208 J. HOPKINSON KEPOET ON THE 



The wettest day in each month at 35 stations was : — 



January 1st at 1 station : 4th at 1 : Tth at 3 ; 8th at 2 ; 10th at 2 ; 11th at 2 ; 

 14th at 1 ; 22ncl at 14 ; 26th at 1 ; 27th at 1 ; 30th at 4 ; 6th and 22nd equal 

 at 1 ; 7th and 22nd equal at 1 ; 1st, 8th, 10th, and 30th equal at 1. 



February 14th at 3 ; 15th at 6 ; 16th at 2 ; 20th at 21 ; 21st at 1 ; 28th at 1 ; 

 15th and 20th equal at 1. 



March 1st at 1 ; loth at 30 ; 26th at 3 ; 15th and 26th equal at 1. 



April 27th at all stations. 



May 25th at 31 ; 26th at 3 ; 2oth and 26th equal at 1. 



Jime 22nd at 2 ; 2:ird at 4 ; 28th at 29. 



July 5th at 2 ; 16th at 13 ; 19th at 19 : 16 and 19th equal at 1. 



August 18th at 6 ; 27th at 29. 



September 21st at 8 ; 29th at 26 ; 21st and 29th equal at 1. 



October 27th at 10 ; 30th at 25. 



November 15th at 33 ; 16th at 2. 



December 1st at all stations. 



The day in each month on which a heavy fall of rain was most 

 general over the county was therefore : — 



Jan. 22nd April 27th July 19th Oct 30th 



Feb. 20th May 25th Aug. 27th Nov. 15th 



March 15th June 2Sth Sept. 29th Dec. 1st 



The number of wet days in the year (average of 33 gauges) was 

 164, being 4 below the mean for the twenty years 1870-89. Of 

 the total number there were 43 (or 26 °/q) in the winter months, 

 32 (or 20 °/o) in the spring, 38 (or 23 °/o) ^^ the summer, and 51 

 (or 3 1 °/q) in the autumn. 



The number of wet days in each month, and the deviation from 

 the mean for the 20 years 1870-89, was as follows : — 



Jan. 14 —1 April 9 —4 July 10 —4 Oct. 22 +7 



Feb. 18 +4 May 12 —1 Aug. 14 +1 Nov. 16 = 



March 11 —2 June 14 +1 Sept. 13 = Dec. 11 —5 



Distnhdion of Rainfall throughout the County. — The next table 

 (Table IV, p. 209) gives the mean fall for each month and for the 

 year in each of the five river-districts represented, and in the two 

 main hydro graphical divisions of the county, the catchment-basins 

 of the Great Ouse and the Thames, and also the difference in the 

 year from the mean for the decade 1880-89. 



The mean rainfall in each of the minor river-basias or sub- 

 districts represented, was as follows : — 



ins. ins. 



Cam Rhee 24-53 . Mimram 24-02 



IvEL Hiz „ 23-38 ( Beane 25-20 



Thame Upper Thame 23-71 t ) Rib 26-65 



rBulbourne _ 25-83 ^^^ { Ash 25-60 



rntxTT? j Glide 25-26 f Upper Lea 23-02 



^"^''^ iVer 24-91 V Lower Lea 23-87 



[Lower Colne 26-29 



The total yearly fall ranged from 21-41 ins. at Datchworth to 

 28-43 ins. at Moor Park, Rickmansworth ; and the total monthly 

 fall from 64 in. at Datchworth in April to 4-82 ins. at Moor 

 Park in October. The greatest fall in any one day was 2-08 ins. at 

 Hamels Park, Buntingford, on the 16th of July. 



