1. Meteorological Conditions and Features for This Summer Season (July and August)
 -In this summer, Japan had many clear and hot days through the first half of August 
  due to Pacific high barometric pressure staying over the Japanese territory. 
  Atmospheric temperature remained well above the average level in this time of year.
  In the latter half of August, after the summer holidays, there were many cloudy or 
  rainy days under the influence of weather fronts and low pressure, with significant 
  falls in temperature. A large difference in temperature range between the first and 
  latter halves was notable in this summer. 
 -The rainy season ended on July 19 (Saturday) in the Kanto and Koshinetsu regions, 
  which was earlier by one day than in the average year (July 20) and by 13 days than 
  in last year (August 1). 
 -The Tokyo Metropolitan area had only one "very hot day" (a day on which the maximum 
  temperature reaches 35oC or higher) during this summer season, on August 8 (Friday). 
  The number was less by about one day than in the average year (1.9 days) and by six 
  days than in last year.
 (Note) The source of figures and dates is the Japan Meteorological Agency.

2. Changes of Daily Maximum Atmospheric Temperature and Maximum Power Supply in This 
   Summer Season 


3. Occurrence of Maximum Power Supply in This Summer Season 
 -The maximum power supply in this summer season was 60.89 million kW, which occurred 
  at 15:00 on August 8 (Friday), the day when the highest atmospheric temperature of 
  35.3oC in this summer was recorded in the Tokyo Metropolitan area (a supply capacity 
  of 64.80 million kW was secured on this day ).
 -The maximum power supply in this summer season was 0.58 million kW less than that 
  in the same season last year (61.47 million kW on August 22, 2007, when the maximum 
  temperature hit 37.0oC in the Tokyo Metropolitan area).


 -The maximum supply of electric power in this summer season (60.89 million kW on 
  August 8) did not exceed that  of the past (64.3 million kW on July 24, 2001), 
  probably due to the following factors:
(1) The maximum temperature on the day when the maximum power supply was recorded 
    this summer was lower than that on the day of the maximum power supply in the past ;
(2) The demand of non-TEPCO customers was higher than that in fiscal year 2001;
(3) The public contributed to saving electricity. 

<Reference>Changes of Maximum Power Supply in Winter 
             (Daily Maximum at Power Generating End)