National Weather Service United States Department of Commerce

Morristown, TN Area Seasonal Climate Summary

Summer 2017 (June, July, and August)

 

All normals are based on 30 year climate period from 1981 - 2010.

Chattanooga's period of record is from 1879 - 2017.

Knoxville's period of record is from 1871 - 2017.

Tri-Cities' period of record is from 1937 - 2017.

 

Seasonal Averages/Totals and Normals

 

Chattanooga Seasonal Averages/Totals and Normals

Temperature and Precip

Average/Total Value  Value Ranking Records (Year)   Normal Value  Departure from normal

 Average Temperature

78.6° 45th warmest 83.0° (2010) 78.6° 0.0

Total Precipitation 

14.89 in 33rd wettest 24.72 in (1920)  12.44 in  +2.45

Total Snowfall

N/A N/A N/A N/A N/A


 

 

Knoxville Seasonal Averages/Totals and Normals

Temperature and Precip

Average/Total Value  Value Ranking Records (Year) Normal Value Departure from normal

Average Temperature

76.0° 88th warmest 81.0° (2010) 77.1° -1.1

Total Precipitation 

13.39 in 50th wettest 22.85 in (1917)  12.16 in +1.23

Total Snowfall 

N/A N/A N/A N/A N/A

 

 

 

Tri-Cities Seasonal Averages/Totals and Normals

Temperature and Precip 

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

73.8°

41st warmest

77.3° (2010)

73.3°

+0.5

Total Precipitation

12.62 in

35th wettest

25.26 in (2003)

12.06 in

+0.56

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

June Averages/Totals and Normals

 

Chattanooga June Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

76.1°

71st warmest

82.2° (1952)

76.5°

-0.4

Total Precipitation

4.48 in

52nd wettest

9.40 in (1949)

4.05 in

+0.43

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Knoxville June Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

73.5°

111th warmest

81.4° (1952)

75.0°

-1.5

Total Precipitation

4.42 in

58th wettest

11.83 in (1928)

3.81 in

+0.61

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Tri-Cities June Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

71.1°

57th warmest

77.8° (1952)

71.5°

-0.4

Total Precipitation

2.06 in

67th wettest

8.37 in (2013)

3.90 in

-1.84
Total Snowfall N/A N/A N/A N/A N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

July Averages/Totals and Normals  

 

Chattanooga July Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

80.9°

28th warmest

85.2° (1993)

80.0° +0.9

Total Precipitation

6.94 in

20th wettest

13.49 in (1916)

4.91 in

+2.03

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Knoxville July Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

78.4°

58th warmest

83.0° (1993)

78.4°

0.0

Total Precipitation

3.02 in

114th wettest

13.16 in (1917)

5.08 in

-2.06

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Tri-Cities July Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

76.6°

16th warmest

79.6° (1993)

74.6°

+2.0

Total Precipitation

4.28 in

47th wettest

12.70 in (2012)

4.69 in

-0.41

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

August Averages/Totals and Normals

 

Chattanooga August Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

78.8°

49th warmest

85.7° (2007)

79.4°

 -0.6

Total Precipitation

3.47 in

70th wettest

12.36 in (1920)

3.48 in

-0.01

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Knoxville August Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

76.1°

95th warmest

83.2° in (2007)

77.8°

-1.7

Total Precipitation

5.95 in

17th wettest

11.33 in (1920)

3.27 in

+2.68

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Tri-Cities August Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

73.6°

43rd warmest

79.0° (2007)

73.8°

-0.2

Total Preciptiation

6.28 in

4th wettest 11.34 in (2003) 3.47 in +2.81

Total Snowfall

N/A N/A N/A N/A N/A

 

 

 

Images for August are not available at this time.

 

 

 

 

 

 RECORDS:

Chattanooga:

No records were set in June, July, or August.

 

 

 Knoxville:

August 6, 2017: Record low temperature of 56 degrees breaks the old record of 57 degrees set in 1950.

August 7, 2017: Record highest rainfall of 1.66 inches breaks the old record of 1.17 inches set in 2003.

August 12, 2017: Record highest rainfall of 2.00 inches breaks the old record of 1.67 inches set in 1937.

 

 

Tri-Cities:

June 28, 2017: Record low temperature of 49 degrees breaks the old record of 50 degrees set in 1970.

July 1, 2017: Record highest low temperature of 72 degrees breaks the old record of 71 degrees set in 1971.

July 18, 2017: Record high temperature of 93 degrees ties the old record of 93 degrees set in 2010.

July 23, 2017: Record highest low temperature of 72 degrees breaks the old record of 71 degrees set in 2011.

July 28, 2017: Record highest rainfall of 2.27 inches breaks the old record of 2.24 inches set in 2001.

August 15, 2017: Record highest rainfall of 2.24 inches breaks the old record of 1.76 inches set in 1957.