90 EAEL OF ESSEX METEOEOLOGICAL OBSERVATIONS. 



The moan temperature of the aii* was 37°'5 ; the highest, 57° on 

 the 1st; the lowest, 19^ on the 19th and 21st; range, 38°: the 

 mean high day temperature, 45°' 1 ; the mean low night temperature, 

 29''-9 ; mean daily range, 15°-2. The highest temperature in the 

 sun was 70° on the 23rd. 



The direction of the wind was JS'.'W. on 6 days, IST. on 4, ^.E. 

 on 1, E. on 4, S.E. on 1, S. on 3, S.W. on 4, and W. on 8. 

 AVesterly winds (S.W. to N.W.) prevailed to the 18th, then 

 northerly, and south-easterly for the last week. 



Eain fell on 11 days, and snow on the 9th, 12th, 20th, and 22nd, 

 the total amount of rain and melted snow being 3'09 ins., and the 

 greatest fall in one day 0-75 in. (as snow) on the 12th. 



The temperature sank to below freezing-point on the 19th only. 



Apkil. — The mean pressure of the atmosphere was 29'90 ins. ; 

 the highest reading, 30'50 ins. on the 4th and 5th; the lowest, 

 29-00 ins. on the 19th; range, 1-50 in. 



The mean temperature of the air was 43°- 1 ; the highest, 62° on 

 the 8th ; the lowest, 22° on the 13th ; range, 40° : the mean high 

 day temperature, 52°- 1 ; the mean low night temperature, 34°"0 ; 

 mean daily range, 18°*1. The highest temperature in the sun was 

 83° on the 4th. 



The dii-ection of the wind was N.W. on 2 days, N. on 1, IS'.E. 

 on 4, E. on 4, S.E. on 1, S. on 6, S.W. on 7, and W. on 5. 

 Westerly winds prevailed for the first half of the month, then 

 easterly, and south-westerly to the end of the month. 



Eain fell on 8 days, and snow on the 13th, the total amount of 

 rain and melted snow being 2-39 ins., and the greatest fall in one 

 day 0-75 in. (as snow) on the 13th. 



May 1875 to Apeil 1876. — The mean pressure of the atmosphere 

 for the twelve months was 29-96 ins. ; the highest reading, 30-60 

 ins. on the 15th of January; the lowest 28-80 ins. on the 12th of 

 March ; range, 1-80 in. 



The mean temperature of the air was 46°-6 ; the highest, 80^ on 

 the 4th of June ; the lowest, 10° on the 4th of December ; range, 

 70° : the mean high day temperature, 54^-3 ; the mean low night 

 temperature, 38°-9 ; mean daily range, 15°-4. The highest temper- 

 ature in the sun was lOS"" on the 15th of May. 



The direction of the wind was jS".W. on 43 days, N. on 15, N.E. 

 on 60, E. on 43, S.E. on 22, S. on 40, S.W. on 91, and W. on 52. 



Rain (or snow) fell on 153 days, the total amount being 33" 16 

 inches. 



