Meteorology of Whitehaven. 57 
Hygrometers. 
1 Ny 7 my | 
r | Mean Dew- | Mean Dew- | Mean Com- 
| Mean Dry Mean Wet | Point, Point, jess! tof | 
prey | «7, Bubba: lira sia, yfpmanunedl higgemeay oll Beeman 
January, 36°04 34°31 31°62 31°73 4°30 | 
February, 43°61 42°29 40°47 40°38 3°22 ! 
March, . 44°64 42-18 39°35 39°32 5°32 
cay yg Pe 49°96 45°96 41°72 41°66 8°40 
May, : 58°67 53°54 49°87 | 49-84 8:82 
June, . 60°73 55°44 51:74 | 51°73 8:99 
July, . 63:00 58°05 54°63 | 54°81 8:19 
August, 60°36 55:00 51:25 51:06 9°30 
September, 59°14 54°89 51°91 01°54 7°59 
October, 51°49 48°57 45°65 | 45°60 5:89 
November, 44°37 42-37) | 40°05 | 40°04 4°3% 
December, 42°90 41:17 39:03 | 38°71 4:19 
Means, . 51°24 47°81 44-77 44-70 6°54 
1847, . 51:20 j 44:03 | els 
* Jn determining the deduced point, Mr Glaisher’s valuable Hygrome- 
trical Tables have been used, and the above results, as also those for the | 
year 1847, shew, in astriking manner, the extreme accuracy of those tables, | 
as well as the correctness of the factors deduced from the six hourly | 
hygrometrical observations made at the Greenwich Observatory, on which 
Mr Glaisher’s tables are founded. The above observations were taken | 
twice daily, viz., at 11» a.m. and at 35 p.m. 
Remarks on the Climate of 1848. 
On reviewing the various elements of the weather in the past year, I 
find that the fall of rain is half-an-inch above, and the mean tempera- 
ture a quarter of a degree wider, the average of eleven years. 
The dew-point is 0°87 above, and its complement is nearly identical 
with the average. 
The evaporation is 2°17 inches under the usual quantity, and 19°13 
inches under the deposit of rain; it exceeds the rain in the months of 
April, May, and September, and in June and July the two processes very 
nearly balance each other.* 
The greatest depth evaporated in 24 hours, is 0°243 inch, on the 17th 
of July, temperature 70°, dew-point 62°°5, with a serene and cloudless sky ; 
the least is 0°002 on the 5th of February, with an exceedingly thick at- 
mosphere within 1° of saturation, and rain. 
The winds in 1848 have been distributed as under :— 
N. 30; NE. 40; E. 32}; SE. 403; S. 653; SW. 502; W. 592; 
* The gauge receives a fair proportion of wind and sunshine, and it is always 
exposed in the open air during the day, except when rain is falling ; at night, 
it is placed under a capacious shed supported by iron pillars. 
