RAINFALL IN HEETFORDSniEE IN 1878. 



227 



on which O'Ol inch of rain, or more, fell, and also the greatest 

 amount of rain which fell on any one day in each month. The 

 mean number of rainy days in each month is as follows : — 



Jan. ... 

 Feb. ... 

 March 



150 



13-6 



9-9 



April.. 

 May .. 

 June .. 



13-9 

 22-5 

 13-9 



July . 



Aug.. 

 Sept. 



6-1 

 200 

 107 



giving a mean for the year of 170-3 days, being about three days 

 less than in 1876, and 23 days less than in 1877.* The least 

 number of rainy days were at St. Albans (144) and Tring (145); 

 the greatest, at Hitchin (194), Ilarpeudeu (195), and Rickmans- 

 worth (198). The numbers nearest the mean were at Hemel 

 Hempstead (171) and Odsey (172). 



The station at which there was the greatest fall of rain in 24 

 hours in each month is now given, with the day of the month and 

 the amount of the fall. 



ms. 



Jan. 28. — Kensworth -54 



Feb. 13.— „ -60 



Mar. 28.— Wansford House -56 



Apl. 10.— East Baruet 2-56 



May 7. — Aspenden 1-20 



June30.— Bayfordbury ; 3-68 



ins, 



July 24.— Nash Mills 1 14 



Aug. 23. — Kensworth 1-52 



Sept.lS.— East Barnet -47 



Oct. 21.— Eotharasted MO 



Nov. 15. — Aspenden 1-19 



Dec. 27.— Brocket Hall .'.. -92 



The days on which the greatest fall of rain is recorded in each 

 month at these 21 stations are next given, with the number of 

 stations at which this maximum monthly fall occurred. The clays 

 on which the greatest rainfall in the month occurred at any one 

 station, as shown above, are indicated by italics. 



January — 5th, the wettest day at 2 stations ; 27th at 15 ; 28^/i at 4. 



Februaiy— 13i!/i at 19 ; 14th at 2. 



March— 21st at 1 ; 2%th at 6; 29th at 6 ; 30th at 1 ; 31st at 7. 



April— 10</t at 16; 11th at 1 ; 20th at 4. 



May— 1st at 1 ; 1th at 18 ; 12th at 1 ; 17th at 1. 



June— 3rd at 3 ; 11th at 1 ; 12th at 6 ; 13th at 1 ; 17th at 1 ; 30</4 at 9. 



July— 5th at 1 ; Uth at 13 ; 26th at 3 ; 27th at 4. 



August— 4th at 2 ; 5th at 6 ; 10th at 1 ; 13th at 4; 2Zrcl at 3 ; 29th at 5. 



September— 8th at 1 ; loth at 1 ; 17th at 12 ; \?,th at 4; 22nd at 2. 



October— 9th at 4 ; 18th at 1 ; 2lst at 8 ; 24th at 5 ; 25th at 1 ; 30th at 2. 



November— 10th at 6; 14th at 2 ; \5that&; 26th at 1 ; 27th at 5; 30th at 1. 



December— 25th at 3 ; 26th at 7 ; 11 th at 10 ; 31st at 1. 



The following falls of an inch or more are recorded on the days 

 of maximum monthly fall. 



April 10— "Wansford House, Watford, 170; Oaklands, Watford, 1-45 

 Gorhambury, St. Albans, 1 '80 ; Rothamsted, 1 74 ; Kensworth, 1 75 

 Nash Mills, 1-57; Berkhamp.stead, 1-20; Tring, 1-23; East Barnet, 2-56 

 Bayfordbury. 1-43; Brocket Hall, Hatfield, 2-11; Welw)Ti Rectory, 1-48 

 Datchworth", 1 "Oo. 



May 7— Aspenden, 1-20 ; Much Hadham, 1*04 ; Hitchin, 1 -05 ; Odsey, 1-02. 



* In the Report for 1877 (' Transactions,' Vol. II, p. 98), the mean number of 

 rainy days in the year is stated to have been lOV more than in 1876. This 

 is a misprint for 20^, and escaped my notice until now. 



