ABSTRACT FOR THE MONTH OF MAY, 1892. 
Meteorological Observations, McGill College Observatory, Montreal, Canada. Height above sea level, 187 feet. C- H. McLEOD, Superintendent. 
THERMOMETER. 
* BAROMETER. 
+ Mean 
pres- 
sure of 
Tt Mean 
relative 
humid- 
Dew 
point. 
WIND. 
Sky CLoupeED; 
In 
TENTHS. 
§ Min. vapour 
SUNDAY. 
SUNDAY. 
SUNDAY 
Sunpay,... 
Pua) 
DRoGw an 
29-9137 
30.2903 
30.1233 
29.7733 
29,8388 
30.1723 
30.2010 
29.8400 
30.0152 
30.0580 
29.8995 
29.9058 
30.0735 
29.6403 
29.5888 
29.6815 
29.6503 
29.4887 
29.7825 
3950073 
30.1132 
18 Years means 
and including 
ity. 
ma us Usa) = 
Manono: 
General 
direction. 
Mean 
velocity] 
in miles| 
perhour| 
Ons 
Osh Hw mH 
mona 
HHH 
Saaones 
oe 0) © EE 
o0000n 
| Min. 
hes. 
DAY. 
Possible 
Sunshine. 
melted. 
1n¢! 
Per cent. of 
Rain and snow 
de! 
& 
Ee 
3 
a 
n 
Sunpay 
sees ++ +2 SUNDAY 
Oo NOntW yn 
-SUNDAY 
st tte eee) SUNDAY 
Seeeee ss SUNDAY 
Sums 
and including this 
} 18 Years means for 
150.9 
his month..... + ba zh f =] Fe | month, 
ANALYSIS OF WIND RECORD. SSS oe * Barometer readings reduced to sea-leveland | barometer was 29.435 on the 27th, giving a range 
rae = P E temperature of 32° Fahrenheit. | of 0.930 inches. Maximum relative humidity 
Direction. --. N. ND. E. SB s. S.W. Ww. N.W. | Calm. § Observed. was 96 on five days. Minimum relative humidity 
i 6 6: 822 6. 8 | 2 | was 20 on the J8th. 
Miles eeescnsssss [eee It S| | sca | cos oe | t Pressure of vapour in inches of mercary. Rain fell on 15 days 
Duration in hrs 125 127 50 2 76 47 113 152 2 Humidity relati i i F é 
pitas ae _—_—_|——|_—__|__ ——|— } Humidity relative, saturation being 100. Auroras were observed on 4 nights, the most 
Menn velocity....) 14.6 13.0 15.9 14-7 10.8 13.6 17.2 19.3 1 11 years only 
Greatest mileage in one hour was 46 on the 4th. 
Greatest velocity in gusts, 52 miles per hour, on 
the 4th. 
Resultunt mileuge, 3810, 
brilliant display being on the night of the 18th. 
| 
Resultant direction, N. 30° W. 
Total mileage, 11,366, 
Average yelocity, 15.3 m- p. hy 
The greatest heat was 81.2 on the 3lst; the 
greates! cold was 34.0 on the Ist and 6th, giving a 
range of temperature of 47.2 degrees. Warmest 
day wasthe3lst Coldest day wasthe 23rd. Highest 
barometer reading was 30-365 0n the 9th; lowest 
Lunar halos on 2 nights. 
Tog on the night of the 30th and morning of the 
Slst. 
Solar halo with parhelic arcs on the 10th. 
