Overview Realtime Historical Map View
Extreme Heat Warning
2026-08-23T19:00:00-05:00

* WHAT...Dangerously hot conditions with temperatures up to 107 and heat index values up to 110 are expected Sunday afternoon. Temperatures up to 105 are expected Monday through Wednesday. * WHERE...Bastrop, Burnet, Caldwell, Fayette, Gonzales, Lavaca, Lee, Llano, Travis, and Williamson Counties. * WHEN...For the Extreme Heat Warning, until 7 PM CDT Sunday. For the Heat Advisory, from 7 PM Sunday to 7 PM CDT Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.

Lavaca Rv At Hallettsville Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019
01-01 0.98
01-02 1.01
01-03 0.78
01-04 0.74
01-05 1.95
01-06 0.87
01-07 1.12
01-08 297.47
01-09 7.87
01-10 5.99
01-11 5.09
01-12 3.46
01-13 1.95
01-14 1.91
01-15 1.67
01-16 1.44
01-17 1.39
01-18 1.62
01-19 1.16
01-20 1.15
01-21 1.03
01-22 1.62
01-23 211.0
01-24 209.28
01-25 600.53
01-26 51.77
01-27 13.5
01-28 8.62
01-29 6.9
01-30 6.29
01-31 3.46
02-01 281.62
02-02 17.41
02-03 14.28
02-04 77.49
02-05 13.57
02-06 5.91
02-07 6.51
02-08 3.21
02-09 13.77
02-10 6.52
02-11 3.92
02-12 3.83
02-13 3.23
02-14 3.44
02-15 3.2
02-16 2.89
02-17 3.14
02-18 2.12
02-19 2.07
02-20 1.98
02-21 2.16
02-22 2.05
02-23 1.75
02-24 1.84
02-25 1.62
02-26 1.55
02-27 1.63
02-28 1.59
02-29 2.33
03-01 1.57
03-02 1.64
03-03 1.62
03-04 1.58
03-05 1.46
03-06 1.43
03-07 1.31
03-08 1.82
03-09 1.95
03-10 1.42
03-11 1.75
03-12 2.53
03-13 2.37
03-14 2.55
03-15 2.32
03-16 2.44
03-17 2.22
03-18 2.63
03-19 2.32
03-20 2.61
03-21 2.35
03-22 26.9
03-23 15.49
03-24 5.98
03-25 4.11
03-26 3.73
03-27 3.28
03-28 2.42
03-29 2.61
03-30 2.31
03-31 1.97
04-01 1.83
04-02 1.59
04-03 1.67
04-04 86.89
04-05 183.97
04-06 9.0
04-07 379.97
04-08 108.09
04-09 18.02
04-10 10.39
04-11 14.12
04-12 4.82
04-13 537.61
04-14 12.06
04-15 6.54
04-16 4.79
04-17 3.22
04-18 5.86
04-19 4.74
04-20 3.41
04-21 18.39
04-22 28.04
04-23 69.47
04-24 10.92
04-25 64.61
04-26 6.6
04-27 11.97
04-28 12.17
04-29 19.03
04-30 10.81
05-01 588.46
05-02 369.82
05-03 17.39
05-04 277.12
05-05 22.41
05-06 9.25
05-07 7.87
05-08 5.43
05-09 6.15
05-10 301.61
05-11 40.35
05-12 11.16
05-13 7.18
05-14 813.75
05-15 48.19
05-16 14.73
05-17 237.87
05-18 44.06
05-19 931.64
05-20 39.2
05-21 10.48
05-22 7.51
05-23 273.41
05-24 643.9
05-25 78.88
05-26 39.96
05-27 29.54
05-28 12.68
05-29 26.51
05-30 15.42
05-31 9.2
06-01 5.18
