Overview Realtime Historical Map View
Heat Advisory
2026-07-21T20:00:00-05:00

* WHAT...Dangerous heat and humidity. Heat index values well over 100 degrees. * WHERE...Across Middle Tennessee. * WHEN...From 10 AM this morning to 8 PM CDT Tuesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Calfkiller River At Hwy 111 Below Sparta, Tn Historical Data

Historical Data


Streamflow Range


Date Average 2017 2016 2015 2014 2013 2012 2011
01-01 730.8
01-02 713.2
01-03 700.4
01-04 699.0
01-05 844.6
01-06 634.4
01-07 575.4
01-08 497.8
01-09 461.0
01-10 488.8
01-11 439.5
01-12 1011.4
01-13 1049.0
01-14 936.6
01-15 1196.6
01-16 1072.2
01-17 1416.0
01-18 799.2
01-19 609.2
01-20 536.4
01-21 486.0
01-22 640.0
01-23 957.8
01-24 1016.8
01-25 699.2
01-26 567.5
01-27 618.5
01-28 856.4
01-29 672.2
01-30 566.0
01-31 1381.2
02-01 816.6
02-02 930.2
02-03 1127.2
02-04 2248.2
02-05 1178.0
02-06 1090.6
02-07 826.6
02-08 675.4
02-09 589.8
02-10 523.2
02-11 487.2
02-12 475.8
02-13 440.6
02-14 418.0
02-15 411.4
02-16 1018.6
02-17 974.8
02-18 590.6
02-19 411.25
02-20 573.0
02-21 551.4
02-22 1869.2
02-23 1304.8
02-24 994.0
02-25 846.6
02-26 688.6
02-27 604.8
02-28 524.6
02-29 531.5
03-01 470.6
03-02 513.0
03-03 568.2
03-04 581.25
03-05 1179.8
03-06 1453.4
03-07 961.2
03-08 733.4
03-09 675.6
03-10 739.6
03-11 735.2
03-12 1004.0
03-13 786.0
03-14 630.8
03-15 614.4
03-16 585.8
03-17 536.4
03-18 497.8
03-19 1165.83
03-20 968.0
03-21 635.5
03-22 537.0
03-23 475.67
03-24 431.67
03-25 455.17
03-26 461.33
03-27 522.33
03-28 654.33
03-29 657.33
03-30 611.5
03-31 693.8
04-01 680.5
04-02 617.0
04-03 507.0
04-04 934.5
04-05 970.33
04-06 680.0
04-07 627.5
04-08 647.83
04-09 458.6
04-10 472.67
04-11 533.33
04-12 515.17
04-13 645.17
04-14 476.67
04-15 457.4
04-16 500.6
04-17 495.8
04-18 443.6
04-19 398.4
04-20 647.4
04-21 572.5
04-22 452.5
04-23 1842.5
04-24 1430.67
04-25 621.17
04-26 505.33
04-27 411.83
04-28 777.17
04-29 1323.33
04-30 874.33
05-01 842.43
05-02 591.33
05-03 575.33
05-04 680.67
05-05 727.43
05-06 1345.43
05-07 883.0
05-08 489.0
05-09 432.57
05-10 368.43
05-11 323.71
05-12 481.71
05-13 345.57
05-14 265.83
05-15 279.86
05-16 292.86
05-17 246.57
05-18 215.29
05-19 195.14
05-20 186.43
05-21 185.14
05-22 212.86
05-23 221.43
05-24 186.0
05-25 169.86
05-26 155.71
05-27 162.57
05-28 170.57
05-29 255.29
05-30 181.86
05-31 182.0
06-01 206.5
06-02 229.14
06-03 185.14
06-04 158.29
06-05 143.71
06-06 244.43
06-07 216.86
06-08 167.71
06-09 140.29
06-10 126.33
06-11 161.33
06-12 188.4
06-13 141.2
06-14 201.2
