Coldest night on ground wise eee sees vee 1°8 degs., 12th February 
Greatest excess of open air temperature over shade temperature, 59°! 
degs., 1st May. 
Greatest difference between lowest temperature in shade and on ground, 
17:0 degs., 17th March. 
Greatest rainfall on any one day, 1'270 in., 9th October. 
Latest early Summer frost, 3-0 degs., 14th May. 
Earliest Autumn frost, 1:2 degs., 12th October. 
Severe gales, 3rd September and 26th December. 
Snow fell on 9 days: 24th—27th January ; 7th—11th February. 
Thunderstorms in April, May, June, and December; one in each. 
Greatest number of consecutive days on which rain fell: 9, 29th April— 
7th May; 10, 4th—13th August ; 11, 12th—22nd October. 
Greatest number of consecutive days on which no rain fell: 8, 13th— 
20th January; 8, 30th January—6th February ; 9, 3rd—11th Dec. 
Sunniest day of the year, 14°50 hours, on 25th June, being 88 per cent. 
of the greatest possible amount. 
More bright sunshine in the afternoons, averaging nearly half-an-hour on 
each day of bright sunshine. 
Welsh Hills at 9 a.m.—These were only visible on 106 days, a little more 
than one-fourth of the year; 71 days clearly and 35 very clearly 
seen. 
EXPLANATIONS. 
Local Mean Time is used for the regular observations. 
The Barometer readings, taken at 9-0 a.m, and 9-0 p.m., are corrected 
and reduced to sea-level and 32°0° Far. 
The Approximate Mean Temperature is the mean of the maximum and 
minimum read at 9-0 a.m., and found by multiplying their difference by the 
Meteorological Office co-efficient, and adding the product to the minimum. 
Temperature in Sun read at 9-0 a.m. and placed to previous day. 
Ground Temperatures read twice daily at 9-0 a.m. and 9-0 p.m. The 
lowest reading for the 24 hours, prior to 9-0 a.m.,, is entered to the previous day. 
Underground Temperatures talsen daily at 9-o a.m. The air tempera- 
ture is given for purposes of comparison. 
The Relative Humidity is calculated by dividing the mean elastic force 
of Aqueous Vapour, at the temperature of the Dew Point (as determined by 
Glaisher’s Factors), by that corresponding to the temperature of the air 
(i.e. the Dry-bulb reading). 
The Rain is measured at 9-0 a.m., and the amount entered to the 
previous day. A fall of 0-006 inch and above constitutes a day of rain. 
‘When any snow falls, the day is counted as a day of snow. 
When the mean of the 9-0 a.m. and 9-0 p.m. observations of the amount 
of cloud is less than 2°0, it is called a day of clear sky; if the mean is above 
8-o an overcast day. 
The wind direction is taken by means of a Compass Nephoscope, from 
the drift of the lower clouds. 
When the Force of the Wind is 7 and above (on Beaufort’s Scale o—12), 
it is accounted a Gale. 
Ozone read at 9-0 a.m. (according to Dr. Moffat’s Scale o—12), and 
placed to previous day. 
Sunshine Record.—The photographic traces are fixed before being 
measured. 
Fog, &’c.—The fog, haze, &c., are made from the visibility of objects 
and lights at definite distances from Rutland Cottage. 
