Monthly Meteorological Register, at the Pro-rlnclal Maguetlcal Observatory, Toronto, Canada Wcsl.— February, 1855. 



Latitude, 43 deg. 39.4 min. North. Longitude, 79 deg. 21. min. West. Elevation above Lake Ontario, 108/ce<. 



= 



Barom. at temp, of 32 deg. 



Temp, of the Air. 



Mean 



Tension of Vapour. 



Humid'y of Air. 



Wind. 





















Temp. 

 + or — 









Rain 















































Snow 









10 





6 



2 



10 





of the 



6 



2 



10 





6 



2 



10 











Mean 



in 



in 



p 



6 a.m. 



2 P.M. 



P.M. 



Mean. 



A.M. 

 o 



15^4 



P.M. 



P.M. 



m'n. 



ATcrage 



A.M. 



o^oso 



P.M. 



P.M. 



m'n 



A.M 



■87 



P.M 



■78 



P.M 



■74 



m'n 

 ■78 



6 a.m. 



2 P.M. 



10 P.M. 



Vei'y 

 7^47 



Inch 



Inch. 



1 



29-596 



29^458 



29^510 



29^524 



25°4 



o 



—1^4 



12°3 



o 

 — 11^6 



0-108 



0.034 



0^070 



Calm 



AV 



Calm 



0^5 







•335 



•263 



•195 



■260 



8-6 



21^7 



20^5 



17^1 



— 6^8 



■058 





088 



■098 



■080 



83 



74 



86 



80 



WS W 



WS W 



AV 



11^40 





0^4 



S 



•264 



•344 



•391 



■850 



4^8 



14^8 



7^5 



8^1 



— 15^6 



■050 





066 



■044 



■052 



85 



78 



66 



V5 



W 



W 



WS W 



13^97 





0^5 



4 



■513 



•425 







-1V0 



^■l 











■021 





038 



. 







75 



75 



— 



— 



NbE 



Calm 



Calm 



4^13 





0^3 



iS 



•356 



■316 



•686 



■457 



—9^0 



6^6 



-15^1 



-7^6 



— 81^2 



■019 





048 



■010 



■025 



61 



75 



44 



66 



NN W 



WNW 



N 



8^27 





0-1 



fi 



•763 



■746 



•763 



■758 



-24^?, 



-10^4 



-10^6 



-14-4 



— 37^9 



■007 





020 



■027 



■023 



45 



65 



90 



68 



NNE 



NEbN 



NEbN 



9^19 



... 



2-5 



7 



•686 



•527 



•446 



■546 



-9^8 



2^5 



6^1 



-0^3 



—23^7 



■023 





042 



■058 



■048 



77 



80 



92 



8b 



NEbN 



NE 



N E 



13.21 





2^5 



8 



•481 



•455 



•496 



■484 



5.0 



15^6 



13^8 



11^1 



—12^3 



■054 





066 



■081 



■068 



90 



71 



93 



80 



NbE 



NbE 



NbW 



6^92 



... 



0^1 



9 



•496 



•560 



•692 



■591 



1 1 ■S 



18^0 



—2^5 



9-3 



— 14^0 



■069 





088 



■034 



■064 



89 



85 



84 



84 



Nb W 



WNW 



NN W 



8^52 



... 



Inap. 



10 



•730 



•716 



•634 



•691 



10^7 



28^8 



19^0 



17^7 



— 5^6 



■064 





088 



■092 



■082 



83 



69 



85 



80 



Calm 



SWbW 



SAVbS 



6^06 



... 



4^0 



11 



•467 



•554 







19^4 



28^7 















■075 





099 







. — 



68 



62 



. — 



— 



S 



Calm 



Calm 



2^07 







1' 



•819 



•764 



•696 



•759 



14^4 



28^7 



28^7 



14^2 



+ 0^9 



■076 





146 



•145 



■118 



86 



92 



92 



87 



NbE 



ESE 



EbS 



iM4 



... 



5-6 



13 



•624 



•592 



•505 



•571 



31 ^2 



35^0 



84^1 



88^5 



+10^3 



■160 





168 



•195 



■175 



92 



83 



99 



92 



ESE 



EbN 



EbN 



12^36 



l-70£ 



... 



14 



•433 



•451 



•545 



•480 



84^8 



36^2 



83-9 



84^8 



+11^6 



■199 





207 



■179 



■198 



99 



98 



93 



96 



ENE 



NNE 



Calm 



2-44 



0-06t 



... 



l.'S 



•526 



•469 



■441 



■473 



81 ■? 



37^3 



31^6 



.38^1 



+ 9^8 



■164 





193 



■162 



■171 



94 



87 



92 



91 



SWbS 



N W 



N W 



6^65 





4^0 



Ifi 



•859 



■402 



■488 



■423 



28^4 



32^7 



29^1 



28'6 



+ 5^2 



■142 





164 



■149 



■143 



90 



89 



94 



90 



NWbW 



WS W 



AV 



4^86 



... 



