National Weather Service United States Department of Commerce

National Weather Service Morristown, TN

End of Year Climate Review

2017

 

Below is included a summary of each month of the 2017 year, with a table of temperature averages, precipitation, and their normals at the end. Below these tables, is the 2017 Yearly Stats, and a few graphs. As always, if there are any questions, feel free to contact the NWS Morristown, TN office! 

 

January

Chattanooga:

9th warmest on record with 49.1°

Record: 53.7° in 1950 

66th wettest on record with 4.99"

Record: 12.67" in 1882 

 

Highest temperature of the month:

74° on January 14th

 

Lowest temperature of the month:

14° on January 8th

 

Highest amount of precipitation in one day:

1.04" on January 22nd 

 

Highest amount of snowfall in one day:

0.3" on January 6th

Knoxville:

9th warmest on record with 47.2°

Record: 52.0° in 1950 

99th wettest on record with 3.37"

Record: 16.98" in 1882

 

Highest temperature of the month:

68° on January 13th, 20th, 22nd, and 25th 

 

Lowest temperature of the month:

7° on January 8th

 

 Highest amount of precipitation in one day:

0.88" on January 22nd

 

Highest amount of snowfall in one day:

1.3" on January 7th

Tri-Cities:

4th warmest with 44.4°

Record: 50.0° in 1950

56th wettest on record with 2.55"

Record: 9.99" in 2013

 

Highest temperature of the month:

69° on January 16th and 22nd 

 

Lowest temperature of the month:

7° on January 8th

 

Highest amount of precipitation in one day:

0.38" on January 3rd

 

Highest amount of snowfall in one day:

2.4" on January 4th 

 

 

 

 

 

 

 

 

 

 

February

Chattanooga:

7th warmest on record with 50.9°

Record: 53.7° in 1890

40th driest on record with 3.44"

Record: 0.62" in 1941

 

Highest temperature of the month:

79° on February 24th

 

Lowest temperature of the month:

26° on February 4th

 

Highest amount of precipitation in one day:

1.02" on February 28th

 

Highest amount of snowfall in one day:

0.0"  

 

Knoxville:

5th warmest on record with 49.4°

Record: 51.9° in 1890

23rd driest on record with 2.57"

Record: 0.56 " in 1898

 

Highest temperature of the month:

79° on February 24th

 

Lowest temperature of the month:

22° on February 4th

 

 Highest amount of precipitation in one day:

0.60" on February 15th

 

Highest amount of snowfall in one day:

T" on February 2nd, 4th, 5th, and 9th

 

Tri-Cities:

4th warmest with 45.6°

Record: 47.7° in 1938

17th driest on record with 2.13"

Record: 0.75" in 1968

 

Highest temperature of the month:

77° on February 24th

 

Lowest temperature of the month:

14° on February 4th

 

Highest amount of precipitation in one day:

0.62" on February 8th

 

Highest amount of snowfall in one day:

T" on February 3rd, 5th, 9th, and 15th 

 

 

 

 

 

 

 

 

 

 

 

March

Chattanooga:

26th warmest on record with 54.8°

Record: 62.9° in 2012

94th wettest on record with 4.13"

Record: 16.32" in 1980

 

Highest temperature of the month:

84° on March 21st

 

Lowest temperature of the month:

24° on March 16th

 

Highest amount of precipitation in one day:

1.13" on March 27th

 

Highest amount of snowfall in one day:

T" on March 11th, 12th, 14th, and 15th

 

Knoxville:

44th warmest on record with 52.0°

Record: 60.4° in 2012

44th wettest on record with 5.73"

Record: 13.35" in 1917

 

Highest temperature of the month:

81° on March 21st

 

Lowest temperature of the month:

21° on March 16th

 

 Highest amount of precipitation in one day:

0.96" on March 1st

 

Highest amount of snowfall in one day:

T" on March 11th and 15th

 

Tri-Cities:

33rd warmest with 47.8°

Record: 56.9° in 2012

21st wettest on record with 4.57"

