184 
J. HOPKINSON-REPORT ON THE 
Distribution of Rainfall throughout the County. —The mean rain¬ 
fall in the catchment-basin of the Ouse was 19 82 ins., and in that 
of the Thames 22-68 ins. The following table (Table IV) gives 
the mean fall for each month and for the year in each of the five 
river-districts represented, and in the county for comparison, and 
also the difference in the year from the mean of the previous 
ten years. 
Table IV. —Rainfall in the River-Districts. 
Months. 
Cam. 
Ivel. 
Thame. 
Colne. 
Lea. 
County. 
ins. 
ins. 
ins. 
ins. 
ins. 
ins. 
January . 
i -8o 
2-25 
3-20 
2 - 8o 
2-32 
2*49 
February. 
•8o 
•64 
•83 
75 
•82 
78 
March. 
2-38 
2-36 
2’53 
2 - 6o 
2*33 
2*43 
April . 
•63 
•68 
1-36 
1-36 
•q8 
1*09 
May.. 
1 84 
1-91 
1-49 
i*37 
i*53 
i*5i 
June. 
1-84 
1-90 
2-22 
2*55 
2*43 
2-41 
July...... 
3-83 
4-10 
4-64 
■ 4*25 
4-41 
4*32 
August . 
1-42 
2*05 
3*34 
2-48 
2-31 
2*35 
September .. 
•17 
*33 
73 
*75 
*55 
*59 
October . 
1-67 
i*54 
i-66 
i*55 
1-46 
1 ’ 5 l 
November .. 
175 
1-89 
2’54 
2*47 
2-36 
2*35 
December . 
75 
74 
•70 
*53 
*54 
•56 
Year . 
18-68 
20-39 
25-04 
23-46 
22-04 
22-39 
Difi. from 1880-89 
—4-82 
—4-88 
— 5 * 9 i 
— 4*25 
- 4*35 
The mean fall in each of the minor river-basins, or sub-districts, 
was as follows :— 
Cam. 
Ivel. 
Thame. 
Colne. 
Bhee... 
18-68 
Hiz . 
. 20-39 
Upper Thame .... 
. 25-04 
Bulborne. 
22-83 
Gade. 
. 21-41 
Yer . 
23-79 
Lower Colne . 
25-94 
'Mimram . * 22-10 
Beane . 2175 
Bib . 21-79 
Ash . 23-07 
Upper Lea . 21*59 
^LowerLea. 23-02 
The total yearly fall ranged from 18-68 ins. at Royston to 
27*68 ins. at Moor Park, Rickmans worth, and the total monthly 
fall, from 0'09 in. at Apsley Mills, Hemel Hempstead, in December, 
to 6*77 ins. at Moor Park, in July. The greatest fall in any one day 
was 4-19 ins. at Moor Park on the 17th of July. 
Distribution of Rainfall in each Month. —The nomenclature used 
in the following account of the chief falls of rain is the same as in 
previous reports, falls of at least \ inch being styled considerable, f- 
inch very considerable, 1 inch great, 1£ inch very great, 1£ inch 
heavy, If- inch very heavy, and of 2 inches and upwards excessive. 
This analysis only applies to the 24 stations from which I have 
returns of the daily rainfall, except when the fall, being at least 
half an inch, was the maximum in the month. 
