450 METEOROLOGICAL REPORT, 1871, BY THE 



The mean temperature of the air for the three winter months 

 of December, 1870, and February and March, 1871, was 36-4°, 

 being 1*6° lower than the average of 100 years. 



The principal movements of the barometer were as follows : — 

 A decrease from 30-85 inches on the 1st to 29*42 inches on the 

 6th, an increase to 30*00 inches on the 10th, a decrease to 29*12 

 inches on the 16th, an increase to 30*15 inches on the 18th; a 

 decrease to 29*59 inches on the 24th, and an increase to 30*28 

 inches on the 28th. The range of reading amounted to 1*24 

 inches. 



North Sunderland. — A very cold month, with some very hot 

 days. Great variation of temperature in shade. Barometer very 

 unsteady. Lowest temperature in shade, 24° on the 15th; high- 

 est temperature, 64° in shade on the 25th. 



Wark. — On the 14th and 15th the mercury in a thermometer, 

 facing N. about four feet from ground, and eighteen inches from 

 a wall covered with ivy, fell to 5°. 



Wallington.- — March came in like a lamb — the first four days 

 were remarkably fine and warm with bright sunshine. The 

 weather was more like June than March. The maximum tem- 

 perature on the 3rd was 64°. On the 5th a change took place, 

 and extremely cold and stormy weather set in, with frequent 

 gales of wind and showers of snow. This continued till the 18th. 

 Mock sun seen on the 5th and 7th. 



Minimum temperature on the 15th 12°, and the lowest for 

 the month. From the 19th again another extreme of fine and 

 clear weather, which continued to the 25th. On that day the 

 maximum temperature was 67°, accompanied with thunder and 

 lightning. Afterwards followed cold and stormy weather to 

 end of the month. The minimum mean temperature for the 

 month 33°, and the maximum mean 48*6°. Rain and snow fell 

 on fourteen days to the amount of 1*07 of an inch. Mock suns 

 were observed on the 5th and 7th. 



Meldon, near Morpeth. — From the 5th the weather was favour- 

 able to vegetation, until the 26th, except one severe frost on the 



