Climatological Report (Daily)
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
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CDUS44 KMRX 212116
CLICHA
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
516 PM EDT SUN SEP 21 2025
...................................
...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 21 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 85 11:29 AM 98 1955 83 2 97
MINIMUM 66 6:36 AM 44 1956 62 4 65
AVERAGE 76 72 4 81
PRECIPITATION (IN)
TODAY 0.01 3.37 2009 0.14 -0.13 0.00
MONTH TO DATE 0.74 2.88 -2.14 0.25
SINCE SEP 1 0.74 2.88 -2.14 0.25
SINCE JAN 1 46.57 40.01 6.56 29.18
SNOWFALL (IN)
TODAY 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
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 11 8 3 16
MONTH TO DATE 205 219 -14 247
SINCE SEP 1 205 219 -14 247
SINCE JAN 1 1850 1792 58 2141
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION SE (130)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION SE (130)
AVERAGE WIND SPEED 2.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 3:00 AM
LOWEST 55 11:00 AM
AVERAGE 73
..........................................................
THE CHATTANOOGA AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 96 1940
1955
2024
MINIMUM TEMPERATURE (F) 62 41 1913
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 7:28 AM EDT SUNSET 7:39 PM EDT
SEPTEMBER 22 2025.....SUNRISE 7:29 AM EDT SUNSET 7:37 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$