/4 J. HOPKOrSON JLETEOROLOGICAL OBSERVATIONS 



on a small number of days. No rain fell from 6th to 22nd (17 days) 

 except 0-07 in. on loth. Coldest day 7th, mean 49°'6 ;■ warmest 

 days 19th, mean 64°-4, and 25th, mean 64°-6. Min. below 52° on 

 18 days; max. above 62° on 25 days, above 72° on 7. 



July. — Cold and cloudy, with a humid atmosphere of average 

 pressure, and a rather heavy rainfall on a considerable number of 

 days. Hain fell every day for the first eight and last six days. 

 On 6th 0-44 in. fell in 20 minutes, from 2.20 to 2.40 p.m., being 

 at the rate of l'32in. per hour. Coldest day 29th, mean 54° "2; 

 warmest day 17th, mean 66°* 1. Min. below 52° on 20 days; max. 

 above 62° on 24 days, above 72° on 3 (16th, 17th, and 25th). 

 There were thunderstorms on several days (6th with 0-44 in. rain, 

 7th with 0-27 in., and 8th with 0-48 in.). 



AxjGTJsx. — Very cold and cloudy, with a humid atmosphere of 

 rather low pressure, and a very heavy rainfall on a large number 

 of days. Hain fell every day from 19th to 28th (10 days), the 

 average per day being upwards of a quarter of an inch. Coldest 

 day 30th, mean 52°-6 ; warmest day 14th, mean 64°-6. Min. 

 below 52° on 18 days; max. above 62° on 23 days. There were 

 thunderstorms during the first few days. 



Septembee. — Hather warm, bright, with a rather humid atmo- 

 sphere of rather high pressure, and a very small rainfall on about 

 an average number of days. The six days 8th to 13th were very 

 warm, having an average temperature of 64°*8. Coldest day 24th, 

 mean 52°'2 ; warmest days 12th, mean 66°"2, and 13th, mean 

 66°0. Min. below 52° on 21 days; max. above 62° on 21 days, 

 above 72° on 5 (9th to 13th). 



October. — Rather warm and bright, with a humid atmosphere of 

 very low pressure, and an excessive rainfall on a large number 

 of days ; in fact the wettest month since I commenced my observa- 

 tions at St. Albans. Rain fell every day from 5th to 22nd (18 days), 

 the average per day being 0-31 in. Coldest day 31st, mean 38°0; 

 warmest day 1st, mean 58°-0. Min. below 42° on 13 days, below 

 32° on 1 day (31st); max. above 52° on 25 days, above 62° on 

 1 day (1st). A lunar rainbow was observed on the 17th. 



IS'ovEMBER. — Of average temperature, veiy cloudy, with a very 

 humid atmosphere of rather low pressure, and a rather small 

 rainfall on an average number of days. Rain fell every day from 

 8th to 18th (11 days), the average per day being 0"15 in. The 

 last nine days were very cold, having an average temperature of 

 36°-7. Coldest day 30th, mean 35°- 1 ; warmest day 19th, mean 

 50°-3. Min. below 42° on 24 days, below 32° on 7 ; max. above 

 52° on 6 days. There was an exceptional and veiy sudden 

 depression on 11th, the pressure at 9 a.m. being 28-538 ins., about 

 an inch lower than the pressure at 9 a.m. on 10th and at 9 a.m. on 

 12th, and exactly an inch lower than the mean of these. From 

 9 a.m. to 6 p.m. on 11th the mercury rose about half an inch, and 

 by 11 p.m. it had risen another quarter of an inch. At the time of 

 lowest pressure rain was falling heavily and a gale of wind was 

 blowing. 



