def valid_daily_min_temperature(comp, units='K'):
    r"""Decorator to check that a computation runs on a valid temperature dataset."""

    @wraps(comp)
    def func(tasmin, *args, **kwds):
        check_valid_temperature(tasmin, units)
        check_valid(tasmin, 'cell_methods', 'time: minimum within days')
        return comp(tasmin, **kwds)

    return func