Overview Realtime Historical Map View
Heat Advisory
2026-07-16T21:00:00-06:00

* WHAT...Heat index values up to 105. * WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming. * WHEN...Until 9 PM MDT /10 PM CDT/ Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Belle Fourche River Below Moorcroft, Wy Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
02-25 87.7
03-07 1480.0
03-08 1590.0
03-09 1120.0
03-10 606.0
03-11 617.0
03-12 230.0
03-13 154.0
03-14 102.0
03-15 54.77
03-16 43.83
03-17 45.23
03-18 40.7
03-19 28.32
03-20 28.66
03-21 25.05
03-22 10.58
03-23 19.05
03-24 19.57
03-25 18.67
03-26 18.89
03-27 22.93
03-28 20.41
03-29 30.85
03-30 54.18
03-31 47.24
04-01 38.13
04-02 34.1
04-03 27.93
04-04 24.99
04-05 24.17
04-06 25.15
04-07 23.99
04-08 22.2
04-09 16.18
04-10 20.58
04-11 24.89
04-12 34.15
04-13 29.51
04-14 25.99
04-15 24.75
04-16 24.79
04-17 20.46
04-18 18.42
04-19 17.0
04-20 16.98
04-21 14.67
04-22 14.61
04-23 14.73
04-24 13.92
04-25 14.28
04-26 14.93
04-27 17.51
04-28 18.71
04-29 26.83
04-30 39.28
05-01 42.49
05-02 23.26
05-03 22.22
05-04 20.54
05-05 17.3
05-06 15.68
05-07 14.23
05-08 13.48
05-09 18.94
05-10 15.85
05-11 15.1
05-12 26.64
05-13 26.01
05-14 21.83
05-15 17.11
05-16 18.63
05-17 33.48
05-18 23.5
05-19 19.11
05-20 29.46
05-21 39.63
05-22 62.64
05-23 106.24
05-24 92.67
05-25 99.66
05-26 116.37
05-27 66.99
05-28 104.79
05-29 111.7
05-30 353.08
05-31 131.11
06-01 111.83
06-02 77.34
06-03 60.62
06-04 46.2
06-05 44.12
06-06 54.19
06-07 40.19
06-08 30.35
06-09 29.01
06-10 23.06
06-11 24.06
06-12 31.8
06-13 25.01
06-14 21.42
06-15 46.78
06-16 38.46
06-17 22.56
06-18 18.4
06-19 23.11
06-20 27.16
06-21 19.69
06-22 18.62
06-23 24.32
06-24 19.53
06-25 19.67
06-26 39.71
06-27 72.31
06-28 20.9
06-29 22.57
06-30 20.66
07-01 22.15
07-02 19.58
07-03 20.6
07-04 17.31
07-05 14.61
07-06 12.87
07-07 18.19
07-08 18.2
07-09 15.31
07-10 13.42
07-11 19.0
07-12 13.31
07-13 10.64
07-14 11.52
07-15 10.31
07-16 13.74
07-17 14.39
07-18 17.65
07-19 17.33
07-20 16.67
07-21 14.65
07-22 10.94
07-23 8.78
07-24 14.07
07-25 10.73
07-26 7.76
07-27 23.84
07-28 30.33
07-29 18.61
07-30 12.8
07-31 13.93
08-01 28.51
08-02 9.9
08-03 8.22
08-04 9.32
08-05 9.52
08-06 11.39
08-07 9.51
08-08 10.27
08-09 8.73
08-10 10.03
08-11 14.63
08-12 14.96
08-13 14.76
08-14 15.69
08-15 9.2
08-16 8.35
08-17 7.3
08-18 7.24
08-19 8.04
08-20 8.81
08-21 8.81
08-22 9.0
08-23 8.14
08-24 6.93
08-25 9.01
08-26 9.17
08-27 20.54
08-28 19.37
08-29 16.03
08-30 13.1
08-31 6.81
09-01 7.68
09-02 6.89
09-03 5.96
09-04 5.94
09-05 5.54
09-06 5.73
09-07 5.25
09-08 5.25
09-09 5.15
09-10 4.63
09-11 4.43
09-12 5.09
09-13 5.65
09-14 5.81
09-15 6.25
09-16 8.12
09-17 6.68
09-18 6.34
09-19 5.85
09-20 5.65
09-21 5.39
09-22 5.25
09-23 5.12
09-24 5.59
09-25 5.79
09-26 10.91
09-27 9.06
09-28 6.75
09-29 7.69
09-30 7.05
10-01 7.38
10-02 8.32
10-03 9.45
10-04 7.62
10-05 7.41
10-06 8.41
10-07 7.88
10-08 11.31
10-09 22.85
10-10 29.14
10-11 20.37
10-12 14.1
10-13 17.89
10-14 19.49
10-15 20.91
10-16 23.64
10-17 20.56
10-18 16.16
10-19 12.97
10-20 15.88
10-21 13.04
10-22 11.81
10-23 10.22
10-24 11.43
10-25 11.52
10-26 10.58
10-27 10.27
10-28 10.32
10-29 10.64
10-30 8.76
10-31 8.79
11-01 8.62
11-02 7.83
11-03 7.92
11-04 7.82
11-05 7.99
11-06 8.04
11-07 8.17
11-08 8.71
11-09 8.36
11-10 7.66
11-11 9.08
11-12 8.97
11-13 10.03
11-14 8.98
11-15 9.06
11-16 8.83
11-17 8.87
11-18 10.21
11-19 11.32
11-20 12.12
11-21 10.4
11-22 12.51
11-23 12.23
11-24 10.77
11-25 13.41
11-26 10.7
11-27 13.05
11-28 12.0
11-29 17.6
12-01 14.0
12-02 14.0
12-03 14.0

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index