Temperatures on Sunday were downright balmy with high temperatures above freezing and lows above zero! For places like Ames, this was the first day with a low above zero since 29 December making for eight straight days. The featured chart looks at the coldest stretch of eight days based on average low over that period. The horizontal bars denote the period of days and the color denotes the value for that period. The bottom panel displays a frequency for the individual day of the year participating in this period. So having this happen during early January isn't that exceptional, but one wonders if a colder period of eight days could still happen later this winter season? The frequencies would indicate that chances are still good for that to happen.

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Tags:   lows