Which of the following is NOT a characteristic of a nor'easter?

A nor'easter is a specific type of storm that typically forms on the East Coast of the United States, characterized by a combination of strong winds, heavy snowfall, and significant precipitation, particularly during the winter months.

The presence of strong winds is a hallmark of these storms, as they are often associated with intense low-pressure systems that produce powerful gusts from the northeast. Furthermore, nor'easters are notorious for their heavy snowfall, especially when they occur during cold temperatures, leading to hazardous travel and significant accumulation.

Significant precipitation is another defining feature of nor'easters, as they can lead to not only snow but also rain, sleet, and ice depending on the temperature profiles in the region.

Warm temperatures do not align with the usual characteristics of a nor'easter, especially in winter when these storms typically gain strength and release their precipitation in the form of snow rather than rain. Therefore, the assertion that warm temperatures are characteristic of a nor'easter is not accurate, making this option the correct choice for the provided question.