24 



RESULTS OF METEOROLOGICAL OBSERVATIONS 



The mean daily temperatures from May 4th to May 30th, from 31 years of obser- 

 vations at Marietta, and from 51 years of observation at Brmiswick, are as follows: — 



May 4 



5 



6 



7 



8 



9 



10 



11 



12 



13 



14 



15 



16 



larietta. 



Evunswick 



60°.6 



51°.7 



61.1 



51.2 



59.2 



52.1 



60.2 



53.0 



59.5 



53.4 



59.4 



53.4 



58.9 



52.6 



61.1 



53.3 



60.9 



54.3 



61.1 



54.7 



62.5 



54.3 



61.8' 



55.4 



62.9 



56.6 



May 17 



" 18 



" 19 



" 20 



" 21 



" 22 



" 23 



" 24 



" 25 



" 26 



" 27 



« 28 



" 29 



" 30 



Marietta. 



Biunswic 



63°.4 



56°.3 



62.6 



56.5 



61.5 



56.6 



61.4 



56.6 



62.4 



56.7 



64.3 



56.9 



64.9 



58.3 



63.7 



57.7 



63.42 



59.2 



64.4 



57.8 



65.3 



t8.9 



66.2 



59.5 



67.2 



59.5 



66.2 



59.3 



The above Marietta numbers, plotted on diagram (F), do not indicate any devi- 

 ation from the normal temperature about May 14th, nor any depression of the 

 temperature about the end of the month ; the Brunswick numbers progress so regu- 

 larly that it was unnecessary to project them. 









DiAGKAM F. — Marietta, Ohio. 







68° 



^ ' ' 





' ' ' ' ' 





_ 



66 











,.^i:><-' . 



64 



62 



- 





^.^-^-r^T^^-^^y 



-vTx 



- 



60 



- -^ 



:^<: 



-^/ 



1 1 1 1 1 



-J \ — 1 — 1 — 



4 5 6 7 8 9 10111213141516171819202122232425262728293031 

 May. 



Other suspected periods of temperature irregularities are about February 12th, 

 and between the first and second week in March. 



The mean daily temperatures from February 7th to 21st from 32 years of obser- 

 vation at Marietta, and from 51 years of observation at Brunswick, are as follows: — 



February 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 



February 7 

 « 8 



Marietta. 



. 30°.0 

 . 30.7 



Brunswick 

 22°. 6 

 22.5 



9 



. 31.6 



21.8 



" 10 



. 31.7 



23.1 



" 11 



. 32.0 



22.8 



" 12 



. 33.0 



20.9 



" 13 



. 32.4 



21.1 



llarietta. 



Brunswick 



33°. 6 



21°.8 



33.7 



23.1 



32.7 



23.4 



30.9 



23.5 



33.6 



24.9 



36.2 



22.4 



36.6 



25.5 



37.3 



28.9 



Computed temperature, 62°.8. 



2 Computed temperature, 65°.4. 



