Overview Realtime Historical Map View
Extreme Heat Warning
2026-08-04T20:00:00-07:00

* WHAT...Dangerously hot and humid conditions. Afternoon temperatures 107 to 117. Major to Extreme Heat Risk. * WHERE...Yuma, La Paz, and Eastern Riverside Counties, including the Colorado River Valley. * WHEN...Until 8 PM MST /8 PM PDT/ Tuesday. * IMPACTS...Increase in heat related illnesses, including heat cramps, heat exhaustion, and heat stroke. Heat stroke can lead to death.

Poston Wasteway Near Poston, 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
01-01 120.65
01-02 158.09
01-03 112.39
01-04 163.29
01-05 104.66
01-06 117.1
01-07 78.71
01-08 79.18
01-09 141.16
01-10 69.19
01-11 87.72
01-12 75.51
01-13 98.16
01-14 80.17
01-15 103.67
01-16 111.5
01-17 86.56
01-18 110.18
01-19 148.19
01-20 121.13
01-21 114.23
01-22 95.67
01-23 183.36
01-24 150.73
01-25 115.18
01-26 126.91
01-27 163.84
01-28 142.41
01-29 101.03
01-30 109.01
01-31 114.3
02-01 122.84
02-02 100.79
02-03 102.52
02-04 116.77
02-05 129.92
02-06 167.45
02-07 120.21
02-08 133.27
02-09 123.78
02-10 163.13
02-11 155.32
02-12 121.96
02-13 152.3
02-14 125.11
02-15 129.25
02-16 144.57
02-17 146.19
02-18 133.02
02-19 137.23
02-20 131.7
02-21 127.81
02-22 133.25
02-23 135.85
02-24 121.42
02-25 125.42
02-26 119.24
02-27 163.23
02-28 144.25
02-29 193.68
03-01 143.61
03-02 131.14
03-03 145.63
03-04 133.35
03-05 120.97
03-06 131.79
03-07 117.34
03-08 122.99
03-09 124.49
03-10 130.12
03-11 112.54
03-12 116.54
03-13 100.45
03-14 101.78
03-15 115.9
03-16 95.84
03-17 107.6
03-18 93.91
03-19 124.95
03-20 152.18
03-21 117.77
03-22 122.67
03-23 130.15
03-24 135.45
03-25 131.79
03-26 117.91
03-27 136.57
03-28 105.14
03-29 112.99
03-30 113.93
03-31 141.44
04-01 122.49
04-02 131.68
04-03 115.68
04-04 155.14
04-05 140.75
04-06 143.45
04-07 154.14
04-08 127.16
04-09 109.64
04-10 132.39
04-11 139.91
04-12 117.85
04-13 156.96
04-14 160.53
04-15 126.06
04-16 137.25
04-17 112.23
04-18 120.96
04-19 113.58
04-20 119.45
04-21 126.44
04-22 146.08
04-23 143.5
04-24 239.55
04-25 181.76
04-26 143.04
04-27 173.18
04-28 122.64
04-29 153.27
04-30 127.19
05-01 101.07
05-02 157.57
05-03 160.69
05-04 180.92
05-05 175.46
05-06 147.91
05-07 204.68
05-08 157.18
05-09 129.61
05-10 155.88
05-11 160.85
05-12 131.34
05-13 141.0
05-14 202.14
05-15 155.88
05-16 159.76
05-17 174.62
05-18 192.64
05-19 202.58
05-20 180.95
05-21 158.42
05-22 168.22
05-23 184.57
05-24 162.23
05-25 154.54
05-26 151.12
05-27 173.83
05-28 137.16
05-29 154.64
05-30 148.04
05-31 139.69
06-01 144.93
06-02 131.41
06-03 142.65
06-04 148.07
06-05 133.78
06-06 175.27
06-07 179.44
06-08 159.99
06-09 116.12
06-10 151.57
06-11 149.61
06-12 179.01
