Des Moines & Waterloo Memorial Day Climate Statistics

Below are the Des Moines and Waterloo, Iowa, normals and records for Memorial Day. A couple of things to note, prior to 1971, Memorial Day was observed on May 30. From 1971 to present, Memorial Day has been observed on the last Monday of May. So to discern the records for each station, we had to determine what date Memorial Day was observed from 1971 to 2014 and took the highest and lowest temperatures and highest precipitation from that period and compared those numbers to the climate statistics on May 30 prior to 1971 in order to compile the Memorial Day records and daily averages.



Blog post by Kenny Podrazik – NWS Des Moines