The Unusual July Weather of 2014

 

It was an unusual July in Alabama temperature-wise, with record low temperatures occurring at many official record sites in Central Alabama. The first episode of record-setting low temperatures occurred early in the month, with a second during mid-month as unseasonably strong cold fronts brought cool air masses rarely seen in July into Central Alabama.  The third episode occurred late July as another cold front provided an unseasonably cool air mass to the area, resulting in record lows areawide (see the table below). Montgomery even tied the all-time monthly low with a reading of 59 degrees.

  

 

Station

July 30th Record Low

Actual Morning Low

All-time Monthly Low

Birmingham

61 (1994)

57

54 (7/6 & 7/7/1972, 7/1/1950)

Montgomery

66 (1889)

59*

59 (7/20/2009)

Anniston

61 (1903)

54

51 (7/1/1950)

Tuscaloosa

61 (1994)

56

54 (7/1/1950)

 

* Tied All-Time Record Low for the month of July

 

Not only have these July cold fronts brought unusually cool nights, they have helped temper daytime maximum temperatures.  We have to go back to July, 2012, to find the last time high temperatures reached 100 degrees or higher in Central  Alabama.

 

Station

Last 100 Degree Occurrence

Latest 100 Degree Occurrence

Birmingham

July 1, 2012 (104 Degrees)

September 25,1925 (100 Degrees)

Montgomery

July 30, 2012 (102 Degrees)

October 6, 1954 (100 Degrees)

Anniston

July 1, 2012 (104 Degrees)

September 6, 1954 (101 Degrees)

Tuscaloosa

July 6, 2012 (102 Degrees)

September 20, 2010 (100 Degrees)

 

As you can see from the records above, 100 degree temperatures have occurred in Central Alabama as late in the year as the first part of October.  So, what are the odds that we might still reach the 100 degree mark this summer?

 

The longer range outlooks for August and September indicate that temperatures will average above normal.  However, normal high temperatures from August heading into September generally average in the lower 90s across Central Alabama.  Additionally, the forecast upper air pattern during the next one to two weeks does not currently indicate that there will be extreme heat.  Combining all of this information together makes it hard to say with any certainty that the odds favor Central Alabama locations reaching 100 degrees this summer.

 

A few more additional warm weather facts for Central Alabama: 

  • Based on station records, for any one location there is a slightly better than 50 percent chance that the maximum high temperature for any particular year will not reach 100 degrees.
  • The official record high temperature for Alabama is 112 degrees, set in Centreville on September 5, 1925.
  • The most consecutive days of high temperature of 100 degrees or more include: 

 

Station

Consecutive Days of 100 Degrees or More (Days, Year)

Birmingham

10 Days (Aug. 7 - Aug. 16, 2007)

Montgomery

12 Days (Aug. 6 - Aug. 17, 2007)

Anniston

10 Days (Aug. 7 - Aug. 16, 2007)

Tuscaloosa

11 Days (Aug. 7 - Aug. 17, 2007)

 

  • The most number of days of high temperatures of 100 degrees or more in a calendar year:  

Station

Most 100 Degree Days (Calendar Year)

Birmingham

15 Days (1925)

Montgomery

26 Days (1954)

Anniston

17 Days (1954)

Tuscaloosa

33 Days (1954)


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