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VII. 

 THE WEATHER OF THE YEAR 1905 IN HERTFORDSHIRE. 



By John Hopkinson, F.L.S., F.G.S., F. E. Met. Soc, 

 Assoc. Inst. C. E. 



Rend at Watford, 2nd April, 1906. 

 (PLATE I.) 



Reports on the Rainfall in Hertfordshire for the last twenty- 

 nine years have been published in our ' Transactions,' and some 

 of the results of other meteorological observations in the coimty 

 for nearly as long a tune have been given. The latter were at 

 first for one station only, Watford, and some years later for 

 St. Albans, but, commencing with the year 1887, results for four 

 or five stations have been given, for ten years under the title 

 " Chmatological Observations " and for eight years under that of 

 " Meteorological Observations," other than merely climatological 

 observations having for this period been included. 



In the present paper the former " Reports on the Rainfall " 

 and " Meteorological Observations " are combined under a new 

 title, in order to avoid a certain amount of repetition and so 

 economize space, for it is obvious that while a separate report 

 has been given on the rainfall, that element of the weather 

 could not be excluded from the report on general meteorological 

 observations. For the same reason the discussion will not be so 

 full as it has hitherto been, and with this change of treatment 

 it has been thought desirable to adopt a more popular title. 



In the table of monthly rainfall accompanying this report, from 

 all the stations represented but two (Royston and Bulbourne) 

 the daily return of the rainfall has been received. They niunber 

 51, being one more than for the previous year. The exclusion of 

 all from which only monthly returns have been received, except 

 the above, retained because in each of their districts there is 

 only one other station represented, has reduced the total number 

 of stations from 54 for the previous year to 53. 



There are but few changes in the rainfall stations. The 

 additions are Croxley G-reen in the Chess river-district, Stanstead 

 Abbotts in the Upper Lea, and Hatfield St. Mary's in the Lower 

 Lea. The losses are Wigginton and Cowroast, from which only 

 monthly returns have been received, in the Bulbourne river- 

 district ; Grreat Graddesden, in the Gade, from the removal of the 

 observer ; and Hadley, in the Lower Lea, from the same cause. 

 Siunmerhill, Barnet, being found to be in the Brent district, has 

 been transferred to it from the Lower Lea. 



The stations for which other meteorological observations are 

 given are the same as for several years past. In all cases the 

 hour of observation is 9 a.m., and all the observations are entered 

 to the same day, except the rainfall and maximvun temperature, 

 which are entered to the previous day. Shade temperatures only 



VOL. XIII. — PART I. 3 



