THE SUNSHINE OF GUERNSEY FOR THE 

 YEAR 1918. 



BY A. COLLENETTE, F.C.S. 



This total sunshine for the year 1918 has exceeded 2,0(J0 

 hours. During the 25 years, which covers the period of 

 observations of this element of weather, this has occurred only 

 six times before. 



The total for the year is 2,023 hours, which exceeds the 

 average, 1898, by 125 hours. Seven months of the 12 gave 

 excess and five deficits. Only one month, January, made a 

 new record. The previous record for this month was 82 

 hours ; this year totalled 84, which figure, therefore, is the 

 highest reached in this month in the 25 years. 



The month which had the greatest departure from its 

 average was June, the difference being bQ hours ; but this, the 

 result of a total of 300 hours, was beaten by the June of 1906, 

 which with 314 hours holds the record. June was also the 

 sunniest month of the year with 300 hours, the next being July 

 with 297 hours. These two months contributed nearly a third 

 of the year's total, together having yielded 29*6 %. 



The first three months taken together were 48 hours in 

 excess of their combined averages. 



April fell off and yielded 173 instead of 200 hours, a loss 

 of 27 hours. The next four months were all sunny and together 

 yielded 118 hours of the total excess of the year. October and 

 November exactly balanced each other, having differences of 

 minus and plus 25 hours consecutively. 



Notwithstanding the excess of sunshine during the summer, 

 there was no new record in the length of the sunniest day. 

 Former Junes and Julys having had sunny days with 15*6 

 and 15 hours respectively, whereas this year the sunniest days 

 of these months had a duration of 15*3 and 14*7. 



The month of June this year had a daily mean of 10 

 hours and that of the sunniest June was 10*5. 



