Friday, January 15, 2010

Alabama Cold Wave of 2010 Statistics


1/7/2010, Vinemont, Alabama

During the 232 hours (9 days and 16 hours) between 7 p.m. January 1, 2010 and January 11, 2010 at 10 a.m. the official Huntsville hourly temperature observations were above freezing during only 8 of those hourly observations. In other words, the temperature was freezing or below approximately 97 percent of the time. This was the coldest first 10 days of the year in recorded history for Huntsville.

A few more stats from the cold wave:

23.24 - Average temperature
22 - Median temperature
20 - Mode (most frequently occurring temperature observation)
13 - Lowest 5 and 6 am on the 8th and 5 am on the 9th
35 - Highest at 2,3, and 4 pm on the 6th

67 of the 232 hourly observations (29 per cent) were in the teens.
121 of the 232 hourly observations (52 per cent) were in the twenties.
44 of the 232 hourly observations (19 per cent) were in the thirties.

There were two long streaks of consecutive hours below freezing during this cold wave:

114 hours at or below freezing between January 1 at 7 p.m. and January 6 at 12 Noon.

89 hours at or below freezing between January 7 at 6 p.m. and January 11 at 10 a.m.

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