Overview Realtime Historical Map View
Heat Advisory
2026-07-19T21:00:00-06:00

* WHAT...Peak afternoon heat index values of 95 to 105. * WHERE...Portions of northwestern, south central, and southwestern South Dakota and northeast Wyoming. * WHEN...Until 9 PM MDT /10 PM CDT/ Sunday. * IMPACTS...Hot temperatures may cause heat illnesses.

Cleghorn Springs At Rapid City, Sd Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011
01-01 12.59
01-02 12.71
01-03 12.67
01-04 12.5
01-05 12.21
01-06 12.58
01-07 12.39
01-08 12.38
01-09 12.29
01-10 12.15
01-11 12.22
01-12 12.1
01-13 12.23
01-14 12.29
01-15 12.12
01-16 11.95
01-17 12.12
01-18 12.14
01-19 12.11
01-20 12.05
01-21 12.18
01-22 12.08
01-23 11.95
01-24 11.9
01-25 11.98
01-26 11.94
01-27 12.06
01-28 11.98
01-29 12.12
01-30 12.04
01-31 11.94
02-01 12.16
02-02 12.25
02-03 12.29
02-04 11.73
02-05 11.84
02-06 11.96
02-07 11.92
02-08 12.09
02-09 12.09
02-10 12.01
02-11 11.91
02-12 11.93
02-13 11.87
02-14 11.81
02-15 12.01
02-16 12.04
02-17 11.88
02-18 11.79
02-19 11.75
02-20 11.74
02-21 11.75
02-22 11.62
02-23 11.61
02-24 11.8
02-25 11.47
02-26 11.58
02-27 11.89
02-28 11.71
02-29 11.9
03-01 11.89
03-02 11.69
03-03 11.69
03-04 11.79
03-05 11.87
03-06 11.81
03-07 11.8
03-08 11.81
03-09 11.85
03-10 11.87
03-11 11.84
03-12 11.97
03-13 12.01
03-14 11.97
03-15 11.86
03-16 11.8
03-17 11.94
03-18 11.83
03-19 11.95
03-20 11.89
03-21 11.96
03-22 11.95
03-23 12.3
03-24 12.11
03-25 12.19
03-26 12.22
03-27 12.09
03-28 12.28
03-29 12.18
03-30 12.16
03-31 12.08
04-01 12.43
04-02 12.2
04-03 12.16
04-04 12.19
04-05 12.25
04-06 12.25
04-07 12.42
04-08 12.29
04-09 12.2
04-10 12.19
04-11 12.17
04-12 12.1
04-13 12.1
04-14 12.21
04-15 12.21
04-16 12.26
04-17 12.13
04-18 12.04
04-19 12.01
04-20 12.08
04-21 12.33
04-22 12.6
04-23 12.8
04-24 12.81
04-25 12.36
04-26 12.42
04-27 12.42
04-28 12.44
04-29 12.4
04-30 12.3
05-01 12.4
05-02 12.31
05-03 12.4
05-04 12.27
05-05 12.19
05-06 12.22
05-07 12.24
05-08 12.23
05-09 12.46
05-10 12.58
05-11 12.33
05-12 12.46
05-13 12.7
05-14 12.76
05-15 12.77
05-16 12.83
05-17 12.63
05-18 12.64
05-19 12.39
05-20 12.19
05-21 12.32
05-22 12.26
05-23 12.27
05-24 12.33
05-25 12.51
05-26 12.46
05-27 12.23
05-28 12.44
05-29 12.56
05-30 12.57
05-31 12.57
06-01 12.37
06-02 12.49
06-03 12.4
06-04 12.47
06-05 12.42
06-06 12.41
06-07 12.36
06-08 12.49
06-09 12.48
06-10 12.31
06-11 12.24
06-12 12.05
06-13 12.37
06-14 12.24
06-15 12.31
06-16 12.34
