452
CDUS44 KMRX 190828
CLITRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
328 AM EST FRI DEC 19 2025
...............................
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR DECEMBER 18 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 61 9:47 PM 73 1990 49 12 59
MINIMUM 28 8:06 AM 4 1953 29 -1 44
AVERAGE 45 39 6 52
PRECIPITATION (IN)
YESTERDAY T 1.27 2009 0.12 -0.12 0.33
MONTH TO DATE 1.49 2.30 -0.81 1.82
SINCE DEC 1 1.49 2.30 -0.81 1.82
SINCE JAN 1 43.93 42.51 1.42 41.79
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1 0.0
MONTH TO DATE 0.9 0.9 -0.0 1.1
SINCE DEC 1 0.9 0.9 -0.0 1.1
SINCE JUL 1 1.4 1.2 0.2 1.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 20 26 -6 13
MONTH TO DATE 533 442 91 446
SINCE DEC 1 533 442 91 446
SINCE JUL 1 1343 1295 48 1073
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 1154 1104 50 1348
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88 8:00 AM
LOWEST 50 12:00 PM
AVERAGE 69
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THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 49 68 1939
MINIMUM TEMPERATURE (F) 29 4 1963
SUNRISE AND SUNSET
DECEMBER 19 2025......SUNRISE 7:37 AM EST SUNSET 5:17 PM EST
DECEMBER 20 2025......SUNRISE 7:37 AM EST SUNSET 5:17 PM EST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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