Erratic Daily Temperature Range

Monday March 21, Very hot
The weather was very erratic on last week.
And sometimes it became four seasons
on a day.  for example it became cold in
the morning, it was warm in the afternoon,
it was hot in the evening, it suddely cold in
the noon again, it was very cold than last
winter.  so I had a bad condition on last week.
I think it because of Japan's tsunami.
But today's the weather is very hot.
Only it very cold in the morning.
WHAT A UNBELIEVABLE WEATHER !!