IEM Daily Feature
Tuesday, 25 February 2020

First 64

Posted: 25 Feb 2020 05:34 AM

The high temperature for Des Moines on Sunday hit 64 degrees, which was the warmest value to date for the site. The featured chart displays the combination of first such date of the year with a daily high temperature of at least 64 degrees and the number of days that year meeting that threshold. The 2020 first date is highlighted and the cumulative distribution shows it is about at the 20th percentile for day of the year. So about 80% of the years on record for the site have had a first date of 64+ degrees later than 23 February.

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