For Des Moines, the high temperature on Tuesday was just 59°F. The rest of the state did not fare much better with most below 60°F for the day. The featured chart presents the day of May frequency of having a high temperature below 60°F for Des Moines. The overall frequency for a single May is about 3.5 days, so these events are not terribly rare. The chart does nicely show the near linear decline in frequency as the month progresses, but another repeat looks to be in store today before warmer weather returns starting Thursday.

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