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

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486
CDUS44 KMRX 180821
CLICHA

CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
421 AM EDT MON AUG 18 2025

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

...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR AUGUST 17 2025...

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


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         93   2:06 PM 102    1936  90      3       94
  MINIMUM         72   6:29 AM  58    1889  70      2       72
  AVERAGE         83                        80      3       83

PRECIPITATION (IN)
  YESTERDAY        0.00          2.68 2015   0.11  -0.11     0.01
  MONTH TO DATE    7.22                      2.09   5.13     0.13
  SINCE JUN 1     14.06                     11.35   2.71     5.07
  SINCE JAN 1     45.00                     35.55   9.45    28.90

SNOWFALL (IN)
  YESTERDAY        0.0                       0.0    0.0      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       0

DEGREE DAYS
 HEATING
  YESTERDAY        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
  YESTERDAY       18                        15      3       18
  MONTH TO DATE  231                       268    -37      303
  SINCE JUN 1   1213                      1130     83     1337
  SINCE JAN 1   1481                      1376    105     1676
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    15   HIGHEST WIND DIRECTION     W (260)
  HIGHEST GUST SPEED    19   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED     3.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.4


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    94           1:00 AM
 LOWEST     54           6:00 PM
 AVERAGE    74

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


THE CHATTANOOGA AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   90       103      1936
 MINIMUM TEMPERATURE (F)   70        57      1889
                                             1958


SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE   7:03 AM EDT   SUNSET   8:25 PM EDT
AUGUST 19 2025........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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