....dry conditions and above normal temperatures for September across eastern Kentucky...
Both Jackson and London saw dry conditions during September 2014. Last month...the Jackson weather office was over one inch below normal...while the London Corbin Airport was nearly two inches drier. In fact...it was the ninth driest September at London. Also of interest...Jackson had 14 consecutive days without measurable precipitation. On the temperature side of the fence...Jackson and London finished up last month above normal. The Jackson weather office was a few tenths of a degree above normal...while the London Corbin Airport was over an degree and a half warmer.
The National Weather Service office near Jackson finished September 2014 with an average temperature of 68.4 degrees...which is 0.3 degrees above the normal of 68.1 degrees. The average daily high was 77.2 degrees...and the average daily low was 59.6 degrees. The highest temperature for September was 87 degrees and occurred on the 1st and the 6th. The lowest temperature from last month was 48 degrees on the 23rd. No maximum or minimum temperature records were set or tied last month. A minimum high record of 67 degrees was set on the 12th. One minimum high record was tied...with a reading of 64 degrees on the 13th.
The Jackson weather office received 2.35 inches of precipitation in September 2014...which is 1.11 inches below normal. There were nine days when a hundredth of an inch or more of precipitation was recorded...and three days when a tenth of an inch or more fell. There were two days when at least a half an inch of rain was received...and one day with more than an inch. The day of the 4th netted 1.02 inches of rain...which was the greatest daily amount for September...as well as the greatest in a 24 hour period. No precipitation records were set or tied. The annual precipitation total is now 40.65 inches...which is 3.64 inches above normal. As of September 30th...Jackson has a current streak of 14 days without measurable precipitation. This streak is the 15th longest dry spell at Jackson...and longest since October of 2011. The streak will likely extend one or possibly two more days before rain moves into the region.
Thunder was heard on five days at the Jackson weather office...which is above the normal of 3.0 days for September. There were 18 days with fog...seven of which featured dense fog. September normally averages 6.3 days of dense fog. The average wind speed for September was 1.2 mph...and the highest wind gust of 36 mph was recorded on September 2nd. The mean wind speed for September is typically 4.0 mph.
Jackson recorded 33 heating degree days during September 2014...which is 17 below normal. The seasonal heating degree day total is now 36...which is 16 heating degree days below normal for the season. Jackson accumulated 145 cooling degree days last month...which is 2 above normal. The cooling degree day seasonal total is now 1146...which is 2 above normal.
At the London Corbin Airport...the average temperature was 69.9 degrees...which is 1.6 degrees above the normal of 68.3 degrees for September. The average daily high was 79.7 degrees...and the average daily low was 60.1 degrees. The highest temperature from last month was 91 degrees and occurred on the 1st and 2nd. The lowest temperature for September 2014 was 46 degrees on the 23rd. No maximum or minimum temperature records were set or tied at London last month. There was one minimum high record...69 degrees on the 12th. There was also one maximum low temperature record set last month...70 degrees on the 3rd. Three maximum low temperature records were tied in September 2014...71 degrees on the 1st...70 degrees on the 2nd and 69 degrees on the 11th.
The London Corbin Airport recorded 1.39 inches of precipitation in September 2014...which is 1.98 inches below normal. Last month was the ninth driest September at London. There were nine days when a hundredth of an inch or more fell...and four days when a tenth of an inch or more of rain was recorded. London had no days with at least a half an inch. The greatest daily amount was 0.49 inches on the 11th. The greatest amount of precipitation received in a 24 hour period was 0.50 inches from the 11th through the 12th. No precipitation records were set at London last month.
London had three days with thunder last month. Also...there were 20 days with fog...and five days with dense fog. The average wind speed for September 2014 was 3.7 mph...with the highest wind gust of 28 mph recorded on the 6th.
There were 18 heating degree days at London last month...which is 28 below normal. Those were the first heating degree days of the season...thus the seasonal total is 18...29 heating degree days below normal. London recorded 173 cooling degree days last month...which is 30 above normal. The seasonal cooling degree day total is missing due to a two day power outage at London in June.
Weather records at the National Weather Service office near Jackson Kentucky date back to January 1st 1981...while climate records for the London Corbin Airport began on the 11th of November 1954.