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ABSTRACT FOR THE MONTH OF APRIL, 1889. 
Meteorological Observations, McGill College Observatory, Montreal, Canada, Height above sea level, 187 feet. C. H. McLEOD, Superintendent. 
Sky CLoupepy E 
THERMOMETER. BAROMETER. WIND. In Tents. [5 3 Al q a. 
— aaa a4 re pe oe {Mean | { Meau aa a 2 z 8 a3 =a 38 
pres-_ |relative] Dew M Ss a28) 8 |] S82] g8 
a vapour. [HE] Poa | General lrstocts| ¢ | 4 | Alga] s° | ba |ae| PAY 
Mean.| Max. | Min. |Range] *Mean. | §Max. §Min. | §Range. | vapour. ] ity. dinectionelintmniley g s/a]s g ey Sr 5 
perhour, a 
a aay 1] 31.87 | 360 26.6 29.9243 | 29-984 29-854 +130 1365 76.7 25.2 N.E. 13-7 75|10| o 79 sae I 
2| 31.28 | 34.8 27.6 29.7595 | 29-8or 29.696 +105 +1543, 87.7 28.0 N.E. 8.0 | 10.0] 10 | 10 or) oor} 2 
3| 33-55 | 38-0 28.6 29.7618 | 29.838 29.697 «141 +1653 86.0 29.8 7-9 6.3] 10] o 16 0.09] 3 
4| 35.62] 40.1 31-7 5 29.8928 29-960 29-789 +171 +1303 62.5 24.0 S.W. 13-8 65|10] o 18 4 
5| 32-78] 40.0 27.3) 12. 39.0993 | 30.167 30.031 +136 +0997 53-7 18.0 N.E. 12 2 1.0] 5/0 96 5 
6| 32.68] 41.0 23.8) 17. 30-3353 | 30-407 30.219 +188 -0978 53.0 17.5 N. 130 | 03] 1] o 96 ae 6 
SUNDAY. ....-- 7 6000 47.0 24-8| 22. 0000002 2006000 505000 0000 sooo 6060 9000 S.E 1.6 so004 tool} ao 96 7 s+80 .eeeeSUNDAY 
8} 4098] 48.9 31-7 17. 30+2753 | 30° 412 30.077 +335 .1275 50.2 23-7 E. 3-3 2.5| 10/ o 97 8 
g| 41.52 52.0 34-3 17- 29.8972 30.019 29.788 ~231 +1647 62.0 29.3 S.W. 16.3 3-8] 10] o 44 9 
10} 37-95 44.2 sh4/ 13 29-9345 29.983 29-999) “O74 +1378 60.3 25.3 S.W. 16.8 rok} || 6 ° 96 10 
bad 47.40 58.0 36.2 2.. 29-7713 29.898 29 626 +272 +1693 53-0 30.2 S.W. 26.0 5-3 10 o 7o It 
12} 41.97 | 49-: 32.4) 16. 29.6357 | 29.702 29 595 +107 +2020 74-5 | 34-2 N. 12.3 | 7.3| 10] o 12 12 
13] 33-65] 39.3 26.8] 12. 29.8302 | 29.965 29 741 +224 +1175 61.2 21.8 N-.W. 14.8 8.2] 10] o 25 ; «| 13 
SUNDAY........14 | «+02. | 47-1 31-8 | 15.3 o90cde seeeee | ceraes ves an coe N.W. 13.6 5000 |} 00 vA 0000 0000 vee 14 . eeee++ +1. SUNDAY 
15 | 40.50) 49.1 31.7 | 17-4] 30 4110] 30 459 30.340 +0950 39.0 | 16.2 N. 115 | oo| of of os 15 
16 | 47-19] 59.4 34-6 | 24.8] 30.3438 | 30 437 32-243 +1448 46.8 26.7 i. 6.1 o8| 2] 0 92 16 
17 51.93 64.2 36.5 27.7 30.1102 30-227 30.015 .1693 46 2 30.2 Ss. 129 @3]| BI] © 95 +. | 17 
18 53-53 | 66.1 38-3 27.8 30.0438 30-075 30.016 ~2262 56.2 37-5 he: N. 6.8 4.0] 10| 0 73 oc |) 3 
19 | 59-40] 73.6 41.3] 32-3] 29-9535 | 30-096 29 813 - 2802 5353 42.5 5.1. 147 3-5| 10] o 89 © 02] 19 
20} 62 58] 69.8 57-5 | 123] 29.9210] 29 969 29-863 -3160 565 453 S.W. 250 4.3] 10]| o 74 0.04 | 20 
SUNDAY........26 ponon |) (yc) 32.6] 35.3 0000 an 900 coda S.W. 23.2 boo 00 74 | 0.02 600 0.02 | 24 ...+-++0+eSUNDAY. 
