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

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254
CDUS44 KMRX 182120
CLICHA

CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
520 PM EDT TUE AUG 18 2026

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

...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR AUGUST 18 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1879 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         92   3:59 PM 103    1936  90      2       95
  MINIMUM         74   6:36 AM  57    1889  70      4       72
                                      1958
  AVERAGE         83                        80      3       84

PRECIPITATION (IN)
  TODAY            0.00          1.61 1956   0.12  -0.12     0.00
  MONTH TO DATE    3.13                      2.21   0.92     7.22
  SINCE JUN 1     10.71                     11.47  -0.76    14.06
  SINCE JAN 1     29.94                     35.67  -5.73    45.00

SNOWFALL (IN)
  TODAY           MM                         0.0   MM        0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      0                         1     -1        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           18                        15      3       19
  MONTH TO DATE  322                       283     39      250
  SINCE JUN 1   1253                      1145    108     1232
  SINCE JAN 1   1601                      1391    210     1500
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    13   HIGHEST WIND DIRECTION     W (250)
  HIGHEST GUST SPEED    18   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     3.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97           3:00 AM
 LOWEST     44           4:00 PM
 AVERAGE    71

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


THE CHATTANOOGA AIRPORT CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90       103      1936
 MINIMUM TEMPERATURE (F)   70        61      1943
                                             1992


SUNRISE AND SUNSET
AUGUST 18 2026........SUNRISE   7:03 AM EDT   SUNSET   8:26 PM EDT
AUGUST 19 2026........SUNRISE   7:04 AM EDT   SUNSET   8:24 PM EDT


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




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