On Monday and Tuesday, the focus for heavy rain and severe thunderstorms will continue in the Plains and central Mississippi River Valley. Meanwhile, hot conditions and Critical Fire Weather looms over the Great Basin and Southwest U.S. through midweek. Read More >
Morristown, TN Area Seasonal Climate Summary
All normals are based on 30 year climate period from 1981 - 2010.
Chattanooga (CHA) period of record is from 1879 - Current.
Knoxville (TYS) period of record is from 1871 - Current.
Tri-Cities (TRI) period of record is from 1937 - Current.
Seasonal Averages/Totals and Normals
Chattanooga Seasonal Averages/Totals and Normals
094
CXUS54 KMRX 032045
CLSCHA
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
445 PM EDT TUE JUN 03 2025
...................................
...THE CHATTANOOGA AIRPORT CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1879 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 99 05/29/1941
LOW 2 03/07/1899
HIGHEST 88 04/04
05/17
LOWEST 28 03/03
AVG. MAXIMUM 74.6
AVG. MINIMUM 52.2
MEAN 63.4 61.6 1.8
DAYS MAX >= 90 0
DAYS MIN <= 32 3
PRECIPITATION (INCHES)
RECORD
MAXIMUM 29.50 1920
MINIMUM 5.84 1986
TOTALS 22.54 14.15 8.39
DAILY AVG. 0.25
DAYS >= .01 40
DAYS >= .10 31
DAYS >= .50 15
DAYS >= 1.00 9
GREATEST
24 HR. TOTAL 2.87 03/15 TO 03/16
SNOWFALL (INCHES)
TOTALS T
SINCE 7/1 4.1
SNOWDEPTH AVG. 0
DAYS >= TRACE 1
DAYS >= 1.0 0
GREATEST
SNOW DEPTH 0
DEGREE DAYS
HEATING TOTAL 394 555 -161
COOLING TOTAL 266 245 21
................................................
WIND (MPH)
HIGHEST WIND SPEED/DIRECTION 37/300 DATE 04/06
HIGHEST GUST SPEED/DIRECTION 51/320 DATE 04/06
SKY COVER
AVERAGE SKY COVER 0.56
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 22 MIXED PRECIP 0
HEAVY RAIN 19 RAIN 24
LIGHT RAIN 40 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 41 FOG W/VIS <= 1/4 MILE 5
HAZE 12
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Knoxville Seasonal Averages/Totals and Normals
095
CXUS54 KMRX 032045
CLSTYS
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
445 PM EDT TUE JUN 03 2025
...................................
...THE KNOXVILLE MCGHEE TYSON AIRPORT CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 96 05/31/2011
05/22/1941
LOW 1 03/03/1980
HIGHEST 87 04/04
LOWEST 24 03/03
AVG. MAXIMUM 72.4
AVG. MINIMUM 50.7
MEAN 61.6 59.4 2.2
DAYS MAX >= 90 0 1.1 -1.1
DAYS MIN <= 32 6 8.5 -2.5
PRECIPITATION (INCHES)
RECORD
MAXIMUM 23.93 1874
MINIMUM 5.80 1925
TOTALS 17.46 13.73 3.73
DAILY AVG. 0.19
DAYS >= .01 36
DAYS >= .10 29
DAYS >= .50 15
DAYS >= 1.00 5
GREATEST
24 HR. TOTAL 1.81 04/23 TO 04/24
SNOWFALL (INCHES)
TOTALS T
SINCE 7/1 7.5
SNOWDEPTH AVG. 0
DAYS >= TRACE 2
DAYS >= 1.0 0
GREATEST
SNOW DEPTH 0
DEGREE DAYS
HEATING TOTAL 512 703 -191
COOLING TOTAL 218 185 33
................................................
WIND (MPH)
HIGHEST WIND SPEED/DIRECTION 41/160 DATE 03/05
HIGHEST GUST SPEED/DIRECTION 59/180 DATE 03/05
SKY COVER
AVERAGE SKY COVER 0.64
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 22 MIXED PRECIP 0
HEAVY RAIN 17 RAIN 23
LIGHT RAIN 36 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 1
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 2 SLEET 1
FOG 35 FOG W/VIS <= 1/4 MILE 4
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Tri-Cities Seasonal Averages/Totals and Normals
096
CXUS54 KMRX 032045
CLSTRI
CLIMATE REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
445 PM EDT TUE JUN 03 2025
...................................
