- Red bars stretching upward - show number of observations within each TMIN bin for only days of extreme high NAM, where bins are 1°C wide and centered on whole numbers
- Blue bars stretching upward - show number of observations within each TMIN bin for only days of extreme low NAM, where bins are 1°C wide and centered on whole numbers
- Grey vertical line - mean TMIN for all days
- Black dotted vertical lines - mean TMIN for only days of either extreme high or low NAM
- Black vertical lines - thresholds for extremes of TMIN for all days
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