640
CDUS44 KMRX 182139
CLITRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
539 PM EDT THU SEP 18 2025
...............................
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 18 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
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)
TODAY
MAXIMUM 83 3:59 PM 93 1954 80 3 81
MINIMUM 53 6:15 AM 39 1943 56 -3 62
AVERAGE 68 68 0 72
PRECIPITATION (IN)
TODAY 0.00 2.00 2012 0.09 -0.09 0.00
MONTH TO DATE 2.22 1.70 0.52 0.91
SINCE SEP 1 2.22 1.70 0.52 0.91
SINCE JAN 1 36.84 33.41 3.43 31.33
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 MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 17 6 11 8
SINCE SEP 1 17 6 11 8
SINCE JUL 1 24 7 17 9
COOLING
TODAY 3 4 -1 7
MONTH TO DATE 29 108 -79 85
SINCE SEP 1 29 108 -79 85
SINCE JAN 1 1076 1050 26 1213
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 1.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 40 3:00 PM
AVERAGE 70
......................................................
THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 92 1954
MINIMUM TEMPERATURE (F) 55 41 1984
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 7:15 AM EDT SUNSET 7:32 PM EDT
SEPTEMBER 19 2025.....SUNRISE 7:15 AM EDT SUNSET 7:30 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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