Is there a connection between the colder weather and the Tonga volcano?

It is not yet known whether the Tonga volcano eruption will cause global cooling.

On January 17, 2022, Professor Xiao Long from China University of Geosciences (Wuhan) said in an interview that strong volcanic eruptions may cause an abnormal decrease in atmospheric temperature and produce a "volcanic winter." However, it is still necessary to continue to observe the volcanic activity to determine the impact on temperature.

The power of Tonga volcano:

The power of the VEI will be increased by 10 times if it is one level higher. Starting from VEI level 4, it will cause huge damage and bring serious consequences to human life. The impact of the 2010 Icelandic volcanic eruption was VEI level 4. The eruption of volcanic ash and other materials covered thousands of kilometers, affecting flights throughout Europe at that time.