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

* WHAT...Heat index values between 95 and 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 may cause heat illnesses.

Sand Creek Near Ranch A, Near Beulah, Wy Historical Data

Historical Data


Streamflow Range


Date Average 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 26.91
01-02 27.2
01-03 27.31
01-04 27.17
01-05 27.17
01-06 26.91
01-07 26.37
01-08 26.63
01-09 25.9
01-10 26.91
01-11 26.64
01-12 26.26
01-13 26.17
01-14 25.83
01-15 25.14
01-16 25.04
01-17 24.86
01-18 26.21
01-19 26.3
01-20 26.16
01-21 25.79
01-22 24.46
01-23 24.01
01-24 23.68
01-25 22.5
01-26 22.56
01-27 22.95
01-28 23.04
01-29 22.64
01-30 24.1
01-31 23.73
02-01 23.41
02-02 23.42
02-03 23.73
02-04 23.46
02-05 24.71
02-06 25.23
02-07 25.1
02-08 24.96
02-09 25.2
02-10 25.53
02-11 25.84
02-12 25.96
02-13 26.21
02-14 26.24
02-15 26.24
02-16 25.99
02-17 25.94
02-18 25.94
02-19 26.36
02-20 26.61
02-21 26.36
02-22 26.24
02-23 26.36
02-24 26.24
02-25 26.34
02-26 26.34
02-27 26.24
02-28 26.11
02-29 29.1
03-01 25.84
03-02 25.99
03-03 26.11
03-04 26.49
03-05 25.99
03-06 26.49
03-07 26.99
03-08 26.49
03-09 25.99
03-10 26.13
03-11 25.9
03-12 25.9
03-13 25.65
03-14 25.9
03-15 25.9
03-16 25.79
03-17 25.66
03-18 26.79
03-19 26.09
03-20 25.34
03-21 25.64
03-22 25.68
03-23 25.97
03-24 26.08
03-25 25.88
03-26 25.89
03-27 26.34
03-28 25.91
03-29 28.02
03-30 27.46
03-31 27.0
04-01 27.24
04-02 27.56
04-03 27.33
04-04 27.23
04-05 27.68
04-06 27.68
04-07 27.47
04-08 27.47
04-09 28.44
04-10 28.66
04-11 28.12
04-12 28.33
04-13 28.42
04-14 28.43
04-15 27.98
04-16 28.23
04-17 27.98
04-18 28.48
04-19 28.24
04-20 28.46
04-21 29.76
04-22 30.79
04-23 31.41
04-24 33.51
04-25 34.14
04-26 32.19
04-27 33.41
04-28 35.96
04-29 34.6
04-30 33.04
05-01 32.74
05-02 35.77
05-03 35.23
05-04 35.77
05-05 36.23
05-06 37.18
05-07 37.58
05-08 41.23
05-09 37.69
05-10 39.72
05-11 39.84
05-12 39.16
05-13 38.93
05-14 39.32
05-15 37.3
05-16 36.7
05-17 37.24
05-18 37.52
05-19 39.55
05-20 39.24
05-21 51.34
05-22 57.95
05-23 52.76
05-24 47.97
05-25 44.65
05-26 43.92
05-27 45.61
05-28 45.12
05-29 44.84
05-30 45.23
05-31 44.7
06-01 43.56
06-02 42.7
06-03 48.9
06-04 43.9
06-05 42.2
06-06 42.0
06-07 41.74
06-08 41.34
06-09 40.92
06-10 40.59
06-11 40.29
06-12 38.86
06-13 39.62
06-14 39.54
06-15 39.87
06-16 39.26
06-17 39.15
06-18 38.55
06-19 38.96
06-20 39.64
06-21 38.64
06-22 37.74
06-23 37.61
06-24 37.39
06-25 38.2
06-26 37.46
06-27 36.89
06-28 37.0
06-29 36.56
06-30 35.99
07-01 36.22
07-02 35.72
07-03 35.28
07-04 35.17
07-05 34.26
07-06 34.25
07-07 35.54
07-08 35.53
07-09 35.09
07-10 33.99
07-11 33.69
07-12 32.84
07-13 32.96
07-14 33.49
07-15 33.88
07-16 32.49
07-17 33.18
07-18 34.02
07-19 33.18
07-20 32.88
07-21 32.37
07-22 32.18
07-23 32.89
07-24 32.77
07-25 33.08
07-26 32.28
07-27 32.15
07-28 33.46
07-29 32.68
07-30 31.21
07-31 31.79
08-01 31.17
08-02 32.43
08-03 30.58
08-04 30.78
08-05 30.48
08-06 30.57
08-07 29.63
08-08 27.72
08-09 28.2
08-10 28.42
08-11 30.88
08-12 29.74
08-13 29.87
08-14 29.64
08-15 30.87
08-16 30.26
08-17 28.04
08-18 27.9
08-19 29.59
08-20 29.35
08-21 29.32
08-22 31.54
08-23 30.97
08-24 29.82
08-25 31.26
08-26 30.76
08-27 30.66
08-28 29.29
08-29 30.36
08-30 31.06
08-31 29.92
09-01 30.35
09-02 29.96
09-03 29.67
09-04 29.46
09-05 29.57
09-06 29.47
09-07 29.37
09-08 29.78
09-09 29.96
09-10 28.52
09-11 29.37
09-12 29.57
09-13 29.47
09-14 29.07
09-15 29.17
09-16 28.29
09-17 29.27
09-18 29.27
09-19 29.08
09-20 29.26
09-21 28.19
09-22 29.07
09-23 29.27
09-24 29.65
09-25 29.45
09-26 29.36
09-27 29.37
09-28 29.27
09-29 29.17
09-30 29.47
10-01 29.8
10-02 29.8
10-03 29.8
10-04 30.26
10-05 30.47
10-06 29.18
10-07 29.66
10-08 29.14
10-09 29.37
10-10 29.37
10-11 29.26
10-12 29.48
10-13 29.27
10-14 29.16
10-15 29.04
10-16 28.99
10-17 28.71
10-18 28.6
10-19 28.6
10-20 28.98
10-21 29.74
10-22 29.16
10-23 28.82
10-24 28.71
10-25 28.6
10-26 28.92
10-27 28.62
10-28 28.18
10-29 28.4
10-30 28.07
10-31 28.29
11-01 28.19
11-02 28.29
11-03 28.61
11-04 28.4
11-05 29.1
11-06 27.65
11-07 27.66
11-08 27.3
11-09 27.66
11-10 27.77
11-11 27.54
11-12 27.16
11-13 27.66
11-14 27.73
11-15 27.96
11-16 27.96
11-17 27.56
11-18 27.07
11-19 27.32
11-20 27.45
11-21 27.61
11-22 27.12
11-23 27.23
11-24 27.88
11-25 28.13
11-26 27.23
11-27 26.51
11-28 27.43
11-29 27.46
11-30 27.34
12-01 27.56
12-02 27.34
12-03 27.44
12-04 27.43
12-05 27.02
12-06 27.5
12-07 26.4
12-08 27.44
12-09 27.44
12-10 27.13
12-11 27.02
12-12 27.12
12-13 26.5
12-14 26.25
12-15 26.15
12-16 26.89
12-17 26.88
12-18 27.38
12-19 26.43
12-20 26.01
12-21 27.25
12-22 27.5
12-23 27.01
12-24 26.89
12-25 27.14
12-26 26.16
12-27 27.46
12-28 26.53
12-29 27.46
12-30 27.59
12-31 27.57

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index