RAINFALL IN HERTFORDSHIRE IN 1904. 
223 
The rainfall reached at least one inch in 24 hours ending 
9 a.m. on three occasions during the year: July 25 and 26, and 
August 31 ; and exceeded two and a half inches on July 25. At 
the 50 stations for which we have the daily returns there are in 
the aggregate 70 records of at least an inch, 7 of which are of at 
least two inches, and two of these exceed two and a half inches. 
The heaviest falls were in the Hiz district. 
The total yearly fall ranged from 18*37 inches at Odsey to 
28*79 inches at Pendley Manor, Tring ; and the total monthly fall 
from 0*58 inch at Hertford Sewage Works, in April, to 4*19 inches 
at Pendley Manor, in February. The greatest fall in any one day 
was 2*71 inches at The Chilterns, Hitchin, on July 25. 
Distribution of the Rainfall in each Month. —The nomenclature 
in the following account of the monthly rainfall is the same as in 
previous reports, falls of at least % inch being styled considerable , 
f very considerable , 1 inch great , 1£ very great , 1^ heavy , If very 
heavy , and 2 inches excessive. Only the fifty returns of the daily 
rainfall are thus analysed, hut the wettest days in each month are 
given for all stations. 
January. —A rather wet month, with rain on many days, and 
with an almost total absence of snow. On the 27th the rainfall 
was considerable at 6 stations, and on the 30th it was considerable 
at 45 and very considerable at one station (Summerhill, Barnet). 
The 30th was the wettest day at all stations. 
February. —Very wet, with rain on many days, and with a little 
snow on a few days in the middle and towards the end of the 
month. Hearly all the rain fell during the first half of the month. 
On the 9th the fall was considerable at 45 stations and very consider¬ 
able at one (Datchworth), and on the 12th it was considerable at 
17 stations and very considerable at one (again Datch worth). The 
2nd was the wettest day at 2 stations, the 9th at 40, and the 
12th at 12. 
March. —Bainfall a little below the average, but on more than 
the average number of days. Snow fell nearly every day for the 
first week, though never covering the ground to the depth of more 
than an inch, and there were a few slight falls towards the end of 
the month. There was no considerable fall of rain. The 2nd was 
the wettest day at 4 stations, the 28th at 49, and the 28th and 
29th were the wettest days at one. 
April.—A very dry month, with rain on rather less than the 
average number of days. There was no considerable fall. The 
12th was the wettest day at 2 stations, the 15th at 4, the 22nd at 
47, and the 4th, 5th, and 15th were the wettest days at one. There 
was a thunderstorm on the 12th in the north of the county. 
May.— A month of average rainfall on more than the average 
number of days. On the 20th the fall was considerable at 17 
stations, and on the 27th at one station (Moor Park). The 1st was 
the wettest day at 21 stations, the 20th at 28, the 27th at one 
station, the 31st at 3 stations, and the 10th and 31st were the 
wettest days at one station. 
