July 2012 went down in history as the warmest month of record at Indianapolis. The average temperature for July was 84.0 degrees ... eclipsing the previous record of 82.8 degrees set in July 1936 by slightly more than one degree.
The temperature reached 95 degrees on July 31st at the Indianapolis International Airport. The number of 90-degree days for the month climbed to 28 ... besting the old record of July 1901 by 3 days. The total number of 90-degrees for the year increased to 43...the most for a year since 1988. This number will increase during early August. The record is 58 days set in 1983.
July's record for the most 95-degree days in a month increased to 19. The previous record of 16 was set in July 1936. The total number for the year was 22 days ... trailing only 1936 with 31 and 1988 with 23. Early August will likely see another day of 95-degree heat...which would match 1988's total.
The number of 100-degrees days for the month was 7...second only to July 1936 which had 9 days. The yearly total was 9 days...trailing only 1936 with 12 and 1934 with 10. The current forecasts do not indicate any triple digit temperatures for the Indianapolis area. The latest 100-degree reading for the Indianapolis area occurred on September 15, 1939.