Extreme Heat Watch
2026-08-21T20:00:00-07:00

* WHAT...Dangerously hot conditions with temperatures up to 115 to 118 degrees expected through Death Valley and the Lower Colorado River Valley, with highs between 107 to 110 degrees elsewhere. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada. * WHEN...From Tuesday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Spencer Creek Near Peach Springs, Az 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 2.3
01-02 2.28
01-03 2.07
01-04 2.07
01-05 2.08
01-06 2.1
01-07 2.17
01-08 1.95
01-09 2.17
01-10 2.3
01-11 2.4
01-12 2.51
01-13 2.57
01-14 2.65
01-15 2.4
01-16 2.51
01-17 4.42
01-18 4.74
01-19 4.7
01-20 3.67
01-21 3.19
01-22 4.43
01-23 3.81
01-24 3.92
01-25 3.71
01-26 3.92
01-27 3.67
01-28 3.73
01-29 3.72
01-30 3.69
01-31 3.83
02-01 3.88
02-02 3.83
02-03 3.96
02-04 4.07
02-05 4.02
02-06 3.63
02-07 4.25
02-08 4.0
02-09 3.86
02-10 3.88
02-11 3.0
02-12 3.02
02-13 2.72
02-14 2.82
02-15 3.02
02-16 3.0
02-17 3.27
02-18 3.18
02-19 2.99
02-20 2.52
02-21 2.88
02-22 2.84
02-23 2.7
02-24 3.02
02-25 2.63
02-26 2.31
02-27 2.32
02-28 2.78
02-29 2.81
03-01 2.74
03-02 2.78
03-03 2.71
03-04 2.32
03-05 2.34
03-06 2.66
03-07 2.59
03-08 2.88
03-09 2.55
03-10 2.16
03-11 2.21
03-12 2.19
03-13 2.21
03-14 2.16
03-15 2.22
03-16 17.18
03-17 2.21
03-18 2.19
03-19 4.73
03-20 2.12
03-21 2.06
03-22 3.34
03-23 2.0
03-24 1.97
03-25 1.95
03-26 1.95
03-27 1.92
03-28 1.9
03-29 1.96
03-30 1.98
03-31 2.08
04-01 1.91
04-02 1.91
04-03 1.87
04-04 1.9
04-05 1.92
04-06 1.92
04-07 1.87
04-08 1.86
04-09 1.84
04-10 1.86
04-11 1.81
04-12 1.6
04-13 1.61
04-14 1.62
04-15 1.64
04-16 1.64
04-17 1.66
04-18 1.66
04-19 1.66
04-20 1.67
04-21 1.62
04-22 1.62
04-23 1.61
04-24 1.63
04-25 1.63
04-26 1.6
04-27 1.54
04-28 1.55
04-29 1.55
04-30 1.43
05-01 1.96
05-02 1.88
05-03 1.9
05-04 1.95
05-05 1.92
05-06 2.01
05-07 1.92
05-08 1.96
05-09 2.05
05-10 2.05
05-11 1.97
05-12 1.98
05-13 2.0
05-14 1.98
05-15 1.98
05-16 1.92
05-17 1.94
05-18 1.87
05-19 1.99
05-20 1.93
05-21 1.93
05-22 1.87
05-23 1.87
05-24 1.89
05-25 1.88
05-26 1.94
05-27 1.92
05-28 1.92
05-29 1.92
05-30 1.83
05-31 1.9
06-01 1.95
06-02 1.86
06-03 1.86
06-04 1.82
06-05 1.97
06-06 2.09
06-07 1.92
06-08 1.8
06-09 1.84
06-10 1.8
06-11 1.93
06-12 4.04
06-13 3.02
06-14 3.46
06-15 2.81
06-16 2.78
06-17 2.73
06-18 1.86
06-19 1.83
06-20 1.89
06-21 1.9
06-22 1.83
06-23 1.89
06-24 1.89
06-25 1.83
06-26 1.78
06-27 1.87
06-28 1.96
06-29 1.92
06-30 1.89
07-01 1.88
07-02 1.92
07-03 1.86
07-04 1.95
07-05 1.9
07-06 1.94
07-07 2.11
07-08 2.17
07-09 3.33
07-10 2.06
07-11 2.16
07-12 2.14
07-13 2.09
07-14 2.73
07-15 2.39
07-16 3.08
07-17 3.37
07-18 3.41
07-19 14.01
07-20 6.13
07-21 3.7
07-22 3.71
07-23 3.38
07-24 3.35
07-25 2.04
07-26 4.82
07-27 4.77
07-28 4.02
07-29 3.35
07-30 4.07
07-31 3.9
08-01 3.09
08-02 2.2
08-03 4.11
08-04 5.13
08-05 3.67
08-06 3.54
08-07 3.63
08-08 3.83
08-09 3.8
08-10 8.41
08-11 3.85
08-12 11.94
08-13 10.41
08-14 4.83
08-15 4.88
08-16 7.86
08-17 5.89
08-18 6.16
08-19 8.31
08-20 5.56
08-21 4.2
08-22 2.88
08-23 4.04
08-24 8.98
08-25 5.64
08-26 7.54
08-27 5.09
08-28 5.09
08-29 4.52
08-30 6.12
08-31 8.99
09-01 6.9
09-02 7.23
09-03 7.38
09-04 7.33
09-05 10.63
09-06 5.2
09-07 4.76
09-08 4.57
09-09 4.82
09-10 3.98
09-11 8.73
09-12 4.22
09-13 3.76
09-14 5.6
09-15 3.26
09-16 3.27
09-17 3.23
09-18 3.18
09-19 3.22
09-20 3.13
09-21 3.73
09-22 3.2
09-23 3.38
09-24 3.26
09-25 3.55
09-26 3.52
09-27 3.24
09-28 3.47
09-29 3.19
09-30 3.37
10-01 1.83
10-02 2.17
10-03 2.55
10-04 2.29
10-05 3.68
10-06 3.14
10-07 3.17
10-08 3.05
10-09 3.06
10-10 3.1
10-11 3.27
10-12 3.02
10-13 3.32
10-14 3.24
10-15 3.14
10-16 2.61
10-17 3.07
10-18 9.16
10-19 3.53
10-20 7.74
10-21 3.05
10-22 3.55
10-23 3.78
10-24 3.65
10-25 3.56
10-26 3.7
10-27 3.64
10-28 3.66
10-29 3.62
10-30 3.56
10-31 3.66
11-01 2.99
11-02 3.03
11-03 3.98
11-04 3.73
11-05 3.9
11-06 4.24
11-07 4.36
11-08 4.48
11-09 4.19
11-10 4.5
11-11 4.54
11-12 4.28
11-13 4.1
11-14 3.93
11-15 3.42
11-16 3.68
11-17 3.0
11-18 2.83
11-19 2.79
11-20 2.69
11-21 3.31
11-22 2.8
11-23 2.71
11-24 2.47
11-25 2.33
11-26 2.58
11-27 2.73
11-28 3.16
11-29 2.64
11-30 3.3
12-01 2.85
12-02 2.61
12-03 2.46
12-04 2.69
12-05 2.66
12-06 2.97
12-07 3.18
12-08 3.51
12-09 3.18
12-10 3.12
12-11 3.17
12-12 3.03
12-13 3.65
12-14 3.3
12-15 3.97
12-16 2.3
12-17 2.51
12-18 4.06
12-19 3.68
12-20 3.66
12-21 3.89
12-22 4.44
12-23 2.96
12-24 3.01
12-25 3.1
12-26 2.27
12-27 2.21
12-28 2.38
12-29 2.3
12-30 2.37
12-31 2.28

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index