22] 33.88] 40.3 28.3) 12.0 +342 +0935 48.3 16.3 =, Wo 240 4.8 | 10] o 48 oO se | 22 
23 | 38-02] 46.2 26.6] 19.6 +208 +1312 56-7 23.5, SW. 82 7-2} 10] 0 53 tas see | 23 
24] 51.68 | 63.0 36.5 | 26.5 +265 +2575 67.2 407 §.E. 16.4 | 9.0} 10] 4 46 | oor O.01 | 24 
25 53 53 | 57-0 51.9 5.1 ) +023 «3603 87.0 498 S. 14.3 10.0/ 10] 10 00} 0.34 ° 34 | 25 
26] 51.12] 55-5 45-5 | 10.0 29-816 .094 +3583 95-2 49-7 N-B. 8.6 10 0} 10/ 10 00} 0.51 0.54 | 26 
27 | 49-92] 61.0 42.7] 18.3 29.401 .312 +3323 g2.2 47-7 N.E. 20.5 g-2] 10] 5 39 | 0.10 ooo |) Qs) |] 24 
SuNDAY........28 62.2 L549 || &5G)) connec |} coo000 |} coanc 9000 00 200 000 S. BE. 57768 1 oon0 06 | oss 0.58 | 28 .....00-..+SUNDAY 
29 51.9 44.6 7-3 29 377 +193 +2998 88.2 45.0 S.W. 21.7 10.0} 10 | 10 00 | 0.43 © 43 | 29 
30 50.8 40.5) 10-3 29 588 .139 +2143 714-2 30.2 Ww. 27-4 8.8] 10 oo |Inapp 0.03 | 30 
-Means| 43.34 51-78 | 34.97 | 16.82] 29.9554 1916 65.0 | 31 32 JS 72° W. | 14.55 [5.48] . .. 53-0] 2.14 o.r | 2 15 |Sums 
fi oo oe eae ae ee lees ig a eae es Peele oer 1 aa eae | Saas ae | eans for and 
15 yrs. means for & 5 |z5 years means 
fea tat this mo,! 39.58 47.6 31-7 || 15.9] 29.9359! .....5 600000 +199 1693 67-1 Beod sono cac0 4 GG |] 60H} oo LIGA Bo 6.7 | 2.25 including this month 
ANALYSIS OF WIND RECORD. “Barometer readings reduced to sea-level and| Rain fell on 11 days. 
Sa en a ei i temperature of 32° Fahr. Snow fell on 2 days. 
Direction... y. |nz.| e | se] s. |sw.| w- | N. W.| Calm. § Observed. ph Rain or snow fell on 13 days. 
——, | — | __ __}__ t Pressure of vapour in inches of mercury. Auroras were observed on three nights. 
Miles. ...+-+++++.| 7353, | 1472 367_| 507 | 1413 | 2674 | 2134 | 559 t Humidity relative, saturation being 100. Solar halo on three days. 
Duration in hrs..| 96 113 52 48 103 130 114 49 15 ‘1 Hight years only. Lunar corona on two nights. 
ea, ees | ae —| — | ; —_—__|_—__. The fapeasicay amt waste lon the 19th; the great-| Fog on two days. 
ean velocity...| 14.1 13.0 7-1 10.6 13.7 20.6 18.7 11.4 est cold was 23.8 on the 6th, giving a range ot 
temperature of 49.8 degrees.” Warmest day was Thunderstorm on the 27th. 
——— ——_. ——-——— the 20th. Coldest day was the 2nd. Highest baro- 
z P meter reading was 30.499 on the 7th; lowest baro- 
Greatest mileage in one hour was 48 on the2Ist.| Resultant direction, § 72° W. mete Wee ae on the zal giving pataneeoh ae 
ity i i ; 79, inches. aximum relative humidity was on 
Pee aea velocity in gusts 66 miles per hour on| Total mileage, 10,47 he 2th. IM niniumbra ag veya anna aes oe 
Resultant mileage, 2,790. the 15th. 
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