06-02 6.49
06-03 16.21
06-04 178.41
06-05 10.98
06-06 404.86
06-07 27.71
06-08 10.14
06-09 5.07
06-10 3.91
06-11 2.55
06-12 2.16
06-13 6.34
06-14 2.91
06-15 9.51
06-16 38.29
06-17 27.5
06-18 7.47
06-19 4.35
06-20 3.17
06-21 5.5
06-22 3.6
06-23 2.72
06-24 41.1
06-25 6.18
06-26 13.73
06-27 18.04
06-28 4.91
06-29 3.07
06-30 8.93
07-01 3.61
07-02 2.92
07-03 2.16
07-04 10.68
07-05 2.73
07-06 11.9
07-07 4.72
07-08 3.27
07-09 0.99
07-10 47.0
07-11 9.3
07-12 5.48
07-13 5.27
07-14 3.24
07-15 2.56
07-16 3.85
07-17 2.84
07-18 2.15
07-19 1.87
07-20 2.37
07-21 1.94
07-22 1.75
07-23 2.1
07-24 1.57
07-25 1.4
07-26 1.24
07-27 1.29
07-28 1.1
07-29 0.96
07-30 0.99
07-31 1.19
08-01 1.46
08-02 0.96
08-03 1.09
08-04 1.1
08-05 1.41
08-06 1.35
08-07 1.47
08-08 1.27
08-09 1.7
08-10 1.17
08-11 1.09
08-12 0.89
08-13 1.04
08-14 1.17
08-15 1.09
08-16 1.7
08-17 0.92
08-18 1.01
08-19 1.11
08-20 0.92
08-21 0.84
08-22 0.83
08-23 1.06
08-24 0.46
08-25 0.5
08-26 0.4
08-27 0.6
08-28 0.58
08-29 0.46
08-30 0.5
08-31 0.39
09-01 0.35
09-02 0.29
09-03 0.28
09-04 0.25
09-05 0.23
09-06 0.18
09-07 0.2
09-08 0.24
09-09 0.22
09-10 0.27
09-11 0.25
09-12 0.22
09-13 0.21
09-14 0.17
09-15 0.17
09-16 0.19
09-17 0.14
09-18 0.14
09-19 0.19
09-20 0.26
09-21 0.18
09-22 1.77
09-23 4.42
09-24 0.29
09-25 0.16
09-26 0.12
09-27 0.16
09-28 0.14
09-29 4.8
09-30 0.19
10-01 0.28
10-02 0.4
10-03 0.26
10-04 0.2
10-05 0.16
10-06 0.18
10-07 0.18
10-08 0.16
10-09 0.16
10-10 0.15
10-11 0.17
10-12 0.16
10-13 0.23
10-14 0.29
10-15 190.94
10-16 6.55
10-17 4.17
10-18 1.69
10-19 1.39
10-20 1.45
10-21 1.07
10-22 0.64
10-23 0.53
10-24 0.7
10-25 6.02
10-26 0.73
10-27 0.38
10-28 4.85
10-29 1.97
10-30 7.68
10-31 1.47
11-01 0.7
11-02 0.5
11-03 0.4
11-04 0.54
11-05 0.53
11-06 0.94
11-07 0.7
11-08 0.56
11-09 0.69
11-10 0.46
11-11 0.42
11-12 0.46
11-13 2.09
11-14 0.41
11-15 0.35
11-16 0.38
11-17 0.35
11-18 0.38
11-19 0.36
11-20 0.37
11-21 0.37
11-22 0.36
11-23 0.35
11-24 0.34
11-25 0.37
11-26 7.67
11-27 1.56
11-28 4.54
11-29 2.1
11-30 6.39
12-01 0.93
12-02 0.89
12-03 0.88
12-04 0.78
12-05 0.79
12-06 0.76
12-07 0.61
12-08 0.7
12-09 0.64
12-10 0.85
12-11 2.15
12-12 0.85
12-13 0.72
12-14 0.7
12-15 0.71
12-16 0.73
12-17 0.67
12-18 0.69
12-19 0.8
12-20 2.1
12-21 1.61
12-22 1.38
12-23 1.07
12-24 0.87
12-25 1.08
12-26 0.8
12-27 0.8
12-28 0.73
12-29 0.78
12-30 0.85
12-31 0.97

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index