06-15 169.83
06-16 137.0
06-17 128.5
06-18 107.67
06-19 147.4
06-20 172.0
06-21 176.8
06-22 182.0
06-23 683.4
06-24 435.6
06-25 337.2
06-26 237.4
06-27 268.8
06-28 231.2
06-29 213.4
06-30 210.6
07-01 345.4
07-02 239.8
07-03 1282.4
07-04 2015.4
07-05 733.83
07-06 811.5
07-07 1282.0
07-08 661.8
07-09 410.6
07-10 318.17
07-11 253.17
07-12 227.17
07-13 199.17
07-14 181.67
07-15 403.17
07-16 293.33
07-17 286.5
07-18 188.83
07-19 154.5
07-20 192.33
07-21 196.5
07-22 201.83
07-23 159.67
07-24 172.5
07-25 147.5
07-26 124.33
07-27 108.33
07-28 106.5
07-29 96.33
07-30 88.17
07-31 84.5
08-01 79.0
08-02 75.17
08-03 71.17
08-04 69.0
08-05 69.33
08-06 165.5
08-07 133.83
08-08 92.8
08-09 97.6
08-10 290.0
08-11 216.0
08-12 244.5
08-13 161.83
08-14 122.83
08-15 99.0
08-16 84.83
08-17 81.83
08-18 82.0
08-19 81.8
08-20 85.0
08-21 82.0
08-22 77.8
08-23 149.33
08-24 136.0
08-25 152.2
08-26 130.33
08-27 99.17
08-28 83.5
08-29 59.2
08-30 59.0
08-31 70.6
09-01 96.67
09-02 78.8
09-03 294.83
09-04 481.5
09-05 275.0
09-06 212.83
09-07 299.83
09-08 208.5
09-09 157.17
09-10 125.0
09-11 109.67
09-12 112.0
09-13 105.83
09-14 96.17
09-15 87.5
09-16 79.0
09-17 75.83
09-18 202.67
09-19 390.0
09-20 202.8
09-21 145.2
09-22 151.5
09-23 119.6
09-24 95.2
09-25 86.67
09-26 87.0
09-27 77.17
09-28 69.83
09-29 66.17
09-30 112.0
10-01 87.0
10-02 157.83
10-03 249.67
10-04 234.83
10-05 192.5
10-06 158.2
10-07 121.67
10-08 234.0
10-09 168.67
10-10 130.83
10-11 373.0
10-12 451.0
10-13 257.33
10-14 304.33
10-15 771.17
10-16 454.0
10-17 388.67
10-18 275.5
10-19 238.0
10-20 226.6
10-21 188.6
10-22 165.33
10-23 147.0
10-24 129.17
10-25 122.17
10-26 108.17
10-27 104.83
10-28 103.17
10-29 99.2
10-30 143.8
10-31 130.0
11-01 110.5
11-02 104.33
11-03 105.83
11-04 104.0
11-05 101.0
11-06 547.67
11-07 552.5
11-08 273.67
11-09 216.33
11-10 220.33
11-11 201.83
11-12 175.5
11-13 185.67
11-14 193.83
11-15 164.5
11-16 143.67
11-17 335.17
11-18 740.4
11-19 376.6
11-20 293.0
11-21 292.17
11-22 509.83
11-23 364.33
11-24 305.0
11-25 268.5
11-26 230.33
11-27 320.0
11-28 745.4
11-29 1648.17
11-30 1108.17
12-01 983.33
12-02 1336.83
12-03 824.5
12-04 508.83
12-05 415.33
12-06 452.2
12-07 1224.83
12-08 940.0
12-09 785.0
12-10 483.4
12-11 911.33
12-12 581.83
12-13 579.0
12-14 470.4
12-15 423.0
12-16 405.0
12-17 513.8
12-18 643.6
12-19 562.2
12-20 442.25
12-21 754.5
12-22 831.6
12-23 1254.5
12-24 1407.0
12-25 1574.6
12-26 3126.0
12-27 1529.4
12-28 1508.0
12-29 1126.0
12-30 1234.0
12-31 899.2

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index