Natural infrasound of 5‐sec periods is generated continuously by ocean waves to the east of our location. The amplitude characteristics and horizontal phase velocity are functions of the acoustic reflection characteristics of the upper atmosphere. The monthly patterns of the observed acoustic parameters, culled from eight years of continuous observations, are reviewed and compared to the existing knowledge of 30–120‐km winds and temperatures. Included in the discussion are (1) the percentages of observed semidiurnal and diurnal amplitude oscillations for each month, related to the reliability of these tides in the upper atmosphere; (2) annually repeating oddities in each month such as a late March increase in semidiurnal tidal strength and varying meridional wind influences from summer to winter; and (3) the failure of current atmospheric models to correctfy predict the observed lower thermosphere sound velocity at 0400 which is much greater from the east then predicted.