The maximum temperature recorded at the Met Eireann Weather station was on 2 August 1995. Extremes recorded at the station include the highest air temperature of on 29 June 1976, the lowest air temperature of on 2 January 1979 and the lowest ground temperature of on 12 January 1982. The maximum daily sunshine was 16.3 hours on 18 June 1978. The warmest and sunniest month on record in Kilkenny was August 1995 with a total of 274.9 hours Sunlight and very high temperatures throughout. The maximum daily sunshine was 16.3 hours on 18 June 1978. The overall trend in temperatures has been on the rise with a marked increase from 1988 onwards. Annual temperatures are running over 0.5 degrees above 20th-century levels.

Answer this question based on the article: How many years apart were the extreme highest and lowest air temperatures recorded?
3