Sept 2019 Observations

[Iceagewhereartthou]

ATL had 23 days it reached 90 or higher with an astounding 15 that reached 95 or higher. It averaged 82.4 or 8.9 degrees above average. There were only 7 days the temperature dropped below 70! The overall low for the month was just 62. 13 days averaged 10 or more degrees above average with 5 more being plus 9. Let all that sink in a moment!

[donsutherland1]

Atlanta concluded its second warmest September on record with a mean temperature of 82.4°. Only September 1925 with a mean temperature of 83.0° was warmer. During the September 16-30 period, Atlanta had a mean temperature of 80.6°. Only 1925 was warmer during the second half of September with a mean temperature of 80.7°. During September 2019, Atlanta reached 90° or above on 23 days, which tied the record set in 1925. During the September 16-30 period, there were 10 days with temperatures of 90° or above, which broke the previous record of 9, which was set in 1921 and tied in 1925 and 1931.

Atlanta has been experiencing an increasing frequency of 90° or warmer days during September. The last 10 years (2010-19) averaged 9.3 days with high temperatures of 90° or above. That is the highest figure on record. The pre-2000 record was 8.0 days during the 1936-45 period. The 30-year moving average (1990-2019) is 5.1 days. That is below the record figure of 6.7 days, which was set during the 1925-54 period.

During the September 16-30 period, Atlanta has averaged 3.1 90° or warmer days over the latest 10-year period. That is the highest figure on record. The pre-2000 record was 2.6 days, which was set during the 1924-33 period and tied during the 1925-34 period. The 30-year moving average is currently 1.5 days. The existing record is 2.0 days, which was set during the 1920-49 period and tied during the 1921-50 period.

Overall, the average September temperature has been increasing. The current 10- and 30-year periods are the warmest on record for both the month as a whole and for the September 16-30 period.

September Mean Temperature:
2010-19: 76.5° (warmest 10-year period on record); pre-2000 record: 75.4°, 1925-34
1990-2019: 74.7° (warmest 30-year period on record); pre-2000 record: 74.3°, 1919-48

September 16-30 Mean Temperature:
2010-19: 75.2° (warmest 10-year period on record); pre-2000 record: 73.1°, 1925-34
1990-2019: 72.0° (warmest 30-year period on record); pre-2000 record: 71.8°, 1929-58 and 1930-59

Record Temperatures for September 2019:

Record High Minimum Temperatures:
9/24 73° (tied record set in 1931 and tied in 1980)
9/26 73° (old record: 72°, 2018)
9/27 76° (old record: 73°, 1911) *** highest minimum temperature this late in the season***
9/29 73° (old record: 72°, 1904)
9/30 74° (tied record set in 1904)

Record High Maximum Temperatures:
9/10 98° (old record: 97°, 1925)
9/11 96° (tied record set in 2010)
9/12 99° (old record: 94°, 1900)
9/13 98° (old record: 95°, 1991)
9/17 98° (old record: 97°, 1927)
9/25 93° (tied record set in 2010)
9/26 95° (old record: 90°, 1911 and 1986)
9/27 97° (old record: 93°, 1954) ***highest maximum temperature this late in the season***
9/29 93° (old record: 92°, 1904 and 1941)
9/30 96° (old record: 91°, 1941) ***highest maximum temperature this late in the season***

Finally, through September 30, Atlanta has had 87 days on which the temperature reached 90° or higher. Only 1980 (90 days), 2011 (90 days), and 2016 (88 days) had more.

 

[donsutherland1]

Additional temperature data from Georgia:

September 2019 Mean Temperatures:
Athens: 79.3° (6th)
Atlanta: 82.4° (2nd)
Augusta: 80.2° (5th)
Columbus: 83.3° (3rd)
Macon: 81.1° (4th)
Savannah: 81.3° (5th)

September 16-30, 2019 Mean Temperatures:
Athens: 77.3° (7th)
Atlanta: 80.6° (2nd)
Augusta: 78.2° (12th)
Columbus: 82.4° (3rd)
Macon: 79.9° (4th)
Savannah: 79.9° (7th)

Start of Records:
Athens: 1902
Atlanta: 1879
Augusta: 1874
Columbus: 1902
Macon: 1897
Savannah: 1874

[Solak]

3 hours ago, calculus1 said:

Picked up 0.22 inch of rainfall yesterday evening from a storm on a due south heading. That is the only measurable rainfall for the entire month of September IMBY. It is so dry...