Previous Record: 9.56" in 1955

 

Highest temperature of the month:

77° on March 27th and 29th

 

Lowest temperature of the month:

15° on March 16th

 

Highest amount of precipitation in one day:

1.72" on March 1st

 

Highest amount of snowfall in one day:

0.2" on March 15th

 

 

 

 

 

 

 

 

 

 

 

April

Chattanooga:

1st warmest on record with 66.5°

Previous Record: 65.6° in 1954

3rd wettest on record with 10.43"

Record: 15.29" in 1911

 

Highest temperature of the month:

89° on April 29th

 

Lowest temperature of the month:

36° on April 8th

 

Highest amount of precipitation in one day:

1.87" on April 23rd

 

Knoxville:

1st warmest on record with 65.1°

Previous Record: 64.6° in 1954

9th wettest on record with 7.61"

Record: 17.62" in 1874

 

Highest temperature of the month:

89° on April 29th

 

Lowest temperature of the month:

36° on April 8th

 

 Highest amount of precipitation in one day:

1.97" on April 23rd

 

Tri-Cities:

2nd warmest with 61.2°

Record: 61.8° in 1954

9th wettest on record with 5.16"

Record: 7.03" in 1998

 

Highest temperature of the month:

90° on April 29th

 

Lowest temperature of the month:

30° on April 8th

 

Highest amount of precipitation in one day:

1.87" on April 23rd

 

 

 

 

 

 

 

 

 

 

 

May

Chattanooga:

39th warmest on record with 70.3°

Record: 75.2° in 1962

25th wettest on record with 5.87"

Record: 12.00" in 1929

 

Highest temperature of the month:

91° on May 20th 

 

Lowest temperature of the month:

45° on May 6th and 7th

 

Highest amount of precipitation in one day:

2.01" on May 4th

 

Knoxville:

61st warmest on record with 68.0°

Record: 74.0° in 1962

35th wettest on record with 4.85"

Record: 10.98" in 1974

 

Highest temperature of the month:

91° on May 20th

 

Lowest temperature of the month:

42° on May 7th

 

 Highest amount of precipitation in one day:

0.95" on May 23rd

 

Tri-Cities:

32nd warmest with 65.0°

Record: 71.2° in 1962

3rd wettest on record with 7.78"

Record: 9.71" in 1950

 

Highest temperature of the month:

89° on May 17th

 

Lowest temperature of the month:

39° on May 8th

 

Highest amount of precipitation in one day:

1.51" on May 12th

 

 

 

 

 

 

 

 

 

 

 

June

Chattanooga:

71st warmest on record with 76.1°

Record: 82.2° in 1952

52nd wettest on record with 4.48"

Record: 9.40" in 1949

 

Highest temperature of the month:

93° on June 12th and 15th

 

Lowest temperature of the month:

56° on June 26th

 

Highest amount of precipitation in one day:

1.23" on June 22nd

 

Number of days with temp >= 90:

6 days

Record: 26 days in 1952

Knoxville:

111th warmest on record with 73.5°

Record: 81.4° in 1952

58th wettest on record with 4.42"

Record: 11.83" in 1928

 

Highest temperature of the month:

91° on June 13th

 

Lowest temperature of the month:

54° on June 28th

 

 Highest amount of precipitation in one day:

1.50" on June 13th 

 

Number of days with temp >= 90:

1 day

Record: 24 days in 1936

Tri-Cities:

57th warmest with 71.1°

Record: 77.8° in 1952

67th wettest on record with 2.06"

Record: 8.37" in 2013

 

Highest temperature of the month:

89° on June 15th, 18th, 23rd, and 29th

 

Lowest temperature of the month:

49° on June 7th and 28th

 

Highest amount of precipitation in one day:

0.63" on June 5th

 

Number of days with temp >=90:

0 days

Record: 18 days in 1952

 

 

 

 

 

 

 

 

 

 

 

July

Chattanooga:

26th warmest on record with 81.0°

Record: 85.2° in 1993

20th wettest on record with 6.94"

