PEOCEEDINGS 



HOLMESDALE NATURAL HISTORY CLUB. 



Evening Meeting. — January 17th, 1890, 



Mr. W. H. Tyndall read ' Meteorological Notes, Redhill, 

 1889 ' :— 



Barometer. — There have been no excessive variations of 

 the barometer. The maximum occurred on the 4th of 

 January, when it reached a height of 30-66 in. The 

 minimum was on the 20th of March, when it fell to 29*05 in. 

 On 192 days it reached 30 in. and upwards ; on 173 days it 

 fell below 30 in. The highest average of the month was in 

 November, being 30-22 in. ; the lowest average in October, 

 being 29-72 in. In October it rose to 30 in. on three days 

 only ; in January it rose to 30 in. and upwards on 23 days. 



Thermometer. — The range of the thermometer during the 

 year has been 70° 5', being 85° 50' on the 1st of August, and 15° 

 on the 12th of February. It fell to freezing and below on 75 

 days ; rose to 70° and above, but under 80°, on 63 days ; rose 

 to 80° and upwards on 5 days. This result shows fewer frosty 

 days, and more warm days, than in 1888. In that year there 

 were 91 frosts ; only 28 days on which the thermometer 

 reached 70° and was under 80°, and only 3 days on which it 

 reached 80° and upwards ; the maximum being 82° on the 25th 

 of June. Upon the whole, 1889 was warmer than 1888. On 5 

 days only did the thermometer fail at some portion of the 

 day to rise above the freezing point — on the 1st, 5th, and 6th 

 of January, on the 25th of February, and on the 3rd of 

 December. On many other days the ground continued frozen 



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