Sent from my moto e5 supra using Tapatalk
 

Grabbed what was left over from a similar South moving shower  - 0.04". It dissipated while passing through this area.

[LithiaWx]

Oh my 

[LithiaWx]

3 hours ago, donsutherland1 said:

Atlanta concluded its second warmest September on record with a mean temperature of 82.4°. Only September 1925 with a mean temperature of 83.0° was warmer. During the September 16-30 period, Atlanta had a mean temperature of 80.6°. Only 1925 was warmer during the second half of September with a mean temperature of 80.7°. During September 2019, Atlanta reached 90° or above on 23 days, which tied the record set in 1925. During the September 16-30 period, there were 10 days with temperatures of 90° or above, which broke the previous record of 9, which was set in 1921 and tied in 1925 and 1931.

Atlanta has been experiencing an increasing frequency of 90° or warmer days. The last 10 years (2010-19) averaged 9.3 days with high temperatures of 90° or above. That is the highest figure on record. The pre-2000 record was 8.0 days during the 1936-45 period. The 30-year moving average (1990-2019) is 5.1 days. That is below the record figure of 6.7 days, which was set during the 1925-54 period.

During the September 16-30 period, Atlanta has averaged 3.1 90° or warmer days over the latest 10-year period. That is the highest figure on record. The pre-2000 record was 2.6 days, which was set during the 1924-33 period and tied during the 1925-34 period. The 30-year moving average is currently 1.5 days. The existing record is 2.0 days, which was set during the 1920-49 period and tied during the 1921-50 period.

Overall, the average September temperature has been increasing. The current 10- and 30-year periods are the warmest on record for both the month as a whole and for the September 16-30 period.

September Mean Temperature:
2010-19: 76.5° (warmest 10-year period on record); pre-2000 record: 75.4°, 1925-34
1990-2019: 74.7° (warmest 30-year period on record); pre-2000 record: 74.3°, 1919-48

September 16-30 Mean Temperature:
2010-19: 75.2° (warmest 10-year period on record); pre-2000 record: 73.1°, 1925-34
1990-2019: 72.0° (warmest 30-year period on record); pre-2000 record: 71.8°, 1929-58 and 1930-59

Record Temperatures for September 2019:

Record High Minimum Temperatures:
9/24 73° (tied record set in 1931 and tied in 1980)
9/26 73° (old record: 72°, 2018)
9/27 76° (old record: 73°, 1911) *** highest minimum temperature this late in the season***
9/29 73° (old record: 72°, 1904)
9/30 74° (tied record set in 1904)

Record High Maximum Temperatures:
9/10 98° (old record: 97°, 1925)
9/11 96° (tied record set in 2010)
9/12 99° (old record: 94°, 1900)
9/13 98° (old record: 95°, 1991)
9/17 98° (old record: 97°, 1927)
9/25 93° (tied record set in 2010)
9/26 95° (old record: 90°, 1911 and 1986)
9/27 97° (old record: 93°, 1954) ***highest maximum temperature this late in the season***
9/29 93° (old record: 92°, 1904 and 1941)
9/30 96° (old record: 91°, 1941) ***highest maximum temperature this late in the season***

Finally, through September 30, Atlanta has had 87 days on which the temperature reached 90° or higher. Only 1980 (90 days), 2011 (90 days), and 2016 (88 days) had more.

 

Looks like by Friday we are at 91 days of 90 or higher temps which will break that nasty record.  Wow 

[yotaman]

Much drier today than yesterday. Currently a some what comfortable 83/68.

[Fantom X]

5 hours ago, donsutherland1 said:

Atlanta concluded its second warmest September on record with a mean temperature of 82.4°. Only September 1925 with a mean temperature of 83.0° was warmer. During the September 16-30 period, Atlanta had a mean temperature of 80.6°. Only 1925 was warmer during the second half of September with a mean temperature of 80.7°. During September 2019, Atlanta reached 90° or above on 23 days, which tied the record set in 1925. During the September 16-30 period, there were 10 days with temperatures of 90° or above, which broke the previous record of 9, which was set in 1921 and tied in 1925 and 1931.

