You undoubtedly don't need the weather statisticians to tell you this summer has been very hot and dry.

But for those seeking more information: The summer of 1988 was the hottest and the second driest in 115 years of record keeping in Salt Lake City.William J. Alder, meteorologist in charge of the National Weather Service at the Salt Lake International Airport, said August was another warm and dry month, with the average temperature being 1.6 degrees above normal.

But no 100-degree readings were recorded during the month at the airport. Normally, the average is one. On five days, the temperature hit 96, a bit cooler than the summer high of 101 set in July.

The average temperature during June, July and August was 4 degrees above the average 73.7-degree reading.

Six 100-degree readings were recorded, two in June and four in July.

Alder said the average temperature during June, July and August was 77.7 degrees or 0.2 degrees above the previous hottest summer, 77.5 degrees, in 1961. The next was in 1919, when the temperature averaged 77.2 degrees. The average temperature for June 1988 was 75.7; July, 80.9; and August, 76.5.

The temperature has reached 95 degrees or warmer during 40 days of the first eight months of 1988.

Precipitation during August totaled only .22 inches, 23 percent of normal. Total precipitation for 11 months of the water year, Oct. 1 through Sept. 30, was 9.87 inches, which is 68 percent of the normal amount, 14.42 inches. That is the seventh driest 11-month period at the airport. The driest was in 1933-34, when only 7.76 inches was recorded.

Only .29 inches of moisture was recorded during June, July and August - just 11 percent of the normal of 2.61 inches. The wettest summer on record in 115 years was 7.93 inches in 1945.

Hot weather, which really got started this year in May, has also brought high electrical bills. Alder said the index that measures cooling-degree days (time required for air conditioners) was approximately one-third higher this year than normal. This year's total is 1,280-degree days; the normal amount is 869.