Record: 13.49" in 1916

 

Highest temperature of the month:

97° on July 22nd 

 

Lowest temperature of the month:

65° on July 10th and 31st

 

Highest amount of precipitation in one day:

1.42" on July 14th

 

Number of days with temp >= 90:

21 days

Record: 31 days in 1993

Knoxville:

58th warmest on record with 78.4°

Record: 83.0° in 1993

114th wettest on record with 3.02"

Record: 13.16" in 1917

 

Highest temperature of the month:

96° on July 22nd

 

Lowest temperature of the month:

62° on July 10th and 31st

 

 Highest amount of precipitation in one day:

0.65" on July 28th

 

Number of days with temp >= 90:

13 days

Record: 30 days in 1993

Tri-Cities:

16th warmest with 76.6°

Record: 79.6° in 1993

47th wettest on record with 4.28"

Record: 12.70" in 2012

 

Highest temperature of the month:

96° on July 22nd

 

Lowest temperature of the month:

56° on July 31st

 

Highest amount of precipitation in one day:

2.27" on July 28th

 

Number of days with temp >= 90:

14 days

Record: 25 days in 1993

 

 

 

 

 

 

 

 

 

 

August

Chattanooga:

49th warmest on record with 78.8°

Record: 85.7° in 2007

70th wettest on record with 3.47"

Record: 12.36" in 1920

 

Highest temperature of the month:

94° on August 20th and 22nd

 

Lowest temperature of the month:

63° on August 6th

 

Highest amount of precipitation in one day:

1.02" on August 11th

 

Number of days with temp >= 90:

12 days

Record: 30 days in 2007

Knoxville:

95th warmest on record with 76.1°

Record: 83.2° in 2007

17th wettest on record with 5.95"

Record: 11.33" in 1920

 

Highest temperature of the month:

91° on August 20th and 22nd

 

Lowest temperature of the month:

56° on August 6th

 

 Highest amount of precipitation in one day:

2.00" on August 12th

 

Number of days with temp >= 90:

3 days

Record: 30 days in 2007

Tri-Cities:

43rd warmest with 73.6°

Record: 79.0° in 2007

4th wettest on record with 6.28"

Record: 11.34" in 2003

 

Highest temperature of the month:

90° on August 20th, 21st, and 22nd

 

Lowest temperature of the month:

54° on August 25th

 

Highest amount of precipitation in one day:

2.24" on August 15

 

Number of days with temp >= 90:

3 days

Record: 26 days in 2007

 

 

 

 

 

 

 

 

 

 

September

Chattanooga:

68th warmest on record with 72.4°

Record: 82.8° in 1925

55th wettest on record with 3.64"

Record: 14.18" in 1977

 

Highest temperature of the month:

91° on September 23rd and 27th

 

Lowest temperature of the month:

51° on September 7th

 

Highest amount of precipitation in one day:

1.83" on September 11th

Knoxville:

89th warmest on record with 70.2°

Record: 79.7° in 1925

82nd wettest on record with 2.43"

Record: 9.19" in 1989

 

Highest temperature of the month:

89° on September 23rd and 27th

 

Lowest temperature of the month:

50° on September 7th and 8th

 

 Highest amount of precipitation in one day:

1.57" on September 5th

 

Tri-Cities:

48th warmest with 67.5°

Record: 72.9° in 1970

74th wettest on record with 0.99"

Record: 7.09" in 1972

 

Highest temperature of the month:

90° on September 23rd and 27th

 

Lowest temperature of the month:

44° on September 8th

 

Highest amount of precipitation in one day:

0.61" on September 5th

 

 

 

 

 

 

 

 

 

 

 

October

Chattanooga:

34th warmest on record with 63.5°

Record: 69.7° in 1919

14th wettest on record with 6.10"

Record: 11.91" in 1925

 

Highest temperature of the month:

88° on October 9th and 10th

 

Lowest temperature of the month:

30° on October 30th

 

