


Climatological Report (Monthly)
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
259 CXUS54 KMRX 021348 CLMCHA CLIMATE REPORT NATIONAL WEATHER SERVICE MORRISTOWN, TN 948 AM EDT THU OCT 02 2025 ................................... ...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1879 TO 2025 WEATHER OBSERVED NORMAL DEPART VALUE DATE(S) VALUE FROM NORMAL ................................................ TEMPERATURE (F) HIGHEST 92 09/05 LOWEST 58 09/13 AVG. MAXIMUM 85.9 84.3 1.6 AVG. MINIMUM 64.1 63.6 0.5 MEAN 75.0 73.9 1.1 DAYS MAX >= 90 4 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 14.18 1977 MINIMUM 0.04 1919 TOTALS 1.70 4.23 -2.53 DAYS >= .01 10 DAYS >= .10 5 DAYS >= .50 1 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.62 09/06 TO 09/06 SNOWFALL (INCHES) TOTALS 0.0 0.0 0.0 SINCE 7/1 0.0 SNOWDEPTH AVG. 0 DAYS >= TRACE 0 GREATEST SNOW DEPTH 0 DEGREE DAYS HEATING TOTAL 0 7 -7 SINCE 7/1 0 5 -5 COOLING TOTAL 306 276 30 SINCE 1/1 1951 1849 102 ................................................ WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 7 RAIN 3 SNOW 0 FOG 13 FOG W/VIS <= 1/4 MILE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$