Atlanta has been experiencing an increasing frequency of 90° or warmer days. The last 10 years (2010-19) averaged 9.3 days with high temperatures of 90° or above. That is the highest figure on record. The pre-2000 record was 8.0 days during the 1936-45 period. The 30-year moving average (1990-2019) is 5.1 days. That is below the record figure of 6.7 days, which was set during the 1925-54 period.

During the September 16-30 period, Atlanta has averaged 3.1 90° or warmer days over the latest 10-year period. That is the highest figure on record. The pre-2000 record was 2.6 days, which was set during the 1924-33 period and tied during the 1925-34 period. The 30-year moving average is currently 1.5 days. The existing record is 2.0 days, which was set during the 1920-49 period and tied during the 1921-50 period.

Overall, the average September temperature has been increasing. The current 10- and 30-year periods are the warmest on record for both the month as a whole and for the September 16-30 period.

September Mean Temperature:
2010-19: 76.5° (warmest 10-year period on record); pre-2000 record: 75.4°, 1925-34
1990-2019: 74.7° (warmest 30-year period on record); pre-2000 record: 74.3°, 1919-48

September 16-30 Mean Temperature:
2010-19: 75.2° (warmest 10-year period on record); pre-2000 record: 73.1°, 1925-34
1990-2019: 72.0° (warmest 30-year period on record); pre-2000 record: 71.8°, 1929-58 and 1930-59

Record Temperatures for September 2019:

Record High Minimum Temperatures:
9/24 73° (tied record set in 1931 and tied in 1980)
9/26 73° (old record: 72°, 2018)
9/27 76° (old record: 73°, 1911) *** highest minimum temperature this late in the season***
9/29 73° (old record: 72°, 1904)
9/30 74° (tied record set in 1904)

Record High Maximum Temperatures:
9/10 98° (old record: 97°, 1925)
9/11 96° (tied record set in 2010)
9/12 99° (old record: 94°, 1900)
9/13 98° (old record: 95°, 1991)
9/17 98° (old record: 97°, 1927)
9/25 93° (tied record set in 2010)
9/26 95° (old record: 90°, 1911 and 1986)
9/27 97° (old record: 93°, 1954) ***highest maximum temperature this late in the season***
9/29 93° (old record: 92°, 1904 and 1941)
9/30 96° (old record: 91°, 1941) ***highest maximum temperature this late in the season***

Finally, through September 30, Atlanta has had 87 days on which the temperature reached 90° or higher. Only 1980 (90 days), 2011 (90 days), and 2016 (88 days) had more.

 

Great info Don.  Would you be able to extract for CLT?

[LithiaWx]

Temps in ATL were +8.9 above average for September.  

[donsutherland1]

46 minutes ago, Fantom X said:

Great info Don.  Would you be able to extract for CLT?

I will get that info. and post it a little later today.

[donsutherland1]

Charlotte concluded its fourth warmest September on record with a mean temperature of 78.7°. Only 1921 (79.2°), 1925 (80.5°), and 2018 (78.8°) were warmer. During the September 16-30 period, Charlotte had a mean temperature of 76.8°, which was tied with 1895 and 1921 for the third warmest such period. The record is 77.1°, which was set during September 16-30, 1925 and tied during September 16-30, 2018.

During September 2019, Charlotte reached 90° or above on 21 days, which tied the record set in 1925. During the September 16-30 period, there were 9 days with temperatures of 90° or above. That tied the record, which was set in 1895 and tied in 1931 and 2010.

Charlotte has experienced a recent increase in the frequency of 90° or warmer days during September in recent years. The last 10 years (2010-19) averaged 8.8 days with high temperatures of 90° or above. That is the highest figure on record. The highest 10-year average prior to 2000 was 8.7 days during the 1925-34 period. The 30-year moving average (1990-2019) is 5.1 days. That is below the record figure of 6.8 days, which was set during the 1925-54 period.

During the September 16-30 period, Charlotte has averaged 2.7 90° or warmer days over the latest 10-year period. That is somewhat below the record of 3.0 days, which was set during the 1925-34 period. The 30-year moving average is currently 1.6 days. The existing record is 2.1 days, which was set during the 1925-54 period and tied during the 1926-55 period.

Overall, the average September temperature has been increasing. However, the current 10- and 30-year periods have not attained the warmth seen earlier in Charlotte’s climate record for month as a whole. The last 10 years were tied for the warmest 10-year period during September 16-30.