Highest amount of precipitation in one day:

3.65" on October 8th

 

Knoxville:

34th warmest on record with 62.0°

Record: 68.9° in 1919

10th wettest on record with 5.36"

Record: 9.51" in 1925

 

Highest temperature of the month:

87° on October 7th

 

Lowest temperature of the month:

29° on October 30th

 

 Highest amount of precipitation in one day:

2.16" on October 8th

 

Tri-Cities:

17th warmest with 59.6°

Record: 63.6° in 1984

9th wettest on record with 4.45"

Record: 6.20" in 2014

 

Highest temperature of the month:

86° on October 7th, 10th, and 11th

 

Lowest temperature of the month:

30° on October 30th

 

Highest amount of precipitation in one day:

1.58" on October 23rd

 

 

 

 

 

 

 

 

 

 

 

November

Chattanooga:

20th warmest on record with 53.4°

Record: 58.8° in 1985

21st driest on record with 1.65"

Record: 0.16" in 1890

 

Highest temperature of the month:

78° on November 5th and 6th 

 

Lowest temperature of the month:

28° on November 20th

 

Highest amount of precipitation in one day:

0.90" on November 7th

 

Knoxville:

40th warmest on record with 50.7°

Record: 56.8° in 1985

68th driest on record with 3.19"

Record: 0.17" in 1890

 

Highest temperature of the month:

77° on November 5th

 

Lowest temperature of the month:

26° on November 20th

 

 Highest amount of precipitation in one day:

2.25" on November 7th

 

Tri-Cities:

31st warmest with 47.6°

Record: 55.3° in 1985

6th driest on record with 1.10"

Record: 0.50" in 2001

 

Highest temperature of the month:

78° on November 5th

 

Lowest temperature of the month:

22° on November 27th

 

Highest amount of precipitation in one day:

0.38" on November 7th

 

 

 

 

 

 

 

 

 

 

 

December

Chattanooga:

68th warmest on record with 42.9°

Record: 57.5° in 1889

st wettest on record with "

Record: 13.68" in 1961

 

Highest temperature of the month:

68° on December 23rd

 

Lowest temperature of the month:

20° on December 31st

 

Highest amount of precipitation in one day:

1.80" on December 20th

 

Highest amount of snowfall in one day:

0.5" on December 8th

 

Knoxville:

74th warmest on record with 40.6°

Record: 54.1° in 1889

rd wettest on record with "

Record: 12.34" in 1901

 

Highest temperature of the month:

67° on December 23rd

 

Lowest temperature of the month:

17° on December 31st

 

 Highest amount of precipitation in one day:

1.41" on December 20th

 

Highest amount of snowfall in one day:

0.6" on December 8th

 

Tri-Cities:

45th warmest with 38.5°

Record: 50.5° in 2015

th wettest on record with "

Record: 6.75" in 1961

 

Highest temperature of the month:

64° on December 4th

 

Lowest temperature of the month:

13° on December 28th

 

Highest amount of precipitation in one day:

0.61" on December 23rd

 

Highest amount of snowfall in one day:

1.2" on December 9th

 

 

 

 

 

 

 

 

 


 

 

Winter 2016 - 2017 (December, January, and February)

Chattanooga

4th warmest on record with 48.2°

Record: 53.9° in 1889-1890

 

Normal temperature value: 42.5°

Departure from normal: +5.7

 

87th wettest on record with 13.48"

Record: 30.94" in 1961-1962

 

Normal precipitation value: 14.65"

Departure from normal: -1.17

Knoxville 

6th warmest on record with 46.5°  

Record: 51.6° in 1889-1890

 

Normal temperature value: 40.5°

Departure from normal: +6.0

 

77th wettest on record with 12.90"

Record: 28.40" in 1881-1882

 

Normal precipitation value: 13.08"

Departure from normal: -0.18

Tri-Cities  

4th warmest on record with 43.2°

Record: 45.0° in 1949-1950

 

Normal temperature value: 37.3°

Departure from normal: +5.9

 

44th wettest on record with 10.04"

Record: 19.19" in 1956-1957

 

Normal precipitation value: 10.19"

Departure from normal: -0.15

  

 

 

 

 

 

 

 

 

 

Spring 2017 (March, April, and May)

Chattanooga

2nd warmest on record with 63.9°

Record: 66.8° in 2012

 

Normal temperature value: 60.4°

Departure from normal: +3.5

 

17th wettest on record with 20.43."

