 



24.9 



26.5 



31-3 



41 



2 



52.2 



65.1 



72 



.8 



71-5 



68.4 



56.6 



42.8 



32-3 



4 



26.9 



27.1 



30-7 



42 



8 



54-5 



64.1 



72 



.0 



72.1 



68.0 



56.5 



42.9 



33-7 



5 



24.6 



22.8 



30.2 



44 



2 



53-7 



64.9 



72 



■7 



73-7 



66.2 



56-1 



43-9 



31-6 



6 



25.2 



24.2 



32.5 



43 



2 



52.6 



65-7 



72 



■9 



71-4 



65.4 



57-2 



43-4 



33-0 



7 



25.6 



28.2 



3I-I 



43 



8 



52.7 



65-3 



72 



•9 



72.2 



63.6 



52.1 



42.4 



2Z-Z 



8 



26.3 



28.3 



31-3 



43 



9 



52.7 



65.8 



72 



•9 



73-6 



64.9 



52.2 



41-5 



33-0 



9 



25.6 



27.2 



30-9 



43 



2 



53-7 



65.0 



72 



.8 



73-4 



64.7 



52.5 



41.5 



32.1 



10 



26.3 



25- 1 



32.0 



41 



8 



54-7 



66.7 



73 



.6 



73-4 



65.0 



54-4 



43-2 



30-4 



II 



25-1 



26.4 



34- S 



43 







54-4 



66.6 



73 







72.9 



65-3 



52.6 



41-3 



30.0 



12 



26.5 



28.6 



35-7 



43 



I 



54-4 



66.6 



73 



9 



72.6 



65.1 



53-6 



39-3 



29.0 



13 



24.6 



27.2 



35-2 



44 



5 



55-4 



68.1 





3 



72-3 



64-5 



53-2 



38.6 



30.8 



14 



23-9 



27.8 



34-1 



45 



7 



56.3 



66.8 



72 







71.0 



64.9 



52.2 



38.8 



31.6 



15 



26.5 



26.4 



34-8 



45 



6 



55-9 



67.4 



73 



6 



70.7 



65.0 



53-4 



39-1 



30.1 



16 



26.0 



25.0 



35-8 



45 



8 



55-9 



66.8 



72 



9 



71. 1 



63.6 



511 



39-3 



28.7 



17 



26.7 



26.5 



36-3 



47 



I 



55-3 



68.9 



73 



I 



71. 1 



62.7 



50-4 



38-4 



28.6 



18 



24.8 



29.7 



36.2 



47 



8 



56.7 



67.7 



73 



5 



71.0 



62.6 



47-4 



38.1 



28.7 



19 



23.0 



27.1 



36.9 



48 



I 



56.7 



69.6 



72 



I 



70.6 



62.5 



47-4 



36-4 



30-3 



20 



25.2 



30.2 



36.4 



48.9 



57-9 



68.7 



73'0 



71. 1 



60.3 



46.0 



35-7 



29.0 







' Given as 75 feet in the general 



table. 







