Overview Realtime Historical Map View
Heat Advisory
2026-07-13T21:00:00-06:00

* WHAT...High temperatures in the upper 90s to around 100. * WHERE...Fort Collins, Boulder and the western suburbs of Denver, and Denver. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Hot temperatures may cause heat illnesses.

South Platte River At Waterton, Co. Historical Data

Historical Data


Streamflow Range


Date Average 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010
01-01 65.06
01-02 70.94
01-03 70.31
01-04 69.24
01-05 63.36
01-06 60.45
01-07 56.66
01-08 54.21
01-09 57.04
01-10 64.16
01-11 67.19
01-12 68.2
01-13 63.93
01-14 72.59
01-15 68.96
01-16 74.16
01-17 62.7
01-18 59.29
01-19 55.76
01-20 48.11
01-21 49.67
01-22 51.49
01-23 45.66
01-24 43.69
01-25 42.03
01-26 40.23
01-27 41.2
01-28 40.83
01-29 40.7
01-30 46.71
01-31 44.59
02-01 43.29
02-02 46.81
02-03 48.21
02-04 47.82
02-05 45.29
02-06 45.55
02-07 42.35
02-08 42.64
02-09 42.58
02-10 43.21
02-11 44.32
02-12 44.39
02-13 44.97
02-14 46.41
02-15 42.98
02-16 41.51
02-17 46.89
02-18 37.45
02-19 35.66
02-20 39.38
02-21 32.81
02-22 35.44
02-23 31.57
02-24 30.56
02-25 28.97
02-26 32.39
02-27 28.71
02-28 25.07
02-29 23.1
03-01 25.4
03-02 26.31
03-03 26.74
03-04 25.0
03-05 25.33
03-06 23.64
03-07 23.72
03-08 24.38
03-09 24.36
03-10 28.37
03-11 26.96
03-12 25.13
03-13 27.39
03-14 27.81
03-15 29.15
03-16 27.53
03-17 27.63
03-18 28.13
03-19 27.2
03-20 27.5
03-21 27.81
03-22 28.02
03-23 29.94
03-24 30.81
03-25 30.83
03-26 28.65
03-27 28.46
03-28 29.56
03-29 30.46
03-30 29.88
03-31 30.46
04-01 32.0
04-02 36.47
04-03 34.63
04-04 32.08
04-05 36.69
04-06 36.72
04-07 34.77
04-08 34.35
04-09 32.95
04-10 31.82
04-11 40.42
04-12 37.61
04-13 39.04
04-14 47.23
04-15 49.09
04-16 50.8
04-17 45.43
04-18 41.27
04-19 41.61
04-20 47.2
04-21 55.21
04-22 55.26
04-23 69.85
04-24 97.51
04-25 103.63
04-26 114.93
04-27 114.32
04-28 121.55
04-29 106.92
04-30 101.3
05-01 98.39
05-02 109.74
05-03 120.38
05-04 124.86
05-05 135.88
05-06 156.1
05-07 153.53
05-08 151.99
05-09 174.25
05-10 215.15
05-11 190.75
05-12 213.65
05-13 247.36
05-14 225.04
05-15 227.48
05-16 218.56
05-17 234.24
05-18 234.11
05-19 244.94
05-20 258.45
05-21 279.09
05-22 265.64
05-23 311.51
05-24 302.09
05-25 318.22
05-26 325.33
05-27 287.33
05-28 272.26
05-29 258.5
05-30 269.26
05-31 292.68
06-01 301.94
06-02 329.43
06-03 293.45
06-04 278.66
06-05 295.55
06-06 310.13
06-07 361.39
06-08 380.23
06-09 364.43
06-10 400.4
06-11 364.94
06-12 374.84
06-13 430.44
06-14 450.58
06-15 457.03
