John Hay wrote of such days spent in Spain. We who live in a land where
the winds are more boisterous, occasionally experience what we call a
perfect day. Such days have easterly winds of two metres per second or
less than five miles an hour. The temperature is midway between freezing
and normal body temperature or about 70 deg. F. The relative humidity is
approximately 75% and the absolute humidity 12 grams per cubic metre.
The table on page 72 explains the paucity of perfect days. The gusty,
boisterous winds, Skiron and Zephyros, blow too frequently.
Perhaps certain of our national characteristics may be traceable to
this flow of the air and our climatic environment.