92 



Dr. Holyoke's Tabic of Results. 



1792 



I Mth. Oris 8 AM Noon ©set 10 vu 



1"^ Jan, '14.6 15. 9!23. 



'/2 



^ 2 ^ 



o S =5 



9 20. 4 

 Feb,'2Ll'23. 0\^2. 7,27.6 

 Mar. 33. 3 37. G 45, 5:39.4 



c; 5 '■« 



P O r; 



CO -VJ O 



Apr. 40,0 47. 



gfMay 50. 6'59. 7 

 &, June 5S. 65, 7 

 2 July 62.2 71. 



54, 

 68. 

 73. 

 78. 

 2;Au<t.G0,5;C8. Gl77. 



S3 



IG.o 

 23.38 



35.9 

 43.6 



Sep.!49, 7156. 9 66. 2 



4 48. 3 



2.59. 5 54. 8 

 63.1 59.5 



3 70. 64. 6 

 69. 6 G4. 2 

 59. 3154. 



Oct, 145.3 52. 6l58. 

 Nov. 36. 39. 2U7. 



iDec.;20.1 22.3!31. 

 Mean) 



6 53.1 

 4|43. 4 

 9*28. 3 



47.1 



38.9 

 23.3 



Mean 



19.lt 



2G.89 



39.6 



48.3 



60.55 



65,3 



70. 9G 



69.85 



59,1 



52.85 



42.22 



26. 45 



146.7^54.76148.5143. 81|48.44 



03 







j£ 





c o 

 a 



I 



an. 



Feb. 



Hottest 

 dav. 



Coldest 



34440 

 4 44 



Mar, '28 62 



dav 



23*1-1 10 





Apr. 

 Mav 



s rt 



«^ 





tt 



2 

 31 



June 20 

 July I 1 



Aut£. 





o 





• Cl 



p Sep. 

 £ Oct. 

 X Nov. 

 ^ Dec. 



19 

 8 



10 

 5 

 5 



74 

 94 



93 



90 



95,5 



8G 



70 



C6 



48 



11 

 6 

 15 

 18 

 8 

 24 

 31 

 27 

 22 

 21 

 19 



8 



28 



S4 



42 



48 



56 

 50 



37 



32 



22 

 4 



Greatest 

 change in 



24 hours. 



28 220 

 4 23 

 28 22 



23 

 27 

 29 



2 



20 



9 



3 



20 



28 



23 

 35 



25 

 25 

 28 

 30 

 23 

 22 

 18 



Range 

 of eacli 

 month. 



55' 



44 



34 



40 



50 



45 



34 



45.5 



49 



38 



44 



44 



1 



^ a. 



( 



4J c3 



C 



o 



CO 



O 



o 



Thermom. at SOOiThermom. 

 and upwards in 



May 

 June 



7 days 

 10 



at 900 

 and upwards in 



fe o 



a 



o 







"S 



^ 



en 



■w 



Q 



33 CC 



^ I July 15 



"l! August 10 



September 2 



^ 



44 



Jlay 



June 

 July 



August 



2 days 



2 ■ 



1 



3 



8 



a 



o 



a 



a> 



.^ 



2 

 ^ 



o 



CM 



CO 





:3 >. 



o 



C3 



C5 



o 



'« 



Thermom. at 32o 

 and under in 



Hot. d. July 19,9505 



o 



O 



January 

 February 

 Man li 

 April 



October 

 Xovember 

 December 28 



29 days 

 25 



10 



1 



1 

 8 



Thennom. ac 09 

 and under iu 



January 3 day 



3 



3 



Coldest day. 

 January 23, 







102 



iiesults from the "whole 7 years ob- 



servations. 



Mean of means 

 of each mouth. 



Jan. 

 Fub. 

 Mar. 

 Apr. 

 May- 

 Juno 



July 

 Aug. 



Sep. 



Oct. 



\ov. 



24. 

 25. 



36. 



56. 

 67. 

 71. 

 69. 

 61. 

 40. 

 40. 

 27. 



808 

 07 

 257 

 151 



871 



212 



29(> 



751 



317 



544 



09 



775 



g jecuumg JO u\:di^ g 



o ^ uu ijuudi^ JO ui^ai\[ ^ 

 ^3 — — — 



o 



CO 





*3 coccioeocOi.':iC2 r-j 



CQ I— t lO »c O CO '^ 



B 



a 



CJ 



oc 'Cn cc Q CO CO ' 



^ Cff r-i OP M 35 O I- , . 



1-^ C£!L— O t* ^ — 



CO 



of. 



o 



Mean 47°, 928 



o 



(J "^ 



c5 





^ 1- QQ O -^ C^ CO 10 ^^ 

 ^ 10 i4 i^^ 'i^ *- c^ id ^ 



OD CO ^JC CCQl m 





Mean of each time of Mean t^-mperature of 



observation. 



8 A.. M.« 



Xooa 

 tiuu set 

 10 P. M. 



Mean 



tion at 

 nearest 



46. 55 

 54. 15 



47. GO 

 43. 7 



each year, 

 1786 

 1787 



17S8 

 1789 



1700 



4S. 11791 



The observa- 1792 

 sun settinj*,' • 



the mean Mean tcm. 



48.53 



47. SS 



47.676 



47.68 



46.43 



48.9+35 



48.44 



47.045 



temperature. 



I 



From the jiiean of aU these means, the 

 annuai temporatui^e of our atmosphere ap- 

 pears to be 47^. iJ45. But as none of these 

 observations were made at the coldest thue 

 of the day, vh, about sunrising, it is prob- 

 able that the true temperature may be 

 stated a Uttle lo^veij yiz. at 47°. 50. 



The range of the Therm. iMean number of 

 Greatest rana:e in 24 hours, hot and cold d.iys. 



Nor. 25, 1768, 41^ 



Greatest monthly range 

 January 1780 69^ 



Least monthly range. 

 May 178G 20 



Kange of each ^^tson. 



Wint. from —11 to 56:67. 

 £^nm. from 48 to 96. 5:48.5 

 Sprinjr from 3 to 94:01 

 Aut. from 4 to 87:83 



96.5 



110 iVi 



Mean nuinbor of 

 days at 80*^ and 

 upwards. 38 

 Mean num- 

 ber of days 

 at 90^ and 

 upwards 5 4-7 



Mean heat 

 of hottest 

 days. 93^.9 



The hottest day, 



Jaly 13, 1791, 

 I Coldest day, .Tan. 17 

 1786 & Jan. 23, 1792,— 11 

 Greatest range in 7 



years, 107.5'coldest day 

 The mean annual 



range is 99.7 



Mean number of 

 days at 32^ and 

 under 100,2-7 



Mean 



number of 

 days at 0*^ 



& under 

 Mean heat 



3,5-7 



5^.8 



iror:Thete:L'ter^™tu::'-'"^'rf '--'^ equal to m;an at sunsetting) tl 88. 



o^eyflyTrm^^hM,^^'\^'^ ',T 'H? ™^»° ''' '""^ hottest and coldest time of the day, for 



rednoe it to 470 M 0^470^^^^^^^ temperature ought to be stated lower tlian 47°. 945 aud will probably 



Naline and" GUwTrSoTl°ra Jml^'^wfl °^ff"^«™^^'''* ^™'''^''-' "'^"•"'"''nte made by Mnrtin 

 open air, on the north skle of a ho^ i S^ tl • '"P^ ^'"^^^ ""'"• ^"'^ ^*"'« "'"P^ndod in the shade in the 

 J^! n rtu sKle ol a house in the mam street in Salem, about 6 or 7 feet from the ground. 



