96 J. HOPKINSON — METEOROLOGICAL OBSERVATIONS. 



four days it was 64'^"5, or 6°'0 above it. No considerable change 

 occurred again until the 23rd, that and the following day being 

 very cold. The temperature then rose again to above the monthly 

 mean. There were two periods with the daily maximum above 

 70°, the 5th and 6th, mean of the maximum 73°-3 ; and the 14th 

 to 21st, mean of the maximum 7l"'5. The mean temperature for 

 these periods was 65°"2, and 64°*4, respectively. Atmospheric 

 pressure was less variable than in any previous month in the year, 

 ranging from 29*496 ins. at 9 a.m. on the 8th, to 30'202 ins. at 

 9 a.m. on the 24th. For the first four days the wind was north- 

 westerly, and south-westerly winds (S. to W.) prevailed from the 

 5th to the end of the month, with an interval of four days (11th 

 to 14th) with a northerly, and of one (25th) with a S.E., wind. 

 There was no interval of more than a day witbout rain, except 

 the 4th and 5th, and the 10th to 13th. The heaviest falls were 

 towards the end of the month. On the 25th 0-85 in. of rain fell, 

 the only near approach to the maximum of the 25th. There was 

 a very severe thunderstorm between 5-30 and 6 a.m. on the 19th, 

 and a heavy gale on that and the following night. Thunderstorms 

 also occurred on the morning of the 25th and on the night of 

 the 26th. 



