Overview Realtime Historical Map View
Heat Advisory
2026-08-03T18:00:00-06:00

* WHAT...Temperatures of 98 to 105 today and 96 to 103 on Monday. * WHERE...Fort Collins, Boulder and the western suburbs of Denver, Denver, Castle Rock, Briggsdale, and Greeley. * WHEN...Until 6 PM MDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses.

Big Thompson River At Mouth, Near La Salle, 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 73.23
01-02 68.98
01-03 74.29
01-04 65.92
01-05 63.98
01-06 68.15
01-07 78.6
01-08 62.92
01-09 63.92
01-10 65.9
01-11 68.07
01-12 65.54
01-13 68.29
01-14 66.02
01-15 65.76
01-16 63.66
01-17 63.76
01-18 63.34
01-19 62.98
01-20 62.27
01-21 61.48
01-22 61.27
01-23 61.41
01-24 59.74
01-25 62.26
01-26 59.51
01-27 59.11
01-28 57.36
01-29 58.14
01-30 58.45
01-31 61.23
02-01 58.84
02-02 58.34
02-03 64.16
02-04 71.06
02-05 65.17
02-06 59.62
02-07 60.21
02-08 59.68
02-09 59.89
02-10 60.43
02-11 60.38
02-12 58.05
02-13 59.95
02-14 60.69
02-15 60.14
02-16 58.65
02-17 63.15
02-18 60.14
02-19 59.91
02-20 58.63
02-21 60.13
02-22 59.12
02-23 58.2
02-24 61.12
02-25 60.14
02-26 58.8
02-27 58.88
02-28 58.74
02-29 59.45
03-01 60.69
03-02 58.65
03-03 59.57
03-04 63.65
03-05 60.96
03-06 59.79
03-07 60.99
03-08 63.43
03-09 61.66
03-10 62.23
03-11 60.12
03-12 60.31
03-13 57.92
03-14 63.59
03-15 63.88
03-16 59.28
03-17 60.62
03-18 60.67
03-19 59.99
03-20 64.81
03-21 62.87
03-22 61.72
03-23 64.0
03-24 66.78
03-25 65.97
03-26 63.62
03-27 62.05
03-28 62.29
03-29 65.61
03-30 61.96
03-31 56.52
04-01 52.59
04-02 52.33
04-03 55.13
04-04 54.55
04-05 55.88
04-06 54.1
04-07 53.57
04-08 48.52
04-09 47.26
04-10 42.92
04-11 39.65
04-12 38.61
04-13 38.84
04-14 38.59
04-15 37.19
04-16 37.71
04-17 46.86
04-18 47.91
04-19 41.4
04-20 38.98
04-21 41.12
04-22 40.76
04-23 42.12
04-24 45.44
04-25 38.86
04-26 40.28
04-27 41.65
04-28 53.06
04-29 63.35
04-30 57.43
05-01 57.8
05-02 67.21
05-03 69.08
05-04 62.02
05-05 64.16
05-06 68.58
05-07 79.93
05-08 104.48
05-09 160.91
05-10 206.42
05-11 168.26
05-12 190.08
05-13 175.18
05-14 152.6
05-15 136.84
05-16 156.21
05-17 159.57
05-18 193.7
05-19 211.24
05-20 275.43
05-21 204.05
05-22 186.31
05-23 215.96
05-24 254.74
05-25 270.67
05-26 319.75
05-27 303.01
05-28 231.76
05-29 238.88
05-30 228.78
05-31 235.72
06-01 279.41
06-02 239.1
06-03 222.69
06-04 206.85
06-05 284.41
06-06 278.73
06-07 288.57
06-08 331.37
06-09 277.87
06-10 269.68
06-11 283.21
06-12 334.63
06-13 330.47
06-14 368.95
06-15 335.14
