62 J. HOPKINSON METEOEOLOGICAL OBSERVATIONS 



was one rather cold week, 17tli to 23rd, with a mean temperature 

 of 39°-7 (9 a.m. 37°-6, min. 30°-6, max. 51°-0). Eain fell only on 

 the first four days, and (chiefly as snow, with some hail) on 16th 

 and 1 7th. There was thus a period of eleven days without rain in 

 the first half of the month, and of fourteen days in the second half. 



April. — Exceptionally warm, with an excessively large daily 

 range of temperature, an exceedingly dry atmosphere of very high 

 pressure, a bright sky, and scarcely any rain. Coldest day 13th, 

 mean 41°-6; warmest day 20th, mean 61°-4. Min. below 42° on 

 21 days, below 32° on 2 (13th and 14th); max. above 52° every 

 day but 3 (11th to 13th), above 62° on 17 days, above 72° on 6 

 (19th to 21st, and 23rd to 25th). The warmest period was from 

 19th to 26th, the mean temperature duriag these eight days being 

 59°-0 (9 a.m. 57°-7, min. 45°-3, max. 74°-0), about an average 

 summer temperature. Rain fell only on 16th and 29th (0'06 in.), 

 an absolute drought of 29 days ending on the 15th. 



May. — Very warm, with a large daily range of temperature, a 

 dry atmosphere of high pressure, a bright sky, and a very small 

 rainfall on very few days. Coldest day 31st, mean 48°- 1; warmest 

 day 15th, mean 66°-o. Min. below 42° on 6 days (above 52° on 

 20th) ; max. above 52° every day, above 62° on 26 days, above 72° 

 on 5 (5th, and 12th to 15th). The warmest period was from 9th 

 to 16th, the mean temperature during these eight days being 59°"2 

 (9 a.m. 59°-2, min. 45°-9, max. 72°-5), thus only a little warmer 

 than the wannest eight days in April. Ilaia fell only on 1st, 15th 

 to 20th, and 29th. A partial drought of 75 days, with an 

 aggregate rainfall of only 0-45 in., ended on the 15th. During 

 a thunderstorm on 17th nearly an inch fell (0"93 in.), being 

 considerably more than half the rainfall of the month. The fall 

 on 29th was also due to a thunderstorm. 



June. — Wann, with a large daily range of temperature, a very 

 dry atmosphere of rather high pressure, a sky of average brightness, 

 and an exceedingly small rainfall on very few days. Coldest day 

 1st, mean 51°"2, warmest day 17th, mean 72°*5. Mia. below 52° 

 on 21 days, below 42° on 3 (1st to 3rd); max. above 62° every day 

 but two (1st and 11th), above 72° on 10 days, above 82° on 5 (15th 

 to 19th). The mean temperature of the six days 14th to 19th was 

 71°-8 (9 a.m. 71°-5, min. 56°-8, max. 87°-2), being at least 12° 

 above the average for the time of the year. Rain fell only on 4th, 

 6th, 21st to 24th, 26th, and 27th. A partial drought of 32 days, 

 with an aggregate rainfall of 0-27 in., ended on the 21st. 



July. — Veiy warm, with an average daily range of temperature, 

 a very dry atmosphere of average pressure, a bright sky, and a 

 considerable rainfall on a large number of days. Coldest day 1 5th, 

 mean 55°'3 ; warmest day 8th, mean 74°-3. Min. below 52° on 

 4 days; max. above 62° every day but one (13th), above 72° 

 on 8 days (1st to 8th), above 82° on 4 (2nd, 6th, 7th, and 8th). 

 The first eight days were the warmest, having a mean temperature 

 of 67°-7 (9 a.m. 68°-2, min. 54°-5, max. 80°-4). Most of the rain 

 fell between 8th and 26th, only thi-ee days out of these nineteen 



