Monthly Meteorological Itcgistcl-} at the Provincial Magnctical Obscr-vatory, Toronto^ Canada West.— August, 1854. 



Latitude, 43 dey. 39.4 min. North. Longitude, 79 deg. 21. min. West. Elevation ahove Lake Ontario, 108/ee<. 





Barom. at temp, of 



32 deg. 



Temp, of the Air. 



Mean 



Tension of Vapour. 



Humidity of Air. 



Wicd. 

















• 



Temp. 

 + or — 













































• 













Rain 









10 





6 



2 



10 





of the 



6 



2 



10 





6 



■7 



10 











.Mean 



in 





6 A.M. 



2 P.M. 



P.M. 



Mean. 



A.M. 



o 



68-6 



P.M. 



p. 31. 



m'n. 



Average 



A.M. 



P.M. 



P.M. 



0-762 



m'n' 



A.M. 



•85 



P.M. 



■71 



P.M. 



•93 



m'x. 

 •81 



6 a.m. 



2 P.M. 



10 p.m. 



Vel'j 



Inch. 



1 



29-594 



29^486 



29.487 



29-510 







87^5 







74^5 





 77^12 





 +10.15 



0-575 



0'899 



0-733 



Calm 



SSW 



WbS 



4^02 



0^025 



9 



•580 



•585 



■647 



•606 



66-6 



79-0 



62^8 



70^10 



+ 3.25 



•467 



■416 



■441 



-448 



74 



43 



79 



65 



W N W 



N W 



N N \S 



6^7.5 





3 



■061 



■577 



•463 



•559 



56-1 



75^2 



63^2 



6ft ^45 



— 1.40 



•366 



■607 



■476 



•470 



S3 



60 



84 



1 1 



Calm 



Calm 



Calm 



O^K 





4 



•438 



■436 



•517 



•475 



65^8 



73^3 



65-7 



67^8ft 



+ 1-05 



■480 



■742 



■515 



•651 



78 



94 



84 



83 



Calm 



SWbS 



X N W 



2^68 



0^210 



ft 



•681 



■578 



•525 



•557 



59.9 



77^9 



63-2 



67^33 



+ 0.43 



■421 



■563 



■454 



•504 



84 



61 



80 



78 



NWbW 



SbW 



Calm 



2^18 





fi 



•458 



•441 



, — . 



. 



59^9 



78^1 













■440 



■393 



— . 



— 



87 



42 



— 



— 



Calm 



W b N 



— 



10^75 



... 



7 



■697 



■697 



•762 



•721 



56-0 



70^o 



■52 -8 



59^9ft 



— 6.73 



■307 



■195 



■257 



•255 



70 



27 



65 



64 



Calm 



NWbW 



Calm 



9^51 





R 



■832 



•845 



•838 



•836 



58-2 



72^6 



57^7 



63^48 



— 3.18 



•365 



■556 



•304 



■412 



77 



72 



65 



70 



NWbN 



SSE 



X b W 



4^00 





9 



•831 



•786 



•717 



•773 



52^4 



72^9 



62^2 



64^22 



— 2.33 



•280 



■440 



•428 



•392 



73 



56 



78 



67 



N 



EbN 



Calm 



4-60 





10 



■702 



•646 



•007 



•645 



62^5 



76^2 



64.6 



67^92 



+ 1.40 



•423 



•465 



•522 



■462 



76 



62 



88 



71 



.VEbN 



Eb X 



XX E 



4 ■.54 



[nap. 



11 



•599 



•599 



•595 



•596 



64^3 



76 ■ft 



64^6 



69-07 



+ 2.63 



•483 



•637 



•503 



•550 



82 



72 



86 



80 



NEbE 



E 



Calm 



2^17 





12 



•595 



•545 



•467 



•526 



64-4 



80^1 



68^1 



71 -fift 



+ 5.32 



■ft.32 



•639 



•538 



•582 



90 



65 



80 



78 



Calm 



SE 



W N W 



1^52 



luap. 



13 



•470 



•508 



— . 