06-16 260.75
06-17 273.73
06-18 322.93
06-19 300.73
06-20 279.57
06-21 282.47
06-22 235.66
06-23 195.18
06-24 163.77
06-25 144.08
06-26 118.54
06-27 113.29
06-28 98.44
06-29 79.16
06-30 73.72
07-01 73.19
07-02 87.98
07-03 82.99
07-04 74.83
07-05 90.65
07-06 95.41
07-07 95.9
07-08 105.03
07-09 107.49
07-10 94.32
07-11 81.49
07-12 69.49
07-13 68.56
07-14 59.75
07-15 67.37
07-16 74.43
07-17 74.23
07-18 65.64
07-19 63.97
07-20 60.29
07-21 57.52
07-22 58.49
07-23 66.23
07-24 60.17
07-25 56.19
07-26 63.41
07-27 62.54
07-28 59.11
07-29 62.38
07-30 69.4
07-31 63.51
08-01 68.19
08-02 71.88
08-03 64.32
08-04 87.81
08-05 81.59
08-06 67.94
08-07 70.01
08-08 72.24
08-09 60.93
08-10 61.5
08-11 58.33
08-12 54.71
08-13 52.79
08-14 55.54
08-15 56.93
08-16 56.87
08-17 57.98
08-18 55.54
08-19 52.45
08-20 54.59
08-21 56.33
08-22 53.51
08-23 52.11
08-24 48.58
08-25 45.67
08-26 59.46
08-27 57.25
08-28 59.55
08-29 62.09
08-30 62.48
08-31 57.75
09-01 55.35
09-02 54.26
09-03 49.66
09-04 51.39
09-05 50.87
09-06 51.15
09-07 49.96
09-08 54.88
09-09 55.64
09-10 56.56
09-11 56.94
09-12 79.52
09-13 365.62
09-14 51.43
09-15 51.03
09-16 475.71
09-17 424.24
09-18 323.97
09-19 273.36
09-20 232.52
09-21 172.31
09-22 54.99
09-23 56.37
09-24 65.85
09-25 101.62
09-26 87.04
09-27 72.84
09-28 123.28
09-29 118.44
09-30 116.78
10-01 113.67
10-02 111.03
10-03 101.85
10-04 91.63
10-05 103.21
10-06 95.29
10-07 81.72
10-08 82.71
10-09 78.14
10-10 71.95
10-11 64.85
10-12 69.58
10-13 68.23
10-14 67.1
10-15 71.57
10-16 72.35
10-17 71.49
10-18 70.43
10-19 70.92
10-20 67.64
10-21 83.36
10-22 95.32
10-23 99.17
10-24 91.67
10-25 92.91
10-26 104.36
10-27 118.41
10-28 131.63
10-29 145.99
10-30 128.42
10-31 106.97
11-01 87.99
11-02 86.08
11-03 88.99
11-04 88.8
11-05 87.95
11-06 84.88
11-07 86.31
11-08 82.38
11-09 82.65
11-10 83.06
11-11 81.83
11-12 77.58
11-13 77.68
11-14 75.83
11-15 77.33
11-16 76.24
11-17 74.12
11-18 73.05
11-19 71.31
11-20 73.68
11-21 73.04
11-22 69.29
11-23 68.34
11-24 70.5
11-25 66.22
11-26 67.82
11-27 70.03
11-28 68.05
11-29 68.15
11-30 67.98
12-01 67.38
12-02 67.74
12-03 67.43
12-04 67.72
12-05 64.92
12-06 63.46
12-07 63.54
12-08 62.89
12-09 65.82
12-10 65.48
12-11 63.95
12-12 64.34
12-13 65.2
12-14 65.07
12-15 66.02
12-16 67.7
12-17 69.24
12-18 69.83
12-19 70.74
12-20 63.59
12-21 61.89
12-22 61.71
12-23 60.61
12-24 62.7
12-25 61.46
12-26 64.12
12-27 64.44
12-28 64.44
12-29 63.45
12-30 64.62
12-31 62.22

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index