267
CDUS44 KMRX 120807
CLITRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
407 AM EDT FRI SEP 12 2025
...............................
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 11 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1937 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 80 3:26 PM 93 2019 82 -2 87
MINIMUM 49 6:27 AM 42 1969 58 -9 50
1993
AVERAGE 65 70 -5 69
PRECIPITATION (IN)
YESTERDAY 0.00 1.15 1989 0.09 -0.09 0.00
MONTH TO DATE 2.22 1.01 1.21 0.02
SINCE SEP 1 2.22 1.01 1.21 0.02
SINCE JAN 1 36.84 32.72 4.12 30.44
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 MM
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 17 0 17 8
SINCE SEP 1 17 0 17 8
SINCE JUL 1 24 1 23 9
COOLING
YESTERDAY 0 6 -6 4
MONTH TO DATE 11 75 -64 47
SINCE SEP 1 11 75 -64 47
SINCE JAN 1 1058 1017 41 1175
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 1.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 45 2:00 PM
AVERAGE 73
......................................................
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 94 2019
MINIMUM TEMPERATURE (F) 58 42 1940
1993
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 7:10 AM EDT SUNSET 7:41 PM EDT
SEPTEMBER 13 2025.....SUNRISE 7:11 AM EDT SUNSET 7:39 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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