67-6 



80^8 



. , 









■48(1 



•494 



— 



— 



73 



48 



— 



— 



SSff 



WbN 



— 



9^54 





14 



•788 



•751 



■702 



•739 



56.7 



71^1 



59 ^2 



62 ^45 



— 3.78 



•353 



■337 



•311 



•344 



78 



45 



63 



63 



N W 



SSE 



Calm 



3^23 





1ft 



•409 



•516 



■576 



•496 



59-2 



75 ■fi 



53^1 



62^98 



— 3.17 



•435 



■373 



•319 



•380 



88 



43 



81 



VO 



Calm 



N W 



Calm 



8^08 





IK 



•624 



•610 



■652 



•630 



57-8 



77-2 



59-1 



64^45— 1.58 



■321 



■267 



•439 



•354 



69 



29 



89 



63 



W N W 



Wb s 



N W 



9^05 





17 



•665 



■677 



■719 



•689 



55-3 



71^6 



51 -3 



58-60!— 7.37 



•347 



■372 



■276 



•331 



81 



49 



74 



69 



-V-WbW 



SbE 



Calm 



4^71 





18 



•777 



•738 



■826 



•779 



52-6 



78-0 



08-2 



e4^83 — 1.00 



•315 



■382 



■365 



•368 



81 



41 



/ i 



64 



Calm 



SEbS 



Calm 



2^80 





19 



•715 



•623 



■579 



•633 



55^9 



81-7 



59-6 



66^28 



+ 0.52 



•362 



■454 



■399 



•423 



83 



43 



81 



70 



Calm 



S 



Calm 



2^27 





20 



•557 



•599 



— 



— 



63-9 



S6-2 













•462 



■533 



— 



— 



80 



44 



— 



— 



Calm 



N 



— 



7-50 





21 



•742 



•627 



■543 



•635 



56-7 



86-4 



76^1 



74-87 



+ 9.43 



•359 



•59G 



■646 



■550 



80 



49 



74 



66 



Calm 



SbE 



SWbW 



4^63 





22 



•579 



•635 



■727 



•6.58 



76-8 



87^4 



66-6 



77-67 



+12.28 



•542 



•615 



■466 



•561 



60 



49 



74 



62 



VVbN 



NWb X 



E 



7-05 



o^ioo 



23 



•823 



•762 



■678 



•748 



63-2 



68^2 



•58^6 



62-40 



— 2.73 



•466 



•520 



■370 



•444 



82 



1 / 



77 



81 



E NE 



EbX 



Calm 



2^66 





24 



•571 



■ ^536 



■609 



•572 



63 •O 



98^1 



75^4 



80^43 



+15.48 



•501 



•570 



■655 



•590 



89 



32 



77 



64 



Calm 



W 



XWbW 



8-62 



... 



25 



•678 



•673 



■598 



•646 



66-7 



75-9 



66 ^4 



69-22 



+ 4.48 



•435 



•393 



■622 



•463 



68 



45 



83 



68 



N X AV 



EbX 



Calm 



2-99 



0^040 



26 



•583 



•486 



■583 



•547 



60-3 



87^0 



69-1 



73-45 



+ 8.92 



•447 



•673 



■666 



•583 



88 



54 



82 



V3 



Calm 



S b W 



W b X 



4^85 





27 



•662 



■717 











64-9 



70^9 











•510 



•496 



— 



. — 



86 



68 



— 



— 



W S W 



EbN 



— 



2^12 





2S 



•781 



•792 



■787 



•786 



56^4 



78^5 



•59 ■S 



6ft-fift 



+ 1.52 



•403 



•425 



■391 



•418 



91 



45 



79 



70 



Calm 



EbS 



Calm 



1^87 





29 



•776 



•715 



■659 



•713 



61 ■! 



78-4 



64^0 



67^42 



+ 3.60 



•427 



•628 



■640 



•530 



81 



67 



93 



81 



Calm 



Eb S 



Calm 



3^0K 



... 



30 



•638 



•516 



■653 



•620 



68^3 



86^9 



72^9 



74-87 



+11.25 



.609 



■693 



■665 



•649 



91 



56 



83 



V8 



S 



SbE 



Calm 



4^43 



>075 



31 



•795 



•819 

 29-639 



■807 



•795 



68-7 

 61.24 



68^7 



65-0 



67-20 



+ 3.88 



■603 

 0.431 



■557 

 0.516 



■631 

 0^469 



•565 



88 

 80 



82 

 55 



88 

 80 



8/ 

 72 



ENE 



E 



Calm 

 1^64 



4 88 

 4.7-1 



Inap. 



M 



29^6U'J 



29^642 



29-6477 



78.24 



63.46 68.03!+ 2.27 



0^478 



2-86 



8^33 



)-465 



Highest Barometer 29^84.5, at 2 p.m. on 8th 1 Monthly range : 



Lowest Barometer 29^384, at 8 a.m. onl5th/ 0-461 inches. 



Highest registered temperature 99°-2, at p.m. on 24th "I Monthly range : 

 Lowest registered temperature 45°-6, at a.m. on 18th / 63°-6. 



