October Warmth

October 2009 is shaping up to be one of the warmest Octobers on Record. While the string of record warm low temperatures came to an end on the 12^th of the month, temperatures remain 3.2F warmer than average so far this month. A detailed look at the temperatures and records set so far this month are displayed below.

October 2009:

	Maximum	Minimum	Record Max	Warmest Min
October 1^st	92	80	96 – 1992*	81 – 1983
October 2^nd	89	79	95 – 1982	80 – 2001
October 3^rd	92	79	96 – 1982	79 – 2009*
October 4^th	90	80	95 – 1994	80 – 2009*
October 5^th	92	81	93 – 1987	81 – 2009
October 6^th	92	80	93 – 1987	80 – 2009*
October 7^th	91	81	92 – 2007*	81 – 2009
October 8^th	90	81	97 – 1981	81 – 2009
October 9^th	89	81	98 – 1981	81 – 2009
October 10^th	90	81	95 - 1980	81 – 2009
October 11^th	90	80	95 – 1980	80 – 2009*
October 12^th	88	78	97 – 1987	81 - 1980

*Most recent year the record was reached

Also of note, the Luis Muñoz Airport International Airport in San Juan has recorded a record 57 days with low temperatures of 80 degrees or above so far this year (including 9 days this October alone). These 57 days dwarf the previous record of 32 days in a year with low temperatures of 80 degrees or above, which was recorded in 1981. (On average, San Juan sees only around 8 mornings a year with low temperatures of 80 degrees or higher.) Below is a list of the number of days and corresponding year, with low temperatures of 80 degrees or above.

Number of days with lows 80F+	Year of occurrence
57	2009
32	1981
29	1983
27	1980
25	1995
22	2008
17	1974
15	1972
14	1983, 2005

(Data from the Luis Muñoz International Airport dates back to January 1^st, 1956.)

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October Warmth