METEOROLOGICAL OBSERVATIONS MADE AT CHISWICK IN 1901. 805 



August. — Warm and dry. The days were, as a rule, about 2 degrees 

 -warmer than is seasonable, while the nights were of about average tem- 

 IDerature. On the coldest night the thermometer on the grass fell to 

 -37 degrees, or 5 degrees short of the freezing-point. 



The rainfall was light, being more than half an inch Vjelow the average 

 quantity for the month. 



Mean temperature of the air in shade 



62°.8 



Highest ,, „ „ 



85°.2 on the 10th 



Lowest „ ,, 



... 45°.8 on the 23rd and 28th 



Lowest „ on the grass 



3G°.9 on the 23rd 





At 1 ft. At 2 ft. At 4 ft. 





deep. deep. deep. 



Mean temperature of the soil at 9 a.nfL 



... <i4°.l 63°.l 60° 3 



Highest „ „ „ 



... 67°.8 64°.5 60°.5 



Lowest ,, „ „ 



... 58°.9 60^.8 o9°.7 



Mean relative humidity of the air at 9 a.m. (complete saturation being repre- 



sented by 100) 



66 



Rain fell on 10 days to the total depth of 



1-83 in. 



(Equivalent to about 8 gallons on each square yard of surface in the Gardens.) 



Heaviest fall on any day 



0-42 in. on the 27th. 



September. — Warm and dry. The days w^ere, as a rule, about 1 degree 



warmer, and the nights about 1 degree warmer, than is seasonable. On 



the coldest night the thermometer on the grass showed 3 degrees of frost. 



The rainfall was light, being more than 



three-quarters of an inch 



below the average quantity for the month. 





Mean temperature of the air in shade 



58°.l 



Highest „ „ „ 



75°.2 on the Hth 



Lowest ,, ,, „ 



37°.o „ 16th 



Lowest „ on the grass 



29°.0 „ 16th 





At 1 ft. At 2 ft. At 4 ft. 





deep. deep. deep. 



Mean temperature of the soil at 9 a.m. ... 



... 58°.8 59°.3 58°.5 



Highest „ „ „ 



... 62°.3 61°.l 59° 7 



Lowest ,, ,, ,, 



... 56°.5 58\3 57°.8 



Mean relative humidity of the air at 9 a.m. (complete saturation being repre- 



sented by 100) 



78 



Hain fell on only 6 days to the total depth of 



1-67 in. 



(Equivalent to about 8 gallons on each square yard of surface in the Gardens.) 



Heaviest fall on any day 



0-00 in. on the 20th 



October. — W^arm and dry. The days were, as a rule, about 2 degrees 

 warmer, and the nights about 1 degree warmer, than is seasonable. On 

 the coldest night the thermometer on the grass showed 7 degrees of frost. 



The rainfall was light, being nearly three-quarters of an inch less than 

 the average quantity for the month. 



Mean temperature of the air in shade ... ... ... ... 50^.0 



Highest „ „ „ 73°.0 on the 1st 



Lowest „ „ „ 29°.9 „ 27th 



Lowest temperature on the grass 25°. 2 ,, 28th 



Mean relative humidity of the air at 9 a.m. (complete saturation being repre- 

 sented by 100) S7 



Hain fell on 15 days to the total depth of ... ... 190 in. 



(Equivalent to about 9 gallons on each square yard of surface in the Gardens.) 

 Heaviest fall on any day ... ... ... ... 0*27 in. on the 4th 



