In the terminology of the United States Weather Bureau, an unusual fall in temperature, to or below the freezing point, exceeding 16
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cold wave. Retrieved September 21, 2026, from http://smartdefine.org/cold_wave/definitions/1988904 |
| Chicago | Webster's. 2011. "cold wave" http://smartdefine.org/cold_wave/definitions/1988904 (accessed September 21, 2026). |
| Harvard | Webster's 2011, cold wave, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cold_wave/definitions/1988904>. |
| MLA | Webster's. "cold wave" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/cold_wave/definitions/1988904> |