48 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



difference from the average of the mean temperature and rainfall for 

 each month, and the coldness of the summer months, and warmth of 

 the first five months and especially of the last month of the year is 

 clearly brought out. The second (fig. 19) shows the close agreement 

 between the air and earth temperatures due to the very moderate 

 amount of sunshine ; and the third (fig. 20) shows the striking pre- 

 dominance of winds from the south-west quadrant over all the others. 



60' 



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Fig. 19. — Mean Temperature of the Air and of the Soil at the Depth of 

 One Foot and of Four Feet below the Surface for Each Month. 



The average daily range of temperature is shown graphically in the 

 fourth diagram (fig. 21). 



The observations for the several months are as follows : 



January. — During the opening days of the year the weather over 

 the United Kingdom was controlled by winds blowing from between 

 south and west; it was therefore mild and open, the temperature 

 rising occasionally to above 50 degrees in all parts of the country 

 and in some to upwards of 55 degrees. Later on, short snaps of cold 

 were experienced, but nevertheless it is fair to say, speaking generally, 

 that throughout the first three weeks the temperature all over the 

 Kingdom was higher than the average for the season. A change then 

 took place and during the last week of January some very low readings 

 of the thermometer were recorded, more than 20 degrees of frost 



