It has been a mild start to the month of December for the Tennessee Valley & the mild air looks to continue. In fact, 69 percent of days have been above average and 31 percent have been below average (Dec. 1-13). The warmest day of the month was December 3 when the high was 75 degrees. The coolest high was 45 degrees on December 7.
If the month were to end on December 13, it would be the 11th warmest on record. The average temperature so far has been 51.8 degrees. The warmest December ever was 1998, when the temperature was 56.3 degrees and the coldest was in 1937.
Temperature trend through the end of the week
As we head through the remainder of this work week, we will continue to see temperatures rise. This will be thanks to a continuous southerly wind flow. The southerly wind will usher in some warm air and moisture into the region. This warm air will bump temperatures into the 70s, nearing record warmth for Thursday and Friday. Cloud cover will slowly begin to increase thanks to the increase in moisture in the upper atmosphere.
What can we expect the next two weeks?
Heading towards the end of December, the Climate Prediction Center is forecasting above-average temperatures. The above photos show that northern Alabama has a 40 to 60 percent chance of seeing above-average temperatures between December 19-27.
The average high temperature during the 6-10 day outlook (Dec. 19-23) is 53.8 degrees and the average high temperature during the 8-14 day outlook (Dec. 21-27) is 53.3 degrees. These two maps show that during these time periods we have a 40 to 60 percent chance to see temperatures at or above 53 degrees.