06-17 12.33
06-18 12.55
06-19 12.29
06-20 12.19
06-21 12.42
06-22 12.35
06-23 12.39
06-24 12.44
06-25 12.29
06-26 12.5
06-27 12.31
06-28 12.23
06-29 12.25
06-30 12.12
07-01 12.21
07-02 12.21
07-03 12.16
07-04 12.19
07-05 12.09
07-06 12.07
07-07 12.0
07-08 11.97
07-09 12.05
07-10 12.09
07-11 12.16
07-12 12.01
07-13 11.85
07-14 12.05
07-15 12.12
07-16 12.15
07-17 12.07
07-18 12.35
07-19 12.22
07-20 12.18
07-21 12.22
07-22 12.35
07-23 12.48
07-24 12.33
07-25 12.49
07-26 12.25
07-27 12.28
07-28 12.41
07-29 12.25
07-30 12.14
07-31 12.45
08-01 12.46
08-02 12.56
08-03 12.18
08-04 12.04
08-05 12.1
08-06 12.1
08-07 12.38
08-08 11.98
08-09 11.93
08-10 11.71
08-11 11.92
08-12 11.85
08-13 11.84
08-14 11.76
08-15 11.78
08-16 11.65
08-17 11.63
08-18 11.35
08-19 11.61
08-20 11.55
08-21 12.06
08-22 12.2
08-23 12.08
08-24 12.11
08-25 12.07
08-26 12.23
08-27 12.24
08-28 12.17
08-29 12.18
08-30 12.11
08-31 11.87
09-01 12.02
09-02 12.01
09-03 11.97
09-04 11.94
09-05 11.91
09-06 11.92
09-07 11.89
09-08 11.9
09-09 11.88
09-10 11.85
09-11 11.77
09-12 11.8
09-13 11.95
09-14 11.96
09-15 11.94
09-16 11.94
09-17 12.09
09-18 12.04
09-19 11.99
09-20 11.99
09-21 11.92
09-22 11.87
09-23 12.06
09-24 11.89
09-25 12.07
09-26 12.07
09-27 12.03
09-28 11.8
09-29 11.73
09-30 12.3
10-01 12.32
10-02 11.9
10-03 11.92
10-04 12.0
10-05 11.96
10-06 12.15
10-07 12.38
10-08 12.27
10-09 12.26
10-10 12.51
10-11 12.43
10-12 12.58
10-13 12.67
10-14 12.64
10-15 12.84
10-16 12.61
10-17 12.75
10-18 12.71
10-19 12.75
10-20 12.93
10-21 13.36
10-22 12.76
10-23 12.65
10-24 12.8
10-25 12.81
10-26 12.81
10-27 12.86
10-28 12.88
10-29 12.71
10-30 12.65
10-31 12.71
11-01 12.87
11-02 12.86
11-03 12.89
11-04 12.86
11-05 12.75
11-06 12.6
11-07 12.62
11-08 12.56
11-09 12.52
11-10 12.91
11-11 12.81
11-12 12.78
11-13 12.8
11-14 12.83
11-15 12.68
11-16 12.56
11-17 12.53
11-18 12.45
11-19 12.47
11-20 12.52
11-21 12.77
11-22 12.8
11-23 12.78
11-24 12.64
11-25 12.75
11-26 12.84
11-27 12.85
11-28 12.79
11-29 12.88
11-30 12.78
12-01 13.06
12-02 13.08
12-03 13.11
12-04 13.01
12-05 13.06
12-06 13.21
12-07 13.04
12-08 13.13
12-09 13.19
12-10 13.03
12-11 13.03
12-12 12.99
12-13 13.07
12-14 12.87
12-15 12.91
12-16 12.78
12-17 13.02
12-18 12.86
12-19 12.8
12-20 12.34
12-21 12.38
12-22 12.66
12-23 12.72
12-24 12.67
12-25 12.85
12-26 12.88
12-27 12.8
12-28 12.9
12-29 12.54
12-30 12.77
12-31 12.62

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index