Mr MarshaWs Meteorological Summary for 1827. 299 



Art. XI. — Summary for tJie year 1827 of the state of the 

 Barometer, Thermometer, ^c. in Kendal. By Mr Samuel 

 Marshall. Communicated by the Author. 

 In comparing the following summary with that for 1826, it 

 appears that the barometer has not reached the altitude which 

 it then attained, 30.78 ; and the mean height for the year is one- 

 tenth of an inch less. The heat of the summer months has not 

 equalled that of 1826, the greatest being 74°, and the mean 

 48.°03, whilst in 1826 the maximum was 85°, and the mean 

 47.°81. The superior mean temperature for 1827 may be ac- 

 counted for by the weather's being more uniformly mild. From 

 26th of April to 21st of November (or a period of nearly seven 

 months) the thermometer was never so low as the freezing 

 point, and from the former date to the end of the year, there 

 have been but eleven days of frost. We have had thirty- two 

 wet days more in this year than in 1826, and the quantity of 

 rain is greater by 14.926 inches. The writer of these remarks 

 has carefully registered observations on the weather in this 

 town for upwards of five years. He subjoins a summary from 

 1823 to 1827, both years included. From observations made 

 by the late John Gough, and by John Dalton of Manchester, 

 he inferred the mean annual quantity of rain for Kendal to be 

 51.8 inches. The average for the five years alluded to will 

 be found to be 57.310 inches. The difference may arise from 

 two causes ; one, the difference of altitude in the places where 

 the observations were made above the level of the sea ; but 

 though that does not exceed many yards, yet even so small a 

 difference will affect the amount of the mean in a series of 

 years. The observations from which the former mean was 

 calculated were taken from twenty different years, though not 

 twenty successive years. Assuming all the observations to be 

 equally correct, the mean deduced from the twenty years is 

 most likely to be the correct one. There are few places 

 where rain-gages are kept that have so great a quantity of 

 rain as at Kendal, though it it is probable that in many places 

 there are more rainy days within the same period. From a 

 number of observations now in my possession, the annual mean 

 quantity of rain which falls in England may be stated at 

 35.2 inches. 



