In the course of studying residential energy use in central Iowa, I kept track of the hourly temperatures recorded in Des Moines. The temperatures were simply those published daily in the Des Moines Register (with occasional obvious corrections). I noticed that during the winter months in Iowa there are occasionally long periods (up to a few days) when there is remarkably little change in outdoor air temperature, and these always occur near the freezing point of water.
Iowa Science Teachers Journal
© Copyright 1983 by the Iowa Academy of Science
"An Interesting Wintertime Temperature Phenomenon,"
Iowa Science Teachers Journal: Vol. 20
, Article 4.
Available at: https://scholarworks.uni.edu/istj/vol20/iss3/4