Sumter Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Sumter, South Carolina, based on NOAA data.
Also see:
What's the hottest day of the year in Sumter?
On average, July 18 is the hottest day of the year Sumter, South Carolina. From 1991–2020, the average high temperature on July 18 was 90.8 °F and the average low was 70.0 °F.
What's the coldest day of the year in Sumter?
On average, January 18 is the coldest day of the year Sumter, South Carolina. From 1991–2020, the average high temperature on January 18 was 55.8 °F, and the average low was 32.6 °F.
Average Temperature by Day
  • Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day Average (°F)
High Low
January 1 56.7 34.3
January 2 56.7 34.2
January 3 56.6 34.2
January 4 56.5 34.1
January 5 56.5 34.1
January 6 56.4 34.0
January 7 56.3 33.8
January 8 56.1 33.7
January 9 56.1 33.6
January 10 56.1 33.6
January 11 56.2 33.5
January 12 56.1 33.4
January 13 56.0 33.2
January 14 55.9 33.0
January 15 55.9 32.9
January 16 55.9 32.8
January 17 55.8 32.8
January 18 55.8 32.6
January 19 55.9 32.6
January 20 56.0 32.7
January 21 56.0 32.7
January 22 55.9 32.7
January 23 56.0 32.8
January 24 56.1 32.8
January 25 56.2 32.8
January 26 56.3 32.8
January 27 56.3 32.7
January 28 56.3 32.6
January 29 56.3 32.6
January 30 56.3 32.6
January 31 56.2 32.5
February 1 56.3 32.6
February 2 56.4 32.7
February 3 56.5 32.8
February 4 56.7 32.9
February 5 56.9 33.0
February 6 57.0 33.2
February 7 57.3 33.4
February 8 57.6 33.6
February 9 57.9 33.9
February 10 58.2 34.2
February 11 58.4 34.5
February 12 58.6 34.6
February 13 58.7 34.7
February 14 58.9 34.9
February 15 59.1 35.0
February 16 59.5 35.2
February 17 59.8 35.4
February 18 59.9 35.5
February 19 60.0 35.5
February 20 60.3 35.6
February 21 60.5 35.7
February 22 60.8 35.9
February 23 61.1 36.0
February 24 61.4 36.2
February 25 61.7 36.5
February 26 62.0 36.6
February 27 62.3 36.7
February 28 62.6 37.0
March 1 63.0 37.4
March 2 63.4 37.7
March 3 63.7 37.9
March 4 63.9 38.1
March 5 64.3 38.4
March 6 64.6 38.7
March 7 64.8 39.0
March 8 65.0 39.1
March 9 65.1 39.2
March 10 65.4 39.3
March 11 65.6 39.4
March 12 65.9 39.6
March 13 66.2 39.9
March 14 66.5 40.3
March 15 66.9 40.6
March 16 67.1 40.8
March 17 67.3 41.1
March 18 67.4 41.3
March 19 67.7 41.7
March 20 68.2 42.1
March 21 68.6 42.5
March 22 69.0 42.8
March 23 69.2 43.1
March 24 69.4 43.4
March 25 69.6 43.6
March 26 69.8 43.9
March 27 70.1 44.1
March 28 70.3 44.4
March 29 70.6 44.7
March 30 71.0 45.0
March 31 71.3 45.3
April 1 71.6 45.6
April 2 71.9 45.8
April 3 72.1 46.0
April 4 72.4 46.2
April 5 72.7 46.5
April 6 73.0 46.8
April 7 73.3 47.2
April 8 73.6 47.5
April 9 73.8 47.8
April 10 74.1 48.0
