Overview Realtime Historical Map View
Extreme Heat Warning
2026-08-29T20:00:00-07:00

* WHAT...Dangerously hot conditions. It will also be humid through the weekend. Afternoon temperatures 108 to 119 expected. Major to Extreme Heat Risk. * WHERE...Portions of southwest Arizona and southeast California. * WHEN...Until 8 PM MST /8 PM PDT/ Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.

Drain 8-B Near Winterhaven, Ca 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 9.74
01-02 8.94
01-03 9.51
01-04 9.43
01-05 9.66
01-06 9.33
01-07 9.86
01-08 9.16
01-09 9.12
01-10 9.74
01-11 8.92
01-12 9.57
01-13 9.07
01-14 9.52
01-15 9.23
01-16 8.86
01-17 9.12
01-18 8.88
01-19 9.2
01-20 8.76
01-21 8.65
01-22 9.21
01-23 9.07
01-24 8.67
01-25 8.98
01-26 9.16
01-27 8.61
01-28 8.47
01-29 8.67
01-30 8.56
01-31 8.92
02-01 8.82
02-02 9.26
02-03 8.81
02-04 9.24
02-05 9.0
02-06 8.6
02-07 8.28
02-08 8.66
02-09 8.27
02-10 8.58
02-11 8.4
02-12 8.7
02-13 8.93
02-14 8.32
02-15 8.64
02-16 8.89
02-17 9.4
02-18 8.64
02-19 9.2
02-20 8.46
02-21 8.97
02-22 8.24
02-23 8.43
02-24 8.14
02-25 8.28
02-26 8.46
02-27 9.22
02-28 9.12
02-29 9.1
03-01 8.88
03-02 8.7
03-03 8.89
03-04 8.96
03-05 8.8
03-06 8.91
03-07 9.03
03-08 9.06
03-09 8.79
03-10 9.55
03-11 8.96
03-12 8.95
03-13 8.84
03-14 10.66
03-15 9.31
03-16 8.8
03-17 9.06
03-18 9.12
03-19 9.52
03-20 9.88
03-21 9.79
03-22 10.12
03-23 9.99
03-24 9.96
03-25 10.29
03-26 9.91
03-27 9.82
03-28 9.71
03-29 10.01
03-30 10.02
03-31 11.1
04-01 10.17
04-02 10.76
04-03 10.28
04-04 10.57
04-05 10.63
04-06 11.14
04-07 11.02
04-08 11.03
04-09 10.57
04-10 10.65
04-11 10.85
04-12 11.1
04-13 11.38
04-14 11.22
04-15 11.1
04-16 12.29
04-17 11.69
04-18 11.5
04-19 11.75
04-20 11.6
04-21 12.05
04-22 11.59
04-23 11.71
04-24 11.72
04-25 11.61
04-26 12.3
04-27 11.83
04-28 11.53
04-29 12.21
04-30 11.95
05-01 11.89
05-02 11.84
05-03 12.35
05-04 12.16
05-05 12.65
05-06 12.64
05-07 12.36
05-08 12.3
05-09 12.36
05-10 12.02
05-11 12.0
05-12 12.07
05-13 12.15
05-14 12.5
05-15 12.4
05-16 12.08
05-17 12.41
05-18 12.45
05-19 12.36
05-20 12.14
05-21 12.17
05-22 11.9
05-23 11.85
05-24 11.78
05-25 11.72
05-26 11.66
05-27 11.78
05-28 11.76
05-29 12.56
05-30 11.88
05-31 11.68
06-01 11.72
06-02 11.38
06-03 11.86
06-04 11.97
06-05 12.01
06-06 11.67
06-07 11.71
06-08 11.4
06-09 11.73
06-10 11.69
06-11 11.69
06-12 12.07
06-13 12.05
06-14 12.01
06-15 11.65
06-16 11.72
06-17 11.85
