I Rer.'a 



BULLETIN No. 2. Ar.c:«.'d ^MUBUARV, 1889. 



METEOROLOGICAL OBSERVATORY 



OK THK 



Hatch Experiment Station, 



MASSACHUSETTS AGRICULTURAL COLLEGE, 



Latitude, 42° 23' 48.5" N. Lougitude, 72° 31' 10" W. 



Height of instrumemts above ground, 51 ft. Above sea level, 260 ft. 



Pressure, In inches. Meau reduced to 3-2>^ F., 29.918; Monthly Range, 1.537. 



Air Tt-mperattirc. lu Degrees Fahrenheit. Mean, 23. 9>^; Highest, 47.0'^; Lowest, —2.^; 

 Monthly Range, 49.«; Highest Mean Daily, ica""; Lowest Mean Daily, 7.3'-"; Mean Maxi- 

 mum, JS.T-'; .Mean Minimum, 17. 1'-'; Mean Daily Range, 15.5'^; Greatest Daily Range, 30.0". 



Uumiility. Meau Dew Point, 21.2; Mean Relative Humidity, 90. 



Wind. Prevailing Direction, North; Total Movement, 4828 miles; Greatest Daily Move- 

 ment, .'5702-23 miles; Least Daily Movement, 41.4 miles; Mean Daily Movement, 172.4 

 miles, Mean Hourly Velocity, 7.2 miles; Maximum Pressure per Square Foot, 24 lbs. 



Precipitntion. In inches. Total Precipitation, 1.22; Total Depth of Snow, 7 1-4; Depth 

 ol' unmclted Snow on Ground at end of month, 3. 



Bright Sunshine. Number of Hours Reiiorded, 1S3; Maximum Temperature in Fahr- 

 enheit Degrees, 117"^. 



Weather. Meau Cloudiness, on a Scale of 10, 4; Number of Clear Days, 6; Number of 

 Cloudy Days, 4. 



HOURLY READINGS FROM THE 



DRAPER SELF-RECORDING THERMOMETER. 



IN THE SHADE. 



Feb. 



3 

 4 

 5 

 6 

 7 

 -8 

 9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 

 23 

 24 

 25 

 26 

 27 

 28 

 29 

 30 

 31 



12 3 4 5 6 



36 36 .35 .34 34 33 

 18' IS: 18 18 20 1» 

 31313131 3131 

 111 9 3! 3 0-2 

 24|24 24 24 24 24' 

 35135 34 24 21 19 

 7} 7 7 6 fi S 



lejie'iG i(j hi 17 



27l2(;'20 2.i24 24 

 29129 2>s 27 27 27 

 18117 l.i 14 13 12' 

 27|27 27 27 27 27 

 17|l(i 1.-) 14 13 11 

 12i]3 14 1.5 1.". 17 

 21;21 2U 19 19 20 

 22,20 19 18 17 15 

 35 35i35 3o:;5;-i:) 

 41i40i39 38 37::i7 

 38 38 37 3.-) 3.) 34 



23 23 22 22 21 21 

 19 18 17 17 15,15 

 28 28 2S 29 29 29 



24 22 18 15 111 8 

 1 1 0-1 



15 14 14 12 12 12 

 12 10 9 S ,■< 7 

 24 23 23 23 2:; 23 

 31130 29 28 28 28 



7 8 9il0|ll 12 1 



29 28 2S 27 27 



19 20 24 25 2<; 

 31 31 32 :i4 30 



-2 2 7 8 10 

 25 27 29 ;io 32 

 17 10 15 l.T 14 

 8 13 IG 10 15 

 17 IS 18 20 23 

 24 24 24 20 27 



20 2() 20 27 27 

 II II 14 K; 211 

 27 27 27 30 30 



S S 8 9:11 



Is IS 20 21 '22 

 20 20 24 2'.t -29 

 13 19,23 25 33 

 35 35 30 40 42 



26 20 20 ; 

 29 3r33: 

 39 40 41 : 



11 17 20: 

 33 33 34 : 



12 11 II 

 17 10 IS 



29 3o:il : 

 25 27 29 ■ 



30 3(1 ;;o ■ 



14 11 II 



23 212:. 

 29 30 .;2 



2 3 4 5 6 17 8 9 10 11 12 Mean 



39 . 



44 44 47 



39 39 39 



17 47 



I23'20i20'19 19 19 19 

 35 34 33 33 

 22 20 17 15 



30 24 23 

 20 27124 

 .34i3535 



9| 9 8 

 18!17'17 



31 31 30 

 30 30 30 

 24 22 20 

 13 12 II 

 21 24 J 1 



43 40 :;'.i 

 ■15 14 44 



24124 

 35134 



81 8 

 17!18 



24 24 

 35! 35 



i8ir 



^1 31 30 30 31 30 : 



24 





15 10 20 23 23 

 29 30 32 33 37 



5 3 3 5 

 -2 o' 3 3! 7 

 12 12 13 14 10 



5 10 12 15 

 23 23 24 20 30 

 28 28129130 32 



3,9 40 39 

 6 7 

 10 11 13 

 IS 20 21 

 17 22 2.'. 

 31 32 33 

 33 35 35 



31 30 29 

 39 ?u m 

 5 4 3 

 17 17 10 

 23 22 20 

 27 20 24 

 34 34 33 

 37 36 35 



32:31130 29 

 30 •27120 24 

 30 29 29 29 

 19, 19, 19, It 

 llillllO 10 



23 2322,22 

 2S -30125 24 

 :'.7 37,37 37 

 43 42141 4141 

 37 37i37 37 38! 



24 24 24 24 24 

 21 20 20 20 19 

 29 2S 2s 2S 2S 

 35 34 32 28 201 



21 2' 2 2 2 

 15!l5il5 15 15 

 is!l7il0 15 13 

 24 24 24 25 25 

 2 32 32 31 

 U 34 33 31 129 

 I . . 



26.2 

 27.6 

 29.1 

 14.2 

 30.5 

 15.1 

 14.0 

 22.7 

 28.7 

 28.0 

 22.3 

 25.2 

 12.0 

 20.4 

 25.8 

 29.9 

 40.3 

 38.0 

 29.3 

 22.7 

 23 /.I 

 ;i3.2 

 7.3 

 8.4 

 10.4 

 17.4 

 28.6 

 31.9 



