1915.] BAILIWICK RAINFALL. 229 



falls, not to continuously unsettled weather by any means, and 

 what is noteworthy is that in every case one or both of the 

 smaller islands had decidedly more rain than Guernsey (Les 

 Blanches) on these wet days as shewn below : — 



-pv . Les Blchs., Guernsey. Sark. Alderney. 



in. in. in. 



September 1 0*46 0*69 0*37 



„ 23 ... 0-38 0-79 079 



24 98 Ml 1-29 



28 0*31 0-16 0-75 



Month's total 3-05 3*66 3*88 



Of two of these rainfalls at Alderney the Evening Press 

 of the 27 th said : 



" Over three-quarters of an inch of rain fell on Thursday- 

 afternoon [September 23] causing much inconvenience to picnick- 

 ers and fishing parties. On Friday [Sept. 24] a deluge fell about 

 noon, the Huret rain gauge recording over li inches of rainfall." 



In my own notes at Les Blanches under date of Septem- 

 ber 24th the following observation is recorded: "At 11.30 

 a.m. rain set in and fell heavily until 2.30, so heavily in fact 

 that no less than 0*92 in. came down in the three hours." This 

 amount in itself represents more than a week and a half's nor- 

 mal September rainfall. For nearly three weeks, however, pre- 

 vious to this, the weather had been very dry. From the 3rd 

 to the 22nd only one rain day was recorded at Les Blanches 

 and this interval gave us in addition some delightfully sunny 

 days and the warmest week of the year. For six consecutive 

 days (6th-llth) sunshine was unbroken from morning to night 

 and some other days a little later were nearly as good. 



In temperature September began and ended with a very 

 cold week, but from the 9th to the 23rd what can be described 

 as a heat wave of moderate intensity prevailed, and it included 

 the warm week mentioned above. This was September 12th 

 to 18th (Sunday to Saturday) the mean temperature of which, 

 62*7 deg., was 4'8 deg. above the normal. Some of the cold 

 days at the opening and finish of the month were most 

 unusually cold for the time of year — so unusual indeed as to 

 be worth putting on record, for the 29th and 30th are the two 

 coldest September days at Les Blanches of the twenty-two 



years, 1894-1915. 













Date. 



Max. 



Min. 



Mean. 



Normal. 



Diff'ce. 



deg. 



deg. 



deg. 



deg. 



deg. 



September 2 



. 59-9 ... 



... 49-1 ... 



... 52*0 .., 



.... 59-7 



— 7-7 



3 



. 58-2 ... 



... 45-6 ... 



... 52-0 ... 



... 59-3 



— 7-3 



„ 29 



. 54*9 ... 



...46-7 ... 



... 49-2 .. 



.... 57-3 



— 8-1 



„ 30 



. 55-2 .,, 



... 44*3 ... 



... 48*9 .., 



.... 57-0 



— 8-7 