Record: 29.50" in 1929

 

Normal precipitation value: 13.07"

Departure from normal: +7.36

Knoxville 

8th warmest on record with 61.7°  

Record: 64.6° in 2012

 

Normal temperature value: 58.8°

Departure from normal: +2.9

 

13th wettest on record with 18.19"

Record: 23.93" in 1874

 

Normal precipitation value: 12.86"

Departure from normal+5.33

Tri-Cities  

10th warmest on record with 58.0°

Record: 61.1° in 2012

 

Normal temperature value: 55.1°

Departure from normal: +2.9

 

1st wettest on record with 17.51"

Previous Record: 17.22" in 1973

 

Normal precipitation value: 10.57"

Departure from normal: +6.94

 

 

 

 

 

 

 

 

 

 

Summer 2017 (June, July, and August)

Chattanooga

45th warmest on record with 78.6°

Record: 83.0° in 2010

 

Normal temperature value: 78.6°

Departure from normal: 0.0

 

33rd wettest on record with 14.89"

Record: 24.72" in 1920

 

Normal precipitation value: 12.44"

Departure from normal: +2.45

 

Number of days with temp >= 90:

66th highest on record with 38 days

Record: 77 days in 2016

Knoxville 

88th warmest on record with 76.0°  

Record: 81.0° in 2010

 

Normal temperature value: 77.1°

Departure from normal: -1.1

 

50th wettest on record with 13.39"

Record: 22.85" in 1917

 

Normal precipitation value: 12.16"

Departure from normal: +1.23

 

Number of days with temp >= 90:

104th highest on record with 17 days

Record: 68 days in 2010

Tri-Cities  

41st warmest on record with 73.8°

Record: 77.3° in 2010

 

Normal temperature value: 73.3°

Departure from normal: +0.5

 

35th wettest on record with 12.62"

Record: 25.26" in 2003

 

Normal precipitation value: 12.06"

Departure from normal: +0.56

 

Number of days with temp >= 90:

32nd highest on record with 17 days

Previous Record: 52 days in 2016

 

 

 

 

 

 

 

 

 

 

Fall 2017 (September, October, and November)

Chattanooga

32nd warmest on record with 63.1°

Record: 67.5° in 2016

 

Normal temperature value: 61.7°

Departure from  normal: +1.4

 

55th wettest on record with 11.39"

Record: 29.05" in 1977

 

Normal precipitation value: 12.32"

Departure from normal: -0.93

Knoxville 

45th warmest on record with 61.0°  

Record: 65.4° in 2016

 

Normal temperature value: 60.2°

Departure from  normal: +0.8

 

43rd wettest on record with 10.98"

Record: 20.58" in 2011

 

Normal precipitation value: 9.76"

Departure from normal: +1.22

Tri-Cities  

23rd warmest on record with 58.2°

Record: 60.9° in 2016

 

Normal temperature value: 56.7°

Departure from normal: +1.5

 

55th wettest on record with 6.54"

Record: 14.51" in 1972

 

Normal precipitation value: 8.19"

Departure from normal: -1.65

 

 

 

 

 

 

 

 


 

 

