I looked at 31 days of OCT data and they reported a average deviation of 6.9 degrees per day (-214/31 from heating degree days info) above the average temperature of 47.8 or 54.7 degrees.
First freezing temperature was Oct 15. and they still needed their air conditioners as 5 cooling degree days for the month was reported
...THE CONCORD CLIMATE SUMMARY FOR OCTOBER 31 2007...
CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1871 TO 2007
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL .....................................................................
DEGREE DAYS HEATING YESTERDAY 17 23 -6 20 MONTH TO DATE 334 548 -214 502 SINCE SEP 1 477 760 -283 678 SINCE JUL 1 543 826 -283 726
COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 5 1 4 0 SINCE SEP 1 55 34 21 18 SINCE JAN 1 510 442 68 511
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