06-16 407.78
06-17 411.45
06-18 422.62
06-19 416.24
06-20 408.48
06-21 435.58
06-22 438.53
06-23 408.37
06-24 415.49
06-25 351.5
06-26 353.67
06-27 306.21
06-28 354.56
06-29 332.46
06-30 352.72
07-01 345.18
07-02 351.97
07-03 374.53
07-04 309.3
07-05 343.35
07-06 388.44
07-07 383.59
07-08 369.43
07-09 350.07
07-10 350.51
07-11 309.75
07-12 295.02
07-13 330.45
07-14 293.22
07-15 316.09
07-16 327.06
07-17 317.85
07-18 285.55
07-19 268.79
07-20 243.47
07-21 243.04
07-22 265.51
07-23 218.89
07-24 167.5
07-25 159.43
07-26 164.7
07-27 158.74
07-28 112.01
07-29 128.25
07-30 129.15
07-31 159.03
08-01 154.67
08-02 136.65
08-03 158.97
08-04 167.33
08-05 170.84
08-06 159.13
08-07 160.92
08-08 184.52
08-09 175.45
08-10 172.15
08-11 168.9
08-12 162.33
08-13 155.83
08-14 156.71
08-15 159.37
08-16 166.59
08-17 153.79
08-18 150.11
08-19 123.51
08-20 102.76
08-21 95.98
08-22 101.89
08-23 111.33
08-24 97.05
08-25 100.81
08-26 95.9
08-27 96.61
08-28 103.35
08-29 112.49
08-30 95.35
08-31 110.3
09-01 113.03
09-02 99.75
09-03 93.87
09-04 89.06
09-05 91.35
09-06 90.41
09-07 80.92
09-08 78.53
09-09 76.05
09-10 72.51
09-11 76.65
09-12 78.62
09-13 69.95
09-14 80.99
09-15 84.88
09-16 100.11
09-17 75.79
09-18 62.17
09-19 55.02
09-20 46.55
09-21 43.05
09-22 40.51
09-23 42.3
09-24 40.6
09-25 35.72
09-26 39.81
09-27 49.58
09-28 56.71
09-29 49.42
09-30 41.84
10-01 41.16
10-02 49.19
10-03 49.31
10-04 39.57
10-05 34.18
10-06 31.56
10-07 34.01
10-08 34.48
10-09 34.73
10-10 36.21
10-11 40.72
10-12 38.64
10-13 33.75
10-14 34.13
10-15 36.83
10-16 41.92
10-17 47.63
10-18 36.24
10-19 31.85
10-20 33.17
10-21 32.06
10-22 35.03
10-23 34.47
10-24 33.16
10-25 35.03
10-26 38.18
10-27 41.59
10-28 40.62
10-29 34.72
10-30 36.17
10-31 36.22
11-01 34.32
11-02 33.71
11-03 33.11
11-04 36.08
11-05 38.18
11-06 33.91
11-07 34.39
11-08 33.93
11-09 30.97
11-10 31.45
11-11 31.47
11-12 32.03
11-13 31.17
11-14 34.61
11-15 37.92
11-16 39.55
11-17 38.94
11-18 33.81
11-19 34.52
11-20 32.63
11-21 31.28
11-22 29.67
11-23 30.25
11-24 29.92
11-25 29.71
11-26 31.21
11-27 30.09
11-28 32.66
11-29 31.69
11-30 33.05
12-01 32.36
12-02 34.25
12-03 35.16
12-04 34.89
12-05 35.04
12-06 33.37
12-07 33.05
12-08 33.0
12-09 34.52
12-10 36.46
12-11 36.26
12-12 44.71
12-13 64.33
12-14 52.78
12-15 53.18
12-16 51.52
12-17 49.86
12-18 47.46
12-19 46.45
12-20 48.9
12-21 44.77
12-22 44.49
12-23 44.99
12-24 47.44
12-25 47.41
12-26 46.68
12-27 44.74
12-28 45.6
12-29 54.26
12-30 58.63
12-31 53.54

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index