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

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636
CDUS44 KMRX 130818
CLITRI

CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
418 AM EDT SUN SEP 13 2026

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

...THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 12 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1937 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         85  12:46 PM  94    2019  82      3       80
  MINIMUM         65   5:28 AM  42    1940  58      7       49
                                      1993
  AVERAGE         75                        70      5       65

PRECIPITATION (IN)
  YESTERDAY        0.24          1.10 1950   0.10   0.14     0.00
  MONTH TO DATE    0.40                      1.11  -0.71     2.22
  SINCE SEP 1      0.40                      1.11  -0.71     2.22
  SINCE JAN 1     29.91                     32.82  -2.91    36.84

SNOWFALL (IN)
  YESTERDAY        0.0                       0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 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       17
  SINCE SEP 1      0                         0      0       17
  SINCE JUL 1      0                         1     -1       24

 COOLING
  YESTERDAY       10                         5      5        0
  MONTH TO DATE  148                        80     68       11
  SINCE SEP 1    148                        80     68       11
  SINCE JAN 1   1272                      1022    250     1058
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    12   HIGHEST WIND DIRECTION     S (180)
  HIGHEST GUST SPEED    16   HIGHEST GUST DIRECTION     S (190)
  AVERAGE WIND SPEED     1.8


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           2:00 AM
 LOWEST     57          12:00 PM
 AVERAGE    79

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


THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   82        96      2019
 MINIMUM TEMPERATURE (F)   58        38      1940


SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE   7:10 AM EDT   SUNSET   7:40 PM EDT
SEPTEMBER 14 2026.....SUNRISE   7:11 AM EDT   SUNSET   7:38 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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