Earth Changes
The warmth has also led to bigger hauls of fish, especially anchovies, with the December catch of the species 45 times larger than usual.
In Iwate Prefecture, 21 of the 34 meteorological observation posts--including those in Morioka, Ofunato and Miyako--did not record a single day below 0 C between December and the end of February. In Morioka, temperatures stayed above freezing through the end of February for the first time since records were first kept there in 1924. In Hachinohe, Aomori Prefecture, it was the first time that temperatures had stayed so high since the city began keeping records in 1937.
In Maebashi, meanwhile, it was the first time since records began being kept there in 1897 that snow did not accumulate.
Hardest hit was Alabama, where at least eight people died when a tornado struck a high school building on Thursday. Nine more people died in Georgia.
US President George W Bush is due to visit some affected areas on Saturday.
The tornadoes were part of a major storm system that stretched across a swathe of the United States.
In a speech to a UN International School Conference, Ban acknowledged that the "majority" of the UN's work still focuses on the prevention and resolution of conflict.
"But the danger posed by war to all of humanity -- and to our planet -- is at least matched by the climate crisis and global warming," he said.
Hailstones as large as golf balls and winds over 50kmh lashed the city for less than 30 minutes on Tuesday night but left trees defoliated and turned nature strips into mud baths.
In much of Georgia, the weather service issued a "particularly dangerous situation" watch until 9 p.m. ET as meteorologists were expecting a band of harsh storms to slam into Atlanta during its usually messy rush hour.
The agency's observatory point in Otemachi, central Tokyo, did not record any snowfall from December to February, the period defined as winter in Japan.
About the time Christopher Columbus was arriving in America, a torrent of mud rolled down Rainier's western flank, burying the spot where Orting stands today. Five hundred years before that, an eruption sent a mud flow down the White River Valley to what is now Auburn.
In southern England, the winter warmth set a new high, reaching 6.53C (43.8F), beating 6.49C (43.7F) in 1989-90.
All three winter months saw above average temperatures, and January also recorded its second highest UK-wide temperature, reaching 6.0C (43F).