249
CDUS44 KMRX 210833
CLITRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
333 AM EST SUN DEC 21 2025
...............................
..THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR DECEMBER 20 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 58 3:12 PM 66 1978 48 10 43
1987
MINIMUM 21 6:54 AM 5 2004 29 -8 32
AVERAGE 40 39 1 38
PRECIPITATION (IN)
YESTERDAY 0.00 1.29 1946 0.12 -0.12 0.03
MONTH TO DATE 1.84 2.53 -0.69 1.85
SINCE DEC 1 1.84 2.53 -0.69 1.85
SINCE JAN 1 44.28 42.74 1.54 41.82
SNOWFALL (IN)
YESTERDAY 0.0 0.1 -0.1 T
MONTH TO DATE 0.9 1.0 -0.1 1.1
SINCE DEC 1 0.9 1.0 -0.1 1.1
SINCE JUL 1 1.4 1.3 0.1 1.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 26 -1 27
MONTH TO DATE 578 494 84 497
SINCE DEC 1 578 494 84 497
SINCE JUL 1 1388 1347 41 1124
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
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 7 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 10 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 1.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 8:00 AM
LOWEST 26 2:00 PM
AVERAGE 59
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THE TRI-CITIES AIRPORT CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 48 74 2013
MINIMUM TEMPERATURE (F) 29 7 1963
1996
SUNRISE AND SUNSET
DECEMBER 21 2025......SUNRISE 7:38 AM EST SUNSET 5:18 PM EST
DECEMBER 22 2025......SUNRISE 7:38 AM EST SUNSET 5:18 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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