Explanatory note

Air temperatures and relative humidities shown on previous page are instantaneous readings recorded at the automatic weather station, while air temperatures and relative humidities in the hourly bulletin "Current Weather" are manually taken by weather observers during a ten-minute period before the end of the hour. The temperatures and relative humidities on the hour shown on previous page and the temperatures and relative humidities reported in the hourly bulletin "Current Weather" may be taken at different instants and hence may not be the same.