06-13 177.0
06-14 165.24
06-15 142.49
06-16 148.85
06-17 169.76
06-18 154.97
06-19 237.56
06-20 133.95
06-21 163.21
06-22 189.81
06-23 139.29
06-24 178.18
06-25 242.58
06-26 152.44
06-27 118.32
06-28 129.64
06-29 128.07
06-30 185.48
07-01 127.13
07-02 164.66
07-03 154.88
07-04 167.21
07-05 190.2
07-06 176.5
07-07 147.58
07-08 155.9
07-09 135.62
07-10 128.56
07-11 175.91
07-12 93.1
07-13 134.88
07-14 135.3
07-15 115.76
07-16 126.81
07-17 137.9
07-18 132.83
07-19 169.34
07-20 144.55
07-21 119.05
07-22 139.67
07-23 135.29
07-24 153.86
07-25 192.34
07-26 146.75
07-27 164.2
07-28 146.43
07-29 114.85
07-30 162.59
07-31 101.58
08-01 153.59
08-02 154.14
08-03 147.58
08-04 149.61
08-05 151.37
08-06 148.72
08-07 139.14
08-08 189.63
08-09 177.02
08-10 151.85
08-11 172.22
08-12 173.42
08-13 197.36
08-14 170.62
08-15 147.57
08-16 153.47
08-17 145.33
08-18 119.91
08-19 155.14
08-20 155.22
08-21 160.91
08-22 150.3
08-23 142.34
08-24 113.62
08-25 159.51
08-26 116.52
08-27 145.42
08-28 188.49
08-29 163.2
08-30 182.58
08-31 135.82
09-01 188.23
09-02 151.16
09-03 146.57
09-04 158.88
09-05 156.38
09-06 138.52
09-07 137.27
09-08 164.94
09-09 134.85
09-10 151.28
09-11 141.0
09-12 142.11
09-13 148.7
09-14 129.99
09-15 150.16
09-16 163.72
09-17 149.65
09-18 143.33
09-19 154.77
09-20 182.91
09-21 169.07
09-22 142.62
09-23 149.94
09-24 117.09
09-25 109.69
09-26 131.08
09-27 106.79
09-28 138.88
09-29 136.63
09-30 174.29
10-01 144.75
10-02 149.67
10-03 155.88
10-04 154.21
10-05 137.43
10-06 148.78
10-07 176.35
10-08 171.31
10-09 136.67
10-10 137.55
10-11 132.37
10-12 151.81
10-13 124.56
10-14 109.57
10-15 123.52
10-16 111.04
10-17 148.55
10-18 126.76
10-19 109.77
10-20 139.77
10-21 88.2
10-22 102.67
10-23 98.23
10-24 117.82
10-25 142.74
10-26 105.51
10-27 129.86
10-28 131.18
10-29 137.47
10-30 108.34
10-31 139.52
11-01 114.42
11-02 95.99
11-03 124.66
11-04 112.69
11-05 135.21
11-06 142.51
11-07 159.53
11-08 120.8
11-09 123.7
11-10 119.22
11-11 104.1
11-12 119.82
11-13 118.13
11-14 113.62
11-15 121.45
11-16 132.58
11-17 119.08
11-18 112.53
11-19 120.81
11-20 108.74
11-21 129.42
11-22 92.37
11-23 99.27
11-24 106.73
11-25 124.56
11-26 139.28
11-27 141.23
11-28 100.33
11-29 93.77
11-30 134.32
12-01 116.64
12-02 109.36
12-03 138.85
12-04 109.15
12-05 116.66
12-06 91.39
12-07 87.29
12-08 110.83
12-09 99.14
12-10 88.08
12-11 157.88
12-12 150.14
12-13 136.76
12-14 149.55
12-15 145.58
12-16 79.63
12-17 119.31
12-18 148.51
12-19 125.56
12-20 101.15
12-21 86.19
12-22 98.73
12-23 61.18
12-24 103.6
12-25 114.31
12-26 72.35
12-27 98.23
12-28 83.6
12-29 110.59
12-30 98.26
12-31 71.91

Annual Peak Streamflow


Seasonal Comparison


Oceanic Nino Index