April 11 74.4 48.2
April 12 74.6 48.4
April 13 74.9 48.7
April 14 75.0 49.0
April 15 75.4 49.2
April 16 75.6 49.4
April 17 75.8 49.6
April 18 75.9 49.9
April 19 76.1 50.2
April 20 76.3 50.4
April 21 76.5 50.7
April 22 76.7 51.0
April 23 76.9 51.3
April 24 77.1 51.5
April 25 77.3 51.9
April 26 77.6 52.3
April 27 77.8 52.6
April 28 78.0 52.8
April 29 78.2 53.1
April 30 78.4 53.4
May 1 78.6 53.6
May 2 78.8 53.9
May 3 79.0 54.3
May 4 79.2 54.6
May 5 79.4 54.8
May 6 79.5 55.0
May 7 79.6 55.2
May 8 79.9 55.5
May 9 80.1 55.9
May 10 80.4 56.2
May 11 80.6 56.4
May 12 80.9 56.7
May 13 81.2 57.0
May 14 81.5 57.4
May 15 81.8 57.7
May 16 82.0 58.1
May 17 82.2 58.3
May 18 82.4 58.6
May 19 82.6 58.9
May 20 83.0 59.2
May 21 83.3 59.6
May 22 83.5 60.0
May 23 83.8 60.3
May 24 83.9 60.6
May 25 84.0 60.8
May 26 84.1 61.0
May 27 84.3 61.3
May 28 84.5 61.6
May 29 84.8 61.9
May 30 85.0 62.3
May 31 85.2 62.5
June 1 85.3 62.8
June 2 85.5 63.0
June 3 85.7 63.2
June 4 86.0 63.5
June 5 86.3 63.8
June 6 86.5 64.0
June 7 86.6 64.3
June 8 86.8 64.5
June 9 86.9 64.8
June 10 87.1 65.1
June 11 87.2 65.3
June 12 87.3 65.5
June 13 87.5 65.7
June 14 87.6 65.9
June 15 87.8 66.1
June 16 87.9 66.3
June 17 88.0 66.5
June 18 88.1 66.7
June 19 88.2 66.8
June 20 88.4 66.9
June 21 88.5 67.0
June 22 88.8 67.1
June 23 88.9 67.3
June 24 89.1 67.5
June 25 89.2 67.7
June 26 89.3 67.8
June 27 89.4 68.0
June 28 89.5 68.1
June 29 89.6 68.3
June 30 89.7 68.4
July 1 89.8 68.6
July 2 89.9 68.7
July 3 89.9 68.9
July 4 90.0 69.0
July 5 90.1 69.1
July 6 90.2 69.2
July 7 90.3 69.3
July 8 90.4 69.4
July 9 90.5 69.5
July 10 90.5 69.6
July 11 90.6 69.6
July 12 90.6 69.6
July 13 90.6 69.7
July 14 90.7 69.8
July 15 90.8 69.9
July 16 90.8 70.0
July 17 90.8 70.0
July 18 90.8 70.0
July 19 90.8 70.1
July 20 90.7 70.1
July 21 90.6 70.1
July 22 90.6 70.1
July 23 90.6 70.1
July 24 90.6 70.1
July 25 90.5 70.0
July 26 90.4 69.9
July 27 90.4 69.9
July 28 90.4 69.9
July 29 90.3 69.9
July 30 90.3 69.8
July 31 90.3 69.8
August 1 90.2 69.8
August 2 90.1 69.8
August 3 90.0 69.7
August 4 89.9 69.7
August 5 89.9 69.7
August 6 89.7 69.6
August 7 89.6 69.6
August 8 89.6 69.5
August 9 89.5 69.5
August 10 89.5 69.3
August 11 89.4 69.2
August 12 89.2 69.0
August 13 89.1 68.9
August 14 89.0 68.7
August 15 88.9 68.7
August 16 88.9 68.6
August 17 88.9 68.6
August 18 88.9 68.5
August 19 88.8 68.4
August 20 88.7 68.3
August 21 88.6 68.2
August 22 88.6 68.1
August 23 88.5 67.9
August 24 88.3 67.8
August 25 88.2 67.7
August 26 88.0 67.5
August 27 87.9 67.3
August 28 87.8 67.2
August 29 87.6 67.0
August 30 87.5 66.8
August 31 87.4 66.6
September 1 87.3 66.4
September 2 87.1 66.2
September 3 86.9 66.0
September 4 86.7 65.8
