TAKES' AT WANSF0RD HOUSE, WATFORD, 1883 . 
187 
(as in 1882) less tlian in any other season, of the year. In the 
summer (June to August) the mean pressure was rather high, the 
mean temperature was about the average, and the relative humidity 
and rainfall were considerably below it. In the autumn (Sept, to 
Nov.) the mean pressure was again high, and the mean temperature, 
relative humidity, and rainfall were slightly above the average. 
Difference in 1882-88 from means of 1877-82, at Watford. 
Seasons, 
1882 - 83 . 
Pressure. 
Temperature. 
Tension 
of 
Vapour. 
Humi¬ 
dity. 
Rainfall. 
Cloud 
0-10. 
Mean. 
Daily 
Range. 
Total. 
Days. 
Winter ..... 
Spring ..... 
Summer..... 
Autumn..... 
ins. 
-*i 5 8 
+•019 
+'053 
+•072 
O 
+ 3*6 
—2*2 
+0*1 
+i*i 
O 
+0*2 
+2*2 
—0*1 
in. 
+•028 
— *022 
— *021 
+ *003 
°/ 
+ ^ 
— 1 
— 4 
+ 1 
ins. 
+ 3*49 
—2*38 
— 3‘94 
+071 
+14 
—10 
— 10 
+ 8 
— *2 
— *2 
+ *2 
The following notes record the general character of the weather 
in each month, and its principal changes. 
January. —Yery mild, with a rather humid atmosphere of low 
pressure, and a considerable amount of rain ; the fourth mild month 
in succession. The first day was very warm (min. 46°* 1, max. 54°* 1, 
mean 51°*5), corresponding very closely with the last six days of 
December 1882. The next four also were warm, the first five being 
considerably warmer than any similar period during the rest of the 
month. 
1st to 5 th .......... 9 a.m. 46 °-l Mean Min. 42°*5 Mean Max. 48 0, 3 Mean 45 0, 6 
Mean of Month ,, 39 -6 ,, 35 -9 ,, 44 *9 ,, 40 -1 
Difference.......... ,, 6-5 ,, 6 -6 ,, 3 *4 ,, 5-5 
The only cold days, with the 9 a.m. temperature below 82°, were 
the 23rd (mean 32°*8), and the 31st (mean 31°*8). Max. above 42° 
on 22 days (a very large number for January); min. below 32° on 
6 days (a very small number). The last six days were very stormy, 
and there was a slight fall of snow on the 30th, the only one during 
the month. This stormy period was ushered in by a rapid decrease 
in pressure, as shown by the following barometer-readings (at 9 
a.m.): —23rd, 30*684 ; 24th, 30*381 ; 25th, 29*650; and 26th, 
29*188 ins. 
February. —Mild, rather bright, with an atmosphere of average 
humidity and somewhat high pressure, and with much rain, of 
which more than 4 inches of the amount recorded fell within the 
first fortnight, and about 4£ ins. by the 18th. The max. fall of 
the 2nd was nearly equalled on the 10th, and in the five days, 
from 6th to 10th, about 2 ins. fell. After the 20th there were, on 
the other hand, seven days in succession (21st to 27th) without 
rain, and the high mean pressure of the month is due to this period, 
