STORM2K

Boston sizzled in 1983.

Summer 1983 saw the temperature exceed 95° seven times at Boston (Logan Airport):

June 22 97°
July 4 98°
July 16 99°
August 8 96°
August 20 97°
September 11 99°
September 20 97°

Boston had four heat waves in which the temperature reached or exceeded 90° on three or more consecutive days.

The longest heat wave occurred during the July 15-July 21 period:

July 15: 93°
July 16: 99°
July 17: 91°
July 18: 93°
July 19: 90°
July 20: 93°
July 21: 95°

Moreover, on 30 days the temperature reached or exceeded 90°:

June: 5 days
July: 13 days
August: 6 days
September: 6 days

July 1983 was the hottest month ever in Boston with a mean temperature of 78.0°.

With a mean temperature of 70.6°, September 1983 was the hottest September on record for Boston. 1930 came a relatively distant second with a mean temperature of 69.4°.

The other months ranked as follows:

June: 70.7° Tied for 10th
August: 73.6° Tied 18th

June through August: 74.1° Tied 1st (with 1949)
July though September: 74.1° 1st (2002 finished 2nd at 72.9°)
June through September: 73.2° 1st (1952 was 2nd at 71.7°)