144 J. HOPKINSON — EEPOKT ON THE 



rainfall in the four very wet months was about seven and a quarter 

 times that in the four very dry ones. The difference in each month 

 from the mean for the hali-century was — 



in. in. in. in. 



Jan —1-48 April —1-01 July —1-45 Oct -f 0-43 



Feb —1-27 Mav —1-81 Aug -1-0-43 Nov —1-30 



Mar +1-88 June —0-04 Sept -["^-OS Dec 4-1-81 



Thus the fall for the first six months was 3-73 ins. below the 

 mean, and for the last six months 4 '00 ins. above the mean ; and 

 while one month had more than four inches above the average, no 

 other month deviated as much as two inches from the average, and 

 only three months more than an inch and a half from it. 



The absolute maximum fall in any one day in each month, 

 and the stations recording them, were — 



in. ins. 



Jan. 24— Kensworth 0-40 July 26— Apsley Mills, 



Feb. 20— Moor Park, Eick- Hemel Hempstead 1-15 



mausworth 0-22 Aug. 31 — Sawbridgeworth 1"08 



Mar. 18— Broxbourne 0-97 Sept. 12— Odsey 1-76 



April 10— Great Gaddesden 0-48 Oct. 6— Gorhambury 0-97 



May 21— Kensworth 0-34 Nov. 7— Moor Park 0-59 



June 24— Fanhams Hall, Ware 1-33 Dec. 4— Pendley, Tring 0-92 



The wettest day in each month at 43 stations was — 



January 24tli at 37, 25th at 6. 



February 8th at 15, 12th at 1, 20th at 16, 29th at 10, 8th and 20th at 1, 



March 17th at 21, 18th at 3, 20th at 18, 22nd at 1. 



April 4th at 10, 10th at 24, 11th at 4, 12th at 2, 16th at 1, 4th and 10th at 1, 

 12th, 14th, and 16th at 1. 



May 18th at 2, 20th at 1, 21st at 40. 



June 7th at 2, 10th at 33, 24th at 8. 



July 7th at 3, 16th at 1, 23th at 2, 26th at 37. 



August 9th at 2, 10th at 5, 19th at 9, 25th at 8, 31st at 18, 10th and 

 31st at 1. 



September 1st at 2, 4th at 5, lOtb at 7, 12th at 10, 23rd at 1, 24th at 18. 



October 6th at 35, 12th at 1, 15th at 3, 19lh at 4. 



November 7th at 34, 14th at 8, 7th and 14th at 1. 



December 2nd at 2, 4th at 41. 



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



general over the county was therefore — 



Jan. 24th April 10th July 26th Oct. 6th 



Feb. 20th May 21st Aug. 31st Nov. 7th 



March 17th June 10th Sept. 24th Dec. 4th 



The number of wet days in the year (average of 40 gauges) was 

 168, being exactly the same as the mean for the 20 years 1870-89. 

 Of the total number there were 41 (or 24 %) in the winter 

 months, 39 (or 23 %) in the spring, 35 (or 21 °/o) in the summer, 

 and 63 (or 32 °/q) in the autumn. 



The average number of wet days in each month, and the 

 deviation fi'om the mean for the 20 years 1870-89, were as 

 follows — 



Jan. 10 — 5 April 11 —2 July 9 — 6 Oct. 20 +5 



Feb. 8 — 6 May 4 —9 Aug. 16+3 Nov. 10 —6 



March 24+11 June 10 —3 Sept. 23 +10 Dec. 23+7 



