National Weather Service United States Department of Commerce

Morristown, TN Area Seasonal Climate Summary

Spring 2017 (March, April, and May)

 

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

63.8° 2nd warmest 66.8° (2012) 60.4° +3.4

Total Precipitation 

20.43 in 17th wettest 29.50 in (1929)  13.07 in  +7.36

Total Snowfall

T in 46th highest 20.0 in (1993) 1.3 in  -1.3

 

 

 

Knoxville Seasonal Averages/Totals and Normals

Temperature and Precip

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

Average Temperature

61.7° 8th warmest 64.6° (2012) 58.8° +2.9

Total Precipitation 

18.19 in 13th wettest 23.93 in (1874)  12.86 in +5.33

Total Snowfall 

T in 69th highest 20.2 in (1960) 1.4 in -1.4

 

 

 

Tri-Cities Seasonal Averages/Totals and Normals

Temperature and Precip 

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

58.0°

10th warmest

61.1° (2012)

55.1°

+2.9

Total Precipitation

17.51 in

1st wettest

17.51 in (2017)

10.57 in

+6.94

Total Snowfall

0.3 in 46th highest 27.9 in (1960) 2.5 in  -2.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

March Averages/Totals and Normals

 

Chattanooga March Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

54.8°

26th warmest

62.9° (2012)

52.2°

+2.6

Total Precipitation

4.13 in

94th wettest

16.32 in (1980)

4.98 in

-0.85

Total Snowfall

T in 43rd highest 20.0 in (1993) 1.2 in -1.2

 

 

 

Knoxville March Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

52.0°

44th warmest

60.4° (2012)

50.3°

+1.7

Total Precipitation

5.73 in

44th wettest

13.35 in (1917)

4.34 in

+1.39

Total Snowfall

T in 64th highest 20.2 in (1960) 0.9 in -0.9

 

 

 

Tri-Cities March Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

 Records (Year)

Normal Value

Departure from normal

Average Temperature

47.8°

33rd warmest

56.9° (2012)

46.7°

+1.1

Total Precipitation

4.57 in

21st wettest

9.56 in (1955)

3.44 in

+1.13
Total Snowfall 0.3 in 40th highest 27.9 in (1960) 1.4 in -1.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

April Averages/Totals and Normals  

 

Chattanooga April Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

66.5°

1st warmest

66.5° (2017)

60.5° +6.0

Total Precipitation

10.43 in

3rd wettest

15.29 in (1911)

3.99 in

+6.44

Total Snowfall

0.0 in 24th highest 4.1 in (1910) 0.1 in -0.1

 

 

 

Knoxville April Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

65.1°

1st warmest

65.1° (2017)

58.8°

+6.3

Total Precipitation

7.61 in

9th wettest

17.62 in (1874)

4.01 in

+3.60

Total Snowfall

0.0 in 51st highest 10.7 in (1987) 0.5 in -0.5

 

 

 

Tri-Cities April Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

61.2°

2nd warmest

61.8° (1954)

55.2°

+6.0

Total Precipitation

5.16 in

9th wettest

7.03 in (1998)

3.33 in

+1.83

Total Snowfall

0.0 in  50th highest 14.8 in (1987) 1.1 in -1.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

May Averages/Totals and Normals

 

Chattanooga May Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

70.2°

39th warmest

75.2° (1962)

68.6°

 +1.6

Total Precipitation

5.87 in

25th wettest

12.00 in (1929)

4.10 in

+1.77

Total Snowfall

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

 

 

 

Knoxville May Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

68.0°

61st warmest

74.0° in (1962)

67.2°

+0.8

Total Precipitation

4.85 in

35th wettest

10.98 in (1974)

4.51 in

+0.34

Total Snowfall

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

 

 

 

Tri-Cities May Averages/Totals and Normals

Temperature and Precip

Average/Total Value

Value Ranking

Records (Year)

Normal Value

Departure from normal

Average Temperature

65.0°

32nd warmest

71.2° (1962)

63.5°

+1.5

Total Preciptiation

7.78 in

3rd wettest 9.71 in (1950) 3.80 in +3.98

Total Snowfall

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 RECORDS:

Chattanooga:

April 29, 2017: Record high temperature of 89 degrees breaks the old record of 88 degrees set in 1942.

May 19, 2017: Record highest low temperature of 70 degrees breaks the old record of 69 degrees set in 1911.

 

 

 Knoxville:

April 3, 2017: Record highest rainfall of 1.78 inches breaks the old record of 1.73 inches set in 2000.

April 23, 2017: Record highest rainfall of 1.97 inches breaks the old record of 1.63 inches set in 1977.

April 29, 2017: Record high temperature of 89 degrees breaks the old record of 88 degrees set in 1872.

April 30, 2017: Record highest low temperature of 67 degrees breaks the old record of 65 degrees set in 1970.

May 19, 2017: Record highest low temperature of 69 degrees breaks the old record of 68 degrees set in 2000.

May 20, 2017: Record highest low temperature of 69 degrees breaks the old record of 68 degrees set in 1996.

 

 

Tri-Cities:

March 1, 2017: Record highest rainfall of 1.65 inches breaks the old record of 0.94 inches set in 1991.

April 23, 2017: Record highest rainfall of 1.87 inches breaks the old record of 1.32 inches set in 1968.

April 29, 2017: Record high temperature of 90 degrees breaks the old record of 86 degrees set in 1996.