September 2018 Observations

[yotaman]

Currently 81/66

Stats for the month:

Highest temp 93

Lowest temp 65

Highest dew point 81

Lowest dew point 64

Rainfall 11.92 with most of that falling during Florence.

[donsutherland1]

Details concerning Tampa's historically warm September follow:

Tampa averaged 85.9° during September. That makes September that city's warmest month ever. The previous record high monthly mean temperature was 85.5°, which was established in June 1998.

Summary data for September 2018:

9/1-15:
Average high: 92.0° (6th highest)
Average low: 78.2° (old record: 77.6°, 1979)
Average mean: 85.1° (old record: 84.3°, 2008)

9/16-30:
Average high: 94.5° (old record: 92.3°, 1972)
Average low: 78.9° (old record: 77.2°, 2016)
Average mean: 86.7° (old record: 84.1°, 2017)

September:
Average high: 93.2° (old record: 92.4°, 1990)
Average low: 78.5° (old record: 77.0°, 2016)
Average mean: 85.9° (old record: 83.8°, 2016)

Days with high temperatures of 90° or above: 29 (old record: 27, 1921, 1925, 1958)

Days with minimum temperatures of 80° or above: 6 (old record: 3, 2015)

Consecutive days with minimum temperatures of 80° or above: 5, 9/15-19/2018 (old record: 2, 9/20-21/1942 and 9/10-11/2015)

Daily Records:

Record High Temperatures:
9/12 95°
9/20 96°
9/22 94° (tied)
9/24 95°
9/25 95°
9/29 97° All-time September record
9/30 97° All-time September record

Number of days in September with record-breaking/record-tying high temperatures (2000-2018): 13 (43%)

Record High Minimum Temperatures:
9/4 80°
9/12 78° (tied)
9/15 83°
9/16 84° All-time September record
9/17 82°
9/18 82°
9/19 81°
9/23 78° tied
9/25 79°
9/26 78° tied
9/28 78° tied
9/29 79°
9/30 78° tied

Number of days in September with record-breaking/record-tying high minimum temperatures (2000-2018): 23 (77%)

[BK Rambler]

KATL closed out with the second warmest September on record with an average temp of 81 (+7.5) - only 1925 was warmer.  The lowest it got this month was 69!  Here in the northern suburbs the lowest it got was 65.  Only 1.30" of rain too.

Some other cities for Sept 2018:

AVL; - warmest on record

CAE - second warmest (1925)

GSP - second warmest (1925)

CLT - third warmest (1925, 1921)

RDU - fourth warmest (1921, 1933, 2010)

GSO - fourth warmest (1921, 1925, 2016)

 

 

[Powerball]

What were the winters of 1921-1922 and 1925-1926 like?

They seem to be the common denominators with all of these records being broken.

[BK Rambler]

29 minutes ago, Powerball said:

What were the winters of 1921-1922 and 1925-1926 like?

They seem to be the common denominatord with all of these records being broken.

For ATL 21-22 was warm Dec, avg Jan, warm Feb and avg Mar; 25-26 was a bookend with cold Dec and Mar with normal Jan - Feb.  Unfortunately my records database for snowfall in ATL only goes back to 1928.

[Isopycnic]

[Solak]

September summary from the NC Climate Office.

http://climate.ncsu.edu/climateblog?id=267