 is 1.83‚Äù. 0.0225 √∑ 1.83 = ~1.2%. <a href="https://papers.ssrn.com/sol3/Papers.cfm?abstract_id=3551767">Wang, Jingyuan and Tang, Ke and Feng, Kai and Lv, Weifeng</a>&nbsp;<a href="#fnref37" rev="footnote">&#8617;</a></p>
	</li>

	<li id="fn38">
	<p>In 2019 at Central Park, hottest month (July) was 79.6¬∞F, coldest month (Jan) was 32.5¬∞F. Difference is 47.1¬∞F, or ~26¬∞C. <a href="https://www.weather.gov/media/okx/Climate/CentralPark/monthlyannualtemp.pdf">PDF from Weather.gov</a>&nbs