...THE TRI-CITIES AIRPORT CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2025 TO 5/31/2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1937 TO 2025
WEATHER OBSERVED NORMAL DEPART
VALUE DATE(S) VALUE FROM
NORMAL
................................................
TEMPERATURE (F)
RECORD
HIGH 94 05/31/2011
05/22/1941
LOW -2 03/03/1980
HIGHEST 86 04/03
04/04
04/05
LOWEST 18 03/03
AVG. MAXIMUM 70.7
AVG. MINIMUM 45.1
MEAN 57.9 56.2 1.7
DAYS MAX >= 90 0
DAYS MIN <= 32 20
PRECIPITATION (INCHES)
RECORD
MAXIMUM 18.84 2020
MINIMUM 5.67 2007
TOTALS 10.26 11.57 -1.31
DAILY AVG. 0.11
DAYS >= .01 37
DAYS >= .10 24
DAYS >= .50 7
DAYS >= 1.00 2
GREATEST
24 HR. TOTAL 1.29 04/06 TO 04/07
SNOWFALL (INCHES)
TOTALS T
SINCE 7/1 7.9
SNOWDEPTH AVG. 0
DAYS >= TRACE 3
DAYS >= 1.0 0
GREATEST
SNOW DEPTH 0
DEGREE DAYS
HEATING TOTAL 752 910 -158
COOLING TOTAL 115 95 20
................................................
WIND (MPH)
HIGHEST WIND SPEED/DIRECTION 33/280 DATE 03/05
HIGHEST GUST SPEED/DIRECTION 45/280 DATE 03/05
SKY COVER
AVERAGE SKY COVER 0.63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 13 MIXED PRECIP 0
HEAVY RAIN 14 RAIN 20
LIGHT RAIN 34 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 3 SLEET 2
FOG 39 FOG W/VIS <= 1/4 MILE 2
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$
Monthly Averages, Totals and Normals
For recent monthly data, please review the Monthly Weather Summary product at: http://w2.weather.gov/climate/index.php?wfo=mrx.
MOST RECENT RECORDS
For recent records, please visit our Record Event Report (RER) products for Chattanooga (CHA), Knoxville (TYS), and Tri-Cities (TRI).
705
SXUS74 KMRX 170830 RRA
RERCHA
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
417 AM EDT SAT MAY 17 2025
...RECORD DAILY HIGH MINIMUM TEMPERATURE SET AT LOVELL FIELD
AIRPORT...
THE LOW TEMPERATURE YESTERDAY AT THE CHATTANOOGA AIRPORT WAS 74
DEGREES.
THIS BREAKS THE OLD RECORD HIGH MINIMUM TEMPERATURE FOR MAY THE
16TH...WHICH WAS 71 IN 1915
$$
613
SXUS74 KMRX 170830
RERTYS
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
417 AM EDT SAT MAY 17 2025
...RECORD DAILY HIGH MINIMUM TEMPERATURE TIED AT KNOXVILLE MCGHEE
TYSON AIRPORT...
THE LOW TEMPERATURE YESTERDAY AT THE KNOXVILLE AIRPORT WAS 72
DEGREES.
THIS TIES THE OLD RECORD HIGH MINIMUM TEMPERATURE FOR MAY THE
16TH...WHICH WAS 72 IN 1915
$$
753
SXUS74 KMRX 242117
RERTRI
RECORD EVENT REPORT
NATIONAL WEATHER SERVICE MORRISTOWN, TN
0514 PM EDT SAT MAY 24 2025
...RECORD LOW TEMPERATURE SET AT TRI-CITIES REGIONAL AIRPORT...
A RECORD LOW TEMPERATURE FOR THIS DATE OF 39 DEGREES WAS SET AT THE
TRI-CITIES REGIONAL AIRPORT TODAY. THIS BREAKS THE OLD RECORD OF 40
DEGREES SET IN 1961.
$$
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