Mean Maximum Thermometer 80°-72 "I Mean daily range: 



Mean Minimum Thermometer 56°-26 / 2-5°-46. 



Greatest daily range 38°-4, from p.m. of 24th to a.m. of 26th. 



Warmest day 24th. Mean temperature 80°-43 I Difference, 



Coldest d.ay 17th. Mean temperature 58°-60 j 21°-83. 



Greatest intensity of Solar Radiation, 107°-0 on 24th, p.m. "1 R.ange, 



Lowest point of Terrestrial Radiation, 85°-8 on 18th, a.m. J 71°"-8. 



Aurora observed on 1 night: viz. on 20th. 



Possible to see Aurora on 21 nights. 



Impossible to see Aurora 10 nights. 



Raining on 5 days. Raining 5-3 hours; depth, 0-455 inches, -which 



was the least quantity recorded for any August during the series. 

 Thuudcr Storms occurred on the 1st, 13th, 25th, and 30th. 

 Sheet Lightning, not accompanied by thvindcr or rain, observed on the 



22nd, 26th, 29th, and 31st. 



Sum of the Atmospheric Current, in miles, resolved into the four Cardinal 

 directions. 

 North. 'West. South. East. 



1230^21 1864^29 012-00 724-09 



Mean direction of the Wind, W 28° N. 

 Mean velocity of the Wind, 4-74 miles per hour. 

 Maximum velocity, 21). 6 miles per hour, from 4 to 5 p. m. on 6th. 

 Most winily day, the 6th; mean velocity, 10-75 miles per hour. 

 Least windy day, the 3i-d ; mean velocity, 0-10 " " 



During the thunder storm and heavy squall on the 30th, the velocity 

 of the wind from 2h. 20m. to 2. 45m. p.m., averaged 34 miles per 

 hour. 



The observed Tempcratm-e on the 24th, at 2 p.m., was +25°^7, and at 

 4 p.m., +23°^8 above the mean mormal Temperature of those hours 

 respectively. 



The observed Maximum on the 24th at 2 p.m. (98°^1), and the regis- 

 tered Maximum on the same day (99° ^2), were the highest entries 

 ever made at this Observatory. 



Very few shooting stars were observed from the 9tb to the 13th of 

 this month, which is one of the periods usually given for the annual 

 return of those Meteors. 







Comparative Taljlc for August. 











Temperature. 



Rain. 



Wind. 

 Mean 

 Vel'y. 







Moan. 



Dif. f 'm 

 Avr'gc. 



Max. 



obs'vd. 



.Min. 



obs'vd. 



Range. 



D's. 



Inch. 





1840... 





 64^6 





 — 1^7 





 80.1 





 47^4 





 32-7 



12 



2 •905 







1841... 



64-4 



— 1^9 



83 ■o 



46^7 



36^8 



9 



0^170 



0^]9 



lb. 



1842... 



05.7 



— 0^0 



80^7 



45^3 



85-4 



C 



2 •500 



0^30 



lb. 



1843... 



66.4 



+0^1 



85'5 



44^4 



41 -1 



4 



4^850 



0-12 



lb. 



1844... 



64-3 



—2 



82^5 



44^3 



38-2 



17 



Impt. 



O^IG 



lb. 



1845... 



67-9 



+1^G 



82 ■» 



44.4 



38^1 







1^725 



0^19 



lb. 



184G... 



68-4 



+2.1 



86 ■S 



50^4 



35^9 







1770 



0^17 



lb. 



1847... 



Go^l 



—1^2 



83 ■! 



44^9 



38^2 



10 



2^140 



019 



lb. 



1848... 



69^2 



+2-9 



87^5 



49 ■S 



38-2 



8 



0-855 



4^55 



Miles. 



1849... 



oe^s 



0^0 



79-5 



51^4 



28-1 



10 



4^970 



3 •70 



Miles. 



1850... 



66^8 



+0^5 



84 2 



43^0 



41-2 



13 



4 •355 



4^46 



MUcs. 



1851... 



G3^6 



—2^7 



79^8 



43 6 



36^2 



10 



1^360 



4^02 



Miles. 



1852... 



659 



—04 



8^2 



46-7 



345 



9 



2^695 



3^30 



Miles. 



1853... 



68^6 



+2^8 



9^6 



47-6 



440 



11 



2^57& 



4^23 



Miles. 



1854... 



68-0 



+1-7 



98-1 



47^0 



51-1 



5 



0^465 



474 



0^19 

 4^20 



Miles. 





lb. 



M'n. 



06^35 





84^41 



46-43 



37.08 



9-5 



2^809 



Miles. 



