On Monday morning, frigid air following widespread snowfall drove temperatures to record lows across Japan, with Narita and Haneda Airports logging their coldest mornings on record and sub-zero temperatures covering over 90% of the country, according to a report by Sayaka Sofia Mori. Central Tokyo dropped below −3°C for the first time in 42 years for February. Narita and Haneda Airports both registered sub-zero readings marking their coldest mornings ever documented, as stated in the report posted on X. The extreme cold affected much of Japan, including Tokyo, in the wake of recent heavy snowfall. The temperature in central Tokyo reached below −3°C, a level not seen in February for 42 years, per the same source. Over 90% of Japan experienced sub-zero conditions during this frigid event.