September Mean Temperature:
2010-19: 74.3°; Record: 74.8°, 1925-34
1990-2019: 72.7°; Record: 73.5°, 1918-47

September 16-30 Mean Temperature:
2010-19: 72.6° (tied with 1925-34)
1990-2019: 70.5; Record: 71.1°, 1919-48

Record Temperatures for September 2019:

Record High Minimum Temperatures:
9/5/ 74° (tied record set in 1880 and tied in 1921 and 1941)
9/13 73° (tied record set in 2018)
9/14 72° (tied record set in 1915 and tied in 1925, 1938, and 2018)

Record High Maximum Temperatures:
9/12 98° (old record: 95°, 1925)
9/26 95° (old record: 94°, 1961)
9/27 94° (old record: 93°, 1900)
9/29 96° (old record: 93°, 1941)
9/30 91° (tied record set in 1926)

Finally, through October 1, Charlotte has had 82 days on which the temperature reached 90° or higher. Only 1925 (85 days), 1954 (88 days), and 2010 (87 days) had more.

 

[NC_hailstorm]

Hot month but CLT wins the hottest spot on the planet again.

GSP  +7.1

HKY  +6.7

AVL  +7.2

RDU  +4.9

GSO  +6.2

CAE  +6.2

AND

CLT  +7.9

 

 

 

 

[Tarheel17]

2 hours ago, donsutherland1 said:

Charlotte concluded its fourth warmest September on record with a mean temperature of 78.7°. Only 1921 (79.2°), 1925 (80.5°), and 2018 (78.8°) were warmer.

 

Winning.

[Fantom X]

3 hours ago, donsutherland1 said:

Charlotte concluded its fourth warmest September on record with a mean temperature of 78.7°. Only 1921 (79.2°), 1925 (80.5°), and 2018 (78.8°) were warmer. During the September 16-30 period, Charlotte had a mean temperature of 76.8°, which was tied with 1895 and 1921 for the third warmest such period. The record is 77.1°, which was set during September 16-30, 1925 and tied during September 16-30, 2018.

During September 2019, Charlotte reached 90° or above on 21 days, which tied the record set in 1925. During the September 16-30 period, there were 9 days with temperatures of 90° or above. That tied the record, which was set in 1895 and tied in 1931 and 2010.

Charlotte has experienced a recent increase in the frequency of 90° or warmer days during September in recent years. The last 10 years (2010-19) averaged 8.8 days with high temperatures of 90° or above. That is the highest figure on record. The highest 10-year average prior to 2000 was 8.7 days during the 1925-34 period. The 30-year moving average (1990-2019) is 5.1 days. That is below the record figure of 6.8 days, which was set during the 1925-54 period.

During the September 16-30 period, Charlotte has averaged 2.7 90° or warmer days over the latest 10-year period. That is somewhat below the record of 3.0 days, which was set during the 1925-34 period. The 30-year moving average is currently 1.6 days. The existing record is 2.1 days, which was set during the 1925-54 period and tied during the 1926-55 period.

Overall, the average September temperature has been increasing. However, the current 10- and 30-year periods have not attained the warmth seen earlier in Charlotte’s climate record for month as a whole. The last 10 years were tied for the warmest 10-year period during September 16-30.

September Mean Temperature:
2010-19: 74.3°; Record: 74.8°, 1925-34
1990-2019: 72.7°; Record: 73.5°, 1918-47

September 16-30 Mean Temperature:
2010-19: 72.6° (tied with 1925-34)
1990-2019: 70.5; Record: 71.1°, 1919-48

Record Temperatures for September 2019:

Record High Minimum Temperatures:
9/5/ 74° (tied record set in 1880 and tied in 1921 and 1941)
9/13 73° (tied record set in 2018)
9/14 72° (tied record set in 1915 and tied in 1925, 1938, and 2018)

Record High Maximum Temperatures:
9/12 98° (old record: 95°, 1925)
9/26 95° (old record: 94°, 1961)
9/27 94° (old record: 93°, 1900)
9/29 96° (old record: 93°, 1941)
9/30 91° (tied record set in 1926)

Finally, through October 1, Charlotte has had 82 days on which the temperature reached 90° or higher. Only 1925 (85 days), 1954 (88 days), and 2010 (87 days) had more.

 

Thank you Don. You are a statistical master