This stretch of heat was the beginning of an historic heat wave comparable to the intense heat experienced in the 1930's. The high temperature exceeded 100 degrees on the final three consecutive days of the month. At Carbondale, the high temperature was 106 degrees on the 28th, 107 on the 29th, and 105 on the 30th. At Paducah, KY on the Illinois state line, the high of 108 degrees on the 29th tied the all-time highest temperature recorded there. The all-time record was first set on July 17, 1942. Humidity levels were not especially high due to the ongoing drought, so heat index values were close to the actual temperature. High pressure at the surface and aloft covered the better part of the country for most of June. Toward the end of the month, the high strengthened and centered itself over the Lower Ohio and Mid-Mississippi Valleys.

Heat in ALEXANDER, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in EDWARDS, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in FRANKLIN, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in GALLATIN, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in HAMILTON, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in HARDIN, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in JACKSON, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Heat in JEFFERSON, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in JOHNSON, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in MASSAC, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in POPE, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in PULASKI, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in SALINE, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in UNION, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in WABASH, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in PERRY, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in WAYNE, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in WHITE, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Heat in WILLIAMSON, ILLINOIS
From 29-JUN-12 12:00:00 to 30-JUN-12 17:00:00 (CST-6)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS