318 METEOROLOGICAL REPORT, 1870, 



was in defect of the average. The absolute maximum for the 

 month was 30-37 inches ; the absolute minimum 29*55 inches ; 

 and the range of reading 0-82 inches. 



The mean temperature of June was 60-9°, being 2 # 7° higher 

 than the average of 99 years, higher by 5-6° than in 1869, lower 

 than in 1868 by 11°, higher than in 1867 by 2-8, and the same 

 as in 1866. The fall of rain was 0-39 inch, and there is only 

 one instance of a smaller fall, viz., in 1849, when it was 0*3 

 inch. 



Wallington. — The month was marked by fine growing wea- 

 ther, with frequent showers of rain. Vegetation generally ad- 

 vanced rapidly. Rain fell on fourteen days. The 6th was the 

 warmest day, 80°. The lowest night temperature recorded was 

 on the 28th, 34°. Mean of month, 54-4°. 



Whitley. — A very good mirage was seen on the 23rd about 



7 P.M. 



Wylam. — A very fine month. 



Barometer—Mean height, 29-979; highest, 30-605 on the 6th; 

 lowest, 29-473 on the 11th. 



Thermometer — Mean of daily minimum, 48-20° ; lowest, 38° 

 on the 28th. Mean of daily maximum, 67 # 23° ; highest, 79° on 

 the 22nd. Mean of minimum and maximum, 57*72°. Mean of 

 wet bulb, 53-83° ; of dry bulb, 57-67°. 



Rainfall on twelve days, viz., 1'40 inches ; greatest fall, 0-53 

 inch on the 25th. 



Mean height of river, 1-57 feet; highest, 2-5 feet on the 2nd. 

 Wind— W. 



Acklam, near Middlesbro'. — The commencement of the montb 

 was marked by hot days and cold nights — very trying to vege- 

 tation. 



A Lunar Halo was seen at Sunderland on the 11th. Solar 

 Halos were seen at Sunderland on the 2nd, 6th, 10th, 11th, 

 13th, 15th, 18th, and 30th. Thunder was heard, but Light- 

 ning was not seen, at Wallington on the 17th, 24th, 29th, and 

 30th ; at Rothbury on the 23rd ; at Gainford on the 9th. Thun- 

 derstorms occurred at Byrness on the 23rd ; at Wallington on 



