15 
Greatest excess of open air temperature over shade temperature, 58:0 degs., 
20th June. 
Greatest difference between lowest temperature in shade and on ground, 
13°5 degs., 19th July. 
Greatest rainfall on any one day (wet Bank Holiday), 2:225 in., 6th August. 
Latest Spring frost, 2°5 degs., ist May. 
Earliest Autumn frost, 2°8 degs., 22nd October. 
Severe gales, 13th April and 2oth, 21st, and 28th December. 
Very severe thunderstorms on 12th June, 28th and 2gth July, and 
5th and 6th August. 
Greatest number of consecutive days on which rain fell 11—13th to 
23rd February. 
Greatest number of consecutive days on which no rain fell 13—14th to 
28th July. 
Sunniest day of the year, 12 hours, 15th August, being 87 per cent. of 
the total possible. 
More bright sunshine in the afternoons, averaging half-an-hour on each 
day of bright sunshine. 
Welsh Hills at 9 a.m.—These were only visible on 129 days, only a little 
more than one-third of the year; 18 days clearly and 6 very 
clearly seen. 
EXPLANATIONS. 
The Barometer readings, taken at 9-0 a.m. and g-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 taken daily at 9-0 am. ‘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 (2.2. 
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 g-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 
8.0 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. 
Local Mean Time is used for the regular observations. 