06-18 11.78
06-19 12.01
06-20 11.86
06-21 12.1
06-22 12.08
06-23 12.01
06-24 11.94
06-25 12.25
06-26 11.85
06-27 12.29
06-28 12.04
06-29 12.0
06-30 12.32
07-01 12.33
07-02 12.43
07-03 12.35
07-04 12.6
07-05 12.04
07-06 12.13
07-07 12.19
07-08 12.14
07-09 12.34
07-10 12.58
07-11 12.1
07-12 12.49
07-13 11.97
07-14 12.15
07-15 12.51
07-16 12.08
07-17 12.26
07-18 12.08
07-19 12.32
07-20 12.17
07-21 12.27
07-22 12.07
07-23 12.36
07-24 12.37
07-25 12.49
07-26 12.51
07-27 12.33
07-28 12.22
07-29 12.48
07-30 12.53
07-31 12.92
08-01 11.91
08-02 12.28
08-03 12.43
08-04 12.15
08-05 12.76
08-06 12.75
08-07 12.39
08-08 12.81
08-09 12.7
08-10 12.52
08-11 12.45
08-12 12.49
08-13 12.44
08-14 12.51
08-15 12.46
08-16 12.54
08-17 12.72
08-18 12.79
08-19 13.58
08-20 13.25
08-21 13.08
08-22 12.95
08-23 13.79
08-24 13.53
08-25 13.52
08-26 13.96
08-27 13.6
08-28 13.54
08-29 13.53
08-30 13.71
08-31 13.7
09-01 13.56
09-02 13.25
09-03 13.44
09-04 14.78
09-05 16.05
09-06 13.61
09-07 13.16
09-08 13.33
09-09 13.54
09-10 13.31
09-11 12.98
09-12 13.17
09-13 13.07
09-14 13.32
09-15 13.06
09-16 13.43
09-17 13.71
09-18 13.96
09-19 13.34
09-20 13.33
09-21 13.53
09-22 13.52
09-23 13.37
09-24 13.91
09-25 14.21
09-26 13.87
09-27 13.46
09-28 13.81
09-29 13.48
09-30 13.85
10-01 12.9
10-02 14.17
10-03 13.63
10-04 14.47
10-05 14.63
10-06 14.78
10-07 14.55
10-08 14.52
10-09 14.29
10-10 13.12
10-11 13.72
10-12 13.63
10-13 13.65
10-14 14.76
10-15 13.18
10-16 14.08
10-17 14.53
10-18 14.4
10-19 15.46
10-20 15.45
10-21 15.05
10-22 14.29
10-23 14.54
10-24 15.2
10-25 13.86
10-26 13.16
10-27 14.66
10-28 13.71
10-29 13.64
10-30 15.0
10-31 14.21
11-01 14.69
11-02 15.26
11-03 13.46
11-04 14.78
11-05 13.91
11-06 12.81
11-07 13.73
11-08 14.72
11-09 13.89
11-10 12.7
11-11 13.35
11-12 14.33
11-13 13.45
11-14 12.54
11-15 13.24
11-16 13.95
11-17 13.59
11-18 13.98
11-19 13.08
11-20 12.97
11-21 13.28
11-22 12.98
11-23 13.16
11-24 12.53
11-25 12.89
11-26 12.6
11-27 12.98
11-28 12.56
11-29 12.49
11-30 11.96
12-01 12.48
12-02 12.02
12-03 12.01
12-04 11.37
12-05 12.35
12-06 11.96
12-07 11.78
12-08 11.64
12-09 11.19
12-10 11.0
12-11 11.67
12-12 11.09
12-13 10.84
12-14 11.79
12-15 11.05
12-16 10.89
12-17 11.4
12-18 10.81
12-19 10.42
12-20 10.64
12-21 10.53
12-22 10.58
12-23 10.57
12-24 10.88
12-25 9.74
12-26 9.37
12-27 9.62
12-28 9.63
12-29 9.76
12-30 10.15
12-31 10.54

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index