XXII. 
METEOROLOGICAL OBSERVATIONS TAKEN AT THE GRANGE, 
ST. ALBANS, DURING THE YEAR 1888. 
By John Hopeinson, F.L.S., F.G.S., F.R.Met.Soc. 
Read at Watford , 2 6th April , 1889. 
There has been no alteration in the meteorological observations 
in any respect from the previous year, and therefore the results 
for the year 1888 may at once be entered upon. 
The accompanying tables (pp. 194, 195) give the monthly means, 
etc., and the following is the usual summary for the seasons, from 
Dec. 1887 to Nov. 1888. 
Means for the Seasons from Dec. 1887 to Nov. 1888. 
Seasons, 
1887-88. 
Pressure. 
Temperature. 
Tension 
of 
Vapour. 
Humi¬ 
dity. 
Rainfall. 
4 
Cloud, 
0 - 10 . 
Mean. 
Daily- 
Range. 
Total. 
Days. 
ins. 
O 
O 
in. 
°/o 
ins. 
Winter . 
30*032 
35 1 
9-9 
•182 
89 
3-85 
49 
7.7 
Spring . 
29-866 
43*8 
13-8 
•277 
79 
6*54 
48 
7-1 
Summer. 
29-903 
57-8 
I5-3 
•383 
80 
11-43 
59 
7-8 
Autumn. 
30 01*9 
49-0 
1 3*3 
•298 
87 
6-52 
43 
7’5 
The next table gives the difference in each month and in the 
year between the chief results for 1888 at St. Albans and the mean 
of the same for ten years at Watford. 
Difference in 1888 from Means of 1877-86 at Watford. 
Months. 
Pressure. 
Temperature. 
Tension 
of 
Vapour. 
Humi¬ 
dity. 
Rainfall. 
Cloud, 
0 - 10 . 
Mean. 
Daily 
Range. 
Total. 
Days. 
in. 
O 
O 
in 
% 
ins. 
January..... 
+ •235 
= 
-fi-o 
— -002 
+ 1 
- 1-58 
— 2 
—o-i 
February 
+ •021 
-5-6 
— 1-9 
— -048 
— 4 
— 1-29 
— 2 
4 - 0-6 
M arch . 
— •361 
—4*5 
~5 - ° 
— *019 
+ 8 
+i*73 
+ 11 
+ 0-7 
April. 
+ •028 
—3*2 
-3*2 
+•038 
— 4 
- 0-47 
+ 2 
4 - 1-2 
May .. 
+ 'ii3 
— 0*2 
+ 0-4 
+ •069 
4“ 1 
~ ri 7 
— 7 
+ 0-3 
June . 
— '022 
—1-7 
-i*5 
-j--oi 8 
+ 8 
4-o-93 
4 - 2 
4 - 1-9 
July . 
— -206 
-3-8 
— 4-0 
— •022 
+ 8 
4 -i’ 6 o 
4-n 
4 - 2-5 
August . 
+ •084 
— 2-6 
- 0-3 
-—•041 
+ 1 
4-0*91 
+ 3 
— 0-7 
September 
+ *208 
— 0-7 
—o*9 
—•015 
+ 1 
- 1-89 
+ 1-2 
October .... 
+ 'I54 
— 2’0 
- 1-2 "8 
—-042 
— 2 
— 1-96 
— 8 
— 0-4 
November 
• —*ii 5 
+3’4 
- 3*9 
+•042 
+ 2 
+i -68 
4- 4 
4 - 2*4 
December 
+•032 
+i -6 
— O’l 
+ •019 
+ 5 
— 1-16 
- 3 
-o -8 
Year . 
+•015 
—i*7 
1 *4 
= 
+ 2 
— 2-67 
+ 10 
+07 
VOL. V.—PART VII. 
13 