Monthly/Yearly Average Temperatures and Normals
Month Chattanooga Avg Temp Chattanooga Normals Knoxville Avg Temp Knoxville Normals Tri-Cities Avg Temp Tri-Cities Normals
January 49.1 40.5 47.2 38.2 44.4 35.2
February 50.9 44.4 49.4 42.4 45.6 39.0
March 54.8 52.2 52.0 50.3 47.8 46.7
April 66.5 60.5 65.1 58.8 61.2 55.2
May 70.3 68.6 68.0 67.2 65.0 63.5
June 76.1 76.5 73.5 75.0 71.1 71.5
July 81.0 80.0 78.4 78.4 76.6 74.6
August 78.8 79.4 76.1 77.8 73.6 73.8
September 72.4 72.5 70.2 71.1 67.5 67.1
October 63.5 61.5 62.0 59.9 59.6 56.3
November 53.4 51.2 50.7 49.7 47.6 46.6
December 42.9 42.6 40.6 40.8 38.5 37.8
2017 Year 63.3 60.8 61.1 59.1  58.2 55.6
 

 

 

 

 

Monthly/Yearly Precipitation and Normals
Month Chattanooga Precip Chattanooga Normals Knxoville Precip Knoxville Normals Tri-Cities Precip Tri-Cities Normals
January 4.99 4.91 3.37 4.32 2.55 3.37
February 3.44 4.84 2.57 4.26 2.13 3.45
March 4.13 4.98 5.73 4.34 4.57 3.44
April 10.43 3.99 7.61 4.01 5.16 3.33
May 5.87 4.10 4.85 4.51 7.78 3.80
June 4.48 4.05 4.42 3.81 2.06 3.90
July 6.94 4.91 3.02 5.08 4.28 4.69
August 3.47 3.48 5.95 3.27 6.28 3.47
September 3.64 4.04 2.43 3.24 0.99 2.99
October 6.10 3.28 5.36 2.51 4.45 2.10
November 1.65 5.00 3.19 4.01 1.10 3.10
December 3.34 4.90 3.38 4.50 1.76 3.37
2017 Year 58.48 52.48 51.88 47.86 43.11 41.01

 

 


 

 

2017 Yearly Average Temperature and Precipitation

Chattanooga:

3rd warmest on record with 63.3°

Record: 64.1° in 2016

 

 

Highest temperature of the year:

97° on July 22nd

 

Lowest temperature of the year:

14° on January 8th

 

Number of days with temp >= 90:

39 days

Record: 102 days in 2016

 

 

Precipitation

35th wettest on record with 58.48"

Record: 73.70" in 1994

 

Highest amount of precip in one day:

3.65" on October 8th

 

 

Snowfall

100th highest on record with 0.8"

Record: 22.7" in 1993

 

Highest amount of snow of the year:

0.5" on December 8th 

Knoxville:

6th warmest on record with 61.1°

Record: 61.9° in 2016

 

 

Highest temperature of the year:

96° on July 22nd

 

Lowest temperature of the year:

7° on January 8th

 

Number of days with temp >= 90:

26 days

Record: 78 days in 1936

 

 

Precipitation

42nd wettest on record with 51.88"

Record: 73.77" in 1875

 

Highest amount of precip in one day:

2.25" on November 7th

 

 

Snowfall

103rd highest on record with 3.2"

Record: 54.4" in 1960

 

Highest amount of snow of the year:

1.3" on January 7th

Tri-Cities:

2nd warmest on record with 58.2°

Record: 58.3° in 2016

 

 

Highest temperature of the year:

96° on July 22nd

 

Lowest temperature of the year:

7° on January 8

 

Number of days with temp = 90:

17 days

Record: 62 days in 2016

 

 

Precipitation

32nd wettest on record with 43.11"

Record: 65.64" in 2003

 

Highest amount of precip in one day:

2.27" on July 28th

 

 

Snowfall

57th highest on record with 5.8"

Record: 47.7" in 1960

 

Highest amount of snow of the year:

2.4" on January 4th

 

 

 

2017 Yearly Graphs:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drought Monitor

 

The US Drought Monitor is issued every Thursday morning. Below are the Drought Monitor maps and data from the first Thursday of every month. Tennessee is below, with Virginia and North Carolina included at the end.

 

 

Tennessee

 

 

 

 

 

 

Drought Monitor for TN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Virginia

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

North Carolina

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JW