1^5 



17 



•526 



•553 



■611 



■567 



28^7 



32^1 



26-6 



26^8 



+ 8^5 



■113 





157 



■130 



■130 



86 



87 



89 



87 



ff S W 



W 



WNW 



5^51 



... 



0^2 



18 



•622 



•612 







25^2 



34 1 















■123 





162 



— 



— 



89 



82 



— 



— 



W 



N W 



NWbN 



11^50 



... 



Inap. 



19 



•694 



•685 



■754 



■717 



22^6 



28-4 



24^1 



23^9 



+ 0^4 



■107 





139 



■115 



■114 



85 



89 



86 



86 



NWbN 



NN W 



NN AV 



13^95 





0^2 



''O 



•830 



•870 



•965 



•910 



19-7 



31-2 



19^9 



23 ■! 



— 0-5 



■094 





129 



■081 



■100 



85 



75 



73 



78 



NN W 



NWbN 



N W 



8^83 







9,1 



•991 



•962 



•859 



•936 



14^8 



33^5 



15^4 



20^8 



— 3^0 



■078 





130 



•064 



■090 



86 



69 



68 



75 



WN W 



SWbS 



SAVbS 



1^95 





... 



99 



•696 



•650 



•776 



•712 



26^2 



33^3 



24^4 



26-5 



+ 2-6 



■132 





144 



■120 



■126 



91 



75 



89 



86 



S W 



NWbW 



Nb AV 



11^76 



... 



... 



?3 



•834 



•831 



•858 



■843 



5^0 



11^6 



0^7 



4^6 



—19-3 



■043 





053 



■032 



■041 



73 



67 



65 



69 



N 



NN W 



NN W 



7^77 



... 





94 



■858 



•774 



■776 



■797 



—6^4 



13^6 



—1^4 



2^3 



—21-9 



■027 





067 



•087 



■042 



76 



77 



84 



75 



WNW 



WbN 



WbN 



6^90 



... 



... 



9.5 



■676 



■522 









—8^2 



13^] 



— 



— 



— . 



■024 





045 



— 



— 



71 



53 



— 



— 



WbS 



W 



W 



12^66 







96 



■443 



•382 



■463 



■435 



6^1 



16^8 



13^3 



11^7 



— 12^8 



■043 





060 



•069 



■058 



70 



63 



81 



78 



AVbN 



WbN 



AV 



12^75 



... 



Inap. 



97 



■536 



•679 



■829 



•705 



1V5 



17^2 



6-1 



11^3 



— 18^4 



■068 





069 



•047 



•059 



86 



69 



76 



75 



NN W 



NWbW 



NN W 



8^87 







28 



•928 



30^002 



80^076 



30^011 



1-5 



20^8 



10^1 



11^4 



— 13^5 



•040 



■050 



•059 



•051 



80 



44 



80 



67 



WbN 



NNE 



WNW 



2^65 

 Miles 



... 

































Miles. 



Miles. 



Miles. 







M 



29^617 



29^602 



29^644 



29^625 



11^6 



21^9 



13^9 



15^4 



— 8^3 



O^OSO 



0^104 



0^086 



0^088 



■83 



■76 



■82 



■80 



6^49 



10^14 



8^56 



8^17 



1'770 21^8 



Highest Barometer...... 30^088, at 12 p.m. on 28th \ Monthly range : 



Lowest Barometer 29^172, at 12 p.m. on 2nd j 0^916 inches. 



Highest registered temperature +39°^0, at p.m., 15th \ Monthly range : 

 Lowestregistered temperature — 25°-4, ata.m. on 6th / 64°^4. 



Mean Maximum Thermometer 28°^19 "I Mean daily^range: 



Mean Minimum Thermometer 4°^81 j 18°^38. 



Greatest daily range 34°^2, from p.m. of 5th to a.m. of 6th. 



Least daily range 5°^9, from p.m. of 13th, to a.m. of 14th. 



AVarmest day 14th. Mean temperature -l-34°-83 I Difference, 



Coldest day 6th. Mean temperature — 14°-38 j" 49°-21. 



Greatest intensity of Solar E,adiation, +60°-5 onp.m.of 15th 1 Eange, 

 Lowest point of Terrestrial Radiation, — 81°-0 on a. m. of 6th / 91°-5. 

 Am-ora observed on 4 night: viz. 9th, 11th, 20th, and 21st. 

 Possible to see Aurora on 12 nights. Impossible on 16 nights. 

 Raining on 2 days. Raining 20^5 hours: depth, 1-770 inches. 

 Snowing on 14 days. Snowing 98-0 hours ; depth 21-8 inches. 

 Mean of Cloudiness, 0-71. 

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



directions. 

 North— 2713-64 AVest— 2786-04 South.— 463-75 East— 937-49. 

 Mean direction of the Wind, N 87° W. 

 Mean velocity of the AVind, 8^17 miles per hour. 



Maximum velocity, 25-0 miles per hour, from 3.30 to 4.30 p.m. on 1st. 

 Most windy day, the 3d; mean velocity, 13^97 miles per hour. 

 Least windy day, the 21st; mean velocity, 1^95 " " 



Most windy hour, 9 p.m. Mean velocity, 10^45 miles per hour. 

 Least windy hour, 4 a.m. Mean velocity, 5^92 miles per hour. 

 Mean diurnal variation, 4^53 miles. 



The mean temperature of this month has been 7°^7 below the ave- 

 rage, being the coldest month during the 16 years, with the single ex- 

 ception of February, 1843. The minimum temperature, — 25°^4, is the 

 lowest on record ; the nearest approach to it being — 18°^4, which oc- 

 curred on January 16th, 1840. ' 



The first ten days of the month were remarkable for a continuance 

 of extreme cold, the fifth and sixth days (— 7°^6 and — 14°4) being the 

 coldest yet recorded, the next coldest day of the whole series being Jan 

 10th, 1848, the mean temperature of which was — 5°^3. The range of 



temperature on the whole month has been very great (64°^4), and has 

 only once been surpassed, namely, in April, 1842, in which mouth the 

 extreme range (69°7) was caused by an unusually high temperature 

 for the season (89°^8), supposed to be occasioned by a fire in the west- 

 ern woods. The barometer has been remarkably steady during the 

 mouth, and high winds have been prevalent, though without attaining 

 extreme violence. The velocity of the wind for the whole month is 

 not only the greatest for any February yet recorded, but absolutely the 

 highest for the eight years, with the single exception of December, 1854. 

 23d, at 7 a.m. — Segment of halo round the sun, and very bright 

 Parhelion on the south side of the halo. 







Comparative Table for February. 









Temperatur 



e. 



Kaiii. 



Snow. 



Wean 





















Mean. 



Dlt. 

 from 

 Av'ge 



Min. 

 ots'Td 



Max. 

 obs'vd 



Range 



D's. 



Inch. 



D's. 



Inch. 



M 



Velocity. 





1840 



28^0 



+4^9 



— 8^8 



49^1 



57^4 



8 



1^475 



6 









1841 



22-4 



—0^7 



— 0^8 



43^4 



43^7 



1 



0^000 



9 





0^61 



lb. 



1842 



26^9 



-|-3^8 



-f- 2^5 



48^7 



46^2 



8 



3^625 



9 





1^03 



ft). 



1843 



14^5 



-8^6 



—10^2 



37.5 



47-7 



1 



0^475 



21 



14^4 



1^05 



lb. 



1844 



26^0 



-|-2^9 



— 0^4 



47^1 



47-5 



4 



0^480 



7 



10^0 



0^43 



ft). 



1845 



26^0 



-f2^9 



— 3^9 



46^6 



50^5 



5 



Impf 



9 



19^0 



0^99 



ft. 



1846 



20^4 



2^7 



— 16^2 



41^4 



57^6 







0^000 



13 



46^1 



©■65 



ft). 



1847 



21^5 



— 1^6 



— 1^0 



42^2 



48^2 



o 



0^550 



13 



27^3 



0^69 



ft). 



1848 



26^6 



+8^5 



— 0^6 



46^9 



47^5 



4 



0^775 



8 



10^8 



5^69 



Miles. 



1849 



19^5 



-3^6 



— 9^2 



41^1 



50^8 



2 



0.240 



13 



19-2 



6^58 



Miles. 



1850 



26^0 



+2-9 



+ 1-3 



49^2 



47^9 



7 



1^235 



9 



23-1 



7^61 



Miles. 



1851 



27^6 



+4^5 



+ 1-3 



50^2 



48-9 



7 



2^600 



4 



2^4 



6^94 



Miles. 



1852 



28^4 



+0-3 



- 3^2 



41-2 



44^4 3 



©■650 



11 



13^0 



6^42 



Miles. 



1853 



24^1 



+1-0 



— 0^6 



43^4 



44^0 4 



1^030 



15 



12-6 



7^29 



Miles. 



1854 



21^1 



—2-0 



— 5^7 



42^7 



48^4 5 



1^460 



15 



18^0 



6^91 



Miles. 



1855 



15 ^4 



— 7^7 



— 25^0 



37^3 



62 ■& 2 



1^770 



14 



21^8 



8^17 



Miles. 





0^78 

 6^95 



R)s. 



M'n. I23.09 





—4^97 



44^25 



49^22 8^9 



l^OSS 



11.0 



18^8 



Miles. 



