Apart from a warm February monthly temperatures were below normal for the first six months of 1951. From July until the end of the year, however, they were above normal so that the annual mean The year temperature was only 0.2°F below the normal of 72°F. was slightly more cloudy and humid than usual, December being the only month which was less humid than normal.
Accumulated rainfall for the year remained above normal from April 19th and by the end of December was 2363.9 mm., about 9% above average.
There were excessive amounts of rainfall during May and June, the total for the former month of 553.8 mm. being 94% above normal.
On May 13th a tropical storm passed north of Hong Kong on a NE❜ly course. No gales were experienced in the Colony but the rainfall that day of 180 mm. was the daily maximum for the year.
Gales blew for a short period on June 19th when a tropical storm passed about 180 miles SW of Hong Kong. The maximum gust of 63 knots recorded at the Royal Observatory was 5 knots greater than the previous record for June.
Prolonged gales were experienced during August 1st and 2nd when a typhoon passed some 90 miles SSW of the Colony and gave rise to the maximum gust for the year of 76 knots from ENE.
During September typhoons threatened the Colony on three occasions but only one brought gales, and then only for a few hours, on the 2nd.
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