Climatological Report (Monthly)
Issued by NWS Knoxville/Tri Cities, TN

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259
CXUS54 KMRX 021348
CLMCHA

CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
948 AM EDT THU OCT 02 2025

...................................

...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1879 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
HIGHEST           92   09/05
LOWEST            58   09/13
AVG. MAXIMUM    85.9               84.3     1.6
AVG. MINIMUM    64.1               63.6     0.5
MEAN            75.0               73.9     1.1
DAYS MAX >= 90     4
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.18   1977
 MINIMUM        0.04   1919
TOTALS          1.70               4.23   -2.53
DAYS >= .01       10
DAYS >= .10        5
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.62   09/06 TO 09/06

SNOWFALL (INCHES)
TOTALS           0.0                0.0     0.0
SINCE 7/1        0.0
SNOWDEPTH AVG.     0
DAYS >= TRACE      0
GREATEST
 SNOW DEPTH        0

DEGREE DAYS
HEATING TOTAL      0                  7      -7
 SINCE 7/1         0                  5      -5
COOLING TOTAL    306                276      30
 SINCE 1/1      1951               1849     102
................................................


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              7     RAIN                       3
SNOW                      0     FOG                       13
FOG W/VIS <= 1/4 MILE     0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$