TAKEN AT THROCKING, HERTS, IN 1884 . 
243 
total of 0*04 fell upon 3 days. Wet Periods.— The heaviest rainfall 
was between July 9th and 11th, 2*12 ins. falling on those 3 days. 
Fain fell very frequently between November 30th and December 
21st, though in no large quantities except on the last day of 
November. 
From the following table it will be seen that when compared 
with previous years the winter season of 1883-84 was the warmest 
and driest; the spring was the driest but with the lowest mean 
pressure; the summer was the hottest with the highest mean 
pressure; and the autumn was the driest with the highest mean 
pressure, the temperature being very similar to that of 1883, and 
higher than in any other autumn in the period. 
Seasons, 
1883 - 84 . 
Mean 
Pressure. 
Mean 
Tempera¬ 
ture. 
Mean 
Daily- 
Range. 
Tension 
of 
Vapour. 
Relative 
Humidity 
Rain¬ 
fall. 
ins. 
O 
° 
ins. 
% 
ins. 
Winter .................... 
3 ° "°6 
39-8 
9’3 
•227 
95 
375 
Spring ... 
29*92 
46 "i 
i8*i 
•271 
82 
2-43 
Summer.................... 
30*06 
59‘3 
18*5 
•456 
82 
6 *61 
Autumn. 
30*12 
49-0 
12*3 
• 3*7 
91 
4*9 
In conclusion, I will proceed to give a few notes on the months, 
as I have generally done. 
January. — Mild and fine, but ending somewhat stormily. 
Pressure, which was slightly above the mean, was highest, 30*63, 
on 16th, and lowest, 28-47, on 26th. Temperature was Very con¬ 
siderably above the mean, and the highest mean temp, of the period 
for January; warmest day 48°’ 1 on 23rd; coldest day 84°*2 on 1st; 
highest in sun 116°*0 on 2nd; lowest on grass 27°*0 on 29th. 
Accumulated temperature since January 1st above 42° was 54°, and 
below 42° was 93°. Rainfall was somewhat above the mean ; 
between 9th and 21st only 0*03 fell, on one occasion; chief falls 
other than max., 0*20 on 24th, and 0 22 on 25th. Prevailing winds, 
S. and S.W. ; gale on 26th. 
February.— A mild dry month, as far as I am able to ascertain 
the driest February since 1863. Pressure, which was slightly 
below the mean, was highest, 30*15, on 14th, and lowest, 29*43, on 
1st. Temperature was a trifle above the mean; warmest day 46°*9 
on 13th; coldest day 33°*4 on 29th; highest in sun 95°*8 on 20th; 
lowest on grass 23°*5 on 29th. Accumulated temperature since 
January 1st above 42° was 91°, and below 42° was 206°. Rainfall 
was much below the mean, less even than a third of the mean, and 
no fall other than max. reached even a tenth of an inch. Prevailing 
winds, S. and S.W. 
March.— A bright calm month, and very dry after the 10th. 
Pressure, which was slightly below the mean, was highest, 30*18, 
on 27th, and lowest, 29*19, on 10th. Temperature was somewhat 
above the mean; warmest day 48°*4 on 16th; coldest day 33°*7 
on 1st; highest in sun 111°*4 on 16th; lowest on grass 22°*6 on 