September 5 86.5 65.5
September 6 86.3 65.2
September 7 86.1 65.0
September 8 85.8 64.9
September 9 85.7 64.7
September 10 85.5 64.5
September 11 85.3 64.3
September 12 85.0 64.1
September 13 84.7 63.9
September 14 84.5 63.7
September 15 84.2 63.4
September 16 83.9 63.1
September 17 83.5 62.7
September 18 83.3 62.2
September 19 83.0 61.9
September 20 82.7 61.5
September 21 82.5 61.2
September 22 82.3 60.9
September 23 82.0 60.6
September 24 81.7 60.3
September 25 81.3 59.9
September 26 81.0 59.6
September 27 80.7 59.4
September 28 80.4 59.1
September 29 80.0 58.8
September 30 79.8 58.5
October 1 79.5 58.1
October 2 79.2 57.6
October 3 78.9 57.1
October 4 78.6 56.6
October 5 78.2 56.2
October 6 78.0 55.8
October 7 77.7 55.3
October 8 77.5 54.8
October 9 77.1 54.4
October 10 76.8 53.8
October 11 76.5 53.4
October 12 76.2 52.9
October 13 75.9 52.4
October 14 75.6 52.1
October 15 75.4 51.7
October 16 75.1 51.4
October 17 74.8 51.0
October 18 74.6 50.7
October 19 74.3 50.3
October 20 74.0 49.9
October 21 73.7 49.5
October 22 73.3 49.1
October 23 73.0 48.7
October 24 72.8 48.3
October 25 72.5 47.9
October 26 72.1 47.4
October 27 71.8 46.8
October 28 71.5 46.4
October 29 71.1 45.9
October 30 70.7 45.5
October 31 70.3 45.1
November 1 69.9 44.8
November 2 69.6 44.4
November 3 69.3 44.2
November 4 68.9 43.7
November 5 68.5 43.4
November 6 68.1 43.1
November 7 67.8 42.8
November 8 67.5 42.6
November 9 67.2 42.4
November 10 66.9 42.0
November 11 66.7 41.7
November 12 66.3 41.4
November 13 66.0 41.0
November 14 65.8 40.7
November 15 65.5 40.4
November 16 65.2 40.2
November 17 65.0 39.9
November 18 64.7 39.7
November 19 64.5 39.4
November 20 64.2 39.1
November 21 64.0 38.9
November 22 63.7 38.7
November 23 63.3 38.4
November 24 63.1 38.2
November 25 62.8 38.0
November 26 62.5 37.9
November 27 62.2 37.7
November 28 62.0 37.5
November 29 61.8 37.4
November 30 61.6 37.4
December 1 61.4 37.3
December 2 61.1 37.1
December 3 61.0 37.0
December 4 60.9 36.9
December 5 60.6 36.7
December 6 60.4 36.5
December 7 60.1 36.3
December 8 59.9 36.1
December 9 59.7 36.0
December 10 59.6 35.9
December 11 59.4 35.7
December 12 59.0 35.6
December 13 58.7 35.4
December 14 58.4 35.3
December 15 58.2 35.3
December 16 58.0 35.2
December 17 57.8 35.1
December 18 57.7 35.1
December 19 57.6 35.1
December 20 57.4 35.0
December 21 57.2 34.9
December 22 57.1 34.8
December 23 57.1 34.7
December 24 57.1 34.7
December 25 57.0 34.5
December 26 56.9 34.5
December 27 56.8 34.4
December 28 56.7 34.4
December 29 56.8 34.3
December 30 56.8 34.4
December 31 56.8 34.4
Weather Station Details
Years Station Coordinates
1901–2024 Sumter location
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