Hmm, the author doesn&#x27;t appear to realize that seasons lag the solstices&#x2F;equinoxes by a month or more.  This happens because the ocean soaks up the heat or cold... one of the properties of water.  That&#x27;s why we push them back half a season.<p>Whether your city is a maritime one or not is also a factor.  For example, this year in California, summer went until the middle of October even though the sun was not very high at that point.<p><a href="http:&#x2F;&#x2F;water.usgs.gov&#x2F;edu&#x2F;heat-capacity.html" rel="nofollow">http:&#x2F;&#x2F;water.usgs.gov&#x2F;edu&#x2F;heat-capacity.html</a>