These are dates which only have one weather event listed for the "On this day" feature of the weather portal. This represents 7 days (1.9%) out of 366.
January (ALL DONE!)
editFebruary (1 remains)
editMarch (2 remain)
edit- 2014: Cyclone Lusi formed near Vanuatu, causing major flooding over several days that killed 10 people.
- Portal